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Inner Mongolia Normal University (2021)

Responses of Small Reptiles to Environmental Change in Desert Areas ——A Case Study of the Eremias Argus and Phrynocephalus Przewalskii

杨俊梅

Titre : Responses of Small Reptiles to Environmental Change in Desert Areas ——A Case Study of the Eremias Argus and Phrynocephalus Przewalskii

Auteur : 杨俊梅

Grade : Master These 2021

Université : Inner Mongolia Normal University

Résumé partiel
In this paper, the Eremias argus and Phrynocephalus przewalskii in Inner Mongolia Siziwang Banner.as the research objects,introduced the response of the Eremias argus and Phrynocephalus przewalskii to environmental change,the response of the nest site selection of the Eremias argus to environmental change,and the habitat comparison of the Eremias argus and Phrynocephalus przewalskii.First,a comparative study on the habitats of the Eremias argus and Phrynocephalus przewalskii,In the field study,the line transect method was used to observe and record lizard species,and the main indicators of habitat characteristics in the sample square were recorded by the line transect method : vegetation fraction,gravel proportion,bare land proportion,vegetation height,egetation species,hardness of soil,temperature of soil and soil moisture of soil.The results have differences in the selection of microhabitats between the two lizards.Most of the Eremias argus habitats were shrub or grass with high vegetation coverage,and the microhabitats with high vegetation height,more vegetation species,low ratio of gravel and high soil hardness.However,the Phrynocephalus przewalskii habitat is mainly the micro-habitat with low vegetation coverage,small vegetation species,high ratio of gravel,low soil hardness,high soil temperature and low soil moisture.In the transition region,the two species are distributed in the joint domain.Principal component analysis also showed that the Eremias argus preferred the habitat with high vegetation coverage,while the Phrynocephalus przewalskii preferred the habitat with high bare land proportion.This study provides basic data for understanding the habitat selection of lizards and further understanding the impact of habitat change on lizards.Second,the response of habitats to environmental change,rainfall,vegetation coverage and vegetation height all affected the population density of the Eremias argus and Phrynocephalus przewalskii.

Mots clés : Eremias argus ;Phrynocephalus przewalskii ;habitat characteristics ;comparative analysis ;nest site selection ;insulation;moisturizing ;

Présentation (CNKI)

Page publiée le 22 octobre 2021