44 research outputs found

    Cricket community acoustics: a new tool to detect invasive ants.

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    Relatório curricular de mestrado (Análises Clínicas), apresentado á Faculdade de Farmácia da Universidade de CoimbraO presente trabalho apresenta as atividades desenvolvidas no âmbito do estágio curricular, inserido no Mestrado em Análises Clínicas da Faculdade de Farmácia da Universidade de Coimbra. O referido estágio realizou-se no Laboratório de Análises Clínicas do Centro de Saúde Militar de Coimbra, de Dezembro de 2014 a Maio de 2015, sob a orientação do Dr. Mário João Roque. Neste relatório serão apresentados os métodos usados na execução das análises, a sua importância clínica, a organização diária e o sistema de gestão de qualidade implementado no laboratório. Serão desenvolvidos de modo mais detalhado os sectores de hematologia e bioquímicaThe present work exposes the activities developed in the internship within the context, of the Master´s degree of Clinical Analysis, of the Faculty of Pharmacy, University of Coimbra. The training was performed at the Clinical Analysis Laboratory of Centro de Saúde Militar of Coimbra, from December to May 2015, under the supervision of Dr. Mario João Roque. In this report will be present the methods used in the execution of laboratorial assays, the clinical interest of the laboratory test, the daily organization and quality management system implemented in the laboratory. This report presents a more detailed description of the hematology and biochemistry sector

    Integrative taxonomy of New Caledonian beetles: species delimitation and definition of the [i]Uloma isoceroides[/i] species group (Coleoptera, Tenebrionidae, Ulomini), with the description of four new species

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    New Caledonia is an important biodiversity hotspot with much undocumented biodiversity, especially in many insect groups. Here we used an integrative approach to explore species diversity in the tenebrionid genus Uloma (Coleoptera, Tenebrionidae, Ulomini), which encompasses about 150 species, of which 22 are known from New Caledonia. To do so, we focused on a morphologically homogeneous group by comparing museum specimens with material collected during several recent field trips. We also conducted molecular phylogenetic analyses based on a concatenated matrix of four mitochondrial and three nuclear genes for 46 specimens. The morphological study allowed us to discover and describe four new species that belong to the group of interest, the Uloma isoceroides group. Molecular analyses confirmed the species boundaries of several of the previously described species and established the validity of the four new species. The phylogenetic analyses also provided additional information on the evolutionary history of the group, highlighting that a species that was thought to be unrelated to the group was in fact a member of the same evolutionary lineage. Molecular species delimitation confirmed the status of the sampled species of the group and also suggested some hidden (cryptic) biodiversity for at least two species of the group. Altogether this integrative taxonomic approach has allowed us to better define the boundaries of the Uloma isoceroides species group, which comprises at least 10 species: Uloma isoceroides (Fauvel, 1904), Uloma opacipennis (Fauvel, 1904), Uloma caledonica Kaszab, 1982, Uloma paniei Kaszab, 1982, Uloma monteithi Kaszab, 1986, Uloma robusta Kaszab, 1986, Uloma clamensae sp. n., Uloma condaminei sp. n., Uloma jourdani sp. n., and Uloma kergoati sp. n. We advocate more studies on other New Caledonian groups, as we expect that much undocumented biodiversity can be unveiled through the use of similar approache

    Assessment of Glue traps in subtropical maquis shrubland :Applications for the study of the new caledonian leopArd skink (Lacertoides pardalis)

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    Among the endemic skinks of New Caledonia, the Leopard Skink is one of the species best adapted to Maquis shrublands on ultramafic surfaces. These habitats, particularly those exposed to mining activities and bushfires, are regularly surveyed for herpetofauna; however, capture techniques available for such surveys are limited. Glue traps (GTs) are the most commonly used method, but are criticized for the risk they pose to wildlife. We propose here an evaluation through a review of research conducted on the Leopard Skink. We evaluate, for the first time, the efficiency of baiting GTs with canned fruits. We also test two alternative techniques: artificial refuges and funnel traps. Their very low capture rates lead us to favour the use of GTs. The use of fruit baiting allows on average to double the daily catches of Leopard Skinks. Mortality may be reduced by installing traps under cover and frequent checks. Glue traps are currently the most effective technique for surveying the herpetofauna of New Caledonian maquis shrublands. However, recaptures are very rare, which limits the prospects for population monitoring using mark-recapture methods. This issue remains a challenge for future conservation measures in these specific habitats facing high levels of threatsParmi les scinques endémiques de Nouvelle-Calédonie, le Scinque-léopard est l’espèce la plus adaptée aux maquis miniers. Ces habitats, particulièrement exposés aux activités minières et aux feux de brousse, sont régulièrement l’objet d’études herpétologiques réglementaires. Pourtant, les techniques de capture disponibles pour ces études sont limitées. Les pièges collants sont les plus utilisés, mais sont critiqués pour le risque qu’ils font courir à la faune. Nous en proposons ici une évaluation à travers la synthèse des études dédiées au Scinque-léopard.Nous avons évalué pour la première fois l’efficacité de l’appâtage des pièges collants avec des fruits au sirop. Nous avons également testé deux techniques alternatives: les abris artificiels et les nasses. Leurs taux de capture très faibles sont rédibitoires, ce qui nous a conduit à privilégier l’utilisation des pièges collants. L’utilisation d’appâts permet en moyenne de doubler les captures journalières de scinque-léopard. L’adoption de bonnes pratiques (installation des pièges sous abri, relèves fréquentes) permet de limiter les taux de mortalité. Les pièges collants restent donc à l’heure actuelle la technique la plus efficace pour inventorier l’herpétofaune des maquis miniers de Nouvelle-Calédonie; toutefois, les recaptures sont très rares, ce qui limite les perspectives pour un indice d’abondance robuste dans une optique de suivi des populations en maquis minie

    Programme Rmines. Impact des espèces invasives sur les communautés de reptiles des massifs miniers. Rapport scientifique final

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    - Le programme de recherche « Rmines, impacts des espèces invasives sur les reptiles des massifs miniers, application à la conservation durable d’un patrimoine faunistique exceptionnel et menacé » a étudié comment les espèces invasives terrestres, dont les activités minières favorisent directement et indirectement la présence et la diffusion au sein des massifs exploités, impactent la faune reptilienne, un des éléments les plus patrimoniaux de la biodiversité terrestre néo-calédonienne. - Le programme scientifique a concerné les interactions entre les reptiles patrimoniaux des milieux ultramafiques et 3 groupes d’espèces invasives majeures : les chats harets (prédateurs supérieurs), les rongeurs du genre Rattus (prédateurs intermédiaires, voire compétiteurs alimentaires), et des espèces de fourmis invasives (compétiteurs alimentaires, voire prédateurs).- Les travaux ont permis la constitution d’une collection de référence et la publication d’une « Clé d’identification illustrée des écailles de scinques de Nouvelle-Calédonie »

    La faune des milieux sur roches ultramatiques

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    Crickets of New Caledonia (Insecta, Orthoptera, Grylloidea): a key to genera, with diagnoses of extant genera and descriptions of new taxa

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    Recent spread of the Sida Leafbeetle, Calligrapha pantherina StĂĄl, 1859 (Coleoptera: Chrysomelidae: Chrysomelinae) in New Caledonia

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    We report the recent arrival and subsequent spread of the Sida Leafbeetle, Calligrapha pantherina StĂĄl, 1859, in the archipelago of New Caledonia. The species seems to have a rapid spread as it is now recorded all along the west coast and also have spread to the Loyalty Islands. The first specimen was caught in November 2012. This is a biocontrol agent which was introduced in the Pacific Region against invasive Malvaceae (Sida spp.). This accidental arrival would help to control the alien weed, Sida acuta Burm. f., in New Caledonia. But this establishment raises some questions about potential threats on the two endemic New Caledonian Sida species. We also discuss this arrival and subsequent installation in the context of global change and biosecurity issues, particularly in such a biodiversity hotspot
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