Food habits of Brazilian boid snakes: overview and new data, with special reference to Corallus hortulanus

dc.creatorPizzatto, L
dc.creatorMarques, OAV
dc.creatorFacure, K
dc.date2009
dc.date2014-11-18T06:04:51Z
dc.date2015-11-26T17:47:14Z
dc.date2014-11-18T06:04:51Z
dc.date2015-11-26T17:47:14Z
dc.date.accessioned2018-03-29T00:29:51Z
dc.date.available2018-03-29T00:29:51Z
dc.identifierAmphibia-reptilia. Brill Academic Publishers, v. 30, n. 4, n. 533, n. 544, 2009.
dc.identifier0173-5373
dc.identifierWOS:000271414900010
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/67382
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/67382
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/67382
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1288722
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionThis study examines the diet of eight boid snakes: Boa c. constrictor, Boa c. amarali, Corallus caninus, C. hortulanus, Epicrates cenchria, E. crassus, E. assisi and Eunectes murinus mainly by analyzing the gut contents of preserved museum specimens, and includes a literature review to present an overview of the diet of Brazilian boids. Mammals constitute the primary prey consumed by the majority of the species. Birds are also frequently consumed by C. hortulanus and Boa contrictor, and are the most important prey for B. c. amarali. Ectotherms (mostly lizards) were only consumed by immature snakes. Such prey is rarely consumed by B. c. amarali and not recorded for Epicrates and Eunectes species in our dissections. C. caninus is likely a mammal specialist and Epicrates prey on birds more opportunistically. The niche overlap index varied from 0.27-0.52 for species occurring in the same bioma and geographic range but it is possible this overlap is lower as most sympatric species explore different macrohabitat. C. hortulanus exhibited a significant relationship between prey size and predator head size; this relationship did not differ among mature and immature snakes. In comparison to immature individuals heavier adult snakes fed on heavier prey items however, the ratio between prey/predator mass decreased with increase in predator mass (or size). Most boids exploit diurnal and nocturnal preys, probably using both sit-and-wait and active tactics. They feed on the ground but boas and C. hortulanus and possibly E. cenchria also exploit arboreal prey.
dc.description30
dc.description4
dc.description533
dc.description544
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.languageen
dc.publisherBrill Academic Publishers
dc.publisherLeiden
dc.publisherHolanda
dc.relationAmphibia-reptilia
dc.relationAmphib. Reptil.
dc.rightsaberto
dc.sourceWeb of Science
dc.subjectBoidae
dc.subjectdiet
dc.subjectdietary niche
dc.subjectforaging strategies
dc.subjectprey items
dc.subjectprey size
dc.subjectPythons Morelia-spilota
dc.subjectSexual Size Dimorphism
dc.subjectStriped Swamp Snake
dc.subjectBoa-constrictor
dc.subjectDietary Habits
dc.subjectReproductive-biology
dc.subjectNatural-history
dc.subjectFeeding Ecology
dc.subjectRegina-alleni
dc.subjectPrey
dc.titleFood habits of Brazilian boid snakes: overview and new data, with special reference to Corallus hortulanus
dc.typeArtículos de revistas


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