نتایج جستجو برای: etc human activities

تعداد نتایج: 2044486  

2016
Sreejani Sen Majumder Manabi Paul Shubhra Sau Anindita Bhadra

Dens are crucial in the early development of many mammals, making den site selection an important component of parental care in such species. Resource availability and shelter from predators primarily govern den selection. Species inhabiting human-dominated landscapes typically den away from human disturbance, often shifting dens to avoid humans during the early life of their young. Domesticate...

2015
Marcia Freire Pinto José Silva Mourão Rômulo Romeu Nóbrega Alves

BACKGROUND Fishing is one of the oldest human activities and constitutes a source of income and livelihood for millions of people, particularly in coastal regions. This study aimed to characterize the types of fish use and test whether there is a relationship between uses of fish in the communities studied. METHODS This study was conducted during the months of January to October 2013, on the ...

Journal: :Journal of vision 2010
Lore Thaler Melvyn A Goodale

In their day-to-day activities human beings are constantly generating behavior, such as pointing, grasping or verbal reports, on the basis of visible target locations. The question arises how the brain represents target locations. One possibility is that the brain represents them metrically, i.e. in terms of distance and direction. Another equally plausible possibility is that the brain represe...

2010
Christian Thiemann Fabian Theis Daniel Grady Rafael Brune Dirk Brockmann

Territorial subdivisions and geographic borders are essential for understanding phenomena in sociology, political science, history, and economics. They influence the interregional flow of information and cross-border trade and affect the diffusion of innovation and technology. However, it is unclear if existing administrative subdivisions that typically evolved decades ago still reflect the mos...

Journal: :Ecological applications : a publication of the Ecological Society of America 2010
Sarah J Teck Benjamin S Halpern Carrie V Kappel Fiorenza Micheli Kimberly A Selkoe Caitlin M Crain Rebecca Martone Christine Shearer Joe Arvai Baruch Fischhoff Grant Murray Rabin Neslo Roger Cooke

As resource management and conservation efforts move toward multi-sector, ecosystem-based approaches, we need methods for comparing the varying responses of ecosystems to the impacts of human activities in order to prioritize management efforts, allocate limited resources, and understand cumulative effects. Given the number and variety of human activities affecting ecosystems, relatively few em...

Journal: :Ecology letters 2013
Joseph M Northrup George Wittemyer

Global demand for energy is projected to increase by 40% in the next 20 years, and largely will be met with alternative and unconventional sources. Development of these resources causes novel disturbances that strongly impact terrestrial ecosystems and wildlife. To effectively position ecologists to address this prevalent conservation challenge, we reviewed the literature on the ecological rami...

2000
Riichiro Mizoguchi

The change has already begun. It is not a simple change but a Revolution in the sense of speed and its impact. It is called IT(Information Technology) revolution and has been giving great impacts on all kinds of human activities. Educational and learning support activities are not exception. Rather, I could say that the impact on them is larger than those on others. This extended abstract discu...

Journal: :Current Biology 2002
James S Albert

Deep and puzzling evolutionary questions are still being raised by the unfashionable work of systematic biologists. James S. Albert describes some such work and argues why we need much more of it in the face of unprecedented loss of species through human activity.

Journal: :IEEJ Transactions on Industry Applications 1991

Journal: :Landscape Ecology and Management 2005

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