Seasonal variation in diet and prey availability in the wall lizard Podarcis vaucheri (Boulenger, 1905) from the Djurdjura Mountains, northern Algeria

IF 0.8 4区生物学 Q3 ZOOLOGY

African Journal of Herpetology Pub Date : 2019-07-03 DOI:10.1080/21564574.2018.1509138

Rabah Mamou, F. Marniche, Mansour Amroun, J. Exbrayat, A. Herrel

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引用次数: 4

Abstract

ABSTRACT We studied the composition and seasonal changes in diet and prey selection in the wall lizard Podarcis vaucheri of the Djurdjura Mountains throughout its activity period, from April to October 2014. The analysis of 238 faecal pellets revealed 1 206 prey items distributed in 19 prey categories. The most important prey categories were: Formicidae, Coleoptera, Aranea, Homoptera, and Orthoptera. Significant seasonal variation in the taxonomic composition of the diet and prey availability was found. A significant difference in diet composition was observed between males and females in spring. This lizard species displayed a more diverse dietary spectrum during this period, followed by a slight decrease in summer. However, a severe decrease in the food niche breadth was observed in autumn, resulting in a high consumption of ants. A comparison of diet composition and prey availability showed that lizards exhibited a clear selection of certain prey types, in contrast to what is often suggested for lacertid lizards.

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阿尔及利亚北部Djurdjura山脉的壁蜥Podarcis vaucheri (Boulenger, 1905)饮食和猎物可得性的季节变化

摘要研究了2014年4 - 10月Djurdjura山沃切利壁蜥(Podarcis vaucheri)活动期间的组成、食性和猎物选择的季节变化。对238粒粪球进行分析，发现猎物1 206个，分布在19个猎物类别中。最主要的猎物类别为蚁科、鞘翅目、蜘蛛目、同翅目和直翅目。在食性和猎物可得性的分类组成上发现了显著的季节变化。春季雄性和雌性的日粮组成有显著差异。这种蜥蜴在这一时期表现出更多样化的饮食谱，随后在夏季略有减少。然而，秋季食物生态位宽度明显减小，导致蚂蚁的大量消耗。一项对饮食组成和猎物可获得性的比较表明，蜥蜴对某些猎物类型有明确的选择，这与通常认为的蛇蜥不同。

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来源期刊

African Journal of Herpetology ZOOLOGY-

CiteScore

3.00

自引率

6.70%

发文量

审稿时长

>12 weeks

期刊介绍： African Journal of Herpetology (AJH) serves as an outlet for original research on the biology of African amphibians and reptiles. AJH is an interdisciplinary journal that publishes original articles and reviews from diverse fields and disciplines, such as conservation, phylogenetics, evolution, systematics, performance, physiology, ecology, behavioural ecology, ethology, and morphology. The Journal publishes two issues a year. There are no page charges .