نتایج جستجو برای: rangeland species

تعداد نتایج: 550009  

Journal: :journal of rangeland science 2014
reza erfanzadeh moharam ashrafzadeh seyed hamzeh hosseini kahnuj arezu alizadeh

study on the livestock diet is one of the main priorities in the management of rangeland in iran. so, this study was conducted to compare preference values of plant species in three age classes of kaboudeh sheep (one, three and five year old ones) in rangelands of bavanat, fars province, iran. for each age class, four sheep were selected and their grazing times from different plant species were...

Journal: :Ecological applications : a publication of the Ecological Society of America 2009
Takehiro Sasaki Satoru Okubo Tomoo Okayasu Undarmaa Jamsran Toshiya Ohkuro Kazuhiko Takeuchi

The current growing body of evidence for diversity-disturbance relationships suggests that the peaked pattern predicted by the intermediate disturbance hypothesis (IDH) may not be the rule. Even if ecologists could quantify the diversity-disturbance relationship consistent with the IDH, the applicability of the IDH to land management has rarely been addressed. We examined two hypotheses related...

Introduction: Allelopathy refers to the plants’ mutual biochemical effects. Despite their significant role in improving and restoring Iranian rangelands, the plants’ allelopathic effects on each other have often been neglected in rangeland seeding. Scholars argue that in stressful conditions of the arid areas caused by low precipitation, the effects of metabolic chemicals secreted by allelochem...

Journal: :journal of herbal drugs (an international journal on medicinal herbs) 2011
alavi s.z rabie e saeedi goraghani h.r ghordoye milan gh

background & aim: in recent years, iran and other countries pay special attention to side effects of chemical plants. this interest in plants and their derivatives leads to business of medicinal plants. in caspian region, in forestry projects there are many plant species with medicinal uses from which the locale indigenous used due to traditional experience without any especial processing i...

2017
Christian A. Hagen Brent E. Jamison Kenneth M. Giesen Terry Z. Riley

Lesser prairie-chicken (Tympanuchus paidicinctus) populations have declined by >90% since the 1800s. These declines have concerned both biologists and private conservation groups and led to a petition to list the lesser prairie-chicken as threatened under the Endangered Species Act. Most of the land in the current range of the lesser prairie-chicken is privately owned, and declines have been pr...

Journal: Journal of Herbal Drugs 2011
Alavi S.Z Ghordoye Milan GH Rabie E Saeedi Goraghani H.R,

Background & Aim: In recent years, Iran and other countries pay special attention to side effects of chemical plants. This interest in plants and their derivatives leads to business of medicinal plants. In Caspian region, in forestry projects there are many plant species with medicinal uses from which the locale indigenous used due to traditional experience without any especial processing in pa...

ژورنال: مرتع 2021
Erfanzadeh, Reza, Jafari, Mohammad, Mohebali, Alireza,

Rangeland soil is one of the important environmental components that is closely related to the vegetation. Therefore, the aim of this study was to investigate the effect of three types of woody plant species including Juniperus sabina (evergreen and crown attached to the ground), Berberis integerrima (deciduous and open crown) and Onobrychis cornuta (deciduous and cushion), on under the beneath...

Journal: :Bulletin of the Ecological Society of America 2005

2007
Roger L. Sheley

The objective of this study was to test the potential for using a single-entry procedure to revegetate Russian knapweed– and green rabbitbrush–infested rangeland. I hypothesized that simultaneously applying an herbicide and seeding in the fall would produce the highest establishment and growth of desired species. For Russian knapweed, treatments included three seeding rates (zero, low, and high...

2016
Hailey Wilmer María E. Fernández-Giménez

Rangeland researchers are increasingly interested in understanding working rangelands as integrated social-ecological systems and in investigating the contexts of human decision-making processes that support system resilience. U.S. public lands ranchers are key partners in rangeland conservation, but the role of women in building system resilience has not yet been explored. We conducted life-hi...

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