Competition over guarding in the Arabian babbler (Turdoides squamiceps), a cooperative breeder
نویسندگان
چکیده
منابع مشابه
Seasonal daily, daytime and night-time field metabolic rates in Arabian babblers (Turdoides squamiceps).
Arabian babblers (Turdoides squamiceps; mean adult body mass=72.5 g) inhabit extreme deserts of Israel. Previous studies have shown that their daily field metabolic rates are similar in winter and summer and that there is an increase during the breeding season. We hypothesized that the difference in seasonal daily field metabolic rate would be a consequence of differences in daytime metabolic r...
متن کاملThe sentinel behaviour of Arabian babbler floaters
The sentinel behaviour of 38 Arabian babbler adult floaters, who lived alone within a territory belonging to a foreign group, was studied and compared with their own sentinel behaviour in the past, when they were group members. All floaters acted as sentinels and uttered 'alarm calls'. This suggests that sentinel activity is due at least, in part, to selfish motives. Floaters sentinelled less t...
متن کاملA hierarchical analysis of incest avoidance in a cooperative breeder
Janis L. Dickinson,a Çağlar Akçay,b Elise Ferree,c and Caitlin Sternd aCornell Lab of Ornithology, 159 Sapsucker Woods Road, Ithaca, NY 14850, USA, bDepartment of Biological Sciences, Virginia Tech, Derring Hall, 1405 Perry Street, Blacksburg, VA 24061, USA, cKeck Science Department, Claremont-McKenna, Scripps and Pitzer Colleges, Keck Science Center, 925 North MMills Avenue, Claremont, CA 9171...
متن کاملGroup size adjustment to ecological demand in a cooperative breeder.
Environmental factors can determine which group size will maximize the fitness of group members. This is particularly important in cooperative breeders, where group members often serve different purposes. Experimental studies are yet lacking to check whether ecologically mediated need for help will change the propensity of dominant group members to accept immigrants. Here, we manipulated the pe...
متن کاملRepeatable and heritable behavioural variation in a wild cooperative breeder
Quantifying consistent differences in behaviour among individuals is vital to understanding the ecological and evolutionary significance of animal personality. To quantify personality, the phenotypic variation of a behavioural trait is partitioned to assess how it varies among individuals, which is also known as repeatability. If pedigree data are available, the phenotypic variation can then be...
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: F1000Research
سال: 2015
ISSN: 2046-1402
DOI: 10.12688/f1000research.6739.1