Data from: A functional diversity approach of crop sequences reveals that weed diversity and abundance show different responses to environmental variabilityLucie Mahaut, Sabrina Gaba & Guillaume Fried
1. Combining several crop species and associated agricultural practices in a crop sequence has the potential to control weed abundance while promoting weed diversity in arable fields. However, how the variability of environmental conditions that arise from crop sequences affects weed diversity and abundance remains poorly understood, with most studies to-date simply opposing weed communities in monoculture and in crop rotation. Here, we describe crop sequences along gradients of disturbance and resource variability using a...
Data from: Genomics detects population structure within and between ocean basins in a circumpolar seabird: the white-chinned petrelKalinka Rexer-Huber, Andrew J. Veale, Paulo Catry, Yves Cherel, Ludovic Dutoit, Yasmin Foster, John C. McEwan, Graham C. Parker, Richard A. Phillips, Peter G. Ryan, Andrew J. Stanworth, Tracey Van Stijn, David R. Thompson, Jonathan Waters & Bruce C. Robertson
The Southern Ocean represents a continuous stretch of circumpolar marine habitat, but the potential physical and ecological drivers of evolutionary genetic differentiation across this vast ecosystem remain unclear. We tested for genetic structure across the full circumpolar range of the white-chinned petrel (Procellaria aequinoctialis) to unravel the potential drivers of population differentiation and test alternative population differentiation hypotheses. Following range-wide comprehensive sampling, we applied genomic (genotyping-by-sequencing or GBS; 60,709 loci) and standard mitochondrial-marker approaches (cytochrome...
Changes in land use generate trade-offs in the delivery of ecosystem services in agricultural landscapes. However, we know little about how the stability of ecosystem services responds to landscape composition, and what ecological mechanisms underlie these trade-offs. Here, we develop a model to investigate the dynamics of three ecosystem services in intensively-managed agroecosystems, i.e. pollination-independent crop yield, crop pollination, and biodiversity. Our model reveals trade-offs and synergies imposed by landscape composition that affect not only...
High mortality rates in a juvenile free-ranging marine predator and links to dive and forage abilitySam L Cox, Matthieu Authier, Florian Orgeret, Henri Weimerskirch & Christophe Guinet
1. High juvenile mortality rates are typical of many long-lived marine vertebrate predators. Insufficient development in dive and forage ability are considered key drivers of this. However, direct links to survival outcome are sparse, particularly in free-ranging marine animals that may not return to land. 2. In this study, we conduct exploratory investigations toward early mortality in juvenile southern elephant seals Mirounga leonina. 20 post-weaning pups were equipped with (1) a new generation satellite relay...
Data from: Development of flight and foraging behaviour in a juvenile seabird with extreme soaring capacitiesAlexandre Corbeau, Aurélien Prudor, Akiko Kato & Henri Weimerskirch
1) The early-life of animals is a period of high mortality, when foraging capacities are assumed to be improved progressively. In birds, this critical period involves the improvement of the flight. How do young birds gain these capacities has rarely been studied in natural conditions especially in seabirds that spend most of their life at sea. 2) We used detailed GPS and body acceleration data on 37 great frigatebirds (Fregata minor), to test the hypothesis...
A framework for mapping the distribution of seabirds by integrating tracking, demography and phenologyAna P. B. Carneiro, Elizabeth J. Pearmain, Steffen Oppel, Thomas A. Clay, Richard A. Phillips, Anne-Sophie Bonnet-Lebrun, Ross M. Wanless, Edward Abraham, Yvan Richard, Joel Rice, Jonathan Handley, Tammy E. Davies, Ben J. Dilley, Peter G. Ryan, Cleo Small, Javier Arata, John P. Y. Arnould, Elizabeth Bell, Leandro Bugoni, Letizia Campioni, Paulo Catry, Jaimie Cleeland, Lorna Deppe, Graeme Elliott, Amanda Freeman … & Maria P. Dias
1. The identification of geographic areas where the densities of animals are highest across their annual cycles is a crucial step in conservation planning. In marine environments, however, it can be particularly difficult to map the distribution of species, and the methods used are usually biased towards adults, neglecting the distribution of other life-history stages even though they can represent a substantial proportion of the total population. 2. Here we develop a methodological framework for...
1. Animal populations are often comprised of both foraging specialists and generalists. For instance, some individuals show higher foraging site fidelity (spatial specialisation) than others. Such individual differences in degree of specialisation can persist over timescales of months or even years in long-lived animals, but the mechanisms leading to these different individual strategies are not fully understood. 2. There is accumulating evidence that individual variation in foraging behaviour is shaped by animal personality traits, such...
Centre d'Etudes Biologiques de Chizé7
University of Otago2
British Antarctic Survey2
French National Centre for Scientific Research2
University of Cape Town2
National Institute of Water and Atmospheric Research2
University of Liverpool2
Centre d'Ecologie Fonctionnelle et Evolutive1
Oregon State University1