Nuestros investigadores

María Lourdes Moraza Zorrilla

. Universidad de Navarra
Líneas de investigación
Äcaros edaficos como indicadores de alteraciones; acarología agrícola y forestal;biología y ecología; taxonomía y sistemática.
Índice H
11, (Scopus, 01/03/2021)
11, (WoS, 01/03/2021)

Publicaciones científicas más recientes (desde 2010)

Autores: Arribas, P., (Autor de correspondencia); Andujar, C.; Moraza Zorrilla, María Lourdes; et al.
ISSN 0737-4038  Vol. 37  Nº 3  2020  págs. 683 - 694
High-throughput DNA methods hold great promise for phylogenetic analysis of lineages that are difficult to study with conventional molecular and morphological approaches. The mites (Acari), and in particular the highly diverse soil-dwelling lineages, are among the least known branches of the metazoan Tree-of-Life. We extracted numerous minute mites from soils in an area of mixed forest and grassland in southern Iberia. Selected specimens representing the full morphological diversity were shotgun sequenced in bulk, followed by genome assembly of short reads from the mixture, which produced >100 mitochondrial genomes representing diverse acarine lineages. Phylogenetic analyses in combination with taxonomically limited mitogenomes available publicly resulted in plausible trees defining basal relationships of the Acari. Several critical nodes were supported by ancestral-state reconstructions of mitochondrial gene rearrangements. Molecular calibration placed the minimum age for the common ancestor of the superorder Acariformes, which includes most soil-dwelling mites, to the Cambrian-Ordovician (likely within 455-552 Ma), whereas the origin of the superorder Parasitiformes was placed later in the Carboniferous-Permian. Most family-level taxa within the Acariformes were dated to the Jurassic and Triassic.
Autores: Kort, I. B.; Moraza Zorrilla, María Lourdes; Attia, S.; et al.
ISSN 1336-9563  Vol. 75  2020  págs. 2261 - 2270
Thrips are major economic insect pests of citrus worldwide. During the few last years these insects have become serious pests of citrus in Tunisia. The objective of this study was to determine the species of thrips' natural enemies occurring in citrus orchards and assess the effects of manure application on the abundance of soil predatory mites. Sampling of thrips and their natural enemies was performed in citrus orchards in northern Tunisia from 2015 to 2017. Results revealed that (i) the most abundant predatory species found on plant leaves was Chrysoperla carnea representing 40.38% of the total number of natural enemies collected, followed by Coccinella septempunctata (13.57%) and that (ii) the most abundant soil predatory mite was Parasitus americanus representing 43.44% of the total number of predatory mites collected, followed by Stratiolaelaps scimitus, Pachylaelaps imitans and Odontoscirus sp. (9.43%, 6.45% and 5.41%, respectively). Higher population densities of P. americanus and S. scimitus in the soil were directly correlated with decreased thrips' abundance and reduced plant damage. Our findings suggest that manure application significantly affects the abundance of both predatory mites and thrips in the soil. Here we provide first knowledge on natural enemies' action against thrips and their potential use as biocontrol agents in Tunisian citrus orchards.
Autores: Meloni, F., (Autor de correspondencia); Civieta, B. F.; Zaragoza, J. A.; et al.
Revista: INSECTS
ISSN 2075-4450  Vol. 11  Nº 1  2020  págs. 59
The ecological functioning of dryland ecosystems is closely related to the spatial pattern of the vegetation, which is typically structured in patches. Ground arthropods mediate key soil functions and ecological processes, yet little is known about the influence of dryland vegetation pattern on their abundance and diversity. Here, we investigate how patch size and cover, and distance between patches relate to the abundance and diversity of meso-and microarthropods in semi-arid steppes. We found that species richness and abundance of ground arthropods exponentially increase with vegetation cover, patch size, and patch closeness. The communities under vegetation patches mainly respond to patch size, while the communities in the bare-soil interpatches are mostly controlled by the average distance between patches, independently of the concurrent changes in vegetation cover. Large patches seem to play a critical role as reserve and source of ground arthropod diversity. Our results suggest that decreasing vegetation cover and/or changes in vegetation pattern towards small and over-dispersed vegetation patches can fast lead to a significant loss of ground arthropods diversity in drylands.
Autores: Moraza Zorrilla, María Lourdes (Autor de correspondencia)
Revista: ZOOTAXA
ISSN 1175-5326  Vol. 4717  Nº 1  2019  págs. 7 - 29
Uroseius sorrentinus is redescribed based on nymphal instars and adults of both sexes from a cave in Southern Spain. New observations of the ontogeny of setae, glands and lyrifissures on the idiosoma and legs are provided, allowing for the clarification and expansion of the diagnostic characters of the genus Uroseius. The female of this species is distinguished from other Uroseius species by its: rounded idiosoma, with prominent anteriorly knobbed vertex; medial dorsal shield with approximately 26 pairs of short, brush-like setae; pigmented soft cuticle at posterior margin of dorsal shield with one pair of long setae; genital shield with spine-like anterior process with anterior half covered by soft sternal cuticle; and 15-20 pairs of feathered ventral setae of heterogeneous length. Males are distinguished by their: femora, genu and tibia with seta av modified as spurs; and tarsus II with two enlarged, spine-like setae. Deutonymphs are distinguished by their: dorsal shield not covering vertical and dorsolateral regions; presternal transverse sclerite present; sternal shield entire; sternal region with three pairs of conspicuous gland openings: and ventrianal shield with 8-10 pairs of setae. A key to the species of deutonymphs of Uroseius is given.
Autores: Moraza Zorrilla, María Lourdes (Autor de correspondencia)
ISSN 0044-586X  Vol. 59  Nº 3  2019  págs. 374 - 382
A new species, Reticulolaelaps caditanus n. sp., is described based on adult females found in an oothecal cell of Mantis religiosa. The species has several morphological characteristics, including the presence of presternal shields, endopodal III-IV widely connected with sternal shield, 50 pairs of dorsal setae and at least 11 setae "x", curly and barbed, and thin and smooth ventral setae including six pairs of setae on the genitoventral shield. A revised diagnosis of the genus with the addition of new characters and a key to the world species of the genus are provided.
Autores: Pérez Martínez, Sandra; Moraza Zorrilla, María Lourdes; Saloña-Bordas, M. I.;
Revista: INSECTS
ISSN 2075-4450  Vol. 10  Nº 5  2019  págs. 1 - 12
Mites should not be overlooked as a forensic tool, as many are commonly associated with decomposing animal matter and are closely associated with specific insect carriers and habitats. It is necessary to increase our understanding of the diversity of mites that are found in human and animal remains, their geographical distribution, and their population dynamics. This work is the first study of the role of mites in forensic science in the Mediterranean region of Navarra (northern Spain). Samples were taken using three types of traps (96 modified McPhail, 96 modified pitfall, and 32 carrion on surface) baited with pig carrion during the period between 11 April and 24 June, 2017. Insects were collected in 100% of the traps and only 27% of them contained mites. Information on 26 species of mites belonging to seven families, their ontogenetic phoretic stage/s, their abundance, and presence/absence during the spring season of the study is given. The most abundant species collected were Macrocheles merdarius, Poecilochirus austroasiaticus, and Poecilochirus subterraneus. We are contributing 16 new records for the Iberian Peninsula: seven species of Parasitidae, three species of Macrochelidae, four species of Eviphididae, one species of Halolaelapidae, and one species of Laelapidae.
Autores: Young, M.R. (Autor de correspondencia); Moraza Zorrilla, María Lourdes; Ueckermann, E.; et al.
ISSN 2045-2322  Vol. 9  Nº 5784  2019  págs. 1 - 8
Because of its ability to expedite specimen identification and species delineation, the barcode index number (BIN) system presents a powerful tool to characterize hyperdiverse invertebrate groups such as the Acari (mites). However, the congruence between BINs and morphologically recognized species has seen limited testing in this taxon. We therefore apply this method towards the development of a barcode reference library for soil, poultry litter, and nest dwelling mites in the Western Palearctic. Through analysis of over 600 specimens, we provide DNA barcode coverage for 35 described species and 70 molecular taxonomic units (BINs). Nearly 80% of the species were accurately identified through this method, but just 60% perfectly matched (1:1) with BINs. High intraspecific divergences were found in 34% of the species examined and likely reflect cryptic diversity, highlighting the need for revision in these taxa. These findings provide a valuable resource for integrative pest management, but also highlight the importance of integrating morphological and molecular methods for fine-scale taxonomic resolution in poorly-known invertebrate lineages.
Autores: Moraza Zorrilla, María Lourdes; Pérez Martínez, Sandra
ISSN 1362-1971  Vol. 24  Nº 5  2019  págs. 929 - 944
Description of a new species of Uroseius Berlese based on deutonymph and female specimens from northern Spain is presented. Observations of some cuticular organs on idiosoma and legs are described for the first time for the genus. An attempt to notate idiosomal setae as in Gamasina mesostigmatid mites is made based on complete dorsal chaetome of larval and pronymphal instars of Uroseius and Apionoseius Berlese species. Uroseius acuminatus (C.L. Koch) is a new record for the Iberian Peninsula. General morphological and biological aspects of Uroseius are presented. A tentative key, provided for separation of the 15 deutonymphs and nine adult females of the world species of Uroseius, is given.
Autores: Lindquist, E. E., (Autor de correspondencia); Moraza Zorrilla, María Lourdes
ISSN 1362-1971  Vol. 23  Nº 10  2018  págs. 1986 - 2021
The genus Leioseius Berlese is reviewed, faunistically in North America, and taxonomically, world-wide. Descriptions of two new species, redescriptions of two previously recorded species, and first records of Leioseius elongatus Evans in North America are presented. Observations indicate that various leg setal and pretarsal attributes are useful in taxonomic discrimination of species in this genus. A key to North American species based on both idiosomatic and leg setal aspects is presented. Four species previously described under the genus Iphidozercon Berlese are accounted for the first time as species of Leioseius, and other taxa described previously as four yet other species of Leioseius are transferred to other genera. A tentative key, provided for separation of females of the 22 recognizable world Leioseius species, accounts for these changes. General morphological notes about mites of this genus are presented, some of which may lead to recognition of species-groups. Scant, general biological aspects about Leioseius mites are presented.
Autores: Belaam-Kort, I. (Autor de correspondencia); Moraza Zorrilla, María Lourdes; Boulahia- Kheder, S.
ISSN 2349-6800  Vol. 6  Nº 3  2018  págs. 1461 - 1466
An inventory of soil mites from citrus orchards was carried out in four localities situated in the regions of Mornag and Bizerte, northern Tunisia. The soil sampling was performed monthly under the canopy throughout the two years of the study (2016 and 2017). A total of 31 species of mites belonging to 20 families were identified. The acari fauna was predominantly composed of Oribatida followed by Mesostigmata mites. The most frequent and abundant Oribatida families were Oribatulidae and Phenopelopidae, while Parasitidae, Laelapidae and Pachylaelapidae were the predominant families of Mesostigmata.
Autores: Moraza Zorrilla, María Lourdes (Autor de correspondencia); Lindquist, E. E.;
ISSN 0044-586X  Vol. 58  Nº 1  2018  págs. 62 - 98
A new species-group of Lasioseius is described from adults and immatures of four newly described and one undescribed species associated with hispine beetles of the genera Cephaloleia and Chelobasis and other gamasine mites in the furled leaf habitat of Heliconia and related Zingiberales plants. The species-group presents a suite of apomorphic attributes placing it in the subgenus L. (Lasioseius). Adults and immatures were found moving freely on and off the beetles when the latter were exposed from their habitat. Larviparity is indicated by adult females gravid with fully developed larvae. Limited data suggest considerable host specificity between mites and their beetle hosts, indicating that there may be a vast diversity of these mites associated with hundreds of species of hispine beetles in the Neotropical Region. Keys are provided to currently accepted species-groups of Lasioseius and to the species within the new species-group.
Autores: Barrientos, J. A.; Moya, J.; García-Sarrión, R.; et al.
ISSN 1576-9518  Vol. 30  2017  págs. 107 - 138
Se ofrecen los datos obtenidos en el III Aracnoblitz-GIA, desarrollado durante las XV Jornadas GIA en marzo de 2015. Se han analizado todos los grupos de Arachnida (Scorpiones, Pseudoscorpiones, Opiliones, Acari y Araneae), de modo que el estudio ofrece una primera imagen aracnológica conjunta de algunas zonas del Parque Natural de Cabo de Gata-Níjar. Como consecuencia del estudio, se ofrece la descripción de varias especies nuevas: dos araneidos (Ero laeta sp. n. y Drassodes gia sp. n.) y dos opiliones (Dasylobus metatarsalis sp. n. y Phalangium andalusicum sp. n.). Se destacan, por otro lado, algunas especies poco citadas o mal conocidas desde la perspectiva taxonómica de la fauna ibérica y se hace un análisis preliminar sobre las comunidades de arañas de las dos zonas principales de estudio, así como de su asociación a las especies vegetales arbustivas.
Autores: Roy, L.; El Adouzi, M.; Moraza Zorrilla, María Lourdes; et al.
ISSN 1049-9644  Vol. 114  2017  págs. 176 - 194
The poultry red mite (PRM), Dermanyssus gallinae (de Geer), is a hematophagous mite of economic importance in the poultry industry. Because PRM lives off-host in habitats potentially shared by many micropredators, biocontrol agents have potential to regulate this pest in poultry buildings. The present pilot study was conducted to obtain a first insight into predatory and parasitic arthropod communities that naturally occur on layer farms in France. Species composition and sensitivity to insecticides were determined to estimate the feasibility of conservation biological control (CBC) of PRM based on a 2-scale concept (regional and local effects). A morpho-molecular approach was used to characterize the taxonomic composition of manure-dwelling arthropod communities, with a focus on mesostigmatid mites, that naturally occur in free-range layer farms. Additionally, the sensitivity of some dominant mite species to a common insecticide (deltamethrin) was measured via bioassays. The putative roles of recorded taxa within ecological guilds and their dispersal habits are discussed based on the results of multivariate and univariate analyses. Local and regional factors had significant effects on both high-level taxonomic arthropod groups and mesostigmatid morphospecies. In addition to documenting the occurrence and apparent establishment of highly mobile arthropods in hen houses, these results are considered promising for the development of CBC against PRM. ...
Autores: Moraza Zorrilla, María Lourdes; Hernández Minguillón, María Ángeles
ISSN 1576-9518  Vol. 28  2016  págs. 35 - 44
In the last decades, afforestation with no native species has been a common practice in Europe. In the particular case of Spain, the effects of plantations, using exotic tree species as larch or non-native pine in native oak and beech forests on the communities of oribatid mites, springtails, and nematodes have been studied, however little is known of their influence on Mesostigmata mites. In the current study we examined the mesostigmatid mite communities in two Japenese larch plantations (Larix kaempferi (Lamb.) Carr. and oak forest (Quercus pyrenaica Wild) to compare the mite assemblages and to determine if tree species replacements would affect soil Mesostigmata populations. A total of 2752 mites belonging to 56 species of 17 families were collected. There were differences in the diversity and species composition of the assemblages. A total of 13 species are new cites for the Iberian Peninsula: Gamasellodes bicolor, Geholaspis longispinosus, Geholaspis mandibularis, Pseudoparasitus dentatus, Pachyseius angustiventris, Holoparasitus obsoloni, Paragamasus disparinas, Paragamasus longisetosus, Amblyseius filixis, Veigaia bouvieri, Discourella baloghi, Trachytes eustructura, and Urodiaspis tecta.
Autores: Moraza Zorrilla, María Lourdes; Sanchéz, I.
ISSN 1576-9518  Vol. 29  2016  págs. 57 - 60
Mites associated with oothecal cells of Mantis religiose (L.) and Iris oratoria (L.) have been identified based on specimens extracted from oothecae collected in southern Spain. A total of 36 species of Acari have been identified, 16 of them constituting first records for the Iberian Peninsula.
Autores: Moraza Zorrilla, María Lourdes; Lindquist, E. E.;
ISSN 1362-1971  Vol. 21  Nº 1  2016  págs. 85 - 118
Four new species of mites of the genus Hispiniphis are described, all among those upon which the original description of the genus was based, associated with beetles of different species of the hispine genus Cephaloleia. A key is given to the described species of Hispiniphis and Makarovaia, the known two genera whose adults and immatures are found under the elytra of rolled-leaf hispine beetles. Aspects of ontogenetic acceleration and duplication of some idiosomatic setae are discussed. Evidence of larviparity, along with problematical differences between small dimensions of the adult female genital area and a relatively large larva, are considered. An evolutionary trend towards smaller body sizes among these mites is discussed. Further evidence of host preferences by these mites is presented, along with indications that there may be a vast diversity of these mites associated with hispine beetles in the Neotropical Region.
Autores: Moraza Zorrilla, María Lourdes; Kontschán, J.; Sahoo, G.; et al.
ISSN 0044-586X  Vol. 56  Nº 1  2016  págs. 73 - 89
A new species of Eutrachytes (Eutrachytes flagellatus) is described based on a complete ontogenetic series, starting from larva and including the adult female and male. This Uropodina mite was isolated from the pneumatophore surface of Avicennia officinalis having algal (Bostryschia sp.) growth in Goa, India. Notable morphological attributes peculiar to immature instars of this species include a flagellate tubular dorsolateral respiratory structure extending from the peritreme, nude pygidial shields in the adult male and female and a deep concave formation at the posterolateral margins of the dorsal shield. A taxonomic discussion with salient diagnostic features of the genus is given and a key to genera of the family is presented. We present two nomenclature modifications: Deraiophoridae syn. nov. as the junior synonym of Eutrachytidae and Dentibaiulus Hirschmann, 1979 syn. nov. as a junior synonym of Eutrachytes Berlese, 1914. A compiled list of all new species discovered to date from mangrove roots in different parts of the world is given
Autores: Lindquist, E. E.; Moraza Zorrilla, María Lourdes
ISSN 0044-586X  Vol. 56  Nº 3  2016  págs. 293 - 319
The genus Calyptoseius gen. nov. of the subfamily Platyseiinae Evans is described, based on adults and nymphs of one newly described species associated with ants of the genus Azteca occupying hollow stems of Cecropia in lowland rainforests of Costa Rica. Several unusual morphological attributes are noted, particularly the autapomorphic presence of four elongated setae on each of telotarsi II to IV. Some perspectives of these mites in the Cecropia-Azteca association are discussed, including a possible dispersal link via nematoceran flies to gain access to such an unusual habitat. The definition of the previously monobasic genus Cheiroseiulus is augmented, and also modified in view of an undescribed species at hand, and the subfamily definition is modified to account for morphological aspects of the new genus. A key to the genera of the Platyseiinae is given.
Autores: Moraza Zorrilla, María Lourdes; Lindquist, E. E.;
Revista: ZOOTAXA
ISSN 1175-5326  Vol. 3931  Nº 3  2015  págs. 301 - 351
wo new genera Makarovaia and Hispiniphis are described from adults and immatures of newly described species associated with hispine beetles of the genera Chelobasis and Cephaloleia, respectively, occupying unfurled leaves of Heliconia in lowland rainforest of Costa Rica. The new genera share a suite of unique morphological attributes, but are tentatively assigned to the family Melicharidae. While all instars of the mites can be found under the elytra of their adult beetle hosts, adult mites also move freely on and off the beetles. A new form of laboulbeniaceous fungus of the genus Rickia is frequently associated with adult mites of Makarovaia as well as their beetle hosts, yet evidently rarely with mites of a species of Hispiniphis or its beetle hosts which may co-occupy the same host leaves. Limited data suggest considerable host specificity between mites and their beetle hosts. Whether the association of these mites with hispine beetles may be ancient, prior to the beetles' adaptation to living in unfurled leaves of host plants, or is a more recent invasion and partitioning of the rolled leaf beetle fauna, is discussed.
Autores: Moraza Zorrilla, María Lourdes; Balanzategui, I.;
Título: Orden Mesostigmata
ISSN 2386-7183  Nº 12  2015  págs. 1 - 16
Autores: Queralt Azcona, Mikel; Moraza Zorrilla, María Lourdes; de Miguel Velasco, Ana María
ISSN 2171-5068  Vol. 23  Nº 2  2014  págs. 339 - 348
Aims of the study: The goals of this paper are to provide preliminary data on the composition of the mite community in truffle-producing soils (both wild and plantations); and to elucidate those species which may interact with the black truffle life cycle. Area of study: The study was carried out in two black truffle productive zones in Navarra (Spain), in four different plantations and five wild production areas. Material and Methods: Fauna was extracted using Berlese Tullgren funnels. Animals were separated into taxonomic groups, and mites were identified. To analyse the composition and community structure of the different habitats, parameters such as abundance, species richness, and Shanon Weiner diversity index (H¿) were calculated. Main results: A total of 305 mites were recognized, belonging to 58 species representing the three major taxonomic groups (Oribatida, Prostigmata, Mesostigmata). Research highlights: The results show a possible trend towards wild areas having greater diversity and species richness than plantations. Furthermore, community analysis shows differences in species compositions among different study areas, and oribatid mites always exhibit the highest relative abundance and species richness.
Autores: Lindquist, E. E.; Moraza Zorrilla, María Lourdes
ISSN 0022-2933  Vol. 48  Nº 27-28  2014  págs. 1611 - 1651
The genus Antennocheles gen. nov. is based on adults and nymphs of two newly described species associated with hispine beetles of the genera Chelobasis and Cephaloleia occupying unfurled leaves of Heliconia in lowland rainforest of Costa Rica. Within the superfamily Ascoidea, this taxon is so distinctive morphologically and behaviourally as to justify its own family, Antennochelidae, fam. nov. These mites bear remarkably elongated cheliceral shafts, which may extend for lengths greater than the body but are fully ensheathed in repose within the body. Other unique attributes include linear arrangement of hypostomatic setae, a pore-like structure beside the corniculus, and adults with a pair of unique sternal invaginations for enlarged muscle insertions. While undergoing their life history in water films of unfurled host leaves, the mites exhibit a slow, swimming-like behaviour in quest for prey. As leaves unfurl, adult mites run quickly off and on their hispine beetle phoronts for dispersal.
Autores: Moraza Zorrilla, María Lourdes; Fernández, M.; Jurc, M.;
ISSN 0164-7954  Vol. 39  Nº 8  2013  págs. 597 - 599
In September 2009, specimens ofIps sexdentatuswere captured using black cross vane traps in an old stand ofPinus halepensisMiller at Dekani in the submediterranean ecological region of Slovenia. Twenty-four per cent of them carried phoretic mites, and six taxa of mites were collected directly from their bodies:Cercoleipus coelonotus, Dendrolaelaps quadrisetus,Histiostoma ovalis,Trichouropoda polytricha,Uroobovella variansandVulgarogamasus lyriformis.All of these species are documented here for the first time as associated with the six-spined engraver beetle in Slovenia. BothD. quadrisetusandV. lyriformisare predatory on bark beetle eggs and larvae and could be useful in biological control programmes. Moreover,H. ovalismay be an important vector of fungal spores of ophiostomatoid pathogenic fungi.
Autores: Fernández, M.; Díez, J.; Moraza Zorrilla, María Lourdes
Revista: Scandinavian Journal of Forest Research
ISSN 0282-7581  Vol. 28  Nº 4  2013  págs. 352 - 362
The acarofauna associated with Ips sexdentatus in León (NW Spain) was identified. Mites were collected directly from the bodies of the I. sexdentatus specimens and also from barks samples of Pinus pinaster including breeding galleries, with the aid of Berlese-Tullgren funnels. Ten taxa belonging to nine different families were collected; of these, eight species are first records for Spain. Three species may be of potential use in biological pest control: Dendrolaelaps quadrisetus, Ereynetes scutulis and Vulgarogamasus lyriformis. Moreover, Histiostoma ovalis may be an important vector of fungal spores.
Autores: Kazemi, S.; Moraza Zorrilla, María Lourdes
ISSN 2251-8169  Vol. 2  Nº 2  2013  págs. 217 - 234
Three species of mites in the subgenus Antennoseius (Antennoseius) Berlese, 1916 associated with ground beetles (Coleoptera, Carabidae) are reported for the first time from Iran: A. (A.) longisetus Eidelberg, A. (A.) sabulicola Bregetova and A. (A.) sharonovi Eidelberg. These species and A. (A.) masoviae Sellnick, are diagnosed in detail. Idiosomal poroidotaxy and adenotaxy for the subgenus are illustrated. A. (A.) vysotskajae Sklyar is considered as junior synonym of A. (A.) sharonovi. A key to Iranian species of the genus is presented.
Autores: Navarro-Campos, C.; Pekas, A.; Moraza Zorrilla, María Lourdes; et al.
ISSN 1049-9644  Vol. 63  Nº 2  2012  págs. 201 - 209
Free-living predatory mites are one of the most abundant and species-rich group of arthropods in the soil, with a great potential for pest control. In the present study we examined the predatory mite fauna in the soil of citrus orchards in order to evaluate their potential as natural enemies of thrips pests and especially of Pezothrips kellyanus (Bagnall) (Thysanoptera: Thripidae). Moreover, two trials were conducted to assess if foliar sprays of the insecticide chlorpyrifos or the addition of organic matter to the soil affect the abundance of soil predatory mites. Soil samples were regularly taken from four citrus orchards in Valencia (Spain) from December 2008 to April 2010. Thrips and predatory mites were extracted using Berlese funnels. The thrips fauna in the soil was dominated by P. kellyanus, which accounted for 80% of the specimens registered. With respect to predatory mites, 15 species from eight families were identified. The most abundant were Parasitus americanus (Parasitidae), Gaeolaelaps aculeifer (Hypoaspis aculeifer), Gaeolaelaps praesternalis and Gaeolaelaps sp. (Laelapidae). Neomolgus sp. (Bdellidae), Pachylaelaps islandicus (Pachylaelapidae). Neogamasus sp. (Parasitidae) and Macrocheles scutatiformis (Macrochelidae). Higher populations of G. aculeifer were associated with lower abundance and fruit damage caused by P. kellyanus whereas the opposite trend was found for P. americanus. Treatment with Chlorpyrifos did not affect the abundance of soil predatory mites whereas significantly more mites were found in the experimental plots where composting manure was added.
Autores: Santamaría Ulecia, Jesús Miguel; Moraza Zorrilla, María Lourdes; Elustondo Valencia, David; et al.
ISSN 1582-9596  Vol. 11  Nº 6  2012  págs. 1159 - 1169
Mites and springtails are important members of soil mesofauna and have been proven to be good bioindicators of airborne pollutants. We studied the surrounding area of a steel mill located in a mountain valley of North Spain. Previous studies had documented the existence of a pollution gradient in this area due to the emissions of the factory, thus providing an interesting site to investigate the potential effects of pollutants (heavy metals and nitrogen) on soil biodiversity. The density of Acari and Collembola significantly decreased with the increase in concentration of Cr, Mn, Zn, Cd and Pb. Mites appeared to be more sensitive to heavy metal pollution than springtails. Likewise, the density of these microarthropoda was lower in those soils exhibiting higher nitrogen content. The species composition of the community of Acari and Collembola changed according to heavy metal pollution. Significant differences in abundance, species richness and diversity were observed between the communities of the sampling sites. Some species were exclusive of the less polluted sites, while other appeared in the most contaminated ones. This different response of soil mesofauna to pollutants suggests that some mite or springtail species could be used as bioindicators of heavy metal pollution.
Autores: Lindquist, E.E.; Moraza Zorrilla, María Lourdes
ISSN 0370-4327  Vol. 95  2012  págs. 9 - 19
The genus Discoseius gen. nov. is described, based on adult females of one newly described species collected from one sample of bracket fungi in Costa Rica. These ovoid mites bear a pair of large, pliable, disclike structures of unknown function, which flank a ventrianal shield that is strangely formed to accommodate the discs ventrally on the opisthosoma. Such uniquely formed structures have been found otherwise only in females of the monobasic eviphidid genus Canestriniphis, from specimens phoretic on erotylid beetles that live in bracket fungi As female Discoseius are endowed with a sperm access system of the more derivative phytoseioid-type, while female Canestriniphis retain the sperm access system of the plesiomorphic laelapoid-type, this similarity is thought to be convergent. An updated key to the world genera of the subfamily Blattisociinae is presented to accommodate this and another recently proposed genus.
Autores: Moraza Zorrilla, María Lourdes; Kazemi, S.;
ISSN 0164-7954  Vol. 38  Nº 1  2012  págs. 6-17
A new species, Julolaelaps tritosternalis, of the family Laelapidae is described based on adult females and males of one new species from Northern Iran. These mites live associated with Ommatoiulus caspius (Lohmander) (Diplopoda, Julidae). Several morphological characteristics are noted, including the presence of a ventral disc-like structure on the tritosternal base, sternal shield with anteromedial convex protuberance, lack of setae z1, z3, z6, S1 and all deutonymphal setae r, convex alveolar protuberances for setae st1-st5, lack of setae v-2 on genu I and male with hypertrophied dentate movable cheliceral digit. A key to species of Julolaelaps is provided.
Autores: Moraza Zorrilla, María Lourdes; Lindquist, E.E.
Revista: Zootaxa (Print Edition)
ISSN 1175-5326  Nº 2758  2011  págs. 1 - 25
Autores: Arroyo, J.; Moraza Zorrilla, María Lourdes; Bolger, T.
ISSN 0367-5041  Vol. 66  Nº 1  2010  págs. 29 - 37
The main aim of this study was to examine the communities of mesostigmatid mites occurring in Irish Sitka spruce (Picea sitchensis) canopies or inhabiting moss, either in the canopy or on the soil surface, and to discover whether a characteristic assemblage of species occurs in particular habitat patches (ground vs. aerial). Twenty two species of Mesostigmata were recorded, of which five occurred exclusively in arboreal microhabitats. All three species of Zerconidae collected were unique to the canopy and moss mats on the tree branches. Trachytes aegrota (C.L. Koch, 1841) was recorded for the first time in Ireland and some comments about its distribution are made. Multivariate analysis indicated that the arboreal mesostigmatid community is not just a subset of the assemblage occurring in moss on soil or trunks and that it appears to be more homogeneous than those occurring on the soil surface.
Autores: Saloña, M.I.; Moraza Zorrilla, María Lourdes; Carles-Tolrá, M.; et al.
ISSN 0022-1198  Vol. 55  Nº 6  2010  págs. 1652 - 1655
Autores: Lindquist, E.E.; Moraza Zorrilla, María Lourdes
Revista: Zootaxa (Print Edition)
ISSN 1175-5326  Nº 2479  2010  págs. 1 - 21
Autores: Moraza Zorrilla, María Lourdes
Libro:  Trends in Acarology : Proceedings of the 12th International Congress of Acarology, Amsterdam 2006
2010  págs. 129 - 133
The effect of reforestation of Pinus nigra and Pinus halepensis in central and southern Navarra (northern Spain) on mesostigmatic mite communities inhabiting the soil was studied, and seasonal fluctuation of mite populations over 1 year of sampling. Reforestation causes a clear change in species richness of the community (71-72% drop) and a significant decrease of mite abundance (31-50% loss). There are no significant differences in overall Shannon¿s diversity (H) and evenness (J) when the Mediterranean shrub (H = 2.92, J = 0.66) is replaced by a pine forest (H = 2.73, J = 0.72). However, H and J significantly increased when a pine forest (H = 3.34, J = 0.84) substitutes the natural oak forest (H = 2.80, J = 0.63). Summer is the critical, unfavorable season for Mesostigmata of this region in terms of their abundance and community diversity.
Autores: Baquero Martín, Enrique; Moraza Zorrilla, María Lourdes; Ariño Plana, Arturo; et al.



Técnicas experimentales en laboratorio de Biología (MC2). 
Universidad de Navarra - Facultad de Ciencias.

Anatomía animal (F.Ciencias). 
Universidad de Navarra - Facultad de Ciencias.

Evolución biológica (F.Ciencias). 
Universidad de Navarra - Facultad de Ciencias.

Fundamentos de Biología (F. Ciencias). 
Universidad de Navarra - Facultad de Ciencias.

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