نتایج جستجو برای: fishing and hunting

تعداد نتایج: 16831426  

Journal: :Trends in ecology & evolution 2010
Linda Laikre Michael K Schwartz Robin S Waples Nils Ryman

Large-scale exploitation of wild animals and plants through fishing, hunting and logging often depends on augmentation through releases of translocated or captively raised individuals. Such releases are performed worldwide in vast numbers. Augmentation can be demographically and economically beneficial but can also cause four types of adverse genetic change to wild populations: (1) loss of gene...

2011
Elizabeth M. P. Madin Joshua S. Madin David J. Booth

By linking ecological theory with freely-available Google Earth satellite imagery, landscape-scale footprints of behavioural interactions between predators and prey can be observed remotely. A Google Earth image survey of the lagoon habitat at Heron Island within Australia's Great Barrier Reef revealed distinct halo patterns within algal beds surrounding patch reefs. Ground truth surveys confir...

2008
Cluny Johnstone Roger Wilson

This report gives preliminary results of the investigation of the vertebrate assemblage from Castagna, Sicily. As the assemblage is so small the results should be treated with due caution. The assemblage yielded little information about the occupation of the site. However, the assemblage contained an unusually high proportion of deer bones, of which three were possibly the first identifications...

S. Zhaoqun, W. Rong, Z. Yugui,

This paper used Data Envelopment Analysis (DEA) to measure the technical efficiency of fishing vessels in Haizhou Bay, and then used the Tobit regression to define its influencing factors. This study shows that the overall fishing capacity utilization of fishing vessels at present is very low which indicates that there is a serious problem of waste of resources in Haizhou Bay. Specifically, the...

2006
JOHN BRAITHWAITE

— Developing states with limited regulatory capacity might benefit from a responsive approach to regulation. Responsive regulation is a democratic ideal, incorporating notions of deliberative democracy and restorative justice. Responsive regulation conducted by regulatory networks of governmental and non-governmental actors allows for networking around capacity deficits. NGOs play a vital role ...

2014
Benjamin T Maletzke Robert Wielgus Gary M Koehler Mark Swanson Hilary Cooley J Richard Alldredge

The effects of increased mortality on the spatial dynamics of solitary carnivores are not well understood. We examined the spatial ecology of two cougar populations that differed in hunting intensity to test whether increased mortality affected home range size and overlap. The stability hypothesis predicts that home range size and overlap will be similar for both sexes among the two areas. The ...

Journal: :Izvestiâ Irkutskogo gosudarstvennogo universiteta 2023

Middle Holocene hunter-gatherers (HG) of the Cis-Baikal, Eastern Siberia, display substantial spatiotemporal variation in adaptive strategies highlighted by several cultural transitions. These transitions are examined focusing on role following factors: (1) changes distribution boreal forest; (2) technological innovations; (3) intensification fishing; and (4) their combined impacts subsistence ...

Journal: :تحقیقات اقتصاد و توسعه کشاورزی ایران 0
شهلا چوبچیان دانشجوی دکتری توسعۀ کشاورزی دانشکدۀ اقتصاد و توسعۀ کشاورزی خلیل کلانتری استاد دانشکدۀ اقتصاد و توسعۀ کشاورزی علی اسدی استاد دانشکدۀ اقتصاد و توسعۀ کشاورزی سید امین الله تقوی مطلق استادیار وزارت جهاد کشاورزی غلامحسین حسینی نیا استادیار دانشکدۀ کارآفرینی دانشگاه تهران

fishing as one of the most important agricultural sectors has an important role in providing the protein for people. pareh cooperatives despite of having a long history, are faced with problems such as loss of fishing catch compare with previous years, the high cost of purchasing tools and equipments to catch and transportation and location of fishing become unfavorable due to natural and human...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید