Centre d'Etudes Biologiques de Chizé

Airflows redefine the cost of aerial transport in the wild

Fuel economy matters to both animals and machines, as the cost of transport can determine where, when, and how far locomotion is possible. However, established estimates of these values for animal flight come from laboratories and treat the atmosphere as constant, even though fre...

Agonistic interactions and vocalizations among Procellariiformes in multi-species feeding aggregations, observed through bird-borne cameras

Abstract Marine predators frequently aggregate at food sources, where interactions can range from cooperative group hunting to interference competition for resources. To investigate interactions at feeding aggregations among procellariiforms, we equipped wandering albatrosses Dio...

France’s Pesticide Load Index: Decreasing Ecotoxicity, Persistent Human Toxicity, Rising Concern For Environmental Fate

Pesticide use has strong adverse effect on biodiversity, ecosystem functioning and human health . Numerous policies have been proposed to reduce their use and associated risk but evaluations of changes in pesticide risk over time and space are still rare. Here, we evaluate tempor...

The geometry of gametic dispersal in a flying mammal, Rhinolophus hipposideros

Abstract Dispersal influences population and evolutionary dynamics, in a manner that depends on by which dispersal strategies gene flow occurs. In some species, mating partners move exclusively for mating, dispersing genes but not individuals. This is the case in many bat species...

Climate mitigation contributes more to population persistence than evolutionary adaptation in a long-lived seabird

Evolutionary rescue–the process by which adaptive evolution prevents population extinction following environmental deterioration –is frequently proposed as a buffer against biodiversity loss under climate change, yet its capacity to alter future population trajectories is rarely...

Monitoring and assessment of elasmobranch bycatches in artisanal maritime fishing in southern Gabon, Central Africa

Elasmobranchs (sharks and rays) are particularly vulnerable to fishing pressure owing to their life-history traits, making them a major conservation concern in coastal ecosystems. To assess the composition and temporal dynamics of elasmobranch captures in southern Gabon, this stu...

Ubiquity and seasonality of deep submesoscales in the Southern Ocean revealed by elephant seals

Abstract Ocean submesoscale fronts with a size of 1–20 km have been extensively documented within the surface mixed layer, but little is known about their existence below it. We analyze a record of 133 598 dives performed by instrumented Southern Elephant Seals from 2014 to 2020...

Will work for sardines: 20 years of animal-borne ocean observing by Australia’s Integrated Marine Observing System (IMOS) Animal Tagging Facility

The world’s ocean stores ~90% of the excess heat generated by anthropogenic global warming, making sustained ocean observations essential for understanding physical, biological and climate processes. Here, we describe how the Integrated Marine Observing System (IMOS) Animal Taggi...