Sentences with phrase «wild species populations»

«Many studies have shown that climate change is affecting the distribution of wild species populations.

Not exact matches

Among other things, the MSC seeks proof that wild fish populations can endure current levels of exploitation, and that the fishery is not laying waste to other species or ecosystems.

Declines in populations of pollinators now threaten both the yields of major food crops and the survival of wild plant species.

Maui Nui Venison, a sustainable operation based in Hawaii, harvests wild Axis Deer on the islands of Maui and Moloka'i to keep the invasive species populations under control, and through partners like Nicky USA, provides this truly wild protein to consumers.

Shedd Aquarium, Lincoln Park Zoo, Chicago Zoological Society's Brookfield Zoo and the 226 other member organizations of the Association of Zoos and Aquariums (AZA), have launched a new effort focused on saving the world's most vulnerable species from extinction and restoring them to healthy populations in the wild.

Researchers at the University of York mapped population data for 62 wild bee species sprinkled across the United Kingdom along with neonicotinoid treatment in local oilseed rape (Brassica napus) fields over 18 years.

The analysis uncovered major changes in population growth; with the exception of wolves, all species experienced a drop in population growth rates immediately following the collapse, and three species — wild boar, moose, and brown bears — exhibited significant reductions in population growth throughout the decade following the collapse, with declines evident in 85 % or more of the study regions.

What began with one individual has now spread rapidly throughout the population of devils in Tasmania, killing almost all the animals and threatening survival of the species in the wild.

Although researchers traditionally used archaeological evidence to determine when our species domesticated another, DNA can also show when a population went from wild to mild.

As conservationists work to recover endangered species populations, taking individuals that are maintained and protected under human care and reintroducing them into the wild, it becomes apparent that there is a great deal to learn about the science of species recovery.

There is a plan, however, to maintain a genetically pure population of Cuban crocodiles by breeding the species and then releasing them into the wild.

Hammerhead sharks, which have recently received new protections from the UN Convention on the Conservation of Migratory Species of Wild Animals, are experiencing drastic population declines in excess of 90 % in several parts of world.

«Pet ferrets could pose a risk to wild polecat species by introducing their poor genetic material into wild polecat populations,» Ernest explains.

«Large - scale conservation strategies such as Panthera's Jaguar Corridor Initiative, which are instrumental to protect broadly distributed species such as jaguars, maintain their connectivity, and by doing so to ensure their long - term survival, need to incorporate genetic monitoring of wild populations to fully understand how these species respond to environmental changes and increasing levels of human impacts,» Wultsch said.

Identifying which species produce the newly discovered click varieties could help scientists better keep tabs on wild dolphin populations and movements.

The population - level impact of these viruses on free - living wild bird species is currently unknown.

Trade in cactus species occurs at national and international levels and is often illegal, with 86 % of threatened cacti used in horticulture taken from wild populations.

As colony collapse disorder and other maladies continue to devastate honeybee populations, researchers are turning their attention to alternative pollinators — the thousands of native bee species throughout the country — and are looking for ways to make croplands more attractive to these wild bees.

Lowest recorded population: 15 in the wild It's ironic that one of the most threatened species, blue iguanas, may be the longest - lived lizard in the world: the oldest individual made it to 67.

«This ongoing study provides us information about these unique birds that was essentially lost when the populations disappeared in the wild and will help us with our ongoing efforts to recover this species.»

But by the 1990s, white - tailed deer populations in parks had swelled to such size that many species of native wildflowers such as trillium and lilies largely disappeared, replaced by wild ginger and exotic species such as garlic mustard and Japanese stiltgrass, plants not favored by deer.

The intricate social hierarchy of the California condor, an endangered species, is something that could not be studied until recently due to the severe reduction of this population in the wild.

The impact on wild populations could be profound, they say, and because the processes of reproductive development are remarkably well conserved among mammals, these effects are very likely to be occurring among other mammalian species, including humans.

The best of the news items covers the critically endangered Amur leopard (Panthera pardus orientalis), probably the rarest cat species on the planet, with a wild population of approximately 40 to 50 individuals.

Today, in a paper in the open access journal ZooKeys, a team of bat biologists led by Don Buden of the College of Micronesia published a wealth of new information on this «forgotten» species, including the first detailed observations of wild populations.

«If we are to conserve remaining wild populations of elephants, we must close all markets because, under current levels of corruption, they can not be controlled in a way that does not provide opportunities for illegal ivory being laundered into legal markets,» said the paper's author, Elizabeth Bennett, WCS Vice President for Species Conservation.

The species» early evolutionary origin is good news: it suggests that cacao has had enough time to diversify genetically, with each wild population adapting to its local habitat.

Without firm data on the scale of international trade in individual species, scientists can only guess at its impact on wild populations.

The team also compared the response of flies in cages (which experienced the local temperature and humidity, but not interactions with other species) with the abundance of D. birchii in wild populations at the same sites along mountain gradients (where other species were also present), to test whether interactions among species affect responses to climate change.

Until recently, there were six known ape Laverania species that exhibited strict host specificity (association with a single host species) in wild populations — three in chimpanzees and three in western gorillas.

I would argue it is now the only realistic way to maintain wild populations of some species.

While populations of wild animals have halved, only about 1 to 2 per cent of species have been lost so far — at least in well - studied groups such as mammals and birds.

Engineered gene drives, which have the potential to spread desirable genes throughout wild populations or to suppress harmful species, have received a lot of recent attention because of their potential to control organisms, such as mosquitoes that carry diseases such as Zika virus, malaria and dengue fever.

«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.

From deciding which species should be restored, to sequencing their genomes, to anticipating how revived populations might be overseen in the wild, Shapiro vividly explores the extraordinary cutting - edge science that is being used — today — to resurrect the past.

As a result, understanding changes in population size for social species — several of which, such as African wild dogs and southern resident killer whales, are endangered — requires understanding of what goes on within groups and how individuals fare when they strike out on their own.

There are fewer than 250 California condors left in the wild, but species populations are increasing thanks in part to captive breeding programs at American zoos.

Gene analyses reveal that there are not one, but four giraffe species (09/09/2016) Scientists from the Senckenberg and the Giraffe Conservation Foundation have analysed the genetic relationships of all major populations of giraffe in the wild... more

Biologists at the Ash Meadows Fish Conservation Facility, less than a mile from Devils Hole, have successfully established a reserve pupfish population that is now reproducing on its own in a 100,000 - gallon refuge tank designed to replicate the species» home in the wild, right down to its shape and temperature.

Drive homing occurred at high efficiency (> 90 %) in all four species, strongly suggesting that refined versions may be capable of altering entire wild populations.

One involves engineering reproductive isolation (speciation) between populations that can otherwise interbreed, so as to limit gene flow; a second involves creating genetic methods that can, reversibly, drive populations of invasive species and / or vectors of disease to local extinction; a third involves creating genetic methods that can drive — in ways that are easily reversible — the spread of beneficial genes into wild insect populations so as to prevent the spread of vector - borne disease.

Despite significant progress in reestablishing populations of ferrets in the wild, recovery assessments continue to show that the end goal of establishing self - sustaining wild populations, and removing the ferret from the endangered species list, remains a moving target.

He is Director of Genetics at the San Diego Zoo Institute for Conservation Research and oversees research efforts in cell culture and cryobanking, cytogenetics, population genetics, conservation breeding, evolution and systematics, and applications of genomics technologies to conservation efforts for managed and wild populations of threatened and endangered species.

Free - roaming cats and dogs reduce wild - animal populations, including threatened or endangered species in local areas.

Although trapping is outlawed, loss of habitat and illegal trapping has greatly reduced wild populations of this species.

Wild populations are considered vulnerable, and in 2014 the species was placed on the Endangered list by the IUCN.

If any thing else urbanization probably increases the cat population by a little along with huge increases n pollution, traffic, buildings, boys with bee bee guns, pesticides, Urbanization also has the nasty side effect of decreasing natural resources for all species of wild life including birds.

Results from these studies were incorporated into many Species Survival Plan Programs, helping to create genetic safety nets for the declining populations in the wild.

Self - sustaining captive populations are critical to the long - term survival of many wild cat species.

California sea lion adenovirus 1 (CSLAdV - 1) has been associated with hepatitis and enteritis in several wild and captive populations of diverse pinniped species.