The British Herpetological Society

The Herpetological Journal is the Society's prestigious quarterly scientific journal. Articles are listed in Biological Abstracts, Current Awareness in Biological Sciences,Current Contents, Science Citation Index, and Zoological Record.

The 2017/18  impact factor of The Herpetological Journal is 1.268

ISSN 0268-0130


pdf 07. Feeding ecology of Ameiva ameiva in a caatinga area of northeastern Brazil

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pp. 199-207
Authors: Sales, Raul F.D.; Ribeiro, Leonardo B. & Freire, Eliza M.X.

Abstract: We studied the feeding ecology of the neotropical lizard Ameiva ameiva in a semiarid area in the state of Rio Grande do Norte, Brazil. The main food items ingested were insect larvae and pupae, gastropods, beetles, spiders, roaches and orthopterans. The population specialized more in the consumption of larvae and pupae in the rainy season, and consumed different types of prey more evenly in the dry season. The population niche width in the rainy season was narrower, due largely to a lower degree of individual specialization, despite individual niche widths that did not differ significantly between seasons. Individual specialization was stronger in the dry season, causing an expansion in the population niche width. Sexual differences in diet were small, despite sexual dimorphism in body size. Maximum, average and range of prey sizes were positively correlated with lizard body size, but minimum prey size remained constant, resulting in a positive relationship between body size and individual niche width. Despite differences between adult and juvenile lizards in maximum and average prey sizes, the fact that adults continue to feed on small prey suggests that there may be competition for food resources between age classes.

Keywords: SQUAMATA, LIZARD ECOLOGY, SEASONALITY, INDIVIDUAL SPECIALIZATION, OPTIMAL FORAGING, DIET, TEIIDAE, SEMIARID

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IMPORTANT NOTE - JUNE 2020

Please note that as from Volume 31 Number 1 (January 2021) on, the Herpetological Journal will be available as an online publication only - the last print edition will be Volume 30 Number 4.   

Aligning with this change, it is now no longer possible to purchase a subscription that includes a print copy of the HJ.  All members who have existing HJ print subscriptions that remain active as at end June 2020 will receive the full four 2020 print editions.  New subscribers or renewals after this time will only have option to subscribe to the online only subscription package.  Subscription pricing has been amended to reflect the content changes.