Raven food calls indicate sender’s age and sex
نویسندگان
چکیده
منابع مشابه
Hand Function Related to Age and Sex
Objectives: The purpose of this study was for evaluation of relationship between hand function and age, sex by Jebson Taylor Test.This study determined whether age might be a factor when associated with sex. Methods: In this study Jebson Taylor was evaluated on hand in 180 normal males and females (0.50% male, 0.50% female) in each of the following 7 subtest in 3 age groups: (15-25), (35-45)...
متن کاملCalling and Vigilance in California Ground Squirrels: Age, Sex and Seasonal Differences in Responses to Calls
Vigilance by California ground squirrels (Spermophilus beecheyi) following two kinds of naturally occurring "alarm" calls was examined. Chatters were usually singly emitted calls while repetitive calls were initiated by one or more chatters and continued with a variable, but long, series of "chats." During noncalling periods adults tended to be more vigilant than were pups (young of the year); ...
متن کاملIndividual, age and sex-specific information is contained in yellow-bellied marmot alarm calls
Individuals produce distinctive vocalizations that may contain considerable potential information about a signaller. Simply finding significant covariation between call structure and some individual attribute does not itself mean that there has been selection on callers to produce individually distinctive calls, nor on receivers to discriminate between them. Moreover, acoustic variation may deg...
متن کاملWho wants food? Individual characteristics in raven yells
Discriminating between different individuals is considered as prerequisite for any forms of social knowledge. In birds, discriminating between conspecifics based on individual characteristics has been tested mainly in the auditory domain with territorial calls and songs for neighbour and kin discrimination but little is known about discriminating between signallers in food calls. Ravens utilize...
متن کاملJohn Raven
John Raven is Boyd Baxter Professor of Biology at the University of Dundee. He studied botany at the University of Cambridge, and stayed on for a PhD in plant biophysics with an exceptionally insightful scientist and mentor, Professor Enid MacRobbie. His research at Dundee is centred on how organisms acquire and manipulate resources from their environment with particular emphasis on photosynthe...
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: Frontiers in Zoology
سال: 2018
ISSN: 1742-9994
DOI: 10.1186/s12983-018-0255-z