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Ancestral state reconstructions require biological evidence to test evolutionary hypotheses: a case study examining the evolution of reproductive mode in squamate …
To understand evolutionary transformations it is necessary to identify the character states of
extinct ancestors. Ancestral character state reconstruction is inherently difficult because it …
extinct ancestors. Ancestral character state reconstruction is inherently difficult because it …
Functional and numerical responses of predators: where do vipers fit in the traditional paradigms?
Snakes typically are not considered top carnivores, yet in many ecosystems they are a major
predatory influence. A literature search confirmed that terrestrial ectotherms such as snakes …
predatory influence. A literature search confirmed that terrestrial ectotherms such as snakes …
Mechanisms underlying the costs of egg production
TD Williams - Bioscience, 2005 - academic.oup.com
Female birds incur costs associated with increased egg production, including reductions in
chick provisioning ability, in future fecundity, in survival, and in egg and chick viability. It …
chick provisioning ability, in future fecundity, in survival, and in egg and chick viability. It …
Climate affects embryonic development in a viviparous snake, Vipera aspis
Climatic conditions during embryonic development can exert profound and long‐term effects
on many types of organisms, but most previous research on this topic has focussed on …
on many types of organisms, but most previous research on this topic has focussed on …
Dietary effects on gut microbiota of the mesquite lizard Sceloporus grammicus (Wiegmann, 1828) across different altitudes
Background High-altitude ecosystems are extreme environments that generate specific
physiological, morphological, and behavioral adaptations in ectotherms. The shifts in gut …
physiological, morphological, and behavioral adaptations in ectotherms. The shifts in gut …
Cold climate specialization: adaptive covariation between metabolic rate and thermoregulation in pregnant vipers
We compared thermoregulatory strategies during pregnancy in two congeneric viperid
snakes (Vipera berus and Vipera aspis) with parapatric geographic ranges. V. berus is a …
snakes (Vipera berus and Vipera aspis) with parapatric geographic ranges. V. berus is a …
Hydric “Costs” of Reproduction: Pregnancy Increases Evaporative Water Loss in the Snake Vipera aspis
Water constraints can mediate evolutionary conflict either among individuals (eg, parent-
offspring conflict, sexual conflict) or within an individual (eg, cost of reproduction). During …
offspring conflict, sexual conflict) or within an individual (eg, cost of reproduction). During …
Viviparity and placentation in snakes
Viviparity in snakes has been a source of fascination since ancient times and is a particular
focus of biological interest today. Questions about how viviparity is accomplished and how …
focus of biological interest today. Questions about how viviparity is accomplished and how …
Ecological effects of climate change on European reptiles
The destruction and fragmentation of habitats, overexploitation of natural resources, and
invasion of pest species have resulted in worldwide declines of many animal and plant …
invasion of pest species have resulted in worldwide declines of many animal and plant …
Physiological state influences evaporative water loss and microclimate preference in the snake Vipera aspis
Animals typically respond to environmental variation by adjusting their physiology, behavior,
or both. Ectothermic animals are particularly sensitive to microclimatic conditions and …
or both. Ectothermic animals are particularly sensitive to microclimatic conditions and …