Feeding ecology of the lizard Tropidurus oreadicus Rodrigues 1987 (Tropiduridae) at Serra dos Carajás, Pará state, northern Brazil

Rocha, Carlos Frederico Duarte; Siqueira, Carla C.

doi:10.1590/s1519-69842008000100015

Cited by 13 publications

(16 citation statements)

References 18 publications

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“…However, in some species, this relationship is not apparent as in the teiid Cnemidophorus deepii (Vitt et al 1993) and the tropidurid Tropidurus oreadicus (Rocha & Siqueira 2008), similar to results reported here for A. edracantha in northwestern dry forests.…”

Section: Discussionsupporting

confidence: 88%

Nota sobre la dieta de Ameiva edracantha (Squamata, Teiidae) en el Parque Nacional Cerros de Amotape, Tumbes, Perú

Jordán

Amaya

2011

Rev peru biol

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The diet of Ameiva edracantha Bocourt 1874, a terrestrial diurnal teiid lizard distributed in northwestern Peru and southwestern Ecuador is described for the first time. Stomach contents of fifteen individuals collected from quebrada La Angostura were analyzed. Lepidopteran larvae, coleopterans, orthopterans and spiders were the dominant preys in the lizard’s diet. Snout-vent length and head length, width and height were not correlated to prey length, width and volume. Other parameters such as profitability and prey target selection could be involved in prey selection by A. edracantha.

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Section: Discussionsupporting

confidence: 88%

Nota sobre la dieta de Ameiva edracantha (Squamata, Teiidae) en el Parque Nacional Cerros de Amotape, Tumbes, Perú

Jordán

Amaya

2011

Rev peru biol

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“…Conversely, for T. torquatus (caRValHo et al, 2007) and for another population of T. oreadicus (RocHa & siqueiRa, 2008) the authors failed to find an effect of lizard size on prey dimensions. Thus, factors other than lizard body size or head measurements may also be important in determining the size of prey consumed by these lizards.…”

Section: Discussionmentioning

confidence: 91%

“…etheridgei Cei, 1982: cRuZ et al, 1998; T. itambere Rodrigues, 1987: faRia & aRaújo, 2004T. oreadicus Rodrigues, 1987: RocHa & siqueiRa, 2008T. torquatus (Wied, 1820): caRValHo et al, 2007.…”

Section: Discussionunclassified

“…Tropidurus torquatus is also known for its consumption of plant matter, mainly fruits (fialHo et al, 2000). The fact that plant parts (leaves, flowers, fruits and seeds) account for a sizable portion of the total volume ingested in the diet of Tropidurus species (caRValHo et al, 2007;RocHa & siqueiRa, 2008), suggests that ingestion is not accidental, and that plants are indeed a common food item for these lizards. At ESEC Seridó, in addition to invertebrates and plant material, the stomach contents of an adult female included an adult hylid frog Scinax x-signatus (6,280 mm 3 in volume) (RibeiRo & fReiRe, 2009c).…”

Section: Discussionmentioning

confidence: 99%

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Trophic ecology and foraging behavior of Tropidurus hispidus and Tropidurus semitaeniatus (Squamata, Tropiduridae) in a caatinga area of northeastern Brazil

Ribeiro

Freire²

2011

Iheringia, Sér. Zool.

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ABSTRACT.This study aimed to analyze the seasonal variation in diet composition and foraging behavior of Tropidurus hispidus (Spix, 1825) and T. semitaeniatus (Spix, 1825), as well as measurement of the foraging intensity (number of moves, time spent stationary, distance traveled and number of attacks on prey items) in a caatinga patch on the state of Rio Grande do Norte, Brazil. Hymenoptera/Formicidae and Isoptera predominated in the diet of both species during the dry season. Opportunistic predation on lepidopteran larvae, coleopteran larvae and adults, and orthopteran nymphs and adults occurred in the wet season; however, hymenopterans/Formicidae were the most important prey items. The number of food items was similar between lizard species in both seasons; however the overlap for number of prey was smaller in the wet season. Preys ingested by T. hispidus during the wet season were also larger than those consumed by T. semitaeniatus. Seasonal comparisons of foraging intensity between the two species differed, mainly in the wet season, when T. hispidus exhibited less movement and fewer attacks on prey, and more time spent stationary if compared to T. semitaeniatus. Although both lizards are sit-and-wait foragers, T. semitaeniatus is more active than T. hispidus. The diet and foraging behavior of T. hispidus and T. semitaeniatus overlap under limiting conditions during the dry season, and are segregative factors that may contribute to the coexistence of these species in the wet season.KEYWORDS. Diet, foraging strategies, lizards, semiarid, sympatric species. RESUMO. Ecologia trófica e comportamanto de forrageamento deTropidurus hispidus e Tropidurus semitaeniatus (Squamata, Tropiduridae) em uma área de caatinga do nordeste do Brasil. Este estudo objetivou analisar a variação sazonal na composição da dieta e no comportamento de forrageamento de Tropidurus hispidus (Spix, 1825) e T. semitaeniatus (Spix, 1825) e medir a intensidade de forrageamento (número de movimentos, tempo gasto parado, distância percorrida e número de ataques sobre itens-presa) destas espécies em uma área do bioma caatinga no estado do Rio Grande do Norte, Brasil. Hymenoptera/Formicidae e Isoptera predominaram na dieta de ambas as espécies durante a estação seca. A predação oportunística de larvas de Lepidoptera, larvas/adultos de Coleoptera e ninfas/adultos de Orthoptera ocorreu na estação chuvosa, contudo as formigas foram os itens-presa mais importantes. O número de itens alimentares foi similar entre as espécies de lagartos em ambas as estações; no entanto a sobreposição para o número de presas foi menor na estação chuvosa. As presas ingeridas durante a estação chuvosa por T. hispidus foram maiores do que aquelas de T. semitaeniatus. As comparações sazonais da intensidade de forrageamento entre as duas espécies mostraram diferenças, principalmente na estação chuvosa, quando T. hispidus apresentou menos movimentos e ataques sobre presas, e mais tempo gasto parado comparado a T. semitaeniatus. Embora ambos os lagartos sejam forrageadores ...

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“…Alvarez et al 1985, Fialho et al 2000, Rocha et al 2002, Dutra et al 2011) and also for various congeneric species (e.g. Vitt 1991, Colli et al 1992, Van Sluys 1993, Mesquita et al 2006, Rocha & Siqueira 2008. We recorded a differential consumption of plant material (mainly fruits and flowers) by the lizards in three localities (Maricá, Massambaba and Jurubatiba).…”

Section: Discussionmentioning

confidence: 78%

Variation in the diet of the lizard Tropidurus torquatus along its coastal range in Brazil

et al. 2013

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The diet composition of lizards of a given species may vary among different populations. The feeding ecology of the tropidurid lizard Tropidurus torquatus was studied in 10 coastal areas in Brazil in order to detect to what extent the diet varies along its geographic range. A non-metric multidimensional scaling technique revealed three groups of localities according to the diet composition: one characterized by a relatively high consumption of Isoptera, one characterized by a relatively high proportion of plant matter, and one in which there was a great importance of Formicidae. We found a weak pattern of latitudinal differences in restingas regarding the general consumption of items by T. torquatus, probably because this is a generalist and opportunistic lizard, which consumes most of the available types of potential food items in the habitat. However, lizards from northern populations consumed a larger quantity of smaller items (e.g., Isoptera) than those from southern populations. In the southern populations, on the other hand, larger items such as Coleoptera, Lepidoptera larvae and fruits were more frequently consumed. It is likely that the observed interpopulational variation in some aspects of the feeding ecology of coastal T. torquatus is mainly given by food availability. Resumo: A composição da dieta de lagartos de uma determinada espécie pode variar entre diferentes populações. A ecologia alimentar do lagarto tropidurídeo Tropidurus torquatus foi estudada em 10 áreas da costa do Brasil a fim de detectar em que extensão a dieta varia ao longo de sua distribuição geográfica. Uma técnica de escalonamento multidimensional não-métrico revelou três grupos de localidades de acordo com a composição da dieta: um caracterizado por um relativamente alto consumo de Isoptera, um caracterizado pela relativamente alta proporção de material vegetal, e um em que houve uma grande importância de Formicidae. Nós encontramos um fraco padrão de diferença latitudinal nas restingas em relação ao consumo geral de itens por T. torquatus, provavelmente porque este é um lagarto generalista e oportunista, que consome a maioria dos tipos disponíveis de potenciais itens alimentares no habitat. No entanto, os lagartos das populações mais ao norte consumiram uma maior quantidade de menores itens (e.g., Isoptera) do que aqueles das populações mais ao sul. Nas populações mais ao sul, por outro lado, items maiores como Coleoptera, Lepdoptera, larvas e frutos foram mais frequentemente consumidos. É provável que a variação interpopulacional observada em alguns aspectos da ecologia alimentar de T. torquatus costeiros seja ocasionada principalmente pela disponibilidade de alimento. Palavras-chave: variação geográfica, ecologia alimentar, restinga, lagarto tropical, Tropiduridae.94 Siqueira, C.C. et al.

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Feeding ecology of the lizard Tropidurus oreadicus Rodrigues 1987 (Tropiduridae) at Serra dos Carajás, Pará state, northern Brazil

Cited by 13 publications

References 18 publications

Nota sobre la dieta de Ameiva edracantha (Squamata, Teiidae) en el Parque Nacional Cerros de Amotape, Tumbes, Perú

Nota sobre la dieta de Ameiva edracantha (Squamata, Teiidae) en el Parque Nacional Cerros de Amotape, Tumbes, Perú

Trophic ecology and foraging behavior of Tropidurus hispidus and Tropidurus semitaeniatus (Squamata, Tropiduridae) in a caatinga area of northeastern Brazil

Variation in the diet of the lizard Tropidurus torquatus along its coastal range in Brazil

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