Sentences with phrase «of habitat fragmentation»

Another potential feedback might occur if reduced timber yields force loggers to compensate by enlarging the amount of area harvested, resulting in higher CO2 emissions through deforestation and associated fires, as well as increased rates of habitat fragmentation / degradation and species extinctions

«This is an important study as it clearly demonstrates the negative effects of inbreeding as a result of habitat fragmentation and isolation of small populations,» said TSA President Rick Hudson.

Your article on the study of habitat fragmentation in Borneo carried out in co-operation with loggers states that 75,000 hectares of primary forest in Sabah is being cleared to develop oil - palm plantations (22 October, p 7).

Your article on the study of habitat fragmentation in Borneo carried out in co-operation with loggers states that 75,000 hectares...

Not exact matches

The current fragmentation of global financial markets may be likened to habitat fragmentation in the natural world, in which large, continuous biological habitats are divided into a greater number of smaller eco-systems, isolated from each other by a matrix of dissimilar habitats, leading inexorably to broad ecosystem decay.

Common threats include: loss of nesting and roosting sites, habitat fragmentation by conversion or destruction of vegetation, habitat fragmentation by excessive exposure of nectar plants to herbicides and pollinators to pesticides, over-hunting, disruption of nectar corridors required by migratory pollinators, and competition by invasive species65.

A role - play activity will bring understanding of the environmental is & shy; sues of fragmentation and habitat loss.

Careful site selection for renewable facilities of all types is important to minimize the loss and fragmentation of wildlife habitat and forests that sequester carbon.

For the ecology of the western Amazon Basin, where the mountains meet the lowlands, the main consequence of proliferating dams is habitat fragmentation.

If the extinction trend continues apace, modern elephants, rhinos, giraffes, hippos, bison, tigers and many more large mammals will soon disappear as well, as the primary threats from humans have expanded from overhunting, poaching or other types of killing to include indirect processes such as habitat loss and fragmentation.

A new analysis forecasts severe habitat fragmentation in the western Amazon Basin if some of the 160 planned dams are built in the region, where 142 dams are already.

Recent breakthroughs in biology had suggested that fragmentation of habitat inevitably threatened species.

On a per - unit - area basis, the cannabis grows resulted in 1.5 times more forest loss and 2.5 times greater fragmentation of the landscape, breaking up large, contiguous forest into smaller patches and reducing wildlife habitat.

Audubon pushed to ensure that the guidelines address habitat fragmentation, one of the biggest potential impacts of wind development on birds.

Pressure from poaching, decimation of their prey base, and habitat fragmentation have diminished the population of Amur tigers (also called Siberian tigers) to fewer than 500.

With habitat fragmentation, the wall could cut off ocelot, as well as black bear, populations in Texas and Mexico from other members of their species, leaving some populations too small to persist.

The team of researchers highlights the need to tackle at least the following three areas of research for the rest of the felids: differentiating habitat loss from the effects of fragmentation using theoretical scenarios; selecting priority areas for conservation, and analysing the consequences of habitat loss.

In a letter publishing Monday in Frontiers of Ecology and the Environment, Norma Fowler and Tim Keitt, both professors in the Department of Integrative Biology, examine what would happen if more of Texas» roughly 1,200 miles of border with Mexico were to be walled off, contributing to habitat destruction, habitat fragmentation and ecosystem damage.

According to the new study, the main reasons for the limited information on the effect of habitat loss and fragmentation for felid conservation are «the lack of both financing for research and communication between managers and researchers,» highlights Palomares.

To assess the situation of the Iberian lynx and other felid species that live in the wild on our planet, a team of Brazilian and Spanish scientists has reviewed the scientific literature that exists on the main threat for these mammals: the loss and fragmentation of their habitats.

«Certainly, as a result of that, it has resulted in a lot less loss and fragmentation of Wyoming's sagebrush habitat.»

In the Santa Monica Mountains near LA, the fragmentation of cougar habitat has gotten so bad, there's been a spike in cougar - on - cougar violence and inbreeding.

But the climate change still had a deep impact on anthropoid evolution, because habitat fragmentation and an increased level of allopatric speciation took place as a result.

Today, primary threats are habitat loss and fragmentation as a result of human development.

The research team lists the fragmentation of habitats and the intensification of agriculture as reasons for the decline of these «generalists.»

«Our studies clearly show that widespread species have a much more diverse intraspecific gene pool than species that are adapted to a specific habitat,» explains Dr. Jan Christian Habel of the Technical University in Munich, and he continues, «Once these animals — due to the fragmentation of their habitats — lose the opportunity to maintain this genetic diversity by means of exchange, they will no longer be able to adapt to changing environmental conditions in the future.»

The framework provides a clearer understanding of how habitat loss, land fragmentation and human interactions affect species survival.

«This demonstrates that while wood thrushes are sensitive to breeding forest fragmentation, it is not the main cause of declines, rather the loss and / or degradation of habitat in the winter range in Central America is the culprit,» Taylor said.

«Small population sizes and habitat fragmentation are well known threats to animals with limited mobility, but the impacts of these factors are hard to observe in wild populations,» said Forero - Medina, Species and Science Director for WCS's Colombia Program and a study co-author.

Our study shows that in addition to habitat fragmentation, the addition of human - made structures benefit ravens, whereas some species of raptors like the Ferruginous Hawk have been impacted and limited in nesting areas,» said study lead author Peter Coates, an ecologist with the USGS Western Ecological Research Center.

A new study by the Wildlife Conservation Society, Idaho State University and the U.S. Geological Survey suggests that habitat fragmentation and the addition of makeshift perches such as transmission polls in sagebrush ecosystems are creating preferred habitat for common ravens that threaten sensitive native bird species, including greater sage grouse.

This time period coincides with an ∼ 60 % demographic decline for horses inferred using PSMC analyses (Fig. 3A), potentially resulting from ongoing fragmentation of horse habitats around that time.

In addition, the effects of global warming and its associated disturbances (including floods, droughts, insects, and fires) will be compounded by pollution, resource exploitation, and habitat fragmentation, adding further challenges to species» ability to adapt.

A slew of factors associated with human activity threaten our natural landscapes, such as conversion of forests to agriculture, habitat fragmentation, and chemical contamination.

In addition, the project necessitated the closing and revegetation of unofficial «social» trails that had caused erosion and habitat fragmentation.

Harpy eagles are in danger of becoming extinct due to habitat fragmentation and habitat destruction.

In the last millennium, the role of humans has become a major factor in habitat destruction and fragmentation, and there is evidence of the imprint of humans on selective cultivation of species.

Instead of focusing on the nearly immeasurable moment when a species ceases to exist, he and other biologists say, science should focus harder on the forces that lead toward extinction — the destruction or fragmentation of habitat, the introduction of invasive species, the appropriation of water or other vital resources.

Climate change almost always exacerbates the problems caused by other environmental stressors including: land use change and the consequent habitat fragmentation and degradation; extraction of timber, fish, water, and other resources; biological disturbance such as the introduction of non-native invasive species, disease, and pests; and chemical, heavy metal, and nutrient pollution.

The study presented in the journal BioScience analyzed 276 published peer - reviewed articles that looked at the landscape effects of oil, natural gas, and wind production infrastructure worldwide, in order to compare their impacts on biodiversity and ecosystem services — wildlife mortality, habitat loss and fragmentation, noise and light pollution, invasive species, and changes in carbon stocks and freshwater resources.

The IPCC also reports that the resilience of many ecosystems around the world is likely to be exceeded this century by an unprecedented combination of climate change; disturbances associated with climate change, such as flooding, drought, wildfire, and insects; and other global change - drivers, including land - use changes, pollution, habitat fragmentation, urbanization, and growing human populations and economies.

Land use and land cover (LULC) change causes biodiversity decline through loss, alteration, and fragmentation of habitats.

Tar Sands and Unconventional Fossil Fuels In a previous post «Silence Is Deadly» I wrote, «The environmental impacts of tar sands development include: irreversible effects on biodiversity and the natural environment, reduced water quality, destruction of fragile pristine Boreal forest and associated wetlands, aquatic and watershed mismanagement, habitat fragmentation, habitat loss, disruption to life cycles of endemic wildlife particularly bird and caribou migration, fish deformities and negative impacts on the human health in downstream communities.»

In addition, the effects of global warming and its associated disturbances (including floods, droughts, insects, and fires) will be compounded by pollution, resource exploitation, and habitat fragmentation, adding further challenges to species» ability to adapt.

One concern is that harvesting massive amounts of naturally occurring seaweed for bioenergy could have comparable effects on atmospheric carbon dioxide and habitat loss or fragmentation as large - scale deforestation.

The causes of the declines in biodiversity are land clearing, land salinisation, land degradation, habitat fragmentation, overgrazing, exotic weeds, feral animals, rivers that have been pushed past their points of equilibrium and changed fire regimes.

«We were surprised that [they] appeared to be remarkably robust to the negative impacts of landscape - scale habitat fragmentation caused by reservoir creation,» she noted, «and saw no difference in the liana communities on islands compared to the mainland.»

They define this as «a seamless mosaic of forests and associated natural treeless ecosystems that exhibit no remotely detected signs of human activity or habitat fragmentation and are large enough to maintain all native biological diversity, including viable populations of wide - ranging species».

... According to a review by Lovich and Ennen (2013), the construction and operation of wind farms have both potential and known impacts on terrestrial vertebrates, such as: (i) increase in direct mortality due to traffic collisions; (ii) destruction and modification of the habitat, including road development, habitat fragmentation and barriers to gene flow; (iii) noise effects, visual impacts, vibration and shadow flicker effects from turbines; (iv) electromagnetic field generation; (v) macro and microclimate change; (vi) predator attraction; and (vii) increase in fire risks.

a seamless mosaic of forests and associated natural treeless ecosystems that exhibit no remotely detected signs of human activity or habitat fragmentation and are large enough to maintain all native biological diversity, including viable populations of wide - ranging species».