نتایج جستجو برای: hunting

تعداد نتایج: 7666  

2016
William J Ripple Katharine Abernethy Matthew G Betts Guillaume Chapron Rodolfo Dirzo Mauro Galetti Taal Levi Peter A Lindsey David W Macdonald Brian Machovina Thomas M Newsome Carlos A Peres Arian D Wallach Christopher Wolf Hillary Young

Terrestrial mammals are experiencing a massive collapse in their population sizes and geographical ranges around the world, but many of the drivers, patterns and consequences of this decline remain poorly understood. Here we provide an analysis showing that bushmeat hunting for mostly food and medicinal products is driving a global crisis whereby 301 terrestrial mammal species are threatened wi...

2015
Jacinthe Gosselin Andreas Zedrosser Jon E Swenson Fanie Pelletier

There is increasing evidence of indirect effects of hunting on populations. In species with sexually selected infanticide (SSI), hunting may decrease juvenile survival by increasing male turnover. We aimed to evaluate the relative importance of direct and indirect effects of hunting via SSI on the population dynamics of the Scandinavian brown bear (Ursus arctos). We performed prospective and re...

F. Tootoonchian, H. Lesani, Z. Nasiri-Gheidari,

Hunting is a flutter associated with the synchronous speed that gives rise to the gyro drifting errors and may cause objectionable time-displacement errors in video head wheel drives and other precision scanning systems. In this paper, dynamic characteristics of permanent Magnet hysteresis motors are presented and hunting is explained. New damping techniques have been developed using optimi...

2012
Carlos Calvete Elena Angulo Rosa Estrada

Several predator species at risk of extinction in Southwestern Europe are dependent on the population density of European wild rabbits Oryctolagus cuniculus. Rabbit populations in the region, however, have recently undergone dramatic decreases in population density, which may be exacerbated by hunting. Current hunting policies set the autumn–winter season, just before the start of rabbit reprod...

Journal: :PloS one 2016
Philippe Bouché William Crosmary Pierre Kafando Benoit Doamba Ferdinand Claude Kidjo Cédric Vermeulen Philippe Chardonnet

The W-Arly-Pendjari (WAP) ecosystem, shared among Benin, Burkina Faso and Niger, represents the last lion stronghold of West Africa. To assess the impact of trophy hunting on lion populations in hunting areas of the WAP, we analyzed trends in harvest rates from 1999 to 2014. We also investigated whether the hunting areas with higher initial hunting intensity experienced steeper declines in lion...

2008
NEELAM POUDYAL SEONG HOON CHO

We modeled hunting demand among resident hunters in the Southeastern United States. Our model revealed that future hunting demand will likely decline in this region. Population growth in the region will increase demand but structural change in the region's demography (e.g., "browning" and "aging "), along with declining forestland access will decrease hunting demand. The results suggested that ...

2016
Henry Brink Robert J Smith Kirsten Skinner Nigel Leader-Williams

It is argued that trophy hunting of large, charismatic mammal species can have considerable conservation benefits but only if undertaken sustainably. Social-ecological theory suggests such sustainability only results from developing governance systems that balance financial and biological requirements. Here we use lion (Panthera leo) trophy hunting data from Tanzania to investigate how resource...

2014
FRANK JENSEN BO JELLESMARK THORSEN

We consider a hunting area and a wildlife reserve and answer the question: How does clever migration decision affect the social optimal and the private optimal hunting levels and population stocks? We analyze this in a model allowing for two-way migration between hunting and reserve areas, where the populations’ migration decisions depend on both hunting pressure and relative population densiti...

2014
Michelle L. Lute Adam Bump Meredith L. Gore

Whereas past wolf management in the United States was restricted to recovery, managers must now contend with publicly contentious post-recovery issues including regulated hunting seasons. Understanding stakeholder concerns associated with hunting can inform stakeholder engagement, communication, and policy development and evaluation. Social identity theory (SIT) has been used to understand how ...

2015
Paula A. White Jerrold L. Belant

Sport hunting has reportedly multiple benefits to economies and local communities; however, few of these benefits have been quantified. As part of their lease agreements with the Zambia Wildlife Authority, sport hunting operators in Zambia are required to provide annually to local communities free of charge i.e., provision a percentage of the meat obtained through sport hunting. We characterize...

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