Sentences with phrase «wild populations such»

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.

Not exact matches

Gene drives spreading through wild populations would not respect international boundaries, so they might run afoul of international treaties, such as the Cartagena Protocol on Biosafety that governs cross-border movement of genetically engineered organisms.

«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.

But others suggest that the health of some of the region's salmon populations — such as bountiful pink salmon off of Oregon and Washington and still thriving Alaskan runs — shows that with proper management we may be able to retain lively populations of both wild salmon and fishers.

Salmon farms were already known to weaken wild populations by exposing them to lice infestations, interbreeding with escaped farmed fish, and contaminants such as antibiotics, pesticides, and disinfectants.

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.

And, adds Cunliffe, «no one, not even archeologists in their wildest dreams, had expected such a high steppe genetic content in the populations of northern Europe in the third millennium B.C.»

Increased focus on enforcement in a few such areas could help interrupt poaching activities and restore wild elephant populations.

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.

In wild populations, TL correlates with life - history traits such as lifespan and survival [9,10].

As global populations of domestic bee pollinators decline, it is of utmost importance for us to understand what factors attract wild pollinators such as hoverflies to flowers, and how these preferences differ in the face of environmental change.

As global populations of domestic bee pollinators decline, it is of utmost importance for us to understand the factors that attract wild pollinators such as hoverflies to flowers, and how these preferences differ in the face of environmental change.

They provide control on populations of small mammals and birds, such as beaver, geese and wild turkeys, and can help to provide stability in the composition and numbers of general wildlife populations (Voigt and Berg 1999, Gompper 2002).

The hope is that the method could be used to engineer populations of insects in the wild, with the goal of reducing mosquito - borne diseases such as malaria or dengue fever, or controlling agricultural pests, such as those that transmit citrus greening disease.

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.

Because gene drives could rapidly propagate novel DNA through an entire population in the wild, they could be used, proponents say, to eradicate marauders such as the cane toads overrunning Australia.

In normal times, wild populations would evolve around such problems, but humans are introducing so many challenges so rapidly that evolution doesn't have time to generate the needed adaptations.

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.

The population of heartworms not exposed to the drugs — heartworms living in wild canids such as wolves, foxes and coyotes, and in untreated domestic dogs — helps to dilute the heartworm gene pool, keeping the resistant genes from predominating.

Dr. Rahm has a special interest in reptile medicine and during his senior year in veterinary school was able to participate in externships with two prominent reptile medicine specialists, where he was able to assist in treating various animals such as alligators, sea turtles, Burmese pythons, and snapping turtles, while also taking part in trap / neuter and release efforts with the wild population of iguanas in the Florida Keys.

Your gift during Morris Animal Foundation's Season of Hope supports studies such as our Healthy Animals Initiative to help protect wild bird populations from threats like lead exposure.

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.

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.

An affiliated group of management agencies, landowners, academics, and non-profits concerned with the conservation of the island fox has convened since 1999 to exchange information regarding the status and trend of the six island fox subspecies, and to work cooperatively on island fox conservations issues in such areas as captive breeding, wild population management, veterinary issues, and educational / outreach.

The San Miguel population, which was once the most endangered, made such a strong recovery through the captive breeding programme, and the wild population was doing so well, that all releasable individuals were returned to the wild in July 2007.

Though wild dogs can often recover faster from population decreases due to their high reproductive rate, the researchers concluded that such practices place added pressure on species that are already suffering from habitat loss and restricted ranges and require further action to monitor and minimize.

All efforts must be made to prevent this pathogen entering the wild amphibian population (eg, via release of infected animals or the discarding of contaminated water or fomites in amphibian habitats such as garden settings).

Even in the absence of changes in external factors, many natural systems exhibit substantial internal variability — such as booms and busts in wild populations — that can last for long periods.