Sentences with phrase «high predation pressure»

One prey item is adapted to high predation pressure and supports the predator population (i.e. pigs), whereas the other prey item (i.e. the island fox) is poorly adapted to predation and declines as a consequence of the predation pressure.

[22] The high predation pressure has clear impacts on the demography and life history of crabeater seals, and has likely had an important role in shaping social behaviors, including aggregation of subadults.

Their relatively small size would have meant that choristoderes were probably exposed to high predation pressure and strategies, such as live birth, and post-natal parental care may have improved survival of the offspring.

Not exact matches

colorful traits are therefore subject to opposing selection pressures: positive sexual selection by conspecifics (increased mating success) and negative natural selection by predators (higher predation risk) and prey (lowered hunting success).

The intense predation pressure, which could be as high as 80 per cent among birds in habitats where the mourner lives seems to have driven the evolution of complex anti-predatory strategies in the species.

[14 — 17] Actually, Nico Dauphiné and Robert J. Cooper take its already - tenuous claims one step further, citing Hawkins» work (actually a 2004 conference paper that summarizes his dissertation [18]-RRB- as evidence that «the continuous predation pressure exerted by exotic predators in exponentially high densities can and has resulted in numerous local extinctions of continental land birds.»