Sentences with phrase «rodent population of»

Buoyed by imaginative gadgets and disguises, and accompanied by his assistant and confidante, Dr. David Q. Dawson, Basil uncovers a villainous plot spearheaded by a slimy, contemptible sewer rat, Dr. Ratigan, to replace Moustoria, Queen of the Mice, with a look - alike robot that will leave him free to take control of the entire rodent population of London.

Some were ship's cats that ventured ashore with the early settlers; others perhaps were imported to control the rodent populations of the settlements.

Additionally, it should be worth pointing out that the extirpation of cats was an important factor in the spread of bubonic plague in Europe, due to the absence of cats as predators upon the plague - infected rodent populations of the continent.

Not exact matches

On Thursday, the museum — which bills itself as the oldest in Chicago — will turn out some of its rarer animal specimens, including a small rodent called a southern rock vole and two specimens of prairie chicken, a species whose population has rapidly declined due to habitat destruction.

Coyotes are part of our ecosystem and play a vital role in controlling smaller populations such as rodents, squirrels, mice and even Canada geese.

While the disease remains a modest threat in rural, undeveloped areas, Green warns that our current stable relationship with plague in the developed world is only as good as our control of urban rodent populations.

Closer to home, when carrying out ecological surveying in London, I had been required to liaise with the local authorities — for example, to get permission to trap rodents (alive) in public parks, in order to assess the size of their populations.

He proposed an independent study project in 1998, during his last year of his undergraduate work: studying hantaviruses within the rodent population in Montreal.

A mutation could be implanted in a critical mass of mosquitoes or rodents or some other pest, and the mutation would spread through the population for good or for ill.

The agouti, a cat - size rodent, may be sustaining populations of tropical palms, a role formerly occupied by megafauna

Elizabeth Addis, assistant professor of biology at Gonzaga University, and three senior biology majors are spending this summer researching why the local population of yellow - bellied marmots — those gregarious, burrowing rodents ubiquitous near the Spokane River — are not only surviving but thriving in the urban areas of Spokane.

Snakes eat rodents, so if you don't want the mice and rat populations to get out of control, snakes are necessary.

The bacterium normally thrives in rodent populations, passing from one animal to another via the bites of plague - infected fleas.

This work illustrates how the study of inbred canine populations can provide new insights into the genetic underpinnings of complex disease, bridging the gap between small rodent models and humans.

Based on estimates of Europe's total jackal population, the overall figures could be as high as 13,000 tonnes of animal remains and 158 million rodents, they claim (Biological Conservation, doi.org/bhxn).

«The work clearly shows that, despite their size, small rodents play a much larger role in seed dispersal for some tree species than previously recognized,» says Joshua Plotkin, a population biologist at the University of Pennsylvania who mathematically models evolutionary and ecological questions.

Trinkaus gained the clues to the Levantines» lifestyle from an unlikely combination of fossil evidence recovered by Israeli archaeologists; first, remains of the thigh bone (femur) and, secondly, remains of rodents that shared the caves with the two human populations, presumably nibbling their refuse.

Tissier and her colleagues had been looking into the effect of wheat - and corn - based diets in European hamsters because the rodent's population in France was quickly disappearing.

Inspired by natural gene drives, researchers have spent decades trying to perfect a system that might endow a population of mosquitoes with a malaria resistance gene, for example, or spread a lethal gene that cuts down a local population of invasive insects or rodents.

Ejaculate investment in a promiscuous rodent, Peromyscus maniculatus: effects of population density and social role.

The team is evaluating gene drives to spread infertility genes through rodent populations, as a potentially more humane method of vermin control.

Evolutionary rates of skull dimensions in different rodent populations.

Subsequent to this, weight - loss trials within human populations 35 - 52 as well as some rodent trials 22, 27, 53, 54 have used an array of IER protocols which permit a small energy load to be consumed on the «fast» day, so that energy intake is partially but not completely restricted.

The purpose of this review is to provide an overview of the IER literature to date, with a specific focus on its effects on cardiometabolic health indices in rodent and human populations.

In recent years, intermittent energy restriction (IER) has become the subject of considerable scientific interest as an alternative approach to weight - loss and / or improving metabolic health, and has been studied in rodent and human populations.

It will also be important to determine the effects of IER in other populations, for example in individuals with more profound metabolic derangements such as those with established T2DM, the evidence for which is relatively sparse.36 Additionally, given that several rodent and human IER (50 - 100 % ER on restricted days) trials have demonstrated metabolic improvements in the absence of overall ER 15, 22, 27, 31, 53,105, one can speculate that IER may have potential applications within non-overweight populations and as a maintenance strategy post-weight-loss.

She's designated as the subservient voice of reason for the protagonist, Surly (voice of Will Arnett), a purple squirrel (apparently there really is one of these) who has led most of the park's rodent population to embrace the easy pickings in an abandoned nut shop across the street from their urban forest.

The fixed cats do a good job of keeping rodent and other pest populations in check.

Research Assistant, Institute of Ecosystem Studies, NY (May 00 — Aug 00) The interactions of tree regeneration, rodent and bird populations, and tick density and their effect on the risk of human exposure to vector - borne disease.

Perfect for controlling the rodent population and warning early settlers of encroaching humans or wildlife, the Aussie soon proved an invaluable housemate.

They do have benefits in reducing rodent populations around human populations (without using all kinds of pesticides around where people live).

Because the bacteria that cause rat bite fever are part of the normal bacterial population in rats, it is practically impossible to eliminate them from these rodents.

Feral cats can carry diseases as well as harm the populations of wild rodents and birds.

And even if FWS is successful at removing cats from some locations, the IPMP / EA fails to take into account the risk of mesopredator release — the inevitable spike in non-native rodent populations — and its impact on the native species the IPMP / EA aims to protect.

This time of year many people are treating their homes, camps and lawns with a variety of poisons, or rodenticides, to control their rodent populations.

So probably there is lots of cycling of parasites between cat populations and native species and introduced rodents as well,» Professor Johnson said.

Coyotes control species and disease populations because their diet consists of rodents, rabbits, deer, birds, insects, and reptiles.

But, in our particular case, we encourage the population of feral cats, as we have four granaries, and they were some of our best farm workers, and kept down the rodent population.

While Drumlin Farm is a wildlife sanctuary and doesn't generally allow pets on site, this role of a barn cat, keeping the rodent population in check, is an important function in a working barn.

There are also many populations of native rodents and smaller marsupials within the park, allowing researchers to assess whether the dingoes suppression of smaller predators would prove beneficial to the smallest critters.

While these cats become part of the natural ecosystem, often reducing the rodent population in our neighborhoods, they can also have a negative impact on native wildlife and songbirds.

A small number of cats could serve to keep the rodent population low.

Prevention: The best recommendations for general prevention of parasites are restricting cats from roaming and hunting, and control of insect and rodent populations.

Gone are the doubts that George expressed — first, regarding the impact of cat predation on rodent and other prey populations; second, regarding the relationship between these populations and the raptors that feed on them.

«The results,» wrote George, «established a basis for examining the possibility that cat predation may result in depleted winter populations of microtine rodents and other prey of Red - tailed Hawks, Marsh Hawks, and American Kestrels.»

Hawkins has no idea what the cat area was like prior to his arrival; he merely assumes the populations of birds and rodents would have been identical to those found at the no - cat area, and makes his comparisons accordingly.

Unfortunately there are very few humane ways of dealing with rodent populations once they take over an area.

In addition, having a maintained cat population will keep the number of rodents low in a neighbourhood.

Except in 1911, the Animal Rescue League and ASPCA numbers presented by Forbush in a table appeared to reflect relatively stable cat populations, which might even have been in decline as the advent of the automobile reduced the numbers of stables ---- and rodent and cat habitat ---- in their respective cities.

Hundreds of years later and there's nothing but a thriving population of cats and rodents — all the native wildlife on those islands now either extinct or on the brink of extinction because of it.