Sentences with phrase «wild populations»

These giant snake laws do nothing to protect wild populations of snakes.

This adaptation, however, has never been seen outside the laboratory in wild populations.

«The strengths of our study are that we have confirmed these results in a completely different animal group, and that our data comes from wild populations,» she concludes.

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

Nevertheless, the study suggests that mosquitoes can be genetically modified to compete in nature with wild populations and spread resistance to the malaria - causing parasite.

After 18 weeks, this would have increased to around 100 %, and the infection would then spread to other wild populations at a rate of around 2 km per week.

This transformation is consistent with the observed pattern of variability of wild populations [35], [38].

It results in smaller eggs and other genetic changes that could actually harm wild populations.

Their goal is to set up schemes to supply the world market while ensuring that wild populations stay healthy.

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

This enables the spread of specified genetic alterations through targeted wild populations over many generations.

Featured presentations and discussions will focus on habitat design, life support, water quality, nutrition, reproduction, health, acquisition, and long - term wild population conservation.

The science behind manipulating wild populations in national parks is pretty weak.

It was found that wild population swings had occurred over centuries.

Unfortunately, it is still not widely recognized that wild populations of many native bees are also in danger of collapse.

Resistance to the disease has built up over time in wild populations, but the virus is still fatal to domestic rabbits.

Thus, they are relatively inexpensive, hardy, generally free of parasites and put no pressure on wild populations.

Fraser, himself an avid fisherman, says these results provide hope for wild populations that were initially negatively affected by human - induced hybridization.

«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.

Keep your eyes peeled for some of the 360 - plus species that have been recorded here, from orange - chinned parakeets and hummingbirds to one of Costa Rica's largest remaining wild populations of scarlet macaws.

Harris is now exploring ways to increase wild populations of these protective bacteria.

«Our findings appear to be the first demonstration of this occurring in wild populations as viewed by likely predators.»

So if the disease were to enter the United States, it could potentially spread through wild populations across the country.

Conservationists say the demand boom is due to declining wild populations in Asia as well as high numbers of Chinese workers in Africa's resource and timber sectors, located in remote regions of the continent's interior.

«We also need to take the pressure off wild populations by investing in supply approaches such as ranching and wildlife farming which could lower the incentive to poach.

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

Mauritius is home to a large wild population of long - tailed macaques, which are valued in research in part because they are free of certain simian viruses.

To that end, the ban is probably a good thing to have in place, and I would argue that saving wild populations of such ecologically important creatures deserves whatever sacrifices businesses might need to make.

As their intake of displaced orang - utans increases, and as suitable habitat for reintroductions declines, there have been suggestions that they hybridize Bornean orang - utan subspecies — either in isolated, «mixed» populations, or within existing wild populations.

In the future, scientists could use meiotic drive to pass along specific chromosomes in animal experiments or in efforts to manage wild populations of animals.

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

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.

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

Salmon farming has also been criticized for reducing wild populations of anchovies and sardines, which are used to make fish - meal pellets.

This buys time to develop and implement an enforceable «clean trade system» that could allow salamanders to be imported again, but in a way that will minimize the chance of the pathogen reaching vulnerable wild populations in North America.

With increased genetic variability and a decreased susceptibility to Sylvatic Plague, the recovery effort may one day achieve the goal of sustainable wild populations of Black - footed Ferrets across their historic range.

Prior to this study, the only wild populations found to be affected had been those in the central and eastern United States.

The researchers want to keep their gene - drive experimental insects and other animals contained to protect wild populations, but also safeguard the potential humanitarian benefits of the technology.

To understand the social lives of these birds, the scientists observed wild populations of monk parakeets (Myiopsitta monachus), a small parrot, in Argentina and captive ones in Florida.

Take a night tour at Bonorong Wildlife Sanctuary, 30 minutes drive north of Hobart, and you'll get to feed the devils in a tug - of - war game; or join a Devil Tracker Tour at the Tasmanian Devil Unzoo on the Tasman Peninsula (about a one - hour drive south - east of Hobart) to help monitor wild populations.

Neither the selective pressure nor the evolutionary response could have been identified with the methods used by the majority of studies that examine how wild populations respond to environmental changes, which predominantly concentrate on changes in the phenotype.

«This accomplishment means we can collect and preserve milt (seminal fluid containing sperm) from wild populations without removing hellbenders from their environment.

In wild populations such as wolves and coyotes the tip of the tail may also be very dark or even pure black, again a color differentiation that will draw attention.

Indeed, one influential proponent of the policy, Soviet - trained missile scientist Song Jian, applied theoretical methods borrowed from European mathematicians to generate wild population growth projections for China that helped sway leaders to adopt the birth limit.

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.

So there are cases in wild populations where we believe changes, and many of them man - induced, are altering the impact of natural mortality from disease.»

Over the past few decades, a small international clan of scientists, alarmed by the sudden decline of corals, have created underwater nurseries aimed at «replanting» corals to buttress wild populations.

Rising temperatures may cripple Ethiopian wild populations of Arabica coffee, which have more genetic diversity than cultivated crops.