Inter- and intraspecific variation in the Artibeus species complex demonstrates size and shape partitioning among species
被引:10
作者:
Hedrick, Brandon P.
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Louisiana State Univ, Cell Biol & Anat, Hlth Sci Ctr New Orleans, New Orleans, LA 70112 USALouisiana State Univ, Cell Biol & Anat, Hlth Sci Ctr New Orleans, New Orleans, LA 70112 USA
Hedrick, Brandon P.
[1
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机构:
[1] Louisiana State Univ, Cell Biol & Anat, Hlth Sci Ctr New Orleans, New Orleans, LA 70112 USA
Neotropical leaf-nosed bats (family Phyllostomidae) are one of the most diverse mammalian families and Artibeus spp. is one of the most speciose phyllostomid genera. In spite of their species diversity, previous work on Artibeus crania using linear morphometrics has uncovered limited interspecific variation. This dearth of shape variation suggests that differences in cranial morphology are not contributing to niche partitioning across species, many of which are often found in sympatry. Using two-dimensional geometric morphometric methods on crania from eleven species from the Artibeus species complex, the current study demonstrates substantial cranial interspecific variation, sexual size and shape dimorphism, and intraspecific geographic variation. The majority of species were shown to have a unique size and shape, which suggests that each species may be taking advantage of slightly different ecological resources. Further, both sexual size and shape dimorphism were significant in the Artibeus species complex. Male and female Artibeus are known to have sex specific foraging strategies, with males eating near their roosts and females feeding further from their roosts. The presence of cranial sexual dimorphism in the Artibeus species complex, combined with previous work showing that different fruit size and hardness is correlated with different cranial shapes in phyllostomids, indicates that the males and females may be utilizing different food resources, leading to divergent cranial morphotypes. Additional field studies will be required to confirm this emergent hypothesis. Finally, significant geographical shape variation was found in a large intraspecific sample of Artibeus lituratus crania. However, this variation was not correlated with latitude and instead may be linked to local environmental factors. Additional work on ecology and behavior in the Artibeus species complex underlying the morphological variation uncovered in this study will allow for a better understanding of how the group has reached its present diversity.
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Ctr Invest Biol Noroeste, Mar Bermejo 195, La Paz 23090, Baja California, MexicoCtr Invest Biol Noroeste, Mar Bermejo 195, La Paz 23090, Baja California, Mexico
Leyva-Valencia, Ignacio
Ticul Alvarez-Castaneda, Sergio
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Ctr Invest Biol Noroeste, Mar Bermejo 195, La Paz 23090, Baja California, MexicoCtr Invest Biol Noroeste, Mar Bermejo 195, La Paz 23090, Baja California, Mexico
Ticul Alvarez-Castaneda, Sergio
Lluch-Cota, Daniel B.
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Ctr Invest Biol Noroeste, Mar Bermejo 195, La Paz 23090, Baja California, MexicoCtr Invest Biol Noroeste, Mar Bermejo 195, La Paz 23090, Baja California, Mexico
Lluch-Cota, Daniel B.
Gonzalez-Pelaez, Sergio
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Ctr Invest Biol Noroeste, Mar Bermejo 195, La Paz 23090, Baja California, MexicoCtr Invest Biol Noroeste, Mar Bermejo 195, La Paz 23090, Baja California, Mexico
Gonzalez-Pelaez, Sergio
Perez-Valencia, Sergio
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Ctr Invest Biol Noroeste, Mar Bermejo 195, La Paz 23090, Baja California, Mexico
Ctr Intercultural Estudios Desiertos & Oceanos, Puerto Penasco 83550, Sonora, MexicoCtr Invest Biol Noroeste, Mar Bermejo 195, La Paz 23090, Baja California, Mexico
Perez-Valencia, Sergio
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Vadopalas, Brent
Ramirez-Perez, Saul
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Univ Autonoma Sinaloa, Fac Ciencias Mar, Mazatlan 82000, Sinaloa, MexicoCtr Invest Biol Noroeste, Mar Bermejo 195, La Paz 23090, Baja California, Mexico
Ramirez-Perez, Saul
Cruz-Hernandez, Pedro
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Ctr Invest Biol Noroeste, Mar Bermejo 195, La Paz 23090, Baja California, MexicoCtr Invest Biol Noroeste, Mar Bermejo 195, La Paz 23090, Baja California, Mexico
机构:
Univ Fed Rio Grande do Sul, Dept Zool, Programa Posgrad Biol Anim, Porto Alegre, RS, BrazilUniv Fed Rio Grande do Sul, Dept Zool, Programa Posgrad Biol Anim, Porto Alegre, RS, Brazil
Neves, Mayara P.
Da Silva, Jislaine C.
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Univ Maringa, Programa Posgrad Ecol Ambientes Aquat Continentai, Maringa, Parana, BrazilUniv Fed Rio Grande do Sul, Dept Zool, Programa Posgrad Biol Anim, Porto Alegre, RS, Brazil
Da Silva, Jislaine C.
Baumgartner, Dirceu
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Univ Estadual Oeste Parana, Programa Posgrad Ciencias Ambientais, Cascavel, Parana, BrazilUniv Fed Rio Grande do Sul, Dept Zool, Programa Posgrad Biol Anim, Porto Alegre, RS, Brazil
Baumgartner, Dirceu
Baumgartner, Gilmar
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Univ Estadual Oeste Parana, Programa Posgrad Recursos Pesqueiros & Engn Pesca, Cascavel, Parana, BrazilUniv Fed Rio Grande do Sul, Dept Zool, Programa Posgrad Biol Anim, Porto Alegre, RS, Brazil
Baumgartner, Gilmar
Delariva, Rosilene L.
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Univ Estadual Oeste Parana, Ctr Ciencias Biol & Saude, Programa Posgrad Conservacao & Manejo Recursos Na, Rua Univ 2069, Cascavel, Parana, BrazilUniv Fed Rio Grande do Sul, Dept Zool, Programa Posgrad Biol Anim, Porto Alegre, RS, Brazil
机构:
Ctr Invest Biol Noroeste, Mar Bermejo 195, La Paz 23090, Baja California, MexicoCtr Invest Biol Noroeste, Mar Bermejo 195, La Paz 23090, Baja California, Mexico
Leyva-Valencia, Ignacio
Ticul Alvarez-Castaneda, Sergio
论文数: 0引用数: 0
h-index: 0
机构:
Ctr Invest Biol Noroeste, Mar Bermejo 195, La Paz 23090, Baja California, MexicoCtr Invest Biol Noroeste, Mar Bermejo 195, La Paz 23090, Baja California, Mexico
Ticul Alvarez-Castaneda, Sergio
Lluch-Cota, Daniel B.
论文数: 0引用数: 0
h-index: 0
机构:
Ctr Invest Biol Noroeste, Mar Bermejo 195, La Paz 23090, Baja California, MexicoCtr Invest Biol Noroeste, Mar Bermejo 195, La Paz 23090, Baja California, Mexico
Lluch-Cota, Daniel B.
Gonzalez-Pelaez, Sergio
论文数: 0引用数: 0
h-index: 0
机构:
Ctr Invest Biol Noroeste, Mar Bermejo 195, La Paz 23090, Baja California, MexicoCtr Invest Biol Noroeste, Mar Bermejo 195, La Paz 23090, Baja California, Mexico
Gonzalez-Pelaez, Sergio
Perez-Valencia, Sergio
论文数: 0引用数: 0
h-index: 0
机构:
Ctr Invest Biol Noroeste, Mar Bermejo 195, La Paz 23090, Baja California, Mexico
Ctr Intercultural Estudios Desiertos & Oceanos, Puerto Penasco 83550, Sonora, MexicoCtr Invest Biol Noroeste, Mar Bermejo 195, La Paz 23090, Baja California, Mexico
Perez-Valencia, Sergio
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Vadopalas, Brent
Ramirez-Perez, Saul
论文数: 0引用数: 0
h-index: 0
机构:
Univ Autonoma Sinaloa, Fac Ciencias Mar, Mazatlan 82000, Sinaloa, MexicoCtr Invest Biol Noroeste, Mar Bermejo 195, La Paz 23090, Baja California, Mexico
Ramirez-Perez, Saul
Cruz-Hernandez, Pedro
论文数: 0引用数: 0
h-index: 0
机构:
Ctr Invest Biol Noroeste, Mar Bermejo 195, La Paz 23090, Baja California, MexicoCtr Invest Biol Noroeste, Mar Bermejo 195, La Paz 23090, Baja California, Mexico
机构:
Univ Fed Rio Grande do Sul, Dept Zool, Programa Posgrad Biol Anim, Porto Alegre, RS, BrazilUniv Fed Rio Grande do Sul, Dept Zool, Programa Posgrad Biol Anim, Porto Alegre, RS, Brazil
Neves, Mayara P.
Da Silva, Jislaine C.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Maringa, Programa Posgrad Ecol Ambientes Aquat Continentai, Maringa, Parana, BrazilUniv Fed Rio Grande do Sul, Dept Zool, Programa Posgrad Biol Anim, Porto Alegre, RS, Brazil
Da Silva, Jislaine C.
Baumgartner, Dirceu
论文数: 0引用数: 0
h-index: 0
机构:
Univ Estadual Oeste Parana, Programa Posgrad Ciencias Ambientais, Cascavel, Parana, BrazilUniv Fed Rio Grande do Sul, Dept Zool, Programa Posgrad Biol Anim, Porto Alegre, RS, Brazil
Baumgartner, Dirceu
Baumgartner, Gilmar
论文数: 0引用数: 0
h-index: 0
机构:
Univ Estadual Oeste Parana, Programa Posgrad Recursos Pesqueiros & Engn Pesca, Cascavel, Parana, BrazilUniv Fed Rio Grande do Sul, Dept Zool, Programa Posgrad Biol Anim, Porto Alegre, RS, Brazil
Baumgartner, Gilmar
Delariva, Rosilene L.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Estadual Oeste Parana, Ctr Ciencias Biol & Saude, Programa Posgrad Conservacao & Manejo Recursos Na, Rua Univ 2069, Cascavel, Parana, BrazilUniv Fed Rio Grande do Sul, Dept Zool, Programa Posgrad Biol Anim, Porto Alegre, RS, Brazil