Biodiversité
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Revue de presse et du net par le Pôle de partage des connaissances S&T de l'Office français de la biodiversité
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Estimating and forecasting spatial population dynamics of apex predators using transnational genetic monitoring - PNAS

Estimating and forecasting spatial population dynamics of apex predators using transnational genetic monitoring - PNAS | Biodiversité | Scoop.it

The ongoing recovery of terrestrial large carnivores in North America and Europe is accompanied by intense controversy. On the one hand, reestablishment of large carnivores entails a recovery of their most important ecological role, predation. On the other hand, societies are struggling to relearn how to live with apex predators that kill livestock, compete for game species, and occasionally injure or kill people. Those responsible for managing these species and mitigating conflict often lack fundamental information due to a long-standing challenge in ecology: How do we draw robust population-level inferences for elusive animals spread over immense areas? Here we showcase the application of an effective tool for spatially explicit tracking and forecasting of wildlife population dynamics at scales that are relevant to management and conservation.

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Auteurs : Richard Bischof, Cyril Milleret, Pierre Dupont, Joseph Chipperfield, Mahdieh Tourani, Andrés Ordiz, Perry de Valpine, Daniel Turek, J. Andrew Royle, Olivier Gimenez, Øystein Flagstad, Mikael Åkesson, Linn Svensson, Henrik Brøseth, Jonas Kindberg

Revue : Proceedings of the National Academy of Sciences Nov 2020, 202011383; DOI: 10.1073/pnas.2011383117

Google traduction du titre de l'article "Estimation et prévision de la dynamique spatiale des populations de grands prédateurs à l'aide de la surveillance génétique transnationale"

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Identifying priority conservation areas for recovering large carnivores using citizen science data

Understanding the processes related to wildlife recoveries is not only essential in solving human - wildlife conflicts, but also for identifying priority conservation areas and in turn, for effective conservation planning. We used data from a large citizen science program to study the spatial processes related to the demographic and genetic recovery of brown bears in Greece and to identify new areas for their conservation. This was achieved by visually comparing our data with an estimation of the past distribution of brown bears in Greece and by using a Point Process Model to model habitat suitability, and then comparing our results with the current distribution of brown bear records and with that of protected areas.

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Auteurs : Anne-Sophie Bonnet-Lebrun, Alexandros Karamanlidis, Miguel de Gabriel Hernando, Ian Renner, Olivier Gimenez

bioRxiv 454603; doi: https://doi.org/10.1101/454603
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Pyrénées : Au moins dix oursons nés cette année, des images rares d’accouplement captées

Pyrénées : Au moins dix oursons nés cette année, des images rares d’accouplement captées | Biodiversité | Scoop.it
Le réseau Ours Brun a donné des nouvelles de la population d’ours dans les Pyrénées
  • Au moins cinq portées, avec 10 oursons au total, ont été recensées cette année dans les Pyrénées.
  • Le réseau Ours Brun a aussi capté les images d’un accouplement, en Ariège.

Pour les partisans comme pour les détracteurs de l’ours des Pyrénées, L’Echo des Tanières est une lecture indispensable. Le dernier numéro de cette publication du réseau Ours Brun (géré par l’Office français de la biodiversité, l’OFB) recense les indices de plantigrades relevés à travers la chaîne. Entre janvier et août 2020, il en décompte 871, collectés entre la vallée d’Aspe (Pyrénées-Atlantiques), à l’ouest, et la vallée de l’Oriège ( Ariège), à l’est.

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Consultez nos dernières publications https://professionnels.ofb.fr/fr/doc/lecho-tanieres

Lettre d'information du réseau Ours brun et videos en accès libre sur le portail technique de l'OFB.

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Regulated hunting re-shapes the life history of brown bears

Regulated hunting re-shapes the life history of brown bears | Biodiversité | Scoop.it
Management of large carnivores is among the most controversial topics in natural resource administration. Regulated hunting is a centrepiece of many carnivore management programmes and, although a number of hunting effects on population dynamics, body-size distributions and life history in other wildlife have been observed, its effects on life history and demography of large carnivores remain poorly documented.
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Auteurs : Richard Bischof, Christophe Bonenfant, Inger Maren Rivrud, Andreas Zedrosser, Andrea Friebe, Tim Coulson, Atle Mysterud & Jon E. Swenson
Nature Ecology & Evolution (2017) doi:10.1038/s41559-017-0400-7
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