Sentences with phrase «suitable habitats by»

Warmer stream temperatures, increased risk of habitat - damaging flooding, and reduced summer streamflows are expected to reduce suitable habitat by 47 percent for native fish like trout and salmon.

Not exact matches

The key objective of this proposal is to maximise the current Murray cod spawning response by providing suitable habitat inundation and associated food resources throughout their critical breeding period (mid Oct — mid Dec).

In the long term, the species requires more habitat, which perhaps could be accomplished by making the adjacent federal land in Siuslaw National Forest suitable for martens.

«So basically, their suitable habitat is influenced by climate changes a lot more than it's influenced by evolutionary changes,» she said.

The warming of the lake has reduced the suitable habitat for those species by 38 percent since the 1940s, the team found.

One positive finding of the ecological niche modelling study is that while the ranges of many species are expected to contract, much of the remaining suitable habitat for many species will be located within existing protected areas, and that the recent creation of new reserves such as Itombwe and Kabobo in the Democratic Republic of Congo, have greatly increased the protection of some species under threat by future climate change.

The study models predicted that, on average, a shocking 75 percent of all remaining suitable habitat across all species examined would disappear by the year 2080.

And this mingling isn't accidental, Gibson argues, noting that the two species are not simply forced together by limitation of suitable habitat.

Until now, most estimates of how many species are threatened by climate change have been based on theoretical studies that look at the climatic and environmental conditions that species need to survive, and overlay this with estimates of how much suitable habitat will remain as the world warms.

The environmental impact assessment states that while construction activities may temporarily displace wildlife, ``... it is expected that wildlife species would move to suitable habitat in the vicinity and would not be significantly impacted by short - term construction activities.»

It can be challenging to find a suitable habitat for bald eagles in a city, but the advantage of an urban reintroduction, he says, is that more people can enjoy the birds and be educated by their presence.

Once Beissinger and his team better understand which species are moving and why, park managers may be able to help species survive by removing barriers to their dispersal to different elevations or by relocating them to more suitable habitats.

According to research by the U.S. Forest Service's Pacific Southwest Research Station and its collaborators, for pools within alpine meadows to be suitable habitat for laying eggs and sustaining tadpoles, little things mean a lot.

While some species were less intimidated by the presence of humans, each had its own unique requirements in terms of what constitutes a suitable habitat and the length and width of possible corridor connections.

«The habitats of many chameleon species, and not only, are highly threatened by the ongoing deforestation in Madagascar and we need rapidly to expand our knowledge about the biodiversity, so that suitable conservation measures can be taken,» he stresses.

The reintroduction has been hampered by rules that require recapture of wolves who set up territories outside the narrowly defined recovery area and that do not allow release of captive wolves into New Mexico's Gila National Forest, where there's extensive suitable habitat.

Cubic Feet: 1.9 Suitable Housing For: 1 - 3 Dwarf Hamsters (Campbell Dwarf Hamsters and Winter White Dwarf Hamster pairs generally need more floor space, Roborovski pairs get along better in this cage) Average Price: $ 35 - $ 65 New Pros: Flexible and durable plastic construction, well made accessories, integrated carrier, expandable with additional habitats and accessories, full length second floor with walls Cons: Floor space is partially dominated by wheel and tube access to second level.

Cubic Feet: 1.3 Suitable Housing For: 1 - 2 Dwarf Hamsters (Campbell Dwarf Hamsters and Winter White Dwarf Hamster pairs generally need more floor space, Roborovski pairs get along better in this cage) Average Price: $ 25 - $ 45 New Pros: Flexible and durable plastic construction, well made accessories, integrated carrier, expandable with additional habitats and accessories Cons: Not suitable for campbell dwarf hamster or winter white dwarf hamster pairs (roborovskis do better), floor space is partially dominated by wheel and tube access to toSuitable Housing For: 1 - 2 Dwarf Hamsters (Campbell Dwarf Hamsters and Winter White Dwarf Hamster pairs generally need more floor space, Roborovski pairs get along better in this cage) Average Price: $ 25 - $ 45 New Pros: Flexible and durable plastic construction, well made accessories, integrated carrier, expandable with additional habitats and accessories Cons: Not suitable for campbell dwarf hamster or winter white dwarf hamster pairs (roborovskis do better), floor space is partially dominated by wheel and tube access to tosuitable for campbell dwarf hamster or winter white dwarf hamster pairs (roborovskis do better), floor space is partially dominated by wheel and tube access to top level.

If even Bjorn Lomborg sees the merits of the world spending $ 100 billion a year to address global warming, is there anyone who can find a downside to raising a grand total of $ 35 million a year (beyond money already committed by national governments) to protect 42 «source sites» — areas of tiger territory with populations that are sufficiently healthy to repopulate neighboring regions with suitable, but tiger-less, habitat?

Altered fish communities: Warmer lakes and streams will certainly provide more habitat for warmwater species as conditions in northern reaches of the basin become more suitable for warmwater fish and as lakes and streams are vacated by cool - and coldwater species.91 Habitat for coldwater fish, though not expected to disappear, will shrink substantially, though it could also expand in some areas, such as Lake Superior.

This bird will see its alpine habitat constricted by a rising tree line, and without the ability to travel long distances to more suitable mountain ranges further north, the white - tailed ptarmigan faces a grim future in the conterminous United States.

Suitable habitat for the Asian Tiger Mosquito, which can transmit West Nile and other vector - borne diseases, is expected to increase in the Northeast from the current 5 % to 16 % in the next two decades and from 43 % to 49 % by the end of the century, exposing more than 30 million people to the threat of dense infestations by this species.48

Biological impacts will be determined by this plasticity and the resiliency of organisms to find suitable habitats.

Those that are effectively trapped by habitat fragmentation in areas where climate changes detrimentally, even though suitable climatic habitat may exist for them elsewhere in the world.

Projected incursions inland of suitable climate may not be matched by the expansion of favored habitat, with one exception — the Great Lakes.

Some species of marine mammals will be able to take advantage of increases in prey abundance and spatial / temporal shifts in prey distribution toward or within their primary habitats, whereas some populations of birds and seals will be adversely affected by climatic changes if food sources decline or are displaced away from regions suitable for breeding or rearing of young.

be decontaminated, improved and reclaimed by planting suitable species to enhance its natural biodiversity, or by restoring habitat «corridors» to allow animals to access wider territories and maintain genetic diversity.

For instance, evolution can decrease extinction risks by allowing populations to adapt to changing climates, whereas anthropogenic landscape barriers can increase risks by limiting dispersal into newly suitable habitats.

In the Succulent Karoo biome of South Africa, 2,800 plant species face potential extinction as bioclimatically suitable habitat is reduced by 80 % with a global warming of 1.5 - 2.7 °C above pre-industrial levels (see Table 4.1).

IPCC forecasts are for warming to occur faster than evolution is considered to occur, so impacts will be determined by this plasticity and the resiliency of affected organisms to find suitable habitats.

«These differences in richness and changes to community composition in oil palm plantations compared to forest habitats are underpinned by marked differences in both habitat structure and microclimate characteristics,» the researchers wrote, noting that the plantations, for instance, lacked a suitable environment for amphibian reproduction, foraging and shelter.

If on the other hand the moderately impacted land used in organic agriculture made it a suitable habitat for several important native species of wildlife that are threatened by conventional agriculture, then perhaps it would be ok to use a little more land for agriculture.