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Conservation genetics in the European Union - Biases, gaps and future directions / SÃlvia Pérez-Espona in Biological conservation, vol. 209 (Mai 2017)
[article]
Titre : Conservation genetics in the European Union - Biases, gaps and future directions Type de document : Livre Auteurs : SÃlvia Pérez-Espona, Auteur ; et al., Auteur Année de publication : 2017 Article en page(s) : pp. 130-136 Langues : Anglais Catégories : [ZG] Europe
[Thèmes] Biologie de la conservationMots-clés : biodiversité politique environnementale gestion espèce menacée génétique Résumé : "The importance of genetic diversity for the assessment and maintenance of biodiversity is widely recognised, although not yet explicitly incorporated into conservation decision making in many European Union Member States. A detailed assessment of 4311 genetic studies relevant for the conservation and management of European species revealed that research is extensive and, therefore, could be more effectively implemented in existing conservation programs. However, research was overly biased towards the study of species with an economic value or iconic status, with research on threatened species or species with undetermined conservation status being scarce. The largest volume of research focused on species identification and relationships, population subdivision and dispersal; with microsatellite and mtDNA sequences as the most widely used markers. These results emphasize the need for further collaboration between researchers and conservation stakeholders to devise genetics research programs that can provide effective solutions for species conservation in Europe." (source : auteurs) Type de publication : périodique Référence biblio : Pérez-Espona S., et al., 2017 - Conservation genetics in the European Union - Biases, gaps and future directions. Biological conservation, 209 : 130-136. ID PMB : 65422 DOI : 10.1016/j.biocon.2017.01.020 Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=65422
in Biological conservation > vol. 209 (Mai 2017) . - pp. 130-136[article]Exemplaires
Cote Localisation Disponibilité aucun exemplaire Conservation social science: Understanding and integrating human dimensions to improve conservation / Nathan Bennett in Biological conservation, vol. 205 (Janvier 2017)
[article]
Titre : Conservation social science: Understanding and integrating human dimensions to improve conservation Type de document : Livre Auteurs : Nathan Bennett (Nathan J.), Auteur ; Robin Roth, Auteur ; Sarah Klain (Sarah C.), Auteur ; Kai Chan, Auteur ; Patrick Christie, Auteur ; Douglas Clark (Douglas A.), Auteur ; Georgina Cullman, Auteur ; Deborah Curran, Auteur ; Trevor Durbin (Trevor J.), Auteur Année de publication : 2017 Article en page(s) : pp. 93-108 Langues : Anglais Catégories : [Thèmes] Biologie de la conservation
[Thèmes] Gestion de l'environnement
[Thèmes] Science de la conservationMots-clés : sciences sociales dimension humaine Résumé : "It has long been claimed that a better understanding of human or social dimensions of environmental issues will improve conservation. The social sciences are one important means through which researchers and practitioners can attain that better understanding. Yet, a lack of awareness of the scope and uncertainty about the purpose of the conservation social sciences impedes the conservation community's effective engagement with the human dimensions. This paper examines the scope and purpose of eighteen subfields of classic, interdisciplinary and applied conservation social sciences and articulates ten distinct contributions that the social sciences can make to understanding and improving conservation. In brief, the conservation social sciences can be valuable to conservation for descriptive, diagnostic, disruptive, reflexive, generative, innovative, or instrumental reasons. This review and supporting materials provides a succinct yet comprehensive reference for conservation scientists and practitioners. We contend that the social sciences can help facilitate conservation policies, actions and outcomes that are more legitimate, salient, robust and effective." (source : auteurs) Type de publication : périodique Référence biblio : Bennett N., Roth R., Klain S., Chan K., Christie P., Clark D., Cullman G., Curran D., Durbin T., 2017 - Conservation social science: Understanding and integrating human dimensions to improve conservation. Biological conservation, 205 : 93-108. ID PMB : 65412 DOI : 10.1016/j.biocon.2016.10.006 Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=65412
in Biological conservation > vol. 205 (Janvier 2017) . - pp. 93-108[article]Exemplaires
Cote Localisation Disponibilité aucun exemplaire Offspring fitness in relation to population size and genetic variation in the rare perennial plant species Gentiana pneumonanthe (Gentianaceae) / ]. Gerard B. Oostermeijer in Oecologia, vol. 97 (Année 1994)
[article]
Titre : Offspring fitness in relation to population size and genetic variation in the rare perennial plant species Gentiana pneumonanthe (Gentianaceae) Type de document : périodique Auteurs : ]. Gerard B. Oostermeijer, Auteur ; M.W. van Eijck, Auteur ; J. C. M. den Nijs, Auteur Année de publication : 1994 Article en page(s) : pp. 289-293 Langues : Anglais Catégories : [Espèces (in biblio)] Gentiana pneumonanthe
[Thèmes] Biologie de la conservation
[Thèmes] Conservation
[Thèmes] Germination des graines
[Thèmes] Plante à forte valeur patrimonialeMots-clés : variation génétique Résumé : "Seeds were sampled from 19 populations of the rare Gentiana pneumonanthe, ranging in size from 5 to more than 50,000 flowering plants. An analysis was made of variation in a number of life-history characters in relation to population size and offspring heterozygosity (based on seven polymorphic isozyme loci). Life-his-tory characters included seed weight, germination rate, proportion of seeds germinating, seedling mortality, seedling weight, adult weight, flower production per plant and proportion of plants flowering per family. Principal component analysis (PCA) reduced the dataset to three main fitness components. The first component was highly correlated with adult weight and flowering performance, the second with germination performance and the third component with seed and seedling weight and seedling mortality. The latter two components were considered as being maternally influenced, since these comprised life-history traits that were significantly correlated with seed weight. Multiple regression analysis showed that variation in the first fitness component was mainly associated with heterozygosity and not with population size, while the third fitness component was only correlated with population size and not with heterozygosity. The latter relationship appeared to be non-linear, which suggests a stronger loss of fitness in the smallest populations. The second (germination) component was neither correlated with population size nor with genetic variation. There was only a weak association between population size, heterozygosity and the population coefficients of variation for each life history character. Most correlation coefficients were negative, however, which suggests that there is more variation among progeny from smaller populations. We conclude that progeny from small populations of Gentiana pneumonanthe show reduced fitness and may be phenotypically more variable. One of the possible causes of the loss of fitness is a combination of unfavourable environmental circumstances for maternal plants in small populations and increased inbreeding. The higher phenotypic variation in small populations may also be a result of inbreeding, which can lead to deviation of individuals from the average phenotype through a loss of developmental stability." (source : auteurs) Type de publication : périodique Référence biblio : Oostermeijer J.-G.-B., van Eijck M.-W., den Nijs J.-C.-M., 1994 - Offspring fitness in relation to population size and genetic variation in the rare perennial plant species Gentiana pneumonanthe (Gentianaceae). Oecologia, 97 : 289-293. ID PMB : 71994 Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=71994
in Oecologia > vol. 97 (Année 1994) . - pp. 289-293[article]Exemplaires
Cote Localisation Disponibilité aucun exemplaire