Do bigger bats need more time to forage?
We test the hypothesis is that bats using the same area and at the same time would be using similar preys, but they would have different foraging times due to specific differences in biomass. A total of 730 captures was analyzed 13 species of Vespertilionidae and Molossidae bats netted over a small...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Instituto Internacional de Ecologia
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| Series: | Brazilian Journal of Biology |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842008000400017&lng=en&tlng=en |
| _version_ | 1830483395837165568 |
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| author | CEL. Esbérard HG. Bergallo |
| author_facet | CEL. Esbérard HG. Bergallo |
| author_sort | CEL. Esbérard |
| collection | DOAJ |
| description | We test the hypothesis is that bats using the same area and at the same time would be using similar preys, but they would have different foraging times due to specific differences in biomass. A total of 730 captures was analyzed 13 species of Vespertilionidae and Molossidae bats netted over a small dam in southeastern Brazil from 1993 and 1999. The relationship between the average time of captures and the biomass of the species of Vespertilinidae and Molossidae most frequent (captures > 4) was positive and significant (r = 0.83, p = 0.022, N = 7). Two lines are discussed to answer the longer foraging time for bigger bats: 1) larger insectivorous bats don't consume proportionally larger preys and 2) larger insects are less available. |
| first_indexed | 2024-12-21T17:51:30Z |
| format | Article |
| id | doaj.art-0d01fc8b8a364d809ceabc1509fe92c0 |
| institution | Directory Open Access Journal |
| issn | 1678-4375 |
| language | English |
| last_indexed | 2024-12-21T17:51:30Z |
| publisher | Instituto Internacional de Ecologia |
| record_format | Article |
| series | Brazilian Journal of Biology |
| spelling | doaj.art-0d01fc8b8a364d809ceabc1509fe92c02022-12-21T18:55:20ZengInstituto Internacional de EcologiaBrazilian Journal of Biology1678-437568481982210.1590/S1519-69842008000400017S1519-69842008000400017Do bigger bats need more time to forage?CEL. Esbérard0HG. Bergallo1Universidade Federal Rural do Rio de JaneiroUniversidade do Estado do Rio de JaneiroWe test the hypothesis is that bats using the same area and at the same time would be using similar preys, but they would have different foraging times due to specific differences in biomass. A total of 730 captures was analyzed 13 species of Vespertilionidae and Molossidae bats netted over a small dam in southeastern Brazil from 1993 and 1999. The relationship between the average time of captures and the biomass of the species of Vespertilinidae and Molossidae most frequent (captures > 4) was positive and significant (r = 0.83, p = 0.022, N = 7). Two lines are discussed to answer the longer foraging time for bigger bats: 1) larger insectivorous bats don't consume proportionally larger preys and 2) larger insects are less available.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842008000400017&lng=en&tlng=enforaging timeinsectivorous batsfeeding strategiessoutheastern BrazilMolossidaeVespertilionidae |
| spellingShingle | CEL. Esbérard HG. Bergallo Do bigger bats need more time to forage? Brazilian Journal of Biology foraging time insectivorous bats feeding strategies southeastern Brazil Molossidae Vespertilionidae |
| title | Do bigger bats need more time to forage? |
| title_full | Do bigger bats need more time to forage? |
| title_fullStr | Do bigger bats need more time to forage? |
| title_full_unstemmed | Do bigger bats need more time to forage? |
| title_short | Do bigger bats need more time to forage? |
| title_sort | do bigger bats need more time to forage |
| topic | foraging time insectivorous bats feeding strategies southeastern Brazil Molossidae Vespertilionidae |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842008000400017&lng=en&tlng=en |
| work_keys_str_mv | AT celesberard dobiggerbatsneedmoretimetoforage AT hgbergallo dobiggerbatsneedmoretimetoforage |