Hunting promotes spatial reorganization and sexually selected infanticide
نویسندگان
چکیده
منابع مشابه
Hunting promotes spatial reorganization and sexually selected infanticide
Harvest can affect the ecology and evolution of wild species. The removal of key individuals, such as matriarchs or dominant males, can disrupt social structure and exacerbate the impact of hunting on population growth. We do not know, however, how and when the spatiotemporal reorganization takes place after removal and if such changes can be the mechanism that explain a decrease in population ...
متن کاملSexually Selected Infanticide in a Polygynous Bat
BACKGROUND Adult individuals of many species kill unrelated conspecific infants for several adaptive reasons ranging from predation or resource competition to the prevention of misdirected parental care. Moreover, infanticide can increase the reproductive success of the aggressor by killing the offspring of competitors and thereafter mating with the victimized females. This sexually selected in...
متن کاملMating Strategies in Relation to Sexually Selected Infanticide in a Non-Social Carnivore: the Brown Bear
The concept of sexual selection, as first proposed by Darwin (1871), predicts that the fundamental reproductive asymmetries between males and females give rise to a conflict between sexes. Male reproductive success tends to be limited primarily by access to mates, whereas female reproductive success is usually limited by access to resources. Infanticide, the killing of dependent young by conspe...
متن کاملThe dilemma of female mate selection in the brown bear, a species with sexually selected infanticide.
Because of differential investment in gametes between sexes, females tend to be the more selective sex. Based on this concept, we investigate mate selection in a large carnivore: the brown bear (Ursus arctos). We hypothesize that, in this species with sexually selected infanticide (SSI), females may be faced with a dilemma: either select a high-quality partner based on phenotypic criteria, as s...
متن کاملSleep after spatial learning promotes covert reorganization of brain activity.
Sleep promotes the integration of recently acquired spatial memories into cerebral networks for the long term. In this study, we examined how sleep deprivation hinders this consolidation process. Using functional MRI, we mapped regional cerebral activity during place-finding navigation in a virtual town, immediately after learning and 3 days later, in subjects either allowed regular sleep (RS) ...
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: Scientific Reports
سال: 2017
ISSN: 2045-2322
DOI: 10.1038/srep45222