Sentences with phrase «influence of predators»

With four others, the researchers removed ten to twenty percent of the larvae twice a week, in order to simulate the influence of predators.

Not exact matches

«It will be interesting to see the influence of large predators on smaller predators in other parts of the world, especially the role of the big cats such as jaguars, leopards, lions and tigers,» said co-author William Ripple of Oregon State University.

Scientists have used coyote and red fox fur trapping records across North America to document how the presence of wolves influences the balance of smaller predators further down the food chain.

The models included interactions and competition between predators as well as the influence of climate on vegetation and prey populations.

Because large carnivores regulate other predators and prey, exercising an influence on the ecosystem far out of proportion to their numbers, their protection and reintroduction is crucial.

Marian Stamp Dawkins, an animal behavior expert at the University of Oxford, has championed the idea that aspects of sensory processing can influence the evolution of communication signals; for example, a nocturnal species whose predators are color - blind would not evolve colored warning splotches.

You may have heard of a landscape of fear — how a predator can influence an ecosystem not just by eating its prey, but also by introducing fear into the system, changing the behavior of many organisms.

However, while the absence of large predators may make it safer to walk on the forest floor, a more pressing influence is the rapid and unprecedented loss of Borneo's orangutan habitat.

«These experiments provide objective evidence that visual stimuli designed to mimic an overhead predator can induce a persistent and scalable internal state of defensive arousal in flies, which can influence their subsequent behavior for minutes after the threat has passed,» Anderson says.

The powerful ramifications of HSS» hypothesis — that predators influence community dynamics at all trophic levels — inspired vital new hypotheses about community ecology.

Their main objective was to see how translocating fishers — in this case moving them from the study area to reintroduce them to the northern Sierra Nevada mountains — influenced their numbers; researchers also wanted to learn about the effects fishers and other predators of similar size have on each other.

Though the study included only a small number of sharks monitored over varying lengths of time, the findings may suggest that fish prey location may influence movements of their shark predators, and that group spawning events may shape ecosystem dynamics in deeper coral reefs.

Their results indicate there is no relationship between the density of lionfish and that of native predators, suggesting that, «interactions with native predators do not influence» the number of lionfish in those areas, the study said.

I have most of the Predator's comics, and it would be cool to see their home planet, culture and other mysterious creatures that influence who they are.

Earlier this week, the LA Weekly honed in on the outsized influence California's largest teachers union is perceived to have on education policy issues, including recent efforts to speed the removal of sexual predators from the classroom.

Factors including other competitive predators, the abundance of food, terrain, effects of urbanization and shrinking ranges influence behavior.

It depends on a number of conditions including the abundance of food, amount of available space, urban influences, terrain and the proximity of other predators, including pumas.

Predator: Incursion begins with humans having spread their influence out into the stars, but just a bit; they have still only explored an estimated 2 % of the galaxy, and so have quite a ways to go.

I would say that these studies, including the Bythotrephes study all point to the influence of habitat on predator prey interactions.