Showing 2 results for Farahpour
M. Azimee, M. Mesdaghi, M. Farahpour,
Volume 9, Issue 3 (fall 2005)
Abstract
Due to the feeding on prickly shrub of Astragalus adscendes by an insect (Cyamophila dicora Loginva), a kind of the manna named Gaz-angubin is produced which it’s harvesting has a long history in Isfahan province. This manna is exclusively produced in Isfahan, Iran. In this research, a map of spatial distribution of this prickly shrub was provided. By random-systematic sample of line transects, biological criteria such as insect density, canopy coverage, branch and the soil moisture were measured. Multiple linear regression and nested design were used to analyses the response and predictor variables. The results indicated that the prickly shrub of Astragalus adscendens occupied the wet parts of mountainous areas of Isfahan and density of insect is highly related to the age, canopy coverage and soil moisture. By increasing the age of prickly shrub, the densities of insect are also increased. Regression analysis showed that the age of plant are more important in two areas of Kloseh and Lashokhm, while in Dareh-sibe area, soil moisture and the moisture of branches are more important. In other words, when the moisture is enough (e.g. Kloseh and Lashokhm areas), the age of plant has the paramount effects on insect density but when the area was suffered from drought, branches and soil moisture are more important.
A Ephtekhari, M Farahpour, H Arzani, J Abdolahi,
Volume 13, Issue 47 (4-2009)
Abstract
Species which were grazed by livestock and wildlife in range sites and the portion taken by each animal were the subject of this study. Two sites occupied with Scariola orientalis (Boiss.) Sojak and Artemisia sieberi Besser and another with Aellenia subaphyla (C.A.Mey.)Aellen and Artemisia sieberi were selected for the study. These sites were already established by Yazd Research Center for Agriculture and Natural Resources. Sites should be covered with similar vegetation (72% similarity), as much as possible indeed. One site, by the name of Kalmand, is a protected area and is exclusively grazed by Iranian gazelle, while the other, Jadehdehshir, by sheep and goat. Results of the study show that the selection of species is the same by these animals. Both are interested in the following species: Artemisia sieberi, Scariola orientalis, Bromus tectorum L, Stipa barbata Desf. , Noaea mucronata (Forsk.) A schers.et Schweinf, and Launaea acanthodes (Boiss.)o.Kuntze. On the contrary, species such as Acantholimon scorpiurs (Joub. &Spach) Boiss, Astragalus albispinus L were not taken by the animal for their woody stems and thorny branches. Fresh and non woody parts of the plants were grazed by both types of animal. Similarity between grazing behavior of wildlife and livestock in Yazd province shows that wildlife feed requirement should be seriously taken into account when grazing capacity of rangelands is to be evaluated.
