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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
21/11/2002 |
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Data da última atualização: |
13/03/2017 |
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Autoria: |
WILLIG, M. R.; PRESLEY, S. J.; OWEN, R. D.; LÓPEZ-GONZÁLEZ, C. |
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Afiliação: |
Department of Biological Sciences and Museum of Texas Tech University (Lubbock, TX); University of California (Santa Barbara, CA). |
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Título: |
Composition and structure of bat assemblages in Paraguay: a subtropical-temperature interface. |
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Ano de publicação: |
2000 |
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Fonte/Imprenta: |
Journal of Mammalogy, Lawrence, v.81, n.2, p.386-401, 2000. |
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Idioma: |
Inglês |
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Conteúdo: |
Little is known about geographic variation in the local composition of South American assemblages of mammals or the factors that may produce such variation. This is particularly unfortunate in Paraguay because it occurs at the interface of a number of phytogeographic regions (e.g., Cerrado, Chaco, Interior Atlantic Rainforest, and Pantanal) and is the point at which many temperate species reach their northern limits or at which tropical species reach their southern limits. Based on 2 years of intensive fieldwork, we documented the species and familial composition of bat assemblages at 25 sites throughout the country. We also estimated similarity among sites based on indices sensitive to presence or absence of species (Ochiai's index), to rank abundance of species (rank correlation index), or to relative abundance of species (Euclidean index). Geographic distance between sites accounted for little variation in composition based on presence-absence or rank abundances of species but accounted significantly for variation related to both identity and relative frequency of species. Distinct assemblages of species do not correspond to the 7 distinct biomes of the country; rather, strong differences exist between sites east (mesic) and west (xeric) of the Rio Paraguay. For the most part, these differences are related to dominance by molossids (e.g., Eumops patagonicus, Molossops temminckii, and Molossus molossus) and verpertilionids (e.g., Lasiurus ega, Myotis albescens, and M. nigricans) in dry regions versus phyllostomids (e.g., Artibeus fimbriatus, A. lituratus, and Sturnira lilium) in mesic regions. As a consequence, clasification of sites into 2 broad biogeographic regions based on bat familial composition generally is concordant with that based on plants. MenosLittle is known about geographic variation in the local composition of South American assemblages of mammals or the factors that may produce such variation. This is particularly unfortunate in Paraguay because it occurs at the interface of a number of phytogeographic regions (e.g., Cerrado, Chaco, Interior Atlantic Rainforest, and Pantanal) and is the point at which many temperate species reach their northern limits or at which tropical species reach their southern limits. Based on 2 years of intensive fieldwork, we documented the species and familial composition of bat assemblages at 25 sites throughout the country. We also estimated similarity among sites based on indices sensitive to presence or absence of species (Ochiai's index), to rank abundance of species (rank correlation index), or to relative abundance of species (Euclidean index). Geographic distance between sites accounted for little variation in composition based on presence-absence or rank abundances of species but accounted significantly for variation related to both identity and relative frequency of species. Distinct assemblages of species do not correspond to the 7 distinct biomes of the country; rather, strong differences exist between sites east (mesic) and west (xeric) of the Rio Paraguay. For the most part, these differences are related to dominance by molossids (e.g., Eumops patagonicus, Molossops temminckii, and Molossus molossus) and verpertilionids (e.g., Lasiurus ega, Myotis albescens, and M. nigr... Mostrar Tudo |
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Palavras-Chave: |
América do Sul; Chaco; Specie composition. |
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Thesagro: |
Biogeografia; Conservação. |
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Thesaurus Nal: |
biogeography; Chiroptera; Molossidae; Paraguay; Phyllostomidae; South America; Vespertilionidae. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02606naa a2200301 a 4500
001 1790451
005 2017-03-13
008 2000 bl --- 0-- u #d
100 1 $aWILLIG, M. R.
245 $aComposition and structure of bat assemblages in Paraguay$ba subtropical-temperature interface.
260 $c2000
520 $aLittle is known about geographic variation in the local composition of South American assemblages of mammals or the factors that may produce such variation. This is particularly unfortunate in Paraguay because it occurs at the interface of a number of phytogeographic regions (e.g., Cerrado, Chaco, Interior Atlantic Rainforest, and Pantanal) and is the point at which many temperate species reach their northern limits or at which tropical species reach their southern limits. Based on 2 years of intensive fieldwork, we documented the species and familial composition of bat assemblages at 25 sites throughout the country. We also estimated similarity among sites based on indices sensitive to presence or absence of species (Ochiai's index), to rank abundance of species (rank correlation index), or to relative abundance of species (Euclidean index). Geographic distance between sites accounted for little variation in composition based on presence-absence or rank abundances of species but accounted significantly for variation related to both identity and relative frequency of species. Distinct assemblages of species do not correspond to the 7 distinct biomes of the country; rather, strong differences exist between sites east (mesic) and west (xeric) of the Rio Paraguay. For the most part, these differences are related to dominance by molossids (e.g., Eumops patagonicus, Molossops temminckii, and Molossus molossus) and verpertilionids (e.g., Lasiurus ega, Myotis albescens, and M. nigricans) in dry regions versus phyllostomids (e.g., Artibeus fimbriatus, A. lituratus, and Sturnira lilium) in mesic regions. As a consequence, clasification of sites into 2 broad biogeographic regions based on bat familial composition generally is concordant with that based on plants.
650 $abiogeography
650 $aChiroptera
650 $aMolossidae
650 $aParaguay
650 $aPhyllostomidae
650 $aSouth America
650 $aVespertilionidae
650 $aBiogeografia
650 $aConservação
653 $aAmérica do Sul
653 $aChaco
653 $aSpecie composition
700 1 $aPRESLEY, S. J.
700 1 $aOWEN, R. D.
700 1 $aLÓPEZ-GONZÁLEZ, C.
773 $tJournal of Mammalogy, Lawrence$gv.81, n.2, p.386-401, 2000.
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Registro original: |
Embrapa Pantanal (CPAP) |
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| 1. |  | REIS, C. O. dos; MAGALHAES, P. C.; AVILA, R. G.; ALMEIDA, L. G.; RABELO, V. M.; CARVALHO, D. T.; CABRAL, D. F.; KARAM, D.; SOUZA, T. C. de. Action of N-succinyl and N,O-dicarboxymethyl chitosan derivatives on chlorophyll photosynthesis and fluorescence in drought-sensitive maize. Journal of Plant Growth Regulation, v. 38, p. 619-630, 2019.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
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