199 Works
Data - Leech removal is not the primary driver of basking behavior in a freshwater turtle
Donald McKnight, Wytamma Wirth, Lin Schwarzkopf & Eric Nordberg
Leaving the water to bask (usually in the sun) is a common behavior for many freshwater turtles, with some species also engaging in “nocturnal basking.” Ectoparasite removal is an obvious hypothesis to explain nocturnal basking and has also been proposed as a key driver of diurnal basking. However, the efficacy of basking, day or night, to remove leeches has not been experimentally tested. Therefore, we examined the number of leeches that were removed from Krefft’s...
Age- and sex-dependent variation in relatedness corresponds to reproductive skew, territory inheritance and workload in cooperatively breeding cichlids
Dario Josi, Dik Heg, Tomohiro Takeyama, Danielle Bonfils, Dmitry A. Konovalov, Joachim G. Frommen, Masanori Kohda & Michael Taborsky
Kin selection plays a major role in the evolution of cooperative systems. However, many social species exhibit complex within-group relatedness structures, where kin selection alone cannot explain the occurrence of cooperative behaviour. Understanding such social structures is crucial to elucidate the evolution and maintenance of multi-layered cooperative societies. In lamprologine cichlids, intragroup relatedness seems to correlate positively with reproductive skew, suggesting that in this clade dominants tend to provide reproductive concessions to unrelated subordinates to...
Australian votes in the making: a critical review of voter behaviour research in Australia
Raphaella Kathryn CrosbyLianas and trees exhibit divergent intrinsic water-use efficiency along elevational gradients in South American and African tropical forests
Francis Mumbanza M., Marijn Bauters, Félicien Meunier, Pascal Boeckx, Lucas Cernusak, Hannes De Deurwaerder, Miro Demol, Camille Meeussen, Bram Sercu, Lore Verryckt, Jana Pauwels, Landry Cizungu N., Selene Báez, Constantin Lubini A. & Hans Verbeeck
Elevational gradients provide excellent opportunities to explore long-term morphological and physiological responses of plants to environmental change. We determined the difference in the elevational pattern of foliar carbon isotope composition (δ13C) between lianas and trees, and assessed whether this difference arises from changes in photosynthesis or stomatal conductance. We also explored the pattern of nutrient limitations with the elevation of these two growth forms. We conducted inventories of lianas and trees using standardized techniques along...
Negotiations Over Parental Care: A Test of Alternative Hypotheses in the Clown Anemonefish
Tina Barbasch, Rebecca Branconi, Robin Francis, Madison Pacaro, Maya Srinivasan, Geoff Jones & Peter Buston
In species with biparental care, conflict arises over how much each parent provides to their offspring because both parents benefit from shifting the burden of care to the other. Here, we tested alternative hypotheses for how parents will negotiate offspring care using a wild population of clownfish (Amphiprion percula). We experimentally handicapped parents by fin-clipping the female in 23 groups, the male in 23 groups, and neither parent in 23 groups and measured changes in...