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No. de sistema: 000060468

LDR _ _ 00000nab^^22^^^^^za^4500
008 _ _ 200525m20209999xx^^r^p^o^^^^z0^^^a0eng^d
040 _ _ a| ECO
c| ECO
043 _ _ a| n-mx-yu
044 _ _ a| xx
245 0 0 a| Life history, activity pattern, and morphology of Crotalus tzabcan klauber, 1952 (Serpentes: Viperidae)
506 _ _ a| Disponible para usuarios de ECOSUR con su clave de acceso
520 1 _ a| The Tzabcan Rattlesnake (Crotalus tzabcan) is a highly secretive species that is difficult to observe and follow in the field and any information that can be generated is essential to gain a better understanding of its biology and ecology. Crotalus tzabcan is a large and heavy-bodied species, with a maximum snout-vent length of 1,667 mm and a total length of 1,818 mm. It is endemic to the Yucatán Peninsula, and very little is known about its natural history. We provide data on life history, activity, and morphology based on specimens that we obtained in recent field surveys, museums, and anecdotal observations. Crotalus tzabcan does not present sexual dimorphism in snout-vent length or total length, but males have heads and tails that are significantly longer than females. We observed an ontogenetic color change, where newborns and juveniles had a darker base color and blotches than adults. Crotalus tzabcan showed a unimodal activity pattern with peak activity in the summer. We observed crepuscular and nocturnal activity during the warmer months and diurnal activity during the cooler months. The timing of C. tzabcan reproductive events, based on behavioral evidence and activity, is similar to other pitvipers and rattlesnakes from temperate and tropical zones. We encourage additional research on behavior, physiology, histology, and on how environmental conditions influence life-history traits, to determine the reproductive cycle in both sexes more accurately, which could subsidize conservation strategies.
530 _ _ a| Disponible en línea
533 _ _ a| Reproducción electrónica en formato PDF
538 _ _ a| Adobe Acrobat profesional 6.0 o superior
650 _ 4 a| Crotalus tzabcan
650 _ 4 a| Serpientes
650 _ 4 a| Dimorfismo sexual en animales
650 _ 4 a| Ciclo sexual
650 _ 4 a| Factores ambientales
650 _ 4 a| Ontogenia
651 _ 4 a| Yucatán (Península) (México)
700 1 _ a| Carbajal Márquez, Rubén Alonso
e| autor
700 1 _ a| Cedeño-Vázquez, J.R.
c| Doctor
e| autor
700 1 _ a| Martins, Marcio
e| autor
700 1 _ a| Köhler, Gunther
e| autor
773 0 _
t| Herpetological Conservation and Biology
g| Volumen 15, número 1 (April 2020), p. 228–237
x| 1931-7603
900 _ _ a| Solicítelo con su bibliotecario/a
902 _ _ a| BG / MM
904 _ _ a| Mayo 2020
905 _ _ a| Artecosur
905 _ _ a| Biblioelectrónica
LNG eng
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*Solicítelo con su bibliotecario/a
Life history, activity pattern, and morphology of Crotalus tzabcan klauber, 1952 (Serpentes: Viperidae)
Carbajal Márquez, Rubén Alonso (autor)
Cedeño-Vázquez, J.R. (autor)
Martins, Marcio (autor)
Köhler, Gunther (autor)
Nota: Disponible en línea
Disponible para usuarios de ECOSUR con su clave de acceso
Contenido en: Herpetological Conservation and Biology. Volumen 15, número 1 (April 2020), p. 228–237. ISSN: 1931-7603
No. de sistema: 60468
Tipo: Artículo
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Inglés

"The Tzabcan Rattlesnake (Crotalus tzabcan) is a highly secretive species that is difficult to observe and follow in the field and any information that can be generated is essential to gain a better understanding of its biology and ecology. Crotalus tzabcan is a large and heavy-bodied species, with a maximum snout-vent length of 1,667 mm and a total length of 1,818 mm. It is endemic to the Yucatán Peninsula, and very little is known about its natural history. We provide data on life history, activity, and morphology based on specimens that we obtained in recent field surveys, museums, and anecdotal observations. Crotalus tzabcan does not present sexual dimorphism in snout-vent length or total length, but males have heads and tails that are significantly longer than females. We observed an ontogenetic color change, where newborns and juveniles had a darker base color and blotches than adults. Crotalus tzabcan showed a unimodal activity pattern with peak activity in the summer. We observed crepuscular and nocturnal activity during the warmer months and diurnal activity during the cooler months. The timing of C. tzabcan reproductive events, based on behavioral evidence and activity, is similar to other pitvipers and rattlesnakes from temperate and tropical zones. We encourage additional research on behavior, physiology, histology, and on how environmental conditions influence life-history traits, to determine the reproductive cycle in both sexes more accurately, which could subsidize conservation strategies."


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