58 Works

Data from: Photos provide information on age, but not kinship, of Andean bear

Russell C. Van Horn, Becky Zug, Robyn D. Appleton, Ximena Velez-Liendo, Susanna L. Paisley, Corrin LaCombe & Susanna Paisley
Using photos of captive Andean bears of known age and pedigree, and photos of wild Andean bear cubs <6 months old, we evaluated the degree to which visual information may be used to estimate bears’ ages and assess their kinship. We demonstrate that the ages of Andean bear cubs ≤6 months old may be estimated from their size relative to their mothers with an average error of <0.01 ± 13.2 days (SD; n = 14),...

Data from: Riparian reserves help protect forest bird communities in oil palm dominated landscapes

Simon L. Mitchell, David P. Edwards, Henry Bernard, David Coomes, Tommaso Jucker, Zoe G. Davies & Matthew J. Struebig
1. Conversion of forest to oil palm agriculture is a significant and continuing threat to tropical biodiversity. Despite this, little is known about the value of riparian reserves in oil palm and how these conservation set-asides might best be managed to maintain biodiversity. 2. We characterised bird communities of 28 sites in an oil palm-forest mosaic in Sabah, Malaysia using 6104 encounters from 840 point counts. Sites included oil palm riparian reserves of various vegetation...

Data from: Bioclimatic envelope models predict a decrease in tropical forest carbon stocks with climate change in Madagascar

Ghislain Vieilledent, Oliver Gardi, Clovis Grinand, Christian Burren, Mamitiana Andriamanjato, Christian Camara, Charlie J. Gardner, Leah Glass, Andriambolantsoa Rasolohery, Harifidy Ratsimba, Valéry Gond & Jean-Roger Rakotoarijaona
1. Recent studies have underlined the importance of climatic variables in determining tree height and biomass in tropical forests. Nonetheless, the effects of climate on tropical forest carbon stocks remain uncertain. In particular, the application of process-based dynamic global vegetation models have led to contrasting conclusions regarding the potential impact of climate change on tropical forest carbon storage. 2. Using a correlative approach based on a bioclimatic envelope model and data from 1771 forest plots...

Data from: Postnatal depression and reproductive success in modern, low-fertility contexts

Sarah Myers, Oskar Burger & Sarah E. Johns
Background and objectives: Postnatal depression (PND) presents a puzzling phenomenon to evolutionary anthropologists as it is highly prevalent and yet detrimental to child development and maternal health. Adaptive explanations have been proposed, but have not been tested with data that directly link PND to female fertility. Methodology: A survey was designed to gather complete reproductive histories and retrospective measures of PND to measure the effects of PND on fitness. Respondents were born between 1930 and...

Data from: The role of inhibitory dynamics in the loss and re-emergence of macropodoid tooth traits

Aidan M. C. Couzens, Alistair Robert Evans, Matthew M. Skinner & Gavin J. Prideaux
The reversibility of phenotypic evolution is likely to be strongly influenced by the ability of underlying developmental systems to generate ancestral traits. However, few studies have quantitatively linked these developmental dynamics to traits which re-evolve. In this study we assess how changes in the inhibitory cascade, a developmental system that regulates relative tooth size in mammals, influenced the loss and reversals of the posthypocristid, a molar tooth crest, in the kangaroo superfamily Macropodoidea. We find...

Data from: Widespread gene flow between oceans in a pelagic seabird species complex

Claire Raisin, Deborah A. Dawson, Helen Hipperson, Gavin J. Horsburgh, Jim J. Groombridge, Stefanie M.H. Ismar, Paul Sweet, Carl G. Jones, Vikash Tatayah, Kevin Ruhomaun, Norris Ken, Katherine A. Booth Jones, Malcolm A.C. Nicoll, Malcolm A. C. Nicoll, Ken Norris & Stefanie M. H. Ismar
Global-scale gene flow is an important concern in conservation biology as it has the potential to either increase or decrease genetic diversity in species and populations. Although many studies focus on the gene flow between different populations of a single species, the potential for gene flow and introgression between species is understudied, particularly in seabirds. The only well-studied example of a mixed-species, hybridizing population of petrels exists on Round Island, in the Indian Ocean. Previous...

High temperatures and human pressures interact to influence mortality in an African carnivore

Daniella Rabaiotti, Rosemary Groom, J. W. McNutt, Jessica Watermeyer, Helen O'Neill & Rosie Woodroffe
1. The impacts of high ambient temperatures on mortality in humans and domestic animals are well understood. However much less is known about how hot weather affects mortality in wild animals. High ambient temperatures have been associated with African wild dog Lycaon pictus pup mortality, suggesting that high temperatures might also be linked to high adult mortality. 2. We analysed mortality patterns in African wild dogs radio-collared in Kenya (0°N), Botswana (20°S) and Zimbabwe (20°S),...

Data from: Intrachromosomal rearrangements in avian genome evolution: evidence for regions prone to breakpoints

Darren K. Griffin, Benjamin M. Skinner, Darren K. Griffin, Benjamin M. Skinner, B M Skinner & D K Griffin
It is generally believed that the organization of avian genomes remains highly conserved in evolution as chromosome number is constant and comparative chromosome painting demonstrated there to be very few interchromosomal rearrangements. The recent sequencing of the zebra finch (Taeniopygia guttata) genome allowed an assessment of the number of intra-chromosomal rearrangements between it and the chicken (Gallus gallus) genome, revealing a surprisingly high number of intra-chromosomal rearrangements. With the publication of the turkey (Meleagris gallopavo)...

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