Sentences with phrase «cat predation»
Cat predation refers to the hunting and killing behavior of cats towards other animals, primarily small animals like birds, rodents, or reptiles. It is the act of cats chasing, capturing, and often eating their prey. Full definition
Counting Cats and Counting Birds In both studies, the authors quantified the impact of cat predation on bird populations by comparing different levels of predation with different bird densities.
voxfelina.com
Note 1: According to ABC's 2011 update of Domestic Cat Predation on Birds and Other Wildlife: «Roughly 60 to 70 percent of the animals cats kill are small mammals; 20 to 30 percent are birds; and up to 10 percent are amphibians, reptiles, and insects.»
«Free - roaming domestic cat predation accounted for 50 percent of adult Lower Keys marsh rabbit mortality during radio telemetry studies and was cited as the largest factor limiting their population viability in the 1990s (Forys and Humphrey 1999).»
The Humane Society Veterinary Medical Association issued the following statement from its senior veterinary medical advisor, Barry Kellogg, VMD, in response to a study on cat predation by the Smithsonian Conservation Biology Institute and the U.S. Fish and Wildlife Service.
FWS argues, for example, that TNR «does little to reduce cat predation on native wildlife.»
In Part 6 of this series, I critiqued Christopher Lepczyk's paper Landowners and cat predation across rural - to - urban landscapes, published in 2003.
Many of the accounts of alleged cat predation that Forbush quoted from his correspondents appear to describe instead the behavior of other species, including pine marten, also called «fisher cats,» who had become so rare as to be misrecognized when seen, and only within the past 25 years or thereabouts have begun to make a comeback.
... regarding «a more comprehensive piece,» what I'm proposing is a detailed review of the literature regarding cat predation on birds, the scope of which includes — but also goes well beyond — the material covered in the essay by Longcore et al..
Biologists also have used the studies from Marra, Temple, and a number of others to estimate the total U.S. death toll for birds due to cat predation as more than a billion per year.
Now numbering well over 100 million in the United States, cats kill approximately 2.4 billion birds every year in the U.S. alone, making cat predation by far the largest human - caused mortality threat to birds.
Like the canary in the coal mine, the silencing of large numbers of our birds due to a multiplicity of human - related factors, including cat predation, is a warning to us to act now in support of our bird populations.
Insular feral cat's reliance on introduced mammals, which evolved with cat predation, suggests that on many islands, populations of native species have already been reduced.
I'm quite ready to listen to anything you have to say about why no confirmed cat kills and only one possible cat kill out of 122 fledglings is evidence supporting cat predation, or why coyotes killing birds is good but cats killing birds is bad, or how the suburbs could possibly be a great place for bird species diversity with all those cats around.
Anybody familiar with the topic of cat predation knows that results of island studies can not simply be applied to continental studies.
«In Illinois, George (1974) found that only about half of animals killed by cats were provided to their owners, and in upstate New York, Kays and DeWan (2004) found that observed cat predation rates were 3.3 times higher than predation rates measured through prey returns to owners.
Studies of cat predation routinely reveal a positively skewed distribution; a few cats are responsible for many kills, while many of the cats kill few, if any, prey.
Of the many cat predation studies I've read, only a few [2, 10, 11] properly account for the skewed nature of this distribution.
Tell It Like It Is Studies of cat predation frequently cite the work of William G. George, who, in 1974, published a paper documenting his meticulous observations of the hunting behavior of three cats on his southern Illinois farm.
And cat predation also extends to reptiles and amphibians, which weren't part of the original study but whose admission records McRuer and other researchers are examining now.
However, this response may reflect the coincidental maturation of young produced by iguanas repatriated from 1991 onwards or climatic variations rather than resulting from reduced cat predation alone.
The study, which is described as the most comprehensive analysis of information on the issue of outdoor cat predation, found that bird and mammal mortality caused by outdoor cats is much higher than has been widely reported, with annual bird mortality now estimated to be 1.4 to 3.7 billion and mammal mortality likely 6.9 — 20.7 billion individual animals.
We only included mainland and large island (New Zealand and United Kingdom) predation studies, because cat predation on small islands is often exceptionally high36, 37 and focused on colony nesting seabirds38.
As the numbers of cats declined, the last having been killed in 2000, the rabbit population increased, to an estimated 100,000 by 2007 ---- and rabbit damage to bird nesting habitat proved far more damaging to the sea bird population than cat predation ever had been.
The relationship between cat predation and bird populations is highly complex, and our understanding quite limited — something Longcore et al. only hint at.
[FN40] However, scientists believe that cat predation poses a major threat to the continued existence of beach mice in some areas.
In a period with high rabbit abundance, cat predation corresponded to 4 % of annual production of rabbits and to about 20 % of annual production of field voles (Microtus agrestis) and wood mice (Apodemus silvaticus).
[11](USFWS misrepresents this, too, in its Predator Management Plan, once again omitting the number of mortalities: «Free - roaming domestic cat predation accounted for 50 percent of adult Lower Keys marsh rabbit mortality during radio telemetry studies...» [9]-RRB-
Here, I'm going to untangle some of Lepczyk's own PhD work: Landowners and cat predation across rural - to - urban landscapes, published in 2003.
The Hawaii Department of Land & Natural Resources is desperate for a «victory» in its war against real and alleged cat predation on birds.
«Cat predation upon birds and wildlife is a serious matter to us,» he says.
Mitchell, J.C. and Beck, R.A., «Free - Ranging Domestic Cat Predation on Native Vertebrates in Rural and Urban Virginia.»
It may be necessary to wait some years to see the full benefits of reduced cat predation.
In discussions over a couple of years, they agreed that the problem of cat predation on wildlife could be reduced by taking the simple step of moving feral cat colonies away from key wildlife areas.
Population Impacts «Cat predation is one of the reasons why one in three American bird species are in decline,» claims ABC president George Fenwick.
Experts agree that habitat loss, pollution, collisions with buildings and cars, and other human - led activities account for far more bird deaths than cat predation.