Informations et ressources scientifiques
sur le développement des zones arides et semi-arides

Accueil du site → Master → Etats Unis → 2005 → A Comparison of population sizes and number of captures for the Desert Woodrat (Neotoma lepida) in two microhabitats in the Las Vegas Wash, Nevada

University of Nevada Las Vegas (2005)

A Comparison of population sizes and number of captures for the Desert Woodrat (Neotoma lepida) in two microhabitats in the Las Vegas Wash, Nevada

Barangan Jayson

Titre : A Comparison of population sizes and number of captures for the Desert Woodrat (Neotoma lepida) in two microhabitats in the Las Vegas Wash, Nevada >

Auteur : Barangan Jayson

Université de soutenance : University of Nevada Las Vegas

Grade : Master of Arts (MA) 2005

Résumé
Planned removal and eradication of saltcedar in the Las Vegas Wash, Nevada could potentially generate adverse impacts on present desert woodrat (Neotoma lepida) populations inhabiting the area. Consequently, research was conducted investigating population sizes of N. lepida in two distinct microhabitat types, saltcedar (Tamarix sp.) and mesquite/quailbush (Prosopis sp./Atriplex lentiformis). The results of this study will aid in gauging the effects of the changes in vegetation once restoration work is completed and assist with logistical scheduling for implementation of control measures. Mark-recapture field techniques were utilized for data collection from July 2002 to June 2003. Population estimates were calculated using program CAPTURE. Preference for specific microhabitat type and dependence of population size on temperature were analyzed using G-tests and chi-square tests, respectively. It was determined that N. lepida preferred the saltcedar microhabitats to the mesquite/quailbush microhabitats and that population sizes increased with increased ambient air temperatures.

Présentation

Version intégrale

Page publiée le 17 septembre 2010, mise à jour le 15 janvier 2019