Sentences with phrase «predation rates on»

After excluding studies that did not meet a priori inclusion criteria designed to increase the accuracy of our analysis, we developed probability distributions of predation rates on birds and mammals.

«You can argue that the animals that are affected by rodenticide are weaker,» Thompson says, «and that the predation rates on them, as I suspect, are higher.»

Not exact matches

On landscapes with both open and closed habitat structure, they may use a combined strategy of hiding in forest cover to lower predator encounter rates and seeking open terrain, such as grasslands, where predation risk may be reduced.

At a larger scale, this method would more accurately assess the seasonal variation in predation rates, individual hunting behavior throughout the year and the actual impact of cat predation on prey populations (Tschanz et al., 2011).

``... the ecological and conservation significance of these kill tallies is difficult to contextualise, because (1) there are no reliable estimates of the total population of birds in Australia; (2) predation may fall disproportionately on some bird species; (3) some bird species may be able to sustain high mortality rates and maintain viable populations but others may not; and (4) as demonstrated here, there is substantial spatial variation in the numbers and proportion of birds killed across Australia.»

In it, she touches on all the usual talking points (e.g., cats are non-native, exaggerated predation rates, etc.), and portrays her trapping as a civic duty — done in the best interest not only of the community, but also of the cats.

We excluded studies from outside temperate regions and those with predation rate estimates based on fewer than 10 cats, < 1 month of sampling, or on cats that were experimentally manipulated (for example, by fitting them with bells or behaviour altering bibs).

Data on predation rates by pet cats in Canada would also be very helpful.»

Research conducted in more densely populated areas, or areas where unowned cats aren't entirely reliant on prey for their meals, reveals predation rates far lower than 80 percent, [12] especially for birds.