Skip to main content
USGS - science for a changing world

Myrmecophagy by Yellowstone grizzly bears

Dates

Publication Date

Citation

Myrmecophagy by Yellowstone grizzly bears; 2001; Article; Journal; Canadian Journal of Zoology; Mattson, D. J.

Summary

I used data collected during a study of radio-marked grizzly bears (Ursus arctos horribilis) in the Yellowstone region from 1977 to 1992 to investigate myrmecophagy by this population. Although generally not an important source of energy for the bears (averaging <5% of fecal volume at peak consumption), ants may have been an important source of protein during midsummer and were heavily consumed during some years. Myrmecophagy was most common annually when known high-quality foods were scarce, as well as during the warmest months of the study, when regional average temperatures exceeded 12a??15A?C. Bears tended to select large ants (>8 mm long) nested in logs over small ants (6 mm long) nested under stones. Optimal conditions for consumption [...]

Contacts

Author :
D.J. Mattson

Attached Files

Click on title to download individual files attached to this item.

metadata8177927602837227801.xml
Potential Metadata Source

View
2.58 KB
Thumbnail
Thumbnail

Tags

Categories
Publication
Types

Provenance

Data source
Harvester
Harvested on Mon Jul 21 13:22:29 MDT 2014 from MODS XML Service

Additional Information

Identifiers

Type Scheme Key
local-index unknown 1016203
local-pk unknown 1016203
series unknown Canadian Journal of Zoology

Citation Extension

journalCanadian Journal of Zoology
parts
typevolume
value79
typeissue
value5
languageEnglish
citationTypeArticle

Item Actions

View Item as ...

Save Item as ...

View Item...