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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
25/03/1999 |
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Data da última atualização: |
25/03/1999 |
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Autoria: |
CHABRECK, R. H.; JOANEN, T. |
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Afiliação: |
School of Forestry and Wildlife Management, Louisiana State University, Batron Rouge, USA. |
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Título: |
Growth rates of American alligators in Louisiana. |
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Ano de publicação: |
1979 |
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Fonte/Imprenta: |
Herpetologica, v.35, n.1, p.51-57, 1979. |
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Idioma: |
Inglês |
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Conteúdo: |
A capture-recapture technique was used to determine growth rates of American alligators (Alligator mississippiensis) in Louisiana. A strong relationship was found between total lenght and both snout-vent lenght and weight. Comparisons between small alligators showed that growth rates of males and females are not different until animals attain a total lenght of 1.0 m, after which growth of females declines sharply. Growth rates during different periods of the year are greatest during mid-summer and less during the spring and fall; no growth occurs during winter (oct-Mar). A mathematical model indicates that males grow fairly rapidly for 20 years (until they are 3.50 m long) and that they reach a projected total lenght of 4.20 m at age 80. Growth of females declines consioderably after age 10, and indiciduals are only about 2.55 m long ate age 20. The maximum projected lenght of females is 2.73 m at age 45. |
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Palavras-Chave: |
Alligator; Growth; Reptile. |
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Thesagro: |
Crescimento; Jacaré; Réptil. |
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Thesaurus Nal: |
Louisiana. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01435naa a2200217 a 4500
001 1794754
005 1999-03-25
008 1979 bl --- 0-- u #d
100 1 $aCHABRECK, R. H.
245 $aGrowth rates of American alligators in Louisiana.
260 $c1979
520 $aA capture-recapture technique was used to determine growth rates of American alligators (Alligator mississippiensis) in Louisiana. A strong relationship was found between total lenght and both snout-vent lenght and weight. Comparisons between small alligators showed that growth rates of males and females are not different until animals attain a total lenght of 1.0 m, after which growth of females declines sharply. Growth rates during different periods of the year are greatest during mid-summer and less during the spring and fall; no growth occurs during winter (oct-Mar). A mathematical model indicates that males grow fairly rapidly for 20 years (until they are 3.50 m long) and that they reach a projected total lenght of 4.20 m at age 80. Growth of females declines consioderably after age 10, and indiciduals are only about 2.55 m long ate age 20. The maximum projected lenght of females is 2.73 m at age 45.
650 $aLouisiana
650 $aCrescimento
650 $aJacaré
650 $aRéptil
653 $aAlligator
653 $aGrowth
653 $aReptile
700 1 $aJOANEN, T.
773 $tHerpetologica$gv.35, n.1, p.51-57, 1979.
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Registro original: |
Embrapa Pantanal (CPAP) |
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