Nuestros investigadores

David Galicia Paredes

Biología Ambiental
Facultad de Ciencias. Universidad de Navarra
Líneas de investigación
Micromamíferos, Bioinformática, Morfología, Ecología de poblaciones, Biogeografía
Índice H
6, (WoS, 11/01/2019)
6, (Scopus, 11/01/2019)
8, (Google Scholar, 09/08/2019)

Publicaciones científicas más recientes (desde 2010)

Autores: Angulo Rodeles, Amaia (Autor de correspondencia); Galicia Paredes, David; Miranda Ferreiro, Rafael
ISSN 1470-160X  Vol. 125  2021  págs. 107557
Rivers are very vulnerable to fragmentation caused by the presence of man-made barriers. To restore river basin connectivity, numerous indices have been developed to calculate river fragmentation and optimise barrier mitigation actions. These methods usually calculate connectivity for whole river basins, but sometimes it is useful to analyse the connectivity for certain elements of interest. The main goal of this study was to develop a simple method to calculate the connectivity of specific riverine habitats or fish meta-populations. The framework of the Dendritic Connectivity Index (DCI) created by Cote et al. in 2009 was changed to develop the Population Connectivity Index (PCI). This index would depend on the number of populations, the total river length occupied by each population, the distance between populations, the dispersal capability of the fish species and the presence of barriers in the river. The outcome of the index is a percentage that measures the degree of connectivity in a meta-population. The PCI was tested in four Iberian fish species with different dispersal capabilities: Salmo trutta, Luciobarbus comizo, Anaecypris hispanica and Cobitis vettonica. The results show a natural connectivity between populations (without considering dams) of 7.95¿47.48%. The most connected meta-population was L. comizo while the most naturally fragmented meta-population was A. hispanica. When large impassable dams were added to the index the results show a connectivity of ...
Autores: Angulo Rodeles, Amaia (Autor de correspondencia); Galicia Paredes, David; Miranda Ferreiro, Rafael
ISSN 1470-160X  Vol. 117  2020 
Different indices have been developed to quantify the extent and severity of river fragmentation. These indices vary depending on the specific goals of the study. Here, we present a new Conservation Connectivity Index (CCIp) for potamodromous fish species that considers the conservation value (richness, rarity and vulnerability) of river segments. The Iberian Peninsula holds > 20 endemic and endangered potamodromous fish species as well as > 1000 large dams (> 1 hm3 of capacity). The CCIp was calculated for the eight most important river basins of the Iberian Peninsula and compared to the Dendritic Connectivity Index (DCIp) developed by Cote et al. in 2009, which uses only river length as a habitat variable. With the use of both DCIp and CCIp, the dams were analysed and ranked according to their impacts on the river basin. The main results show that Iberian river basins are heavily fragmented, with river basin connectivity percentages of less than 20% in most cases using both DCIp and CCIp. CCIp values are slightly higher than DCIP values in almost all cases. When the impact of individual dams is analysed, differences also appear between the DCIp and CCIp. CCIp highlights the impact of dams located in areas of high fish conservation value while DCIp emphasize the impact of dams fragmenting large river segments.
Autores: Fernandez-Eslava, B., (Autor de correspondencia); Alonso Soto, Daniel; Galicia Paredes, David; et al.
ISSN 2193-7192  Vol. 161  Nº 2  2020  págs. 481 - 490
Suspended moult is a relatively common phenomenon in birds, but it has remained relatively ignored for a long time in studies dealing with moulting process. Furthermore, the new and increasing number of models used to estimate moult duration systematically omit the fact that suspended moults can occur and that they significantly alter parameter estimates. Taking suspended moults into account is critical to obtain reliable moult-associated parameter estimates, which is fundamental given the demographic and evolutionary consequences of moult in birds. The main goal of this work is to develop a standardised method useful for characterising the main moulting parameters (such as the duration and starting date) of bird species that perform suspended moults. Additionally, with the aim of delving into our understanding of when and why suspended moults happen, we study their relationship with the occurrence of second breeding attempts in summer. We used data obtained from a Red Crossbill population in the Pyrenees during a period of 17 years. We observed that the percentage of crossbills undergoing suspended moult was approximately 50% during summer (July-August) and that moult suspension ultimately gives rise to a lengthened moulting period. Underhill-Zucchini models assume a time-linear replacement of feathers, overestimating the moult duration. Based on these same modelling approaches, we proposed a method to calculate the real moult duration after removing the time during which the moult was suspended. We also obtained evidence supporting the idea that crossbills suspend their moult as a strategy that could increase their breeding output in summer. The method proposed here can be used as a tool for working with species that undergo suspended moults.
Autores: Angulo Rodeles, Amaia (Autor de correspondencia); Galicia Paredes, David; Miranda Ferreiro, Rafael
ISSN 0213-8409  Vol. 39  Nº 2  2020  págs. 601 - 619
River connectivity is essential for the correct functioning of freshwater ecosystems at all scales. However, it has not received the necessary attention by researchers, managers and policymakers until recent years. In this review, we recap the state of knowledge in river connectivity and its applications to conservation. We describe the particular characteristics of river connectivity and summarise the effects of its interruption in different freshwater ecosystem elements. We then focus on the effects of the lack of segment connectivity in fish species and review the different methods developed to study it. The application of connectivity in freshwater fish conservation areas is also reviewed, which highlights the lack of studies on this subject. Finally, connectivity restoration is studied. The review addresses these topics in a general way and then focus on the Iberian Peninsula.The Iberian Peninsula is an interesting place to study river connectivity because it has one of the highest numbers of dams per square kilometre and a large number of endemic and endangered freshwater fish species. Despite the high number of fish species affected by water extraction and damming, river connectivity and its effect in Iberian freshwater fish populations have not been well studied. A small number of studies analyse the effect of small dams in nearby fish communities, but large-scale impact assessments are scarce.
Autores: Escribano Compains, Nora (Autor de correspondencia); Galicia Paredes, David; Ariño Plana, Arturo
ISSN 2535-0897  Vol. 3  Nº e37187  2019  págs. 1 - 2
Building on the development of Biodiversity Informatics, the Global Biodiversity Information Facility (GBIF) undertook the task of enabling access to the world¿s wealth of biodiversity data via the Internet. To date, GBIF has become, in many respects, the most extensive biodiversity information exchange infrastructure in the world, opening up a full range of possibilities for science.
Autores: Galicia Paredes, David (Autor de correspondencia); Amezcua Martínez, Ana Belén; Baquero Martín, Enrique; et al.
ISSN 2535-0897  Vol. 3  2019  págs. 1 - 2
In business, the "long-tail economy" refers to a market strategy where the gravity center shifts from a few high-demand products to many, varied products focused on small niches. Commercialization of individually low-demand products can be profitable as long as their production cost is low and, all taken together, they aggregate into a big chunk of the market. Similarly, in the "business" of biodiversity data acquisition, we can find several mainstream products that produce zillions of bits of information every year and account for most of the budget allocated to increase our primary data-based knowledge about Earth's biological diversity. These products play a crucial role in biodiversity research. However, along with these large global projects, there is a constellation of small-scale institutions that work locally, but whose contribution to our understanding of natural processes should not be dismissed. These information datasets can be collectively referred to as the "long-tail biodiversity data".
Autores: Escribano Compains, Nora; Galicia Paredes, David; Ariño Plana, Arturo
Revista: PLOS ONE
ISSN 1932-6203  Vol. 14  Nº 3: e0213542  2019  págs. 1 - 16
The advent of online data aggregator infrastructures has facilitated the accumulation of Digital Accessible Knowledge (DAK) about biodiversity. Despite the vast amount of freely available data records, their usefulness for research depends on completeness of each body of data regarding their spatial, temporal and taxonomic coverage. In this paper, we assess the completeness of DAK about terrestrial mammals distributed across the Iberian Peninsula. We compiled a dataset with all records about mammals occurring in the Iberian Peninsula available in the Global Biodiversity Information Facility and in the national atlases from Portugal and Spain. After cleaning the dataset of errors as well as records lacking collection dates or not determined to species level, we assigned all occurrences to a 10-km grid. We assessed inventory completeness by calculating the ratio between observed and expected richness (based on the Chao2 richness index) in each grid cell and classified cells as well-sampled or under-sampled. We evaluated survey coverage of well-sampled cells along four environmental gradients and temporal coverage. Out of 796,283 retrieved records, quality issues led us to remove 616,141 records unfit for this use. The main reason for discarding records was missing collection dates. Only 25.95% cells contained enough records to robustly estimate completeness. The DAK about terrestrial mammals from the Iberian Peninsula was low, and spatially and temporally biased.
Autores: Vedia Jiménez, Iván; Almeida, D.; Rodeles, A. A.; et al.
Revista: WATER
ISSN 2073-4441  Vol. 11  Nº 3  2019  págs. 1 - 17
The signal crayfish Pacifastacus leniusculus Dana, 1852 is a successful invasive species in the Iberian Peninsula. This is of particular conservation concern, as fish fauna is highly endemic and also threatened within this ecoregion. The aim of this study was to analyze behavioral interactions and trophic overlap between signal crayfish and native fishes in Iberian rivers (northern Spain). Video cameras were used to record fish "dominance/evasion" after spatial encounters with crayfish. Diet composition and isotopic signatures (¿13C and ¿15N) were compared to evaluate the niche overlap. Fish were dominant in 25% of the encounters with juvenile crayfish, whereas this percentage was only 4% with adult crayfish. Observations showed a high fish "evasion" response for Pyrenean stone loach Barbatula quignardi (B¿cescu-Me¿ter, 1967) (>30%). Dietary results showed a high trophic overlap between signal crayfish with the pelagic Pyrenean minnow Phoxinus bigerri Kottelat, 2007 and the benthic loach. However, the isotopic niche overlap was low, with brown trout Salmo trutta L., 1758 showing the highest area (only 0.1 ¿2). Overall, our findings suggest that interferences may occur with native species for food (i.e., benthic invertebrates). Consequently, measures should be applied to control invasive crayfish in Iberian rivers.
Autores: Angulo Rodeles, Amaia (Autor de correspondencia); Leunda Urretavizcaya, Pedro Manuel; Elso, J. ; et al.
ISSN 2044-2041  Vol. 9  Nº 3  2019  págs. 278 - 288
River fragmentation is one of the main threats to diadromous fish species. We aimed to create a new and simple connectivity index to calculate habitat accessibility that considers habitat suitability for fish species, using the Bidasoa River basin in the north of Spain and Atlantic salmon (Salmo salar) as an example. A habitat connectivity index (HCI) was calculated for the river basin using upstream passability and segment length as variables. We then calculated a new habitat quality index for each river segment and multiplied it by river segment length to create the Breeding Habitat Connectivity Index (HCIb). These 2 indices were first calculated using only upstream barrier passability and then by adding downstream passability. In each case, the indices show different outcomes but a similar pattern: in all cases, main-stem obstacles closest to the river mouth most affected the connectivity index, even when habitat quality was considered. Although we cannot compare the indices to the real area used by salmon because spatial tracking was not performed during the study years, we consider that including habitat quality in a river connectivity index adds useful information for scientists and managers.
Autores: Escribano Compains, Nora; Oscoz Escudero, Javier; Galicia Paredes, David (Autor de correspondencia); et al.
ISSN 2052-4463  Vol. 5  Nº 180108  2018 
This dataset gathers information about the macroinvertatebrate samples and environmental variables collected on rivers of the Ebro River Basin (NE Iberian Peninsula), the second largest catchment in the Iberian Peninsula. The collection is composed of 1,776 sampling events carried out between 2005 and 2015 at more than 400 sampling sites. This dataset is part of a monitoring network set up by the Ebro Hydrographic Confederation, the official body entrusted with the care of the basin, to fulfill the requirements of the European Water Framework Directive. Biological indices based on the freshwater macroinvertebrate communities were used to evaluate the ecological status of the water bodies within the basin. Samples were qualitatively screened for all occurring taxa. Then, all individuals from all taxa in a quantitative subsample of each sample were counted. Biological indices were calculated to estimate water quality at each sampling site. All samples are kept at the Museum of Zoology of the University of Navarra.
Autores: Escribano Compains, Nora (Autor de correspondencia); Galicia Paredes, David; Ariño Plana, Arturo
ISSN 1758-0463  Vol. 2018  Nº bay033  2018  págs. 1 - 6
Researchers are embracing the open access movement to facilitate unrestricted availability of scientific results. One sign of this willingness is the steady increase in data freely shared online, which has prompted a corresponding increase in the number of papers using such data. Publishing datasets is a time-consuming process that is often seen as a courtesy, rather than a necessary step in the research process. Making data accessible allows further research, provides basic information for decision-making and contributes to transparency in science. Nevertheless, the ease of access to heaps of data carries a perception of `free lunch for all¿, and the work of data publishers is largely going unnoticed. Acknowledging such a significant effort involving the creation, management and publication of a dataset remains a flimsy, not well established practice in the scientific community. In a meta-analysis of published literature, we have observed various dataset citation practices, but mostly (92%) consisting of merely citing the data repository rather than the data publisher. Failing to recognize the work of data publishers might lead to a decrease in the number of quality datasets shared online, compromising potential research that is dependent on the availability of such data. We make an urgent appeal to raise awareness about this issue.
Autores: Vedia Jiménez, Iván; Galicia Paredes, David; Baquero Martín, Enrique; et al.
ISSN 1323-1650  Vol. 68  Nº 5  2017  págs. 900 - 908
The identification of habitat requirements of invasive species is essential to evaluate their spread and to assess the vulnerability of recipient ecosystems. We studied the distribution and abundance of the invasive signal crayfish (Pacifastacus leniusculus) in 43 sites in northern Spain and analysed the relationships with several abiotic and biotic parameters of the aquatic ecosystems. Our results indicated that the abundance of signal crayfish was positively associated with vegetation cover and negatively associated with boulders. Also, its abundance was positively correlated with water temperature, organic matter, cations (e.g. sodium), anions (e.g. sulfates) and abundance of some native fish species (Parachondrostoma miegii and Luciobarbus graellsii). We concluded that the habitat of signal crayfish is among salmonid stretches (headwaters) with cold waters and low proportion of organic debris, and among cyprinid stretches (low waters) with warmer waters which it inhabits with another invasive crayfish, the red swamp crayfish (Procambarus clarkii). Our analysis indicated that the presence of signal crayfish is limited in the uppermost stretches by lower water temperatures and a lower proportion of organic debris. The existence of a natural environmental limiting factor in upstream reaches facilitates the conservation of aquatic ecosystems and native fauna.
Autores: Angulo-Rodeles, A.; Galicia Paredes, David; Miranda Ferreiro, Rafael
ISSN 1052-7613  Vol. 27  Nº 4  2017  págs. 880 - 885
1. Many human activities in and on rivers cause the loss of freshwater biodiversity, especially fish, which now are one of the most endangered vertebrate groups. River fragmentation caused by the construction of dams is one of the main threats to fish species. In Spain, which has the highest number of dams per square kilometre in the world, more than half of all fish species are threatened by these constructions. The government has initiated the National Strategy for River Restoration, a plan to restore rivers and preserve their inhabitants, which includes the removal of dams. 2. An information search and query was conducted to determine if fish monitoring was performed before and after dam removal, and the result was negative. Therefore, an assessment of the effects of dam removal on fish communities at a large spatial scale was not possible. Instead, an analysis was carried out to measure the effects of dam removal on river connectivity using a geometric network. 3. The analysis of river connectivity improvement showed that 66% of removed dams had one or more dams less than 5km away. The removal of dams increased the connected river length by an average of 6.4km per dam removed, with the range varying between 1.04km and 9.48km, depending on the river basin. 4. These results show that, although monitoring programmes are strongly recommended after restoration actions, they are not usually performed. This is a wasted opportunity to gather large datasets to understand better the effects of human actions on fish communities and on rivers. 5. River connectivity results may reflect a demolition strategy based more on economic and social opportunism rather than on ecological considerations. It is strongly recommended that dam removal plans should be based on ecological selection methods to achieve greater river improvements with less investment.
Autores: Escribano Compains, Nora; Galicia Paredes, David; Ariño Plana, Arturo; et al.
ISSN 2052-4463  Vol. 3  2016  págs. 160085
We describe the pellet sampling data set from the Vertebrate Collection of the Museum of Zoology of the University of Navarra. This data set compiles all information about small mammals obtained from the analysis of owl pellets. The collection consists on skulls, mandibles, and some skeletons of 36 species of more than 72,000 georeferenced specimens. These specimens come from the Iberian Peninsula although most samples were collected in Navarra, a highly diverse transitional area of 10,000¿kilometre square sitting across three biogeographical regions. The collection spans more than forty years and is still growing as a result of the establishment of a barn owl pellet monitoring network in 2015. The program will provide critical information about the evolution of the small mammals¿ community in this transition zone as it changes over time.
Autores: Escribano Compains, Nora; Galicia Paredes, David; Ariño Plana, Arturo; et al.
Revista: ZOOKEYS
ISSN 1313-2989  Vol. 634  2016  págs. 137 - 150
In this paper five datasets are described that provide information about records of mammals in the Vertebrate Collection of the Museum of Zoology of the University of Navarra (MZNA-VERT). The datasets contain 3,466 records belonging to 20 species of mammals sampled across the transition zone between the Atlantic and Mediterranean biogeographical regions (north Iberian Peninsula). The datasets include both distributional data (georeferenced records) and basic biometric data of most of the vouchered specimens stored in the museum facilities. The samples originated mainly within research projects and PhD theses carried out in the former department of Zoology and Ecology of the University of Navarra between 1982 and 2011. The Darwin Core Archive Format datasets are accessible through GBIF.
Autores: Rodeles, A.; Galicia Paredes, David; Miranda Ferreiro, Rafael
ISSN 2052-4463  Vol. 3  2016  págs. UNSP 160091
The study of freshwater fish species biodiversity and community composition is essential for understanding river systems, the effects of human activities on rivers, and the changes these animals face. Conducting this type of research requires quantitative information on fish abundance, ideally with long-term series and fish body measurements. This Data Descriptor presents a collection of 12 datasets containing a total of 146,342 occurrence records of 41 freshwater fish species sampled in 233 localities of various Iberian river basins. The datasets also contain 148,749 measurement records (length and weight) for these fish. Data were collected in different sampling campaigns (from 1992 to 2015). Eleven datasets represent large projects conducted over several years, and another combines small sampling campaigns. The Iberian Peninsula contains high fish biodiversity, with numerous endemic species threatened by various menaces, such as water extraction and invasive species. These data may support the development of large biodiversity conservation studies.
Autores: Escribano Compains, Nora; Ariño Plana, Arturo; Galicia Paredes, David
Revista: PEERJ
ISSN 2167-8359  Vol. 4  Nº e274  2016  págs. e274
Background. Primary biodiversity records (PBR) are essential in many areas of scientific research as they document the biodiversity through time and space. However, concerns about PBR quality and fitness-for-use have grown, especially as derived from taxonomical, geographical and sampling effort biases. Nonetheless, the temporal bias stemming from data ageing has received less attention. We examine the effect of changes in land use in the information currentness, and therefore data obsolescence, in biodiversity databases. Methods. We created maps of land use changes for three periods (1956-1985, 1985-2000 and 2000-2012) at 5-kilometres resolution. For each cell we calculated the percentage of land use change within each period. We then overlaid distribution data about small mammals, and classified each data as 'non-obsolete or 'obsolete,' depending on both the amount of land use changes in the cell, and whether changes occurred at or after the data sampling's date. Results. A total of 14,528 records out of the initial 59,677 turned out to be non-obsolete after taking into account the changes in the land uses in Navarra. These obsolete data existed in 115 of the 156 cells analysed. Furthermore, more than one half of the remaining cells holding non-obsolete records had not been visited at least for the last fifteen years.
Autores: Díez León, M.; Bursian, S.; Galicia Paredes, David; et al.
ISSN 0168-1591  Vol. 177  2016  págs. 59 - 69
Enrichment studies for wild carnivores (e.g., in zoos) are often short-term, use enrichments of unknown motivational significance, and focus on glucocorticoids and stereotypic behaviour (SB), ignoring other stress-relevant variables. Our study assessed the broad behavioural and physiological effects of enriching American mink¿a model carnivore¿with preferred stimuli long-term, and investigated the welfare implications of individual differences in SB. We raised 64 male-female pairs with or without enrichment. At 7 months, pairs were split and mink individually housed (adults being solitary), first by being temporarily moved to identical non-enriched cages (permitting observation blind to rearing condition). Two weeks later, one mink per original pair (half female, half male) was returned to his/her rearing cage for re-observation, sample collection for faecal cortisol metabolite (FCM) analysis, and additional research for 1.5 years before being humanely killed. Stress-sensitive variables were then measured post-mortem. Enriched-raised mink in their rearing conditions excreted less FCM (F1,29 = 8.33, p = 0.003), and performed less SB than non-enriched mink. Two SB sub-types occurred: (1) `loco¿ stereotypies: locomotor, whole body and head stereotypies (e.g., pacing, nodding), previously shown to correlate with recurrent perseveration; and (2) repetitive scrabbling with the forepaws. Enriched housing reduced both (at 7 months: loco stereotypies: F1,60 = 25.3, p < 0.0001; scrabbling: F1,60 = 24.0, p < 0.001; effects still trends 1.5 years later). However, the sub-types responded differently to the current availability and/or usage of enrichment. Thus enrichment-use (which was stable) tended to negatively correlate with scrabbling but not loco stereotypies. Furthermore, after the relocation to identical non-enriched cages, loco stereotypies remained lower in enriched-reared than non-enriched-reared mink (F1,58 = 31.33, p < 0.0001), but scrabbling rapidly increased (such that within two weeks, enriched- and non-enriched-reared mink were indistinguishable). Post-mortem, enriched-reared mink showed less skeletal fluctuating asymmetry (F1,42 = 2.87, p = 0.048) and had heavier lymphoid organs (thymus: F1,41 = 3.43, p = 0.035; spleen: F1,45 = 13.11, p = 0.010). However, within treatment groups, neither these measures nor FCM covaried with SB. In conclusion, long-term housing with preferred enrichments not only reduced SB and FCM, but also induced anatomical changes consistent with better cell-mediated immunity and reduced developmental stress. In addition, these results should refine the use of SB and its sub-types in welfare assessment, since scrabbling seemed to reflect the prevailing presence/absence and utilisation of enrichment, while motor, whole body and head SBs appeared to reflect more stable, long-term effects of differential rearing; and furthermore, within each housing type, individual differences in SB appeared to reflect response styles rather than differential welfare.
Autores: Díez León, María; Miranda Ferreiro, Rafael; Ariño Plana, Arturo; et al.
ISSN 0888-8892  Vol. 29  Nº 2  2015  págs. 599 - 601
Autores: Debenedetti, A. L.; Sáinz-Elipe, S.; Sáez-Durán, S.; et al.
ISSN 0022-149X  Vol. 89  Nº 6  2015  págs. 727 - 733
The helminth fauna of the wood mouse, Apodemus sylvaticus, in the Erro River valley (Navarre, Spain) was investigated from a total of 150 mice between February 2001 and July 2002. An overall prevalence of 90.7% was recorded and up to 14 helminth species identified. The most prevalent species was the nematode Heligmosomoides polygyrus (78.0%), whereas Syphacia stroma was the species with the highest median abundance (19.8). The detection of Calodium hepaticum, Rodentolepis straminea and the larvae of Hydatigera taeniaeformis are significant, since these helminth species could be considered potential human parasites. The helminth infracommunity comprised no more than five species. A significant predominance of monoxenous species was detected. Statistically significant differences were also found between prevalences, helminth abundance, species richness and helminth diversity of sub-populations of the wood mouse determined by host age and season of capture, which agree with most of the studies carried out on this host. This study will shed light on the helminth community of the wood mouse from a region of Spain which has not previously been documented.
Autores: Galicia Paredes, David; Leunda Urretavizcaya, Pedro Manuel; Miranda Ferreiro, Rafael; et al.
ISSN 0002-8487  Vol. 144  Nº 2  2015  págs. 431 - 442
The Owens Tui Chub Siphateles bicolor snyderi has become endangered by introgressive hybridization with the Lahontan Tui Chub S. bicolor obesa since the 1960s. Adequate conservation strategies require prior identification of pure populations, which is usually difficult because the diagnostic features presented in the formal subspecies description do not always allow unequivocal determination of populations. In the present study, the shape and some meristic features of the scales, along with the shape of other bones with taxonomic value, were analyzed to distinguish both parental subspecies and their hybrids in samples diagnosed in a previous work using microsatellite DNA. Scales, pharyngeal arches, dentaries, cleithra, and opercula of 211 individuals from 16 localities across the Owens River and neighbouring basins in California and Nevada were compared. The results show that the meristic parameters of the scales were in agreement with values provided by Miller (1973) for the parental subspecies. Shape analyses were based on landmark or Fourier methods, depending on the shape characteristic of each structure. Geometric morphometric analyses provided variable discriminatory power between subspecies depending on the studied bone. In scales, pharyngeal arches, and dentaries, the derived morphological patterns matched the shape descriptions set forth by Miller (1973) for both parental subspecies. In all cases, the observed morphometric variability of hybrids was too high to separate them from parental subspecies. However, joint analysis of the five structures produced groupings that were concordant with the genetic analyses: localities of parental subspecies in separate groups and an intermediate group with the hybrid swarm localities that was morphologically closer to Lahontan. Finally, a new derived parameter (the ratio between scale lengths from the anterior and posterior body) is suggested as a promising tool for rapid discrimination of Owens Tui Chub from Lahontan Tui Chub and their hybrid populations.
Autores: Galicia Paredes, David; Pulido-Flores, G.; Miranda Ferreiro, Rafael; et al.
Revista: ZOOKEYS
ISSN 1313-2989  Nº 403  2014  págs. 67 - 109
The state of Hidalgo (Mexico) is an important region from the point of view of biodiversity. However, there exists a significant gap in accessible knowledge about species diversity and distribution, especially regarding to freshwater ecosystems. This dataset comprises the sampling records of two projects developed in Hidalgo between 2007 and 2009 about the freshwater fish communities of Tecocomulco lake and rivers belonging to the Metztitlan Canyon Biosphere Reserve. It contains the taxonomic identity (species level) and basic biometric data (total length and weight) as well as date of collection and coordinates of more than 9000 specimens. This dataset is the primary result of the first and unrepeated exhaustive freshwater fish's survey of Metztitlan Canyon Biosphere Reserve and Tecocomulco lake. It incorporates seven more species to the regional fish fauna, and new exclusive biometric data of ten species. This dataset can be used by studies dealing with, among other interests, North American freshwater fish diversity (species richness, distribution patterns) and biometric analyses, useful for the management and conservation of these areas. The complete dataset is also provided in Darwin Core Archive format.
Autores: Díez León, M.; Bowman, J.; Bursian, S.; et al.
Revista: PLOS ONE
ISSN 1932-6203  Vol. 8  Nº 11  2013  págs. e80494
Wild carnivores in zoos, conservation breeding centres, and farms commonly live in relatively small, unstimulating enclosures. Under these captive conditions, in a range of species including giant pandas, black-footed ferrets, and European mink, male reproductive abilities are often poor. Such problems have long been hypothesized to be caused by these animals' housing conditions. We show for the first time that rearing under welfare-improving (i.e., highly valued and stress-reducing) environmental enrichments enhances male carnivores' copulatory performance: in mate choice competitions, enriched male American mink (Neovison vison) mated more often than non-enriched males. We screened for several potential mediators of this effect. First was physiological stress and its impact on reproductive physiology; second, stress-mediated changes in morphology and variables related to immunocompetence that could influence male attractiveness; and third, behavioural changes likely to affect social competence, particularly autistic-like excessive routine and repetition ('perseveration') as is reflected in the stereotypies common in captive animals. Consistent with physiological stress, excreted steroid metabolites revealed that non-enriched males had higher cortisol levels and lower androgen levels than enriched conspecifics. Their os penises (bacula) also tended to be less developed. Consistent with reduced attractiveness, non-enriched males were lighter, with comparatively small spleens and a trend to greater fluctuating asymmetry. Consistent with impaired social competence, non-enriched males performed more stereotypic behaviour (e. g., pacing) in their home cages. Of all these effects, the only significant predictor of copulation number was stereotypy (a trend suggesting that low bodyweights may also be influential): highly stereotypic males gained the fewest copulations. The neurophysiological changes underlying stereotypy thus handicap males sexually. We hypothesise that such males are abnormally perseverative when interacting with females. Investigating similar problems in other taxa would be worthwhile, since many vertebrates, wild and domestic, live in conditions that cause stereotypic behaviour and/or impair neurological development.
Autores: Leunda Urretavizcaya, Pedro Manuel; Galicia Paredes, David; Miranda Ferreiro, Rafael; et al.
ISSN 1944-687X  Vol. 4  Nº 2  2013  págs. 326 - 331
Regression parameters for the length of several bony structures against fish body length, and for body length against body weight, were determined for Owens tui chub Siphateles bicolor snyderi, Lahontan tui chub Siphateles bicolor obesa, and hybrid swarm deriving from the two species. Two-hundred eleven individuals from 16 localities from the Owens River and neighboring basins along the border between California and Nevada were used for regression analyses. The coefficient of determination of linear regressions for scales, pharyngeal arches, dentaries, cleithra, and opercula against body length were consistently high (r(2) >= 0.9). Differences between subspecies were mainly with reference to the intercept parameter in comparisons involving Lahontan tui chub. Coefficients of determination from log-linear length-weight regressions were also high (r(2) >= 0.9) for individual taxa and for the pooled data set combining both Lahontan and hybrid species. The length-weight relationship did not differ between subspecies. Estimates of the length-weight relationship using data pooling both Lahontan and hybrid tui chub suggest a weak allometric growth effect (P < 0.05). The bone-length to body-length and body-length to body-weight relationships presented here will be useful tools for future dietary studies of tui chub predators as well as for archaeological and paleontological studies on tui chub remains.
Autores: Miranda Ferreiro, Rafael; Galicia Paredes, David; Monks, S.; et al.
Revista: The Southwestern Naturalist
ISSN 0038-4909  Vol. 57  Nº 3  2012  págs. 285 - 291
The primary objective was to document the diversity of fishes in Reserva de la Biosfera Barranca de Metztitlan, Hidalgo, Mexico. Samples were collected from 35 localities using electrofishing, nets, and angling, and from local fishermen. A total of 7,290 specimens was collected, representing 16 species (including 4 introduced and 4 translocated). This study adds seven species to the regional fish fauna, five of which are exotic.
Autores: Vilches Morales, Antonio; Miranda Ferreiro, Rafael; Arizaga, J.; et al.
ISSN 0003-4088  Vol. 48  Nº 3  2012  págs. 289 - 294
The relative importance of biotic and abiotic variables on the Common Kingfisher Alcedo atthis breeding distribution in northern Iberian rivers was quantified through surveys completed in 2007. Eight rivers were surveyed for "positive" and "negative" (control) breeding territories (PBT and NBT, respectively). PBT (N=9) were 3-km river sections with breeding pairs; NBT (N=8) were 3-km river sections close to PBT, where no pairs were found, with apparently similar features to the PBT and one or more cut banks suitable for nesting. Stepwise discriminant analysis (SDA) correctly classified 94.1% of territories and revealed PBT was associated with higher oxygen concentrations, a lower maximum depth and lower proportion of rockfills. Causes and consequences of these findings are discussed.
Autores: Miranda Ferreiro, Rafael; Galicia Paredes, David; Monks, S.; et al.
ISSN 0188-8897  Vol. 20  Nº 2  2010  págs. 185 - 190
A population of blackfin goodea Goodea atripinnis was encountered in the Metztitlan Canyon Biosphere Reserve (Panuco Basin, Hidalgo, Mexico). This species has a wide distribution across the Pacific Slope of Mexico, including the Lerma-Grande de Santiago basin, Ameca River, Magdalena Lake and the Balsas and Armeria basins. Biometric data were used for identification and comparison to those of other putative members of the genus. The taxonomic identification and systematic position of this species are discussed. Goodea luitpoldii and G. gracilis are confirmed as synonyms with G. atripinnis. Comments on conservation implications of this species and their Panuco Basin populations are given.
Autores: Galicia Paredes, David; Casas Jericó, María; Amezcua Martínez, Ana Belén; et al.
Libro:  La Divulgación del Conocimiento Evoluciona. Actas del VII Congreso de Comunicación Social de la Ciencia
2020  págs. 54 - 58
Autores: Pons Izquierdo, Juan José; Santamaría Ulecia, Jesús Miguel; Ariño Plana, Arturo; et al.
Libro:  Tecnologías de la Información Geográfica: perspectivas multidisciplinares en la sociedad del conocimiento
2018  págs. 414 - 423
La calidad del aire urbano es un aspecto muy relevante para el bienestar de los ciudadanos y está cada vez más presente en el debate social y político. Para contar con una atmósfera saludable en nuestras ciudades, resulta necesario disponer de información detallada sobre cómo se distribuye la contaminación en cada punto de la ciudad y no solo en torno a las cabinas de control de calidad del aire. En este contexto, se inscribe el proyecto LIFE+ RESPIRA (2014-2017), concebido como una iniciativa de ciencia ciudadana, en la que cerca de 150 ciclistas voluntarios han recorrido el área metropolitana de Pamplona a lo largo de dos años, equipados con captadores geolocalizados de diferentes tipos de contaminantes atmosféricos (CO , NOX, O3 y partículas en suspensión). A lo largo de ese tiempo, los voluntarios han recorrido unos 47.000 km en bicicleta, contribuyendo a obtener casi 150 millones de medidas en más de 4 millones de posiciones geolocalizadas a lo largo de las calles de la ciudad y sus alrededores, cubriendo la mayoría de las situaciones estacionales, horarias, climáticas y de tráfico de un año típico. Con toda esa ingente cantidad de información se ha podido realizar gran cantidad de mapas muy detallados de la calidad del aire, que han permitido modelizar el comportamiento de cada contaminante estudiado de acuerdo a las diferentes condiciones que se presentan.
Autores: Oscoz Escudero, Javier; Galicia Paredes, David; Miranda Ferreiro, Rafael
Libro:  Identification guide of freshwater macroinvertebrates of Spain
2011  págs. 1 - 5
This chapter provides a general introduction to the identification of macroinvertebrates, with particular emphasis on the management of river systems and the correct identification of these animals in field surveys. Subsequently, the study area and taxonomic groups considered are defined and delimited. Technical considerations about photographic methods are also included at the end of the chapter.
Autores: Oscoz Escudero, Javier; Galicia Paredes, David; Miranda Ferreiro, Rafael
Libro:  Identification guide of freshwater macroinvertebrates of Spain
2011  págs. 7 - 45
Autores: Oscoz Escudero, Javier; Galicia Paredes, David; Miranda Ferreiro, Rafael
Libro:  Identification guide of freshwater macroinvertebrates of Spain
2011  págs. 47 - 148
This section of the book includes brief morphological and anatomical descriptions of the studied taxa. Data on the biology of the families is also provided, partly for completeness but also to allow the reader to gain a better understanding of these animals. The list of authors for each taxon is included in the front matter of this book.
Autores: Almeida, D.; Anastacio, P. M.; Ariño Plana, Arturo; et al.
Autores: Santamaría Ulecia, Jesús Miguel (Editor); Ariño Plana, Arturo; León Anguiano, Bienvenido; et al.
Recoge los principales resultados generados durante la realización del proyecto LIFE+RESPIRA, llevado a cabo en la ciudad de Pamplona (Navarra, España) por un equipo interdisciplinar constituido por más de 30 investigadores pertenecientes a la Universidad de Navarra, el Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT) y Gestión Ambiental de Navarra (GAN-NIK). El libro, que se ha publicado en castellano y en inglés, se ha dividido en 7 capítulos: 1. ¿Ciudades sostenibles? 2. Exposición de los ciudadanos a la contaminación atmosférica 3. Papel de la vegetación urbana en la calidad del aire 4. Modelos de alta resolución para evaluar la calidad del aire 5. Impactos de la contaminación urbana 6. Movilidad y sostenibilidad urbanas 7. Comunicación y educación ambiental. Este libro pretende ser una guía de utilidad para científicos, gestores y ciudadanos, aportando un conjunto de herramientas que permitan mejorar la calidad de vida de nuestras ciudades. Además, quiere rendir un homenaje a todos los voluntarios ciclistas que han participado en dicho proyecto y que son los verdaderos artífices del mismo, ya que gracias a su dedicación incondicional durante más de dos años, han proporcionado una cantidad ingente de datos sobre la calidad del aire de la ciudad de Pamplona.
Autores: Santamaría Ulecia, Jesús Miguel (Editor); Ariño Plana, Arturo; León Anguiano, Bienvenido; et al.
This book collects the main outcomes that were generated during the implementation of the LIFE+RESPIRA project (LIFE13 ENV/ES/000417), carried out in the city of Pamplona, Navarra, Spain. The research was conducted by a cross-functional team made up of more than 30 researchers belonging to three entities: The University of Navarra, the Centre for Energy, Environmental and Technological Research (CIEMAT) and Environmental Management of Navarra (GAN-NIK).
Autores: Escala Urdapilleta, María Carmen; Galicia Paredes, David; Baquero Martín, Enrique; et al.
En esta guía quedan recogidos todos los grupos de mamíferos que tienen presencia en el entorno de Pamplona, así como sus principales características.
Autores: Oscoz Escudero, Javier (Editor); Galicia Paredes, David (Editor); Miranda Ferreiro, Rafael (Editor)
As a result of the European Commission¿s concern for the status of continental waters, and as a clear reflection of the notion of water as heritage to be conserved, in the year 2000 the Water Framework Directive (2000/60/CE) was enacted, its goal being to establish a framework to protect water and the different aquatic ecosystems by requiring the Member States to achieve a good ecological status in all their waters by 2015. Like all ecosystems, freshwater ecosystems undergo physical, chemical and energy-related changes, both of natural and anthropogenic origin. These disturbances affect the organisms living in them and those who utilize their resources. Therefore, evaluating these changes has become a very important task in order to better understand aquatic systems. The study and analysis of the ecological status of these ecosystems in relation to their conservation status and water quality is thus a fundamental tool for a more efficient and rational management of their resources, that is, a management that does not threaten the ecosystem. The present guide for the identification of Spanish freshwater macroinvertebrates aims to facilitate the job of those who go to great lengths to identify them in order to then determine biotic indices. It is not the aim of this book to serve as a zoological treaty, nor does it claim to add new information on the biology or the ecology of the taxa covered. This book is, simply, a working tool explicitly designed to facilitate the identification of the Spanish macroinvertebrates and the subsequent computing of biotic indices.
Autores: Oscoz Escudero, Javier; Galicia Paredes, David; Miranda Ferreiro, Rafael



Ecología I (F.Ciencias). 
Universidad de Navarra - Facultad de Ciencias.

Trabajo Fin de Grado (Gr.CCAA). 
Universidad de Navarra - Facultad de Ciencias.

Trabajo de Fin de Grado (Gr. Biología). 
Universidad de Navarra - Facultad de Ciencias.

Ecología II (F.Ciencias) . 
Universidad de Navarra - Facultad de Ciencias.

Métodos cuantitativos en Biología evolutiva (MC2). 
Universidad de Navarra - Facultad de Ciencias.