Roosting Ecology of the Northern Bat (Myotis septentrionalis) and Comparisons with the Endangered Indiana Bat (Myotis sodalis)
| Autor: | Rodney Foster, Allen Kurta |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
Sodalis
food.ingredient Ecology biology Endangered species Ulmus americana biology.organism_classification Northern long-eared bat Fraxinus pennsylvanica Myotis septentrionalis food Aceraceae Genetics Animal Science and Zoology Ecology Evolution Behavior and Systematics Nature and Landscape Conservation Indiana bat |
| Zdroj: | Journal of Mammalogy. 80:659-672 |
| ISSN: | 0022-2372 1545-1542 |
| DOI: | 10.2307/1383310 |
| Popis: | During 1993 and 1994, we radiotracked 11 adult female and juvenile northern bats ( Myotis septentrionalis ) to 32 roost trees: 18 silver maples ( Acer saccharinum ), 1 red maple (A. rubrum ), and 13 green ashes ( Fraxinus pennsylvanica ). Fifty-three percent of the trees were living; 52% of the roosts were in crevices or hollows, and the rest were under exfoliating bark. Northern bats did not use American elms ( Ulmus americana ) in proportion to their abundance, but in general, characteristics of roost trees were similar to a random sample of apparently suitable trees. Northern bats changed roosts every 2 days, and distance between roosts varied from 6 to 2,000 m. As many as 60 adults were found in a single tree, making this the largest summer aggregation ever reported for the species. Compared with Indiana bats ( M. sodalis ) separately studied at the same site, northern bats moved greater distances between roosts and roosted more often in maples, cavities, living trees, and areas with high canopy cover. |
| Databáze: | OpenAIRE |
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