Autumn Food Habits and Home-Range Elevations of Japanese Black Bears in Relation to Hard Mast Production in the Beech Family in Toyama Prefecture

Autor:	Yusuke Goto, Chika Nagai, Isao Arimoto, Kengo Furubayashi
Rok vydání:	2011
Předmět:	biology Ecology Home range Fagus crenata Beech family Food habits Diospyros kaki Animal Science and Zoology Ursus thibetanus japonicus Mast (botany) biology.organism_classification Fagaceae
Zdroj:	Mammal Study. 36:199-208
ISSN:	1348-6160 1343-4152
DOI:	10.3106/041.036.0403
Popis:	We examined food habits and home-range elevations of Japanese black bears (Ursus thibetanus japonicus) in relation to Fagaceae mast production in Toyama Prefecture. Nine bears (four males and five females) fitted with GPS collars were tracked for various periods from July to December in 2005–2007. We investigated the food habits of each bear using traces found at GPS-fix locations. Bears selectively fed on Fagus crenata mast when F. crenata and Quercus crispula mast was abundant and consumed Q. crispula and Q. serrata mast when F. crenata mast was scarce. When both F. crenata and Q. crispula mast was scarce, bears fed on multiple alternatives, such as Diospyros kaki. Home-range elevations of bears also differed among years in response to vertical distributions of available foods. Individual bears captured in the Q. serrata zone (lower elevation) and F. crenata zone (higher elevation) tended to eat Q. serrata and Q. crispula acorns, respectively, when F. crenata mast was not available. Therefore,...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::06483f78b0866c98a73babf3b457bc7f https://doi.org/10.3106/041.036.0403 Zobrazit plný text záznamu