. (2018). Sperm collection in Black-legged Kittiwakes and characterization of sperm velocity and morphology (Vol. 9).
Abstract: Collecting and studying live sperm is central to many important fields of biology. Yet, a simple method to collect live sperm is lacking in wild seabird species. Here, we describe a non-invasive method to collect viable sperm samples based on a simple massage technique applied to male Black-legged Kittiwakes (Rissa tridactyla).
Programme: 330
|
. (2016). Effects of geolocators on hatching success, return rates, breeding movements, and change in body mass in 16 species of Arctic-breeding shorebirds (Vol. 4).
|
. (2017). Three-dimensional space use during the bottom phase of southern elephant seal dives (Vol. 5).
Abstract: In marine pelagic ecosystems, the spatial distribution of biomass is heterogeneous and dynamic. At large scales, physical processes are the main driving forces of biomass distribution. At fine scales, both biotic and abiotic parameters are likely to be key determinants in the horizontal and vertical distribution of biomass, with direct consequences on the foraging behaviour of diving predators. However, fine scale three-dimensional (3D) spatial interactions between diving predators and their prey are still poorly known.
Programme: 109
|
Petra Quillfeldt, Henri Weimerskirch, Juan F. Masello, Karine Delord, Rona A. R. McGill, Robert W. Furness, Yves Cherel. (2019). Behavioural plasticity in the early breeding season of pelagic seabirds – a case study of thin-billed prions from two oceans (Vol. 7).
Abstract: In long-lived seabirds that migrate large distances independently of each other, the early part of the breeding season is crucially important for a successful reproductive attempt. During this phase, pair bonds are re-established and partners coordinate their breeding duties. We studied the early breeding season in Thin-billed prions Pachyptila belcheri breeding in the Atlantic Ocean (Falkland/Malvinas Islands) and Indian Ocean (Kerguelen). Despite overlap in the wintering areas, these two populations exhibit differences in their timing and direction of migration. We hypothesised that these differences would influence behaviour during the early breeding season.
Programme: 109
|
. (2016). Towards a global higher-frequency sea level dataset (Vol. 3).
Abstract: This paper describes the assembly of an updated quasi-global dataset of higher-frequency sea level information obtained from tide gauges operated by many agencies around the world. We believe that the construction of such a dataset is fundamental to scientific research in sea level variability and also to practical aspects of coastal engineering. A first version of the dataset was used in approximately a dozen published studies, and this second version is about twice the size, containing longer and more geographically representative sea level records. The dataset has acquired a digital object identifier and may be obtained from several sources. The paper mentions some of the merits of and deficiencies with the present version and takes a forward look at how the dataset may be updated in the future.
Keywords: international data centres sea level data tide gauges
Programme: 688
|
Collet Julien, Patrick Samantha C., Weimerskirch Henri. (2017). Behavioral responses to encounter of fishing boats in wandering albatrosses (Vol. 7).
Abstract: Animals are attracted to human food subsidies worldwide. The behavioral response of individuals to these resources is rarely described in detail, beyond chances of encounters. Seabirds for instance scavenge in large numbers at fishing boats, triggering crucial conservation issues, but how the response to boats varies across encounters is poorly known. Here we examine the behavioral response of wandering albatrosses (Diomedea exulans), equipped with GPS tags, to longline fishing boats operating near their colony for which we had access to vessel monitoring system data. We distinguish between encounters (flying within 30 km of a boat) and attendance behavior (sitting on the sea within 3 km of a boat), and examine factors affecting each. In particular, we test hypotheses that the response to encountered boats should vary with sex and age in this long?lived dimorphic species. Among the 60% trips that encountered boats at least once, 80% of them contained attendance (but attendance followed only 60% of each single encounter). Birds were more attracted and remained attending longer when boats were hauling lines, despite the measures enforced by this fleet to limit food availability during operations. Sex and age of birds had low influence on the response to boats, except the year when fewer boats came fishing in the area, and younger birds were attending further from boats compared to older birds. Net mass gain of birds was similar across sex and not affected by time spent attending boats. Our results indicate albatrosses extensively attend this fishery, with no clear advantages, questioning impacts on foraging time budgets. Factors responsible for sex foraging segregation at larger scale seem not to operate at this fleet near the colony and are not consistent with predictions of optimal foraging theory on potential individual dominance asymmetries. This approach complements studies of large?scale overlap of animals with human subsidies.
Keywords: competition fisheries foraging decisions movement ecology seabirds vessel monitoring system
Programme: 109
|
Jeanniard?du?Dot Tiphaine, Trites Andrew W., Arnould John P. Y., Speakman John R., Guinet Christophe. (2017). (Vol. 7).
|
Grissac Sophie, Bartumeus Frederic, Cox Sam L., Weimerskirch Henri. (2017). Early?life foraging: Behavioral responses of newly fledged albatrosses to environmental conditions (Vol. 7).
|
. (2018). Local weather and body condition influence habitat use and movements on land of molting female southern elephant seals (Mirounga leonina) (Vol. 8).
Keywords: body mass GPS loggers habitat selection marine mammals meteorological conditions molt pinnipeds population counts
Programme: 1201
|
. (2018). Benthic species of the Kerguelen Plateau show contrasting distribution shifts in response to environmental changes (Vol. 8).
Keywords: conservation echinoid future predictions historical changes Kerguelen Plateau species distribution modeling
Programme: 1044
|