Predator-driven natural selection on risk-taking behavior in anole lizards
نویسندگان
چکیده
منابع مشابه
Relationships among reproductive morphology, behavior, and testosterone in a natural population of green anole lizards.
Laboratory studies of reproductive systems have long supported the idea that neural and/or muscular structures used frequently are often enhanced in size. However, field studies integrating behavioral, morphological, and hormonal data are needed to better understand relationships in natural environments. We examined a natural population of green anole lizards (Anolis carolinensis) to determine ...
متن کاملEstradiol facilitates mounting behavior in male green anole lizards.
Steroid hormones activate sexual behaviors across vertebrate species. In green anole lizards, testosterone is particularly important for the display of courtship and copulation by adult males. However, unlike a variety of other species, the role of its metabolite, estradiol, has been unclear. To evaluate its function and potential interaction with testosterone in the facilitation of reproductiv...
متن کاملRapid temporal reversal in predator-driven natural selection.
As the environment changes, will species be able to adapt? By conducting experiments in natural environments, biologists can study how evolutionary processes such as natural selection operate through time. We predicted that the introduction of a terrestrial predator would first select for longer-legged lizards, which are faster, but as the lizards shifted onto high twigs to avoid the predator, ...
متن کاملTITLE: Effects of Gene Methylation on Behavior in Green Anole Lizards (Anolis carolinensis)
There is one aim for this research with two experiments. Experiment one determines if blocking gene methylation increase or decrease the probability of a male becoming dominant, while experiment two examined whether enhancing gene methylation at the first social encounter affects the possibility of dominance or subordinance. For experiment one, 18 male lizards were matched according to size and...
متن کاملImpact of Financial Characteristics on Future Corporate Risk-Taking Behavior
Organizational risk is often defined as a change in the flow of profit, or as a sys-tematic or non-systematic changes in the stock return flow. The risk taking of management is conceptualized as the actual investment decisions that are indictors due to uncertainty results. The purpose of this study is to investigate the effect of financial characteristics on future corporate risk taking behavio...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Science
سال: 2018
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.aap9289