Sentences with phrase «high prey densities»

Not exact matches

But one afternoon, the whales all converged on one place where there was a really high density of prey — a 40 - meter - thick swath of water with 107 grams of krill per cubic meter, as opposed to the average density of 66 grams per cubic meter, Cade reported at the meeting.

But the research development of the techniques to count prey and tigers and doing studies in different sites across India with high and low prey densities show very clearly that the number of tigers is linked to the number of prey in a very, very strong relationship.

In addition, camera traps recorded whether the animals» prey sources were more likely encountered in the higher housing densities or in more wild, public land areas like national forestlands.

We used high - resolution multisensor digital tags attached to foraging blue whales (Balaenoptera musculus) with concurrent acoustic prey measurements to quantify foraging performance across depth and prey density gradients.

«They are a significant predator of small animals, and can survive as almost solitary animals when the prey is scarce, while thriving in high density when the prey is abundant,» Beck told Life's Little Mysteries.

But the authors also point out that, «despite occurring at very high densities, the summed effects on prey populations appeared unlikely to affect population size for the majority of prey species.»

Consequently, cat populations reach high densities near human settlements, so they impose relatively strong hunting pressure on prey populations (Baker et al. 2005; Sims et al. 2008; Thomas et al. 2012).

We argue that the behavioural capacity of feral cats to undertake long - distance excursions to exploit transient hunting opportunities results in significantly higher total predator pressure on prey, and helps to explain how low - density cat populations could have large impacts on small - mammal abundance at landscape scales.

The higher cat densities observed near some developed areas may be spillover from overcrowded conditions associated with TNR colonies and unsterilized pets, which may affect native prey populations in areas immediately adjacent to colonies.

A closer look reveals that they conform to biological laws including predator - prey dynamics (seal Pokémon can be found in low numbers amongst high densities of fish Pokémon) and even something known as niche theory; the idea that all plants and animals occupy a pretty specific set of environmental conditions (you won't find a sun - loving grass - type Pokémon in a dark cave).