نتایج جستجو برای: caspian forests

تعداد نتایج: 42923  

پایان نامه :0 1371

in order to examine the ecological conditions and characteristics of fraxinus excelsior l. in the northern forests of iran 6 main areas as well as some miscellaneous ones , have been selected in the region respectively in : lomir2, shafaroud , park - e-noor , ahlam , alandan and noor.

Journal: :تحقیقات جنگل و صنوبر ایران 0
علیرضا میربادین عضو هیأت علمی، بخش تحقیقات جنگل، مؤسسه تحقیقات جنگلها و مراتع کشور، تهران، ایران یوسف گرجی بحری ایستگاه تحقیقات نوشهر، مرکز تحقیقات کشاورزی و منابع طبیعی مازندران، نوشهر، ایران منوچهر نمیرانیان عضو هیءت علمی، گروه جنگلداری و اقتصاد جنگل، دانشکده منابع طبیعی دانشگاه تهران، کرج، ایران

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2005
S. NAZIFI S. RATEGH

Introduction Perhaps, the most exciting equine discovery of the 20th century was that the Caspian is not a pony, but an ancient breed of miniature horse, previously believed to have been extinct for over a thousand years. These animals native of the areas around the Elborz Mountains and Caspian Sea in Iran, are extremely rare and were rescued from extinction in 1965 by an American L.FIROUSE [11...

Journal: :South of Russia: ecology, development 2015

A. Amirteimoori J. Malaei Boosari S. Mohammadi Limaei

The aim of this research was to measure the relative efficiency of forest management plans in north of Iran. In order to fulfill the research, data of 12 forest management plans were collected from the financial balance sheets of Shafaroud Forest Company during a ten years period. First of all, basic Data Envelopment Analysis (DEA) models (BCC and CCR) were used to determine the efficiency. The...

Journal: : 2022

The Caspian lizard (Darevskia caspica) is a recently described endemic of the Hyrcanian forests Northern Iran. paper presents new data on reproductive biology D. caspica obtained in laboratory conditions. Breeding females have body length 53.4– 64.4 mm and mass 2.96–3.60 g. Females produce from one to three clutches per season, each which contains 1–6 eggs. these eggs 10.35–13.95 mm, width 6.19...

2001
Melania E. A. Cristescu Paul D. N. Hebert Jonathan D. S. Witt Hugh J. MacIsaac Igor A. Grigorovich

The predatory cladoceran Cercopagis pengoi has extended its range over the past decade from the Ponto-Caspian basin into the Baltic Sea and the Laurentian Great Lakes. This study employs mitochondrial DNA (mtDNA) sequence analysis to elucidate the invasion corridors exploited during this range expansion. The Caspian and Black Sea populations of C. pengoi exhibit marked genetic divergence, enabl...

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