7359

6865

كارشناسي ارشد

محيط زيست

اصفهان: دانشگاه صنعتي اصفهان، دانشكده منابع طبيعي

1391

يازده، 78ص.: مصور، جدول، نمودار

ص.ع. به فارسي و نگليسي

محمودرضا همامي

مجيد ايرواني، ژوزف سن

13/9/91

مصطفي تركش، منصوره ملكيان

1396/09/21

كتابنامه

منابع طبيعي

مهندسي منابع طبيعي

ID6865

به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي

Food Habits and Seed Dispersal by Persian Wild Ass Equus hemionus onager in Qatruiyeh National Park Author Amin Ghasemi Email address ghasemi amin66@yahoo com 17 Sep 2012 Department of Natural Resources Isfahan University of Technology Isfahan84156 83111 Iran Degree MSc Language PersianSupervisor Mahmoudreza Hemami mrhemami@cc iut ac irAbstract Mammals may disperse seeds through different mechanisms with endozoochory being themost important in large herbivores Having wide home ranges large herbivores play a keyrole in long distance dispersal of plant seeds between and within habitats Studying ungulatesfood habits is one of the most important steps in understanding their ecology and planning fortheir conservation Seed dispersal studies can also complement the knowledge about foodhabits of the studied species Persian wild ass or onager Equus heinous onager has beenthreatened by poaching habitat degradation insufficient protection and drought Consequently it is currently listed as Critically Endangered by IUCN The aim of this studyhas been to investigate seasonal and spatial variation in dung seed content of onager as theonly extant and originally largest ungulate species in Qatruiyeh National Park South CentralIran Identifying the dominant food plant species for onager has been the second aim of thisstudy Fresh pellet groups n 186 were collected from three different plains separated bymountain chains in July and October 2011 and were cultivated in a green house Totally 51plant species 27 and 49 species from July and October samples respectively from 41 generaand 20 families germinated from dung samples Species richness and relative frequency ofseedlings varied not only between the seasons but also between the three plains p 0 001 Detrended Correspondence Analysis separated the three plains with regard to germinatedplant species from dungs collected from each of them In summer the species composition ofthe germinated plant species from dung was more or less similar for Rig Jamshid and Deh Vazir plains but was different for Einol Jalal plain In autumn species composition wasdifferent for the three plains although the similarity between Rig Jamshid and Einol Jalalplains was more than that between these two plains and Deh Vazir plain Lepidiumvesicarium Brassicaceae and Astragalus podolobus Fabaceae were the most abundantplant species germinated from July and October samples respectively Simpson s index ofdiversity had a range of 0 20 to 0 81 between the three plains in July samples but was almostthe same in all three plains for October samples Microhistological analysis revealed the useof four plant species by onager including Stipa barbata Tamarix ramosissima Zygophyllumatriplicoides and Achilla wilhelmsii From these the two annual plant species were alsogerminated from dung samples but two woody species of Tamarix ramosissima andZygophyllum atriplicoides were only recorded in microhistological analysis Key words Microhistological diet habitat mnagement large herbivore endozoochory

محمودرضا همامي

مجيد ايرواني، ژوزف سن

مصطفي تركش، منصوره ملكيان