Mating System of a Neotropical Roost-Making Bat: The White-Throated, Round-Eared Bat, Lophostoma silvicolum (Chiroptera: Phyllostomidae)
The vast majority of bats strongly depend on, but do not make, shelters or roosts. We investigated Lophostoma silvicolum, which roosts in active termite nests excavated by the bats themselves, to study the relationship between roost choice and mating systems. Due to the hardness of the termite nests...
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| Veröffentlicht in: | Behavioral ecology and sociobiology 2005-07, Vol.58 (3), p.316-325 |
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| creator | Dechmann, D. K. N. Kalko, E. K. V. König, B. Kerth, G. |
| description | The vast majority of bats strongly depend on, but do not make, shelters or roosts. We investigated Lophostoma silvicolum, which roosts in active termite nests excavated by the bats themselves, to study the relationship between roost choice and mating systems. Due to the hardness of the termite nests, roost-making is probably costly in terms of time and energy for these bats. Video-observations and capture data showed that single males excavate nests. Only males in good physical condition attracted females to the resulting roosts. Almost all groups captured from excavated nests were single male-multifemale associations, suggesting a harem structure. Paternity assignments based on ten polymorphic microsatellites, revealed a high reproductive success of 46% by nest-holding males. We suggest that the mating system of L. silvicolum is based on a resource-defense polygyny. The temperatures in the excavated nests are warm and stable, and might provide a suitable shelter for reproductive females. Reproductive success achieved by harem males appears to justify the time and effort required to excavate the nests. Reproductive success may thus have selected on an external male phenotype, the excavated nests, and have contributed to the evolution of an otherwise rare behavior in bats. |
| doi_str_mv | 10.1007/s00265-005-0913-y |
| format | Article |
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K. N. ; Kalko, E. K. V. ; König, B. ; Kerth, G.</creator><creatorcontrib>Dechmann, D. K. N. ; Kalko, E. K. V. ; König, B. ; Kerth, G.</creatorcontrib><description>The vast majority of bats strongly depend on, but do not make, shelters or roosts. We investigated Lophostoma silvicolum, which roosts in active termite nests excavated by the bats themselves, to study the relationship between roost choice and mating systems. Due to the hardness of the termite nests, roost-making is probably costly in terms of time and energy for these bats. Video-observations and capture data showed that single males excavate nests. Only males in good physical condition attracted females to the resulting roosts. Almost all groups captured from excavated nests were single male-multifemale associations, suggesting a harem structure. Paternity assignments based on ten polymorphic microsatellites, revealed a high reproductive success of 46% by nest-holding males. We suggest that the mating system of L. silvicolum is based on a resource-defense polygyny. The temperatures in the excavated nests are warm and stable, and might provide a suitable shelter for reproductive females. Reproductive success achieved by harem males appears to justify the time and effort required to excavate the nests. Reproductive success may thus have selected on an external male phenotype, the excavated nests, and have contributed to the evolution of an otherwise rare behavior in bats.</description><identifier>ISSN: 0340-5443</identifier><identifier>EISSN: 1432-0762</identifier><identifier>DOI: 10.1007/s00265-005-0913-y</identifier><identifier>CODEN: BESOD6</identifier><language>eng</language><publisher>Heidelberg: Springer-Verlag</publisher><subject>Animal behavior ; Animal ethology ; Animal nesting ; Animal populations ; Animal reproduction ; Bats ; Biological and medical sciences ; Bird nesting ; Chiroptera ; Female animals ; Females ; Fundamental and applied biological sciences. Psychology ; Lophostoma silvicolum ; Male animals ; Males ; Mammalia ; Mating behavior ; Phyllostomidae ; Psychology. Psychoanalysis. 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K. N.</creatorcontrib><creatorcontrib>Kalko, E. K. V.</creatorcontrib><creatorcontrib>König, B.</creatorcontrib><creatorcontrib>Kerth, G.</creatorcontrib><title>Mating System of a Neotropical Roost-Making Bat: The White-Throated, Round-Eared Bat, Lophostoma silvicolum (Chiroptera: Phyllostomidae)</title><title>Behavioral ecology and sociobiology</title><description>The vast majority of bats strongly depend on, but do not make, shelters or roosts. We investigated Lophostoma silvicolum, which roosts in active termite nests excavated by the bats themselves, to study the relationship between roost choice and mating systems. Due to the hardness of the termite nests, roost-making is probably costly in terms of time and energy for these bats. Video-observations and capture data showed that single males excavate nests. Only males in good physical condition attracted females to the resulting roosts. Almost all groups captured from excavated nests were single male-multifemale associations, suggesting a harem structure. Paternity assignments based on ten polymorphic microsatellites, revealed a high reproductive success of 46% by nest-holding males. We suggest that the mating system of L. silvicolum is based on a resource-defense polygyny. The temperatures in the excavated nests are warm and stable, and might provide a suitable shelter for reproductive females. Reproductive success achieved by harem males appears to justify the time and effort required to excavate the nests. Reproductive success may thus have selected on an external male phenotype, the excavated nests, and have contributed to the evolution of an otherwise rare behavior in bats.</description><subject>Animal behavior</subject><subject>Animal ethology</subject><subject>Animal nesting</subject><subject>Animal populations</subject><subject>Animal reproduction</subject><subject>Bats</subject><subject>Biological and medical sciences</subject><subject>Bird nesting</subject><subject>Chiroptera</subject><subject>Female animals</subject><subject>Females</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Lophostoma silvicolum</subject><subject>Male animals</subject><subject>Males</subject><subject>Mammalia</subject><subject>Mating behavior</subject><subject>Phyllostomidae</subject><subject>Psychology. Psychoanalysis. 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K. N.</au><au>Kalko, E. K. V.</au><au>König, B.</au><au>Kerth, G.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Mating System of a Neotropical Roost-Making Bat: The White-Throated, Round-Eared Bat, Lophostoma silvicolum (Chiroptera: Phyllostomidae)</atitle><jtitle>Behavioral ecology and sociobiology</jtitle><date>2005-07-01</date><risdate>2005</risdate><volume>58</volume><issue>3</issue><spage>316</spage><epage>325</epage><pages>316-325</pages><issn>0340-5443</issn><eissn>1432-0762</eissn><coden>BESOD6</coden><abstract>The vast majority of bats strongly depend on, but do not make, shelters or roosts. We investigated Lophostoma silvicolum, which roosts in active termite nests excavated by the bats themselves, to study the relationship between roost choice and mating systems. Due to the hardness of the termite nests, roost-making is probably costly in terms of time and energy for these bats. Video-observations and capture data showed that single males excavate nests. Only males in good physical condition attracted females to the resulting roosts. Almost all groups captured from excavated nests were single male-multifemale associations, suggesting a harem structure. Paternity assignments based on ten polymorphic microsatellites, revealed a high reproductive success of 46% by nest-holding males. We suggest that the mating system of L. silvicolum is based on a resource-defense polygyny. The temperatures in the excavated nests are warm and stable, and might provide a suitable shelter for reproductive females. Reproductive success achieved by harem males appears to justify the time and effort required to excavate the nests. Reproductive success may thus have selected on an external male phenotype, the excavated nests, and have contributed to the evolution of an otherwise rare behavior in bats.</abstract><cop>Heidelberg</cop><cop>Berlin</cop><pub>Springer-Verlag</pub><doi>10.1007/s00265-005-0913-y</doi><tpages>10</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Behavioral ecology and sociobiology, 2005-07, Vol.58 (3), p.316-325 |
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| subjects | Animal behavior Animal ethology Animal nesting Animal populations Animal reproduction Bats Biological and medical sciences Bird nesting Chiroptera Female animals Females Fundamental and applied biological sciences. Psychology Lophostoma silvicolum Male animals Males Mammalia Mating behavior Phyllostomidae Psychology. Psychoanalysis. Psychiatry Pups Reproduction Reproductive success Termites Vertebrata |
| title | Mating System of a Neotropical Roost-Making Bat: The White-Throated, Round-Eared Bat, Lophostoma silvicolum (Chiroptera: Phyllostomidae) |
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