Results 1 to 10 of about 1,004 (57)

Poissons migrateurs amphihalins, espèces diadromes : de quoi parle-t-on ?

Sciences, Eaux & Territoires
Basé sur une analyse approfondie de la littérature internationale sur le sujet, cette note expose et illustre avec des exemples français cinq critères dont les différentes combinaisons permettent de qualifier une espèce de migratrice amphihaline.
Éric ROCHARD, Patrick LAMBERT, Géraldine LASSALLE   +2 more
doaj   +2 more sources

Note sur le rôle vecteur des Ardéidés dans certaines helminthoses

Revue d’Elevage et de Médecine Vétérinaire des Pays Tropicaux, 1973
Des oeufs de "Fasciola gigantica" et "Ascaris suum" peuvent rester viables plus de 48 heures dans l'intestin de certain Ardeidae. "Ardeola idae", espèce migratrice d'Afrique à Madagascar, pourrait donc théoriquement participer au transfert d'helminthoses
Pierre Daynès, Jean Blancou
doaj   +2 more sources

Caractéristiques de la Dynamique des Oiseaux d’Eau sur le Bras Majeur de la Komadougou-Yobé dans les Communes de Diffa et Gueskerou, Niger

European Scientific Journal, 2022
Cette étude à pour objectif de caractériser la faune aviaire sur un transon de 10 km de la Komadougou en période hivernale dans les communes de Diffa et Gueskerou.
Issiaka Youssoufa, Karema Ary Madou Kaoulé, Assane Anabi Toudjani, Grema Moustapha, Mahamane Ali   +4 more
semanticscholar   +1 more source

Dynamiques hydrogéomorphologiques historiques et actuelles d'une rivière perturbée par les activités de la drave et analyse des impacts d'un démantèlement de barrage

Canadian Geographer / Le géographe canadien, Volume 67, Issue 4, Page 537-549, Winter / hiver 2023., 2023
Résumé Au Québec, la dynamique fluviale de la rivière des Escoumins a été perturbée par l'industrie forestière pendant plus d'un siècle. Un barrage a notamment été construit près de l'embouchure en 1846, puis démantelé en 2013. Ces perturbations ont entraîné des répercussions importantes sur l'équilibre du cours d'eau et sur l'habitat du saumon ...
Marianne Bouchard, Maxime Boivin
wiley   +1 more source

Remote sensing in seagrass ecology: coupled dynamics between migratory herbivorous birds and intertidal meadows observed by satellite during four decades

Remote Sensing in Ecology and Conservation, Volume 9, Issue 3, Page 420-433, June 2023., 2023
Trophic interactions in seagrass meadows have been rarely investigated over the long‐term and at the scale of a whole seagrass habitat. In this work, reciprocal links between an intertidal seagrass species, Zostera noltei, and an herbivorous bird feeding on this seagrass species, the migratory goose Branta bernicla bernicla, were investigated using an ...
Maria Laura Zoffoli, Pierre Gernez, Simon Oiry, Laurent Godet, Sébastien Dalloyau, Bede Ffinian Rowe Davies, Laurent Barillé, Kylie Scales, Alice Jones   +8 more
wiley   +1 more source

Windfarm collisions in medium‐sized raptors: even increasing populations can suffer strong demographic impacts

Animal Conservation, Volume 26, Issue 2, Page 264-275, April 2023., 2023
We demonstrate on a short‐lived, endangered raptor species, the Lesser kestrel, that additional mortality due to windfarms can have a negative impact on population growth rate. Although the impact is currently moderate, the forecasted decrease in immigration rate, and increase in the number of windfarms at a wider scale, may threaten the recovery of ...
O. Duriez, P. Pilard, N. Saulnier, P. Boudarel, A. Besnard   +4 more
wiley   +1 more source

Tens of thousands of migrating hoverflies found dead on a strandline in the South of France Des dizaines de milliers de syrphes migrateurs retrouvés morts sur une plage du sud de la France

Insect Conservation and Diversity, Volume 16, Issue 2, Page 306-312, March 2023., 2023
A high number of insects were found dead on a beach in the South of France. We suspect strong winds or a localised storm were at the origin of their stranding. All dead species recorded are known for their migratory behaviour and hoverflies made up about 77% of the dead insects.
Lisa Fisler, Gabriel Marcacci
wiley   +1 more source

FlywayNet: A hidden semi‐Markov model for inferring the structure of migratory bird networks from count data

Methods in Ecology and Evolution, Volume 14, Issue 1, Page 265-279, January 2023., 2023
Abstract Every year, millions of birds migrate between breeding and nonbreeding habitat, but the relative numbers of animals moving between sites are difficult to observe directly. Here we propose FlywayNet, a discrete network model based on observed count data, to determine the most likely migration links between regions using statistical modelling ...
Sam Nicol, Marie‐Josée Cros, Nathalie Peyrard, Régis Sabbadin, Ronan Trépos, Richard A. Fuller, Bradley K. Woodworth   +6 more
wiley   +1 more source

Distance to hedgerows drives local repulsion and attraction of wind turbines on bats: Implications for spatial siting

Journal of Applied Ecology, Volume 59, Issue 8, Page 2142-2153, August 2022., 2022
This study provides empirical evidence that wind turbines close to optimal habitats such as hedgerows strongly repel bats, while wind turbines located farther away in open areas could attract them. Increased risks of collisions and habitat losses near edges strengthen the importance of keeping wind turbines at a sufficient distance from woody edges (e ...
Camille Leroux, Christian Kerbiriou, Isabelle Le Viol, Nicolas Valet, Kévin Barré   +4 more
wiley   +1 more source

Timing and magnitude of climate‐driven range shifts in transboundary fish stocks challenge their management

Global Change Biology, Volume 28, Issue 7, Page 2312-2326, April 2022., 2022
We use model projections to explore the timing and intensity in the distribution of marine fish stocks that are shared across the world's Exclusive Economic Zones (EEZ). Our findings suggest that many shared stocks’ distribution and catch are expected to change in most EEZs by 2030.
Juliano Palacios‐Abrantes, Thomas L. Frölicher, Gabriel Reygondeau, U. Rashid Sumaila, Alessandro Tagliabue, Colette C. C. Wabnitz, William W. L. Cheung   +6 more
wiley   +1 more source