Data from: Interspecific signalling between mutualists: food-thieving drongos use a cooperative sentinel call to manipulate foraging partnersBruce D. Baigrie, Alex M. Thomspon & Tom P. Flower
Interspecific communication is common in nature, particularly between mutualists. However, whether signals evolved for communication with other species, or are in fact conspecific signals eavesdropped upon by partners, is often unclear. Fork-tailed drongos (Dicrurus adsimilis) associate with mixed-species groups and often produce true alarms at predators, whereupon associating species flee to cover, but also false alarms to steal associating species' food (kleptoparasitism). Despite such deception, associating species respond to drongo non-alarm calls by increasing their...
Data from: Phylogenetic diversity and coevolutionary signals among trophic levels change across a habitat edgeGuadalupe Peralta, Carol M. Frost, Raphael K. Didham, Arvind Varsani & Jason M. Tylianakis
1. Incorporating the evolutionary history of species into community ecology enhances understanding of community composition, ecosystem functioning and responses to environmental changes. 2. Phylogenetic history might partly explain the impact of fragmentation and land-use change on assemblages of interacting organisms, and even determine potential cascading effects across trophic levels. However, it remains unclear whether phylogenetic diversity of basal resources is reflected at higher trophic levels in the food web. In particular, phylogenetic determinants of community...
Data from: Bouldering: an alternative strategy to long-vertical climbing in root-climbing hortensiasCarolina Granados Mendoza, Sandrine Isnard, Tristan Charles-Dominique, Jan Van Den Bulcke, Nick P. Rowe, Joris Van Acker, Paul Goetghebeur & Marie-Stéphanie Samain
In the Neotropics, the genus Hydrangea of the popular ornamental hortensia family is represented by climbing species that strongly cling to their support surface by means of adhesive roots closely positioned along specialized anchoring stems. These root-climbing hortensia species belong to the nearly exclusive American Hydrangea section Cornidia and generally are long lianescent climbers that mostly flower and fructify high in the host tree canopy. The Mexican species Hydrangea seemannii, however, encompasses not only long...
Data from: Safety and immunogenicity of H1/IC31®, an adjuvanted TB subunit vaccine, in HIV-infected adults with CD4+ Lymphocyte counts greater than 350 cells/mm3: a phase II, multi-centre, double-blind, randomized, placebo-controlled trialKlaus Reither, Lynn Katsoulis, Trevor Beattie, Nicolene Gardiner, Nicole Lenz, Khadija Said, Elirehema Mfinanga, Christian Pohl, Katherine L. Fielding, Hannah Jeffery, Benjamin M. Kagina, Elisabeth J. Hughes, Thomas J. Scriba, Willem A. Hanekom, Søren T. Hoff, Peter Bang, Ingrid Kromann, Claudia Daubenberger, Peter Andersen & Gavin J. Churchyard
Background: Novel tuberculosis vaccines should be safe, immunogenic, and effective in various population groups, including HIV-infected individuals. In this phase II multi-centre, double-blind, placebo-controlled trial, the safety and immunogenicity of the novel H1/IC31 vaccine, a fusion protein of Ag85B-ESAT-6 (H1) formulated with the adjuvant IC31, was evaluated in HIV-infected adults. Methods: HIV-infected adults with CD4+ T cell counts >350/mm3 and without evidence of active tuberculosis were enrolled and followed until day 182. H1/IC31 vaccine or...
Data from: The influence of feeding on the evolution of sensory signals: a comparative test of an evolutionary trade-off between masticatory and sensory functions of skulls in southern African Horseshoe bats (Rhinolophidae)David S. Jacobs, Anna Bastian & Lunga Bam
The skulls of animals have to perform many functions. Optimization for one function may mean another function is less optimized resulting in evolutionary trade-offs. Here we investigate whether a trade-off exists between the masticatory and sensory functions of animal skulls using echolocating bats as model species. Several species of rhinolophid bats deviate from the allometric relationship between body size and echolocation frequency. Such deviation may be the result of selection for increased bite force resulting...
Island populations provide natural laboratories for studying key contributors to evolutionary change, including natural selection, population size, and the colonization of new environments. The demographic histories of island populations can be reconstructed from patterns of genetic diversity. House mice (Mus musculus) inhabit islands throughout the globe, making them an attractive system for studying island colonization from a genetic perspective. Gough Island, in the central South Atlantic Ocean, is one of the remotest islands in the...
Data from: Convergent and correlated evolution of major life-history traits in the angiosperm genus Leucadendron (Proteaceae)Jeanne Tonnabel, Agnès Mignot, Emmanuel J. P. Douzery, Anthony G. Rebelo, Frank M. Schurr, Jeremy Midgley, Nicola Illing, Fabienne Justy, Denis Orcel & Isabelle Olivieri
Natural selection is expected to cause convergence of life histories among taxa as well as correlated evolution of different life-history traits. Here, we quantify the extent of convergence of five key life-history traits (adult fire survival, seed storage, degree of sexual dimorphism, pollination mode, and seed-dispersal mode) and test hypotheses about their correlated evolution in the genus Leucadendron (Proteaceae) from the fire-prone South African fynbos. We reconstructed a new molecular phylogeny of this highly diverse...
Data from: Continuous-time spatially explicit capture-recapture models, with an application to a jaguar camera-trap survey.Rebecca Foster, Bart Harmsen, Lorenzo Milazzo, Greg Distiller & David Borchers
1. Many capture-recapture surveys of wildlife populations operate in continuous time but detections are typically aggregated into occasions for analysis, even when exact detection times are available. This discards information and introduces subjectivity, in the form of decisions about occasion definition. 2. We develop a spatio-temporal Poisson process model for spatially explicit capture-recapture (SECR) surveys that operate continuously and record exact detection times. We show that, except in some special cases (including the case in...
University of Cape Town8
University of Cambridge2
South African National Biodiversity Institute1
Fred Hutchinson Cancer Research Center1
London School of Hygiene & Tropical Medicine1
University of Hohenheim1
University of Belize1
Royal Society for the Protection of Birds1
University of Lisbon1