Results 211 to 220 of about 89,482 (257)
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Sociology of Development, 2016
The paper examines three emergent migration flows, each with specific features that can be described as extreme. The effort organizing the paper is to understand conditions at places of origin that lead people to risk their lives in dangerous trips to escape those places of origin.
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The paper examines three emergent migration flows, each with specific features that can be described as extreme. The effort organizing the paper is to understand conditions at places of origin that lead people to risk their lives in dangerous trips to escape those places of origin.
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Habitat loss refers to the disappearance of natural environments that house specific plant and animal species. Habitat loss encompass three main types: habitat destruction, degradation, and fragmentation. Habitat destruction involves extensive devastation of natural environments, habitat degradation results from the depletion of vital resources like ...
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1995
Abstract There is widespread concern over the damage that humans are inflicting upon the environment. One of the consequences of this is a reduction in area of various habitats. Further habitat loss may be expected due to processes such as industrial development, agricultural intensification, deforestation, and sea level rise. There is a
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Abstract There is widespread concern over the damage that humans are inflicting upon the environment. One of the consequences of this is a reduction in area of various habitats. Further habitat loss may be expected due to processes such as industrial development, agricultural intensification, deforestation, and sea level rise. There is a
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Upland habitat loss as a threat to Pantanal wetlands [PDF]
Conservation Biology, 2016 The fate of Pantanal, one of the world's largest, most pristine and diverse wetlands, stands in the balance. The most recent (2014) and comprehensive land-cover change assessment of the upper Paraguay River Basin (UPRB), comprising both lowlands (Pantanal floodplain) and their surrounding upland savannas (Cerrado plateaus), shows the extent of decline ...
Roque, Fabio O. +6 more
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Habitat Loss, Fragmentation, and Restoration
Restoration Ecology, 1999AbstractThe loss and fragmentation of habitat is a major threat to the continued survival of many species. We argue that, by including spatial processes in restoration management plans, the effects of habitat loss and fragmentation can be offset. Yet few management plans take into account spatial effects of habitat conservation/restoration despite the ...
Gary R. Huxel, Alan Hastings
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Species loss after habitat fragmentation
Trends in Ecology & Evolution, 2000Currently, we are losing large areas of natural and seminatural habitats. The big conservation question now is: how far does this habitat loss translate into species loss? Species–area relationships (SAR) describe the increase in the number of species S with increasing area A of a habitat. Generally, SAR obey a power law with an exponent
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No Net Loss of Fish Habitat: A Review and Analysis of Habitat Compensation in Canada
Environmental Management, 2005The achievement of No Net Loss (NNL) through habitat compensation has rarely been assessed in Canada. Files relating to 124 Fisheries Act Section 35(2) authorizations issued by Fisheries and Oceans Canada for the harmful alteration, disruption, and destruction of fish habitat (HADD) were collected and reviewed.
D J, Harper, J T, Quigley
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Habitat Loss, Fragmentation, and Degradation
2019This chapter describes habitat loss, fragmentation, and degradation. Habitat loss poses the greatest threat to the variety of life on this planet today. It refers to complete elimination of habitats, along with their biological communities and ecological functions. Habitat loss usually results from the conversion of natural or semi-natural habitat into
Bradley J. Cardinale +2 more
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Habitat loss and fragmentation
Abstract The first response of many animals to altered environmental conditions is via behavioural adjustments. Habitat loss and fragmentation represent major alterations to natural environments and are key contributors to the global biodiversity crisis. This chapter illustrates how animal behaviour can be modified in response to habitatMichael Sievers +2 more
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Habitat Loss, Agrobiodiversity, and Incidental Wildlife Loss
2017Producing food can carry a steep ecological price. Over the past century, the need to grow enough food to support an expanding global population has resulted in vast swaths of forests and wetlands being converted into farmland or pastures. This development is a result of the industrialization of the food production systems around the world, the ...
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