Buscar
Mostrando ítems 21-30 de 72
Male group members are costly to plurally breeding Octodon degus females
(BRILL ACADEMIC PUBLISHERS, 2019)
We report the results of a 6-year study of social (number of adult males/females, relatedness of females, communal litter size) and ecological (mean/CV of food abundance, soil hardness, burrow openings) factors influencing ...
Burrow limitations and group living in the communally rearing rodent, Octodon degus
(ALLIANCE COMMUNICATIONS GROUP DIVISION ALLEN PRESS, 2011)
Group living is thought to evolve whenever individuals attain a net fitness advantage due to reduced predation risk or enhanced foraging efficiency, but also when individuals are forced to remain in groups, which often ...
Understanding the low breeding success in Greater Rheas populations through an energy budget model
(Elsevier Science, 2014-03)
We propose an individual-based energy budget model of the Greater Rhea (Rhea americana) with the purpose of analyzing the population's recruitment. One remarkable characteristic of this species is that female rheas lay ...
Mechanisms of social communication in caviomorph rodents
(Wiley Blackwell Publishing, Inc, 2016)
The rodent suborder Caviomorpha comprises species with a diversity of social systems ranging from solitary to social species, including species with communal care of offspring (Ebensperger 2001; Chapters 2 and 7 in this ...
Sociality, glucocorticoids and direct fitness in the communally rearing rodent, Octodon degus
(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2011)
While ecological causes of sociality (or group living) have been identified, proximate mechanisms remain less clear. Recently, close connections between sociality, glucocorticoid hormones (cart) and fitness have been ...
Socioecological conditions predict degu social instability and provide limited cues to forecast subsequent breeding conditions
(SPRINGER, 2021-05)
Permanent changes in group membership may result in detrimental fitness effects on both group residents and immigrants. Factors associated with this form of social instability are rarely documented. We used a 15-year dataset ...