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Exploring the role of carotenoid pigments in physiological function and color signals
(2017-04-26)
The study of carotenoid-based coloration, particularly in bird species, is a large and growing literature that is increasingly defined by the framework of a single overarching concept, the resource tradeoff hypothesis. ...
What do we really know about oxidative stress? Facing the problems with current oxidative stress studies in passerine birds.
(2017-07-27)
Oxidative stress occurs in organisms when there are not enough antioxidants to satiate reactive oxygen species formed during oxidative phosphorylation within the mitochondria. The excess in reactive oxygen species can cause ...
Spatial Analysis of Plateau Pika Habitat Use
(2017-07-27)
The habitat occupied by animals during their normal activities is referred to as their home
range. This physical space contains limited resources that are necessary for reproduction and
survival. Using spatial analysis ...
Patterns and rates of ecological diversification among Neotropical cichlid fishes
(2017-07-25)
The rapid rise of phenotypic diversity and corresponding ecological roles is an emblematic pattern of cichlid evolution, particularly within clades of the East African Great Lakes. Herein, I evaluate the phenotypic and ...
Minnows and molecules: resolving the broad and fine-scale evolutionary patterns of Cypriniformes
(2017-04-21)
Cypriniformes (minnows, carps, loaches, and suckers) is the largest group of freshwater fishes in the world. Despite much attention, previous attempts to elucidate relationships using molecular and morphological characters ...
Phylogeography and biodiversity of ophiuroids in the Southern Ocean
(2017-06-28)
The Southern Ocean surrounding Antarctica is home to a highly endemic benthic fauna, often attributed to the strong oceanic barrier, the Antarctic Polar front. The Antarctic Polar Front and Antarctic Circumpolar Current ...
Population Regulation of Frogs and Lizards in a Lowland Wet Neotropical Forest: Integrating Alternative Hypotheses
(2017-07-26)
Populations can be regulated in space and time from the “bottom-up” by resources (e.g., food), from the “top-down” by predation, or from parallel factors, such as interactions with conspecifics or heterospecifics. Amphibians ...
Comparative genomics reveal symbiont-host evolution of deep-sea tubeworms (Siboglinidae, Annelida) and wood-boring bivalves (Xylophagaidae, Mollusca)
(2017-07-22)
Chemosynthetic communities are patchily distributed in deep-sea ecosystems, including hydrothermal vents, methane seeps and whale, wood, and algal falls. Unlike abyssal seafloor communities that suffer from food limitation ...
The Effect of Incubation Temperature on Sex and Morphology in the African Redhead Agama (Agama picticauda)
(2017-11-30)
The first demonstration of temperature-dependent sex determination (TSD) in a vertebrate was in the African redhead agama (Agama agama) nearly 50 years ago. The original study was generally overlooked until it was later ...
Mechanisms and Evolution of Disease Resistance in Birds
(2017-01-04)
Disease outbreaks in wildlife, agricultural animals, and humans have increased in both frequency and magnitude in recent decades, refocusing research efforts on understanding the factors that influence disease emergence. ...