Sentences with phrase «into wild populations»

In addition to harboring diseases that affect humans, such as ringworm, distemper, toxoplasmosis, leptospirosis and rabies, infected pets have the potential to transmit diseases into wild populations of animals.

However, the problem is unsolved of how to make these strains useful by driving the genes concerned into wild populations, and especially how to ensure the necessary absolutely unbreakable linkage of these genes to a driving system.»

It turns out that within five to 11 generations of fish (about 25 to 50 years), the foreign genes introduced into wild populations through hybridization are removed by natural selection.

«These associations support the hypothesis that Nosema escaped into wild populations from heavily infected commercial colonies, at least during the earlier years of bumble bee domestication in the U.S.,» she said.

In other words, introducing it into a wild population of mosquitoes would achieve the same result as placing a group of brown - eyed humans into a blue - eyed population: gradually, fewer children would be born with the recessive, blue - eyed gene.

Replacing ordinary mosquitoes in the wild with genetically modified mosquitoes hasn't yet been attempted, though scientists have been working on «gene drive» techniques that cause DNA modifications to spread quickly into a wild population via ordinary breeding.

Not exact matches

The Nature Museum is raising juvenile snakes for eventual release into the wild, and studying the best techniques to help the snake population recover.

A team of researchers from several Portuguese centres and the Autonomous University of Barcelona (UAB) has analysed the presence of mercury, cadmium and lead in the blood of the 121 Griffon vultures (Gyps fulvus) in Portugal and Catalonia, and compared the concentration between populations of wild Griffon vultures and the individuals that were admitted, in a weak state — due to malnutrition — and wounded, into rehabilitation centres.

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.

Fortunately, an underdominance - based system should make it fairly easy to return future generations to their original, unmodified state by releasing enough wild mosquitoes back into the population.

«Our recovery could be stalled, at best, by failing to be able to insert a more diverse gene pool into the existing wild population.»

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.

These diseases would endanger the already - threatened wild population if the orang utans were released back into their native forests of Indonesia and Malaysia.

New DNA analyses provide insight into the origin of the first wild Norwegian sea oyster populations.

Wild populations quickly declined as European settlers moved into the area.

In 2016, for example, researchers reported that they had created a CRISPR / Cas9 gene drive that forces a fertility - reducing gene modification into female Anopheles gambiae mosquitoes — which could quickly reduce local Anopheles populations if unleashed in the wild.

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

«Any attempts to enhance the genetic diversity of ferrets by using wild polecats should be done ethically and legally, and should ensure that domestic ferrets do not breed into wild ferret or polecat populations.»

Ecologists worry that their accidental release into the wild could seriously harm native crayfish, because a single individual can start a self - sustaining population, leading some states to prohibit their ownership.

«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.

This means the Nottingham group can transfer these tiny bits of genetic information from the wild relatives into wheat on a large scale creating a step change in the search for new varieties of wheat that will cope with disease and climate change and help feed a growing population.

Making use of the DNA in blood samples collected from wild macaws, the team found that over time the Pantanal group has divided into two genetically different populations, whereas the north and northeast groups have fused into one.

The researchers found that smaller reptiles and those released more often into the wild were more likely to establish self - sustaining populations.

Behra points to a project to collect crocodile eggs from northwestern Madagascar that has increased the wild crocodile population and put money into the pockets of local people.

The study suggests that some diseases are being driven into wild bumblebee populations from managed honeybees.

Wild populations of cacao across the Americas may therefore be treasure troves of genetic variation, which could be bred into cultivated strains to make the latter more resistant to disease and climate change, and perhaps even create new flavors of chocolate.

Into the Wild: Parallel Transcriptomics of the Tsetse - Wigglesworthia Mutualism within Kenyan Populations.

«This particular Wolbachia strain is not spreading into the wild mosquito population as we had hoped,» says lead researcher Scott O'Neill of Monash University in Clayton, Australia.

By using genetic analysis to assess a subset of historical reintroductions into Tanjung Puting National Park, Indonesia, they found that orang - utans from a non-native and genetically distinct subspecies were unwittingly released and have since hybridized with the Park's wild population.

Over 14 years, from 1971 to 1985, they released at least 90 orphaned and displaced apes into the surrounding wild population.

«Could an accidental release of MCR - bearing organisms into the environment result in their spreading potentially deleterious mutation to the vast majority of individuals in a wild population?»

The company says they can be effective at controlling pest populations: Altered male mosquitoes are released into the wild to mate with females.

Our work demonstrates the power of ancient genomes to reconstruct the complex genetic changes that transformed wild animals into their domesticated forms, and the population context in which this process took place.

He was present when the first wolves were released back into the wild in the late 1980s and helped support the wild population as it grew to its peak in the 2000s.

Unfortunately this means there's little genetic diversity flowing into the fledgling wild wolf population, which compromises the ability of the 58 wolves in Arizona and New Mexico to grow healthily and sustainably.

Arizona authorities have long opposed the release of captive wolf families into the wild, even though that is the most reliable means of bringing in more genetically diverse animals to ensure the survival of the wild population; currently, nearly all the wolves are related to each other as if they were siblings.

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.

Based on our model, and our observations near greenhouses, it is probable that destructive pathogens have been spilling over into wild bee populations since the collapse of commercial B. occidentalis during the late 1990s, and this has contributed to the ongoing collapse of wild Bombus sensu stricto.

Many remnant populations of animals in the wild and in captive breeding programs are facing what is called an «extinction vortex,» as inbreeding forces them into an accelerating loss - of - fitness spiral.

Progress and expansion into previously undisturbed areas have placed increased external pressures on wild animal populations, and the number of injured wildlife cases will rise as land within the south is developed.

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.

This is a flea that is specific for rabbits, it was released into Australia in 1993 to try and aid the spread of Myxomatosis in the wild rabbit population.

However, because 71 percent to 94 percent of a population must be sterilized, with no immigration, to reduce its size — and because people constantly release cats into the wild — managed cat colonies can persist for decades, if not forever.

We suspect at least some of the skepticism is rooted in the concern among groups like Alley Cat Allies that such studies might turn public opinion against their preferred method of reducing the feral - cat population: trap, sterilize and release them back into the wild.

By participating in TNR and teaching others its benefits, cat people not only help control the free - roaming cat population, but helps prevents future kittens born into the wild from imminent danger or death.

Hence, a growing trend in the U.S., and particularly in the states of Florida and California, is to attempt to manage populations of feral cats by trapping, sterilizing and vaccinating them, and then releasing them back into the wild.

On San Miguel and Santa Rosa, increased population numbers and the absence of golden eagles has allowed initial releases of foxes back into the wild.

Each year, billions of captive - bred juvenile salmon are released into rivers in North America, Asia and Europe to give a bump wild populations, but their survival is 10 to 20 times lower than that of wild salmon, notes the study.

Cortez» invasion was brutal but large numbers of horses escaped into the wild and were absequently domesticated by the native population.

Blooms there have severely reduced fish populations and turned wild streams into sludge pits.