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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pantanal. Para informações adicionais entre em contato com cpap.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
27/03/1996 |
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Data da última atualização: |
05/04/2017 |
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Autoria: |
MOURAO, G. de M.; BAYLISS, P.; COUTINHO, M. E.; ABERCOMBRIE, C. L.; ARRUDA, A. |
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Afiliação: |
EMBRAPA. Centro de Pesquisa Agropecuaria do Pantanal (Corumba, MS); INPA. Departamento de Ecologia (Manaus, AM); Wofford College (Spartanburg, SC); FEMA-MT. Centro Politico Administrativo (Cuiaba, MT). |
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Título: |
Test an aerial survey for caiman and other wildlife in the Pantanal, Brazil. |
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Ano de publicação: |
1994 |
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Fonte/Imprenta: |
Wildlife Society Bulletin, v.22, p.50-56, 1994. |
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Idioma: |
Inglês |
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Conteúdo: |
We assessed the feasibility of standardized fixed-wing aerial survey to monitor the distribution and abundance of caiman in the Pantanal, anextensive wetland in South America. Twelve other species were surveyed simultaneously. Caiman, cattle, and capybara occurred at high densities: on average their combined counts were 93% of the total. The remaining species were uncommon or are. More caiman, cattle, and capybara were observed in afternoons than in mornings. We used a modified markrecapture method to estimate visibility bias of caimans counted during aerial surveys. Caimans were captured, painted, released, then "recaptured" visually from an ultralight aircraft. On average, 26% of caimans were seen in open habitats and 2% were observed in a heavily vegetated pond. A correction factor was dirived from that sighting fraction to improve the accuracy of counts of caimans in open habitats during aerial surveys over large areas. Aerial survey is a cost-effective method for monitoring the density of caimans in the Pantanal and, simultaneously, for obtaining information on the distribuition and relative abundance of other important wildlife species amenable to aerial survey. |
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Palavras-Chave: |
Aerial survey; Animal silvestre; Capybara; Censo aereo; Savage animal. |
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Thesagro: |
Capivara; Fauna; Jacaré; População. |
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Thesaurus NAL: |
Caiman; Pantanal; population; wildlife. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02003naa a2200325 a 4500
001 1788024
005 2017-04-05
008 1994 bl --- 0-- u #d
100 1 $aMOURAO, G. de M.
245 $aTest an aerial survey for caiman and other wildlife in the Pantanal, Brazil.
260 $c1994
520 $aWe assessed the feasibility of standardized fixed-wing aerial survey to monitor the distribution and abundance of caiman in the Pantanal, anextensive wetland in South America. Twelve other species were surveyed simultaneously. Caiman, cattle, and capybara occurred at high densities: on average their combined counts were 93% of the total. The remaining species were uncommon or are. More caiman, cattle, and capybara were observed in afternoons than in mornings. We used a modified markrecapture method to estimate visibility bias of caimans counted during aerial surveys. Caimans were captured, painted, released, then "recaptured" visually from an ultralight aircraft. On average, 26% of caimans were seen in open habitats and 2% were observed in a heavily vegetated pond. A correction factor was dirived from that sighting fraction to improve the accuracy of counts of caimans in open habitats during aerial surveys over large areas. Aerial survey is a cost-effective method for monitoring the density of caimans in the Pantanal and, simultaneously, for obtaining information on the distribuition and relative abundance of other important wildlife species amenable to aerial survey.
650 $aCaiman
650 $aPantanal
650 $apopulation
650 $awildlife
650 $aCapivara
650 $aFauna
650 $aJacaré
650 $aPopulação
653 $aAerial survey
653 $aAnimal silvestre
653 $aCapybara
653 $aCenso aereo
653 $aSavage animal
700 1 $aBAYLISS, P.
700 1 $aCOUTINHO, M. E.
700 1 $aABERCOMBRIE, C. L.
700 1 $aARRUDA, A.
773 $tWildlife Society Bulletin$gv.22, p.50-56, 1994.
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Embrapa Pantanal (CPAP) |
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