Data from: Dwarf brooder versus giant broadcaster: combining genetic and reproductive data to unravel cryptic diversity in an Antarctic brittle starQuentin Jossart, Chester Sands & Mary A. Sewell
Poecilogony, or multiple developmental modes in a single species, is exceedingly rare. Several species described as poecilogenous were later demonstrated to be multiple (cryptic) species with a single developmental mode. The Southern Ocean is known to harbor a high proportion of brooders (Thorson's Rule) but with an increasing number of counter examples over recent years. Here we evaluated poecilogony versus crypticism in the brittle star Astrotoma agassizii across the Southern Ocean. This species was initially...
Data from: Quantifying Susceptibility of Marine Invertebrate Biocomposites to Dissolution in Reduced pHMatthew Chadwick, Elizabeth M. Harper, Anaëlle Lemasson, John I. Spicer & Lloyd S. Peck
Ocean acidification threatens many ecologically and economically important marine calcifiers. The increase in shell dissolution under the resulting reduced pH is an important and increasingly recognised threat. The biocomposites that make up calcified hardparts have a range of taxon-specific compositions and microstructures, and it is evident that these may influence susceptibilities to dissolution. Here, we show how dissolution (thickness loss) under both ambient and predicted end-century pH (≈7.6) varies between seven different bivalve mollusc and...
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...
Data from: Sex-specific effects of fisheries and climate on the demography of sexually dimorphic seabirdsDimas Gianuca, Stephen C. Votier, Deborah Pardo, Andrew G. Wood, Richard B. Sherley, Louise Ireland, Remi Choquet, Roger Pradel, Stuart Townley, Jaume Forcada, Geoffrey N. Tuck & Richard A. Phillips
1. Many animal taxa exhibit sex-specific variation in ecological traits, such as foraging and distribution. These differences could result in sex-specific responses to change, but such demographic effects are poorly understood. 2. Here we test for sex-specific differences in the demography of northern (NGP, Macronectes halli) and southern (SGP, M. giganteus) giant petrels - strongly sexually size-dimorphic birds that breed sympatrically at South Georgia, South Atlantic Ocean. Both species feed at sea or on carrion...
Data from: Combining correlative and mechanistic niche models with human activity data to elucidate the invasive potential of a sub-Antarctic insectLuis Pertierra, Pedro Aragón, Miguel Olalla-Tarraga, Greta Vega, Grant Duffy, Pete Convey, Scott Hayward, Kevin Hughes & Jesamine Bartlett
Aim Correlative Species Distribution Models (SDMs) are subject to substantial spatio-temporal limitations when historical occurrence records of data-poor species provide incomplete and outdated information for niche modelling. Complementary mechanistic modelling techniques can, therefore, offer a valuable contribution to underpin more physiologically-informed predictions of biological invasions, the risk of which is often exacerbated by climate change. In this study we integrate physiological and human pressure data to address the uncertainties and limitations of correlative SDMs and...
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...
The impacts of climate change and the socioecological challenges they present are ubiquitous and increasingly severe. Practical efforts to operationalize climate-responsive design and management in the global network of marine protected areas (MPAs) are required to ensure long-term effectiveness for safeguarding marine biodiversity and ecosystem services. Here, we review progress in integrating climate change adaptation into MPA design and management and provide eight recommendations to expedite this process. Climate-smart management objectives should become the default...
Data from: Degradation of internal organic matter is the main control on pteropod shell dissolution after deathRosie L. Oakes, Victoria L. Peck, Clara Manno & Timothy J. Bralower
The potential for preservation of thecosome pteropods is thought to be largely governed by the chemical stability of their delicate aragonitic shells in seawater. However, sediment trap studies have found that significant carbonate dissolution can occur above the carbonate saturation horizon. Here we present the results from experiments conducted on two cruises to the Scotia Sea to directly test whether the breakdown of the organic pteropod body influences shell dissolution. We find that, on the...
Data from: Predicting future distributions of lanternfish; a significant ecological resource within the Southern OceanJennifer J. Freer, Geraint A. Tarling, Martin A. Collins, Julian C. Partridge & Martin J. Genner
Aim: Lanternfish (Myctophidae) are one of the most abundant and ecologically important families of pelagic teleosts, yet how these species will respond to climate change is unclear, especially within polar regions. The aim of this study is to predict the impact of climate change on the distribution of Southern Ocean lanternfish, and to relate these predicted responses to species traits. Location: Circumpolar, 35-75° S. Methods: We used MaxEnt ecological niche models to estimate the present...
British Antarctic Survey9
Centre d'Etudes Biologiques de Chizé2
University of Otago2
University of Cape Town2
National Institute of Water and Atmospheric Research2
Centre d'Ecologie Fonctionnelle et Evolutive1
The Nature Conservancy1
Université Paul-Valéry Montpellier1