Diet of the desert lizard Liolaemus pseudoanomalus (Iguania: Liolaemini) in northern La Rioja Province, Argentina

Kozykariski, Mónica; Belver, Luciana Cecilia; Ávila, Luciano Javier

doi:10.1016/j.jaridenv.2011.06.004

Cited by 8 publications

(7 citation statements)

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“…Even though Hemiptera does not seem to be a typical choice in the diet of Liolaemus (Halloy et al, 2006), it has been recorded as an important item in the diet of L. eleodori (Astudillo et al, 2015), L. quilmes , L. ramirezae (Halloy et al, 2006; Robles & Halloy, 2008), and L. ruibali (Villavicencio et al, 2005). Formicidae has been recorded as an important component in the diet of several Liolaemus species (Halloy et al, 2006) such as L. koslowskyi (Aun & Martori, 1998); L. wiegmannii (Martori et al, 2002); L. elongatus (Quatrini et al, 2001); L. pseudoanomalus (Kozykariski et al, 2011); L. cuyanus (Moreno Azócar & Acosta, 2011); L. irregularis , L. albiceps , L. multicolor , and L. yanalcu , (Valdecantos, 2011). However, Formicidae was avoided by L. etheridgei and seems not to be an essential prey for this lizard.…”

Section: Discussionmentioning

confidence: 99%

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Microhabitat use, daily activity pattern, and diet of Liolaemus etheridgei Laurent, 1998 (Reptilia: Liolaemidae) in the Andean Polylepis forests of Arequipa, Peru

Llanqui

Edwards

Tejeda

2022

Ecology and Evolution

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This study describes the microhabitat use, daily activity pattern, and diet of Liolaemus etheridgei Laurent, 1998 in the El Simbral and Tuctumpaya Polylepis forests in Arequipa, Peru. El Simbral is a fragmented forest, whereas Tuctumpaya is unfragmented. Our results reveal that L. etheridgei shows no positive selection for any of the microhabitats we identified in Polylepis forests; on the contrary, it selects negatively against Polylepis trees and nonthorny bushes. The daily activity patterns indicate a bimodal pattern with peaks at 9:00–10:59 and 13:00–13:59 h. The diet of L. etheridgei consists mainly of plant material, and the most important animal prey category is Lygaeidae: Hemiptera, which is selected for positively. In particular, microhabitat selection varied for nonthorny bushes, which were selected negatively in the Tuctumpaya population but neither positively nor negatively in the El Simbral population. According to the proportions of plant material found, the L. etheridgei from El Simbral were found to be omnivorous, whereas the Tuctumpaya population was herbivorous. However, the percentage of plant material consumed in the El Simbral population was close to the critical value for herbivory–omnivory. We conclude that the three ecological aspects of L. etheridgei studied here are virtually identical in El Simbral and Tuctumpaya; therefore, this species is not affected significantly by the current fragmentation of forest.

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Section: Discussionmentioning

confidence: 99%

“…L. elongatus (Quatrini et al, 2001); L. pseudoanomalus (Kozykariski et al, 2011); L. cuyanus (Moreno Azócar & Acosta, 2011); L. irregularis, L. albiceps, L. multicolor, and L. yanalcu, (Valdecantos, 2011). However, Formicidae was avoided by L. etheridgei and seems not to be an essential prey for this lizard.…”

Section: Dietmentioning

confidence: 99%

Microhabitat use, daily activity pattern, and diet of Liolaemus etheridgei Laurent, 1998 (Reptilia: Liolaemidae) in the Andean Polylepis forests of Arequipa, Peru

Llanqui

Edwards

Tejeda

2022

Ecology and Evolution

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“…The larger number of Formicidae consumed by L. parvus could be due to the fact that ants are small and contain much indigestible chitin (Pianka, 1982). Their intake in large numbers could result in energy gain (Kozykariski, 2011). In addition, the prey-searching costs are lower because of ants being grouped in nests, columns, or aggregations (Roca, 1999).…”

Section: Discussionmentioning

confidence: 99%

“…In addition, the prey-searching costs are lower because of ants being grouped in nests, columns, or aggregations (Roca, 1999). Consuming Formicidae is common in different lizards of the genera Liolaemus (De Viana et al, 1994;Aun and Martori, 1998;Aun et al, 1999;Azocar and Acosta, 2011;Kozykariski, 2011), Homonota (Nieva et al, 2015), and Phrynosoma (Pianka, 1982). According to background studies, L. ruibali (Villavicencio et al, 2005) and L. occipitalis (Verrastro and Ely, 2015) display a sit-and-wait behavior.…”

Section: Discussionmentioning

confidence: 99%

Trophic analysis and parasitological aspects of Liolaemus parvus (Iguania: Liolaemidae) in the Central Andes of Argentina

Castillo¹,

Acosta²,

Blanco³

2019

Turk J Zool

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The objective of this study was to describe temporal variations in the diet and parasitological aspects in Liolaemus parvus. In order to examine the diet, we determined the volume, numerousness, and frequency of occurrence for each prey item and calculated the relative importance index. We removed nematodes from the stomach and estimated parasitic indicators. Liolaemus parvus presents an active searching mode. It is a predominantly insectivorous species with low intake of plant material and a specialist in feeding on prey items of the family Formicidae, although it also feeds on other arthropods like coleopterans, hemipterans, and spiders. We found temporal variations in its diet. The first record of Parapharyngodon riojensis nematodes is reported herein. Males showed higher nematode prevalence than females. We have expanded the number of host species and the distribution range of Parapharyngodon riojensis. The information provided about trophic ecology and parasitism is the first contribution to this lizard species' biology.

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“…The high mobility and local abundance of ants favors encounters between these insects and ambush predator lizards, which facilitates the capture of this type of prey. Species of the genus Liolaemus, such as L. cuyanus CEI and SCOLARO, (1980), (Azócar andAcosta, 2011), L. pseudoanomalus BURMEISTER, (1981), (Kozykariski et al, 2011), L. bibronii (BELL, 1843) (Belver and Avila, 2001, L. wiegmannii (DUMÉRIL & BIBRON, 1837) (Aun et al, 1999), L. koslowskyi ETHERIDGE, 1993, (Aun and Martori, 1998, L. boulengeri KOSLOWSKY, 1898, (Acosta et al, 1996), L. darwini (BELL, 1843), (Avila and Acosta, 1993;Videla, 1983) and L. lutzae (Rocha, 1989), and lizards of the genus Tropidurus also exhibit a preference for ants (Van Sluys, 1993, 1995Vitt and Carvalho, 1995). According to Vitt et al (2003), Iguanid lizards consume larger proportions of ants and other Hymenoptera because these lizards occupy a different microhabitat than the Scleroglossa lizards, which consume larger proportions of termites and spiders and avoid the consumption of prey with toxic chemical defenses.…”

Section: Discussionmentioning

confidence: 99%

Diet of the lizard Liolaemus occipitalis in the coastal sand dunes of southern Brazil (Squamata-Liolaemidae)

Verrastro

Ely

2015

Braz. J. Biol.

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Knowledge of a species' diet provides important information on adaptation and the relationship between the organism and its environment. The genus Liolaemus occurs in the southern region of South America and is an excellent model to investigate the adaptive processes of vertebrate ecology in ecosystems of this region of the world. Liolaemus occipitalis is an endangered species that inhabits the coastal sand dunes of southern Brazil. This species is the most abundant vertebrate in this environment, and it presents unique adaptation characteristics to the restinga environment. The present study analyzed this lizard's diet to verify similarities or differences between this species and other species of the same genus. Specimens were collected monthly from January 1996 to December 1997. The number of items, frequency of occurrence and volume of each prey taxon were determined. Arthropods were identified to the order level, and plant material was identified as flower, fruit, seed and leaves. Variations in the diet of males and females, adults and juveniles and seasons were also analyzed. The data indicate that Liolaemus occipitalis is a generalist, "sit-and-wait" or ambush predator as well as omnivorous, feeding on both arthropods and plant material. Significant ontogenetic differences were verified. Juveniles are more carnivorous, and the intake of plant material increases with size and age. Seasonal differences in diet composition were also observed. In the spring, arthropod and plant materials were more diversified and, therefore, consumed more often.Keywords: Liolaemus, southern Brazil, restinga, foraging, seasonal variation. Dieta do lagarto Liolaemus occipitalis nas dunas costerias do sul do Brasil(Squamata-Liolaemidae) ResumoO conhecimento sobre a dieta de uma espécie traz informações importantes sobre a adaptação e relações entre o organismo e seu ambiente. O gênero Liolaemus, que ocorre na região austral da América do Sul, tem-se mostrado como excelente modelo em ecologia de vetebrados para entender os processos adaptativos nos ecossistemas desta região do mundo. Liolaemus occipitalis é uma espécie ameaçada de extinção que habita as dunas costeiras do extremo sul do Brasil. É o vertebrado mais abundante neste ambiente e apresenta características peculiares de adaptação aos ambientes de restingas. No presente estudo analisou-se a dieta deste lagarto com o intuito de verificar se há diferenças com as espécies do gênero ou segue o mesmo padrão. Foram realizadas coletas mensais entre janeiro/96 e dezembro/97. Determinou-se o número de itens, a frequência de ocorrência e o volume de cada táxon de presa, identificados até o nível de ordem, no caso dos artrópodes, e como flor, fruto, semente e folhas o material vegetal. Foram analisadas as variações da dieta entre machos e fêmeas, entre adultos e jovens, e também entre as estações. Os dados indicam que Liolaemus occipitalis possui uma dieta onívora consumindo tanto artrópodes como material vegetal. Caracteriza-se por ser um predador generalista, forrageando ...

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Diet of the desert lizard Liolaemus pseudoanomalus (Iguania: Liolaemini) in northern La Rioja Province, Argentina

Cited by 8 publications

References 4 publications

Microhabitat use, daily activity pattern, and diet of Liolaemus etheridgei Laurent, 1998 (Reptilia: Liolaemidae) in the Andean Polylepis forests of Arequipa, Peru

Microhabitat use, daily activity pattern, and diet of Liolaemus etheridgei Laurent, 1998 (Reptilia: Liolaemidae) in the Andean Polylepis forests of Arequipa, Peru

Trophic analysis and parasitological aspects of Liolaemus parvus (Iguania: Liolaemidae) in the Central Andes of Argentina

Diet of the lizard Liolaemus occipitalis in the coastal sand dunes of southern Brazil (Squamata-Liolaemidae)

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