Feeding ecology of the common sun skink,<i>Eutropis multifasciata</i>(Reptilia: Squamata: Scincidae), in the plains of central Vietnam

Ngo, Chung D.; Ngo, Binh Van; Hoang, Thuong T.; Nguyen, Thi Thuong Thuong; Dang, Hai P.

doi:10.1080/00222933.2015.1021876

Cited by 15 publications

(21 citation statements)

References 59 publications

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“…Indeed, other studies with polymorphic species have revealed morphometric differences between morphs in body structures, particularly in head anatomy (Huyghe et al, 2007; Bustos-Zagal et al, 2014). Such differences in head size may be linked to variation in bite force, which in turn may be associated with morph differences in diet on the basis of prey size (Gadsden et al, 2011; Ngo et al, 2015) or hardness (Huyghe et al, 2007). We also found no relationship between the total volume of prey and either JL or JW in red males, but significant and negative associations between these variables were observed for yellow males (JL: r s = −0.44, P = 0.05; JW: r s = −0.45, P = 0.04).…”

Section: Discussionmentioning

confidence: 99%

“…We used the relative importance index ( I ) to determine the value of each category of consumed prey to each morph. This index includes three parameters for consumed prey (frequency, number, and volume), and is calculated as , where % F is the percentage of occurrence, % N is the numerical percentage, and % V is the volumetric percentage (Biavati, Wiederhecker & Colli, 2004; Ngo et al, 2014). The relative importance index was calculated for each morph overall, and for each morph on a per-season basis (summer, fall, and winter).…”

Section: Methodsmentioning

confidence: 99%

“…For example, at the population level, prey size and volume are in some cases correlated with dimensions of the head, which may in turn promote variation in diet between sexes and age classes (Ballinger, 1977; Cooper, Lemos-Espinal & Smith, 1998; Herrel et al, 2006). In addition, individuals of small size tend to consume small and soft prey, in contrast to the larger and harder prey consumed by large individuals of the same species (Gadsden et al, 2011; Ngo et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

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Comparative morphology and trophic ecology in a population of the polymorphic lizard Sceloporus minor (Squamata: Phrynosomatidae) from central Mexico

García-Rosales

Ramírez‐Bautista

Stephenson

2019

PeerJ

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Polymorphism among individuals of the same population has generally been linked to alternative reproductive tactics, where different morphs can exhibit differences in their morphological, ecological, and behavioral attributes. These differences may result in a divergence in diet between morphs due to differential exploitation of habitat, morphological differences that influence prey selection, or differential energy expenditure that results in different nutritional needs. The present study analyzes the morphology (morphometry and body mass) and diet of red and yellow male morphs in a population (El Enzuelado) of the lizard Sceloporus minor from central Mexico. No differences between morphs were found for any of the morphometric variables analyzed (snout-vent length, tail length, jaw length, jaw width, head length, head width, head height, tibia length, femur length, forearm length and ventral patch length). In both morphs, allometric growth was observed in all body features analyzed, as well as in morphometric features of the head across seasons. Analysis of stomach contents showed that the diet of red males was composed of 12 categories of prey, while that of yellow males was composed of 10 categories; those categories of diet not shared between morphs (e.g., Isoptera, Psocoptera) were consumed by their respective morph in very low proportions. Categories of diet with the highest values of food importance for both groups were Coleoptera, Orthoptera, and leaves; a similar pattern was seen across seasons. This, in turn, is reflected in low niche breadth values for each morph and a very high niche overlap. There were no significant differences between morphs overall, or between morphs per season, in the weight and volume of stomach contents or in the number of prey items found in stomachs; however, differences in these variables across all males (independent of morph) were recorded between seasons. Likewise, no significant correlations were found between body size (snout-vent length) and the volume of stomach contents for either morph or between lizard mandibular dimensions and the volume of stomach contents for red morph males. For the yellow morph, prey volume unexpectedly decreased significantly with jaw size rather than increasing as expected. Overall, this study adds new information about the morphology and feeding of males in this species, and suggests that in this population, color morphs lack the morphological and ecological differences found in some other species of polymorphic lizard.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Comparative morphology and trophic ecology in a population of the polymorphic lizard Sceloporus minor (Squamata: Phrynosomatidae) from central Mexico

García-Rosales

Ramírez‐Bautista

Stephenson

2019

PeerJ

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“…These ontogenetic changes in the frequency with which certain food types are consumed may be a consequence of the morphological and physiological restrictions for each age class. For example, it has been reported in some groups of lizards that small individuals consume small, soft prey in comparison to adults (Gadsden et al, 2011;Ngo et al, 2015). However, the nutritional requirements of each age class also could result in changes in diet, since it has been recorded that not all types of prey contribute same amount of nutrients (Leyte-Manrique and Ramírez-Bautista, 2010;Cruz-Elizalde et al, 2014).…”

Section: Discussionmentioning

confidence: 99%

NATURAL HISTORY OF THE BLACK IGUANA Ctenosaura similis (SQUAMATA: IGUANIDAE) IN ISLA CONTOY, QUINTANA ROO, MEXICO

2020

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The genera Iguanaand Ctenosaurabelong to the Iguanidae family, and populations of most species of these genera have decreased due to anthropogenic effects. The natural history of most species of this family is poorly known, including Ctenosaura similis. Therefore, this study documents some ecological aspects of the species, such as its feeding habits, and habitat and microhabitat use in a population on Isla Contoy in Quintana Roo, Mexico. The data showed that even though C. similisis distributed throughout the island, individuals more commonly use human construction (buildings) of Parque Nacional Isla Contoy (PNIC) and mangrove areas. Microhabitats most used by all age classes and sexes were rocks and trees. The diet of the species is omnivorous; however, the frequency of prey type consumed changes with the age of the individuals (hatchlings, juveniles, and adults), as well as with the season of the year. The practice of cannibalism by some individuals is also reported, as well as coprophagy and scavenging. This work provides general information on the life history of C. similis, complementing the scarce information that is currently available.

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“…Common gliding lizard (Draco volans) feeds mainly on ants, and possibly termites (McGuire and Kiew 2001). Common sun skink (Eutropis multifasciata) specializes on spiders, insect larvae, snails, grasshoppers and crickets (Ngo et al 2015).…”

Section: The Diversity Of Faunal Communitiesmentioning

confidence: 99%

Diversity of faunal communities in the Biodiversity Park of Ciherang, Bogor, West Java, Indonesia

et al. 2016

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Biodiversitas 17: 479-486. A Biodiversity Park is a new concept for ex situ conservation in Indonesia which was first launched in 2012. The purposes of a Biodiversity Park are to conserve indigenous and threatened species of flora, provide habitat for a diversity of animals, and to provide opportunities for economic benefit, recreation, education and research. The main goal of Biodiversity Park is to increase flora and fauna diversity in the midst of human settlement and industrial precincts. This research was directed at studying the diversity of faunal communities in the Biodiversity Park of Aqua Danone Ciherang, Bogor, West Java, Indonesia. Line transects, walk transects, terrestrial transects and point count methods were combined to census the mammals, reptiles, amphibians and birds in the Biodiversity Park. Twenty five families of fauna were identified, consisting of 28 genera and 32 species. The Shannon diversity index for the total faunal community was 2.82. Composition of the faunal community consisted of birds (66%), reptiles (16%), mammals (12%) and amphibians (6%). This finding supports the goal that Biodiversity Park can increase flora and fauna diversity. The diversity index of 2.37 for the bird community indicates a beneficial contribution to habitat quality within an urban environment.

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Feeding ecology of the common sun skink,Eutropis multifasciata(Reptilia: Squamata: Scincidae), in the plains of central Vietnam

Cited by 15 publications

References 59 publications

Comparative morphology and trophic ecology in a population of the polymorphic lizard Sceloporus minor (Squamata: Phrynosomatidae) from central Mexico

Comparative morphology and trophic ecology in a population of the polymorphic lizard Sceloporus minor (Squamata: Phrynosomatidae) from central Mexico

NATURAL HISTORY OF THE BLACK IGUANA Ctenosaura similis (SQUAMATA: IGUANIDAE) IN ISLA CONTOY, QUINTANA ROO, MEXICO

Diversity of faunal communities in the Biodiversity Park of Ciherang, Bogor, West Java, Indonesia

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