A. M. Poyafar - Department of Nature Engineering, Faculty of Natural Resources and Environment, Science and Research Branch, Islamic Azad University, Tehran, Islamic Republic of Iran.
A. Arzani - Faculty of Natural Resources, College of Agriculture and Natural Resources, University of Tehran, Karaj, Islamic Republic Iran.
S. A. Javadi - Department of Nature Engineering, Faculty of Natural Resources and Environment, Science and Research Branch, Islamic Azad University, Tehran, Islamic Republic of Iran.
A. Tahmasebi - Department of Human Geography, Faculty of Geographical Sciences, Kharazmi University, Tehran, Islamic Republic of Iran.

Beekeeping on rangelands is considered as a key approach for sustaining pastoral livelihood and reducing pressure on grazing lands. Previous studies are mostly focused on the ecological contributors of apiculture and the social criteria are not treated in much detail. The current research, therefore, uses the case of Sarayan Arid Rangelands in northeast Iran to examine the importance of social capital in adaptation of beekeeping as a pastoral livelihood diversification strategy. Through a random sampling procedure, ۱۸۰ herders were selected in the study area. Questionnaires were used to collect data on trusts, collaboration, and solidarity as the main determinants of social capital and also herders' interests in beekeeping. Stepwise linear regression method was employed to estimate the relation between herders' interest in beekeeping and their social capital. The results show that about ۳۳% in variance of motivation on beekeeping as a livelihood diversification strategy could be explained by the cooperation, trust, and solidarity among the rangeland users. Therefore, it is vital to introduce policies and measures to support collaboration and social networks among the rangeland users.

Apiculture, Cooperation, Rangeland users, Solidarity, Trust.