Sentences with phrase «competition for food»

For example, competition for food with the European bees could also be responsible for species decline.

In the winter, the fierce competition for food isn't only amongst fox species.

These changes may be related to a dietary shift caused by climate change, combined with competition for food resources between the two species of mice, according to the researchers.

More bears means more competition for food, which means more assertive bears get the goods.

When the biodiversity of an ecosystem is reduced by invasive species, competition for food plays a more important role than has previously been supposed.

As a result, they face little competition for food.

Both of these favorite flats species are in record numbers and in greater competition for food in such large schools.

This is because there is a higher risk of human interaction and persecution in areas where there are more farms, a greater pressure on natural resources through increased timber extraction and livestock grazing, and even competition for food from domestic animals kept as pets.»

By doubling the density of wood frog and American toad tadpoles, we mimicked these high - density environments to simulate increased competition for food resources among tadpoles.

Reasons Need More Study Speculating on reasons why direct competition for food between minke whales and their larger cousins does not appearing to be occurring, the scientists said it is possible that minkes don't feed on krill at the same times as larger baleen whales.

Puppies begin chewing and biting one another in playful fighting activities, sometimes growling at one another in mock battle play or when in competition for food or play objects.

Corcoran and Conner show that Mexican free - tailed bats, which live in colonies that can number in the hundreds of thousands, deal with this high level of competition for food by actively jamming competitors» echolocation.

Dangerous seal encounters are a recent phenomenon; in the past decade, as competition for food lures the animals closer to shore, aggressive bull seals are becoming a very real risk.

Any changes in Limusaurus» diet over time might have helped different age groups carve out separate niches within their ecosystem and thus reduce competition for food between adults and juveniles, he speculates.

One thing sex does for bonobos is decrease tensions caused by potential competition, often competition for food.

This is explained by the fact that under the pressure of competition for food sources, closely related species diversify what they feed on, which has the effect of reducing competition.

That said, there is fierce competition for those food delivery dollars, including from technology behemoth Amazon.

Speaking at this year's wine trade convention in Heilbronn, Dr. Kai Hudetz, expert at Cologne's retail research institute Institut für Handelsforschung (IFH) said he expected «AMAZON fresh» to not only be competition for food retail but also to boost AMAZON wine sales.

«They haven't shown that female competition for food could not be the reason why horns evolved.»

These non-native crayfish prey on fish eggs and destroy aquatic plants, and can negatively affect fish through competition for food and changes to their habitat.

Normally, the two felines kill cubs of the other species to eliminate future competition for food and raise the chances that their own progeny will survive to adulthood.

The possibilities include intense competition for food and other resources due to overpopulation; the rise of diseases acquired by living closely with livestock, other humans, and their waste; and increased violence among Neolithic communities.

Cats in multiple - pet households where there is perceived competition for food often have a tendency to gobble too quickly.

Competition for food due to the presence of other cats may lead to overeating.

WRI responds to a critique of its working paper, Avoiding Bioenergy Competition for Food Crops and Land.

These are already revealing a worrisome future in which rising global temperatures will likely cause environmental changes such as rising sea levels and stronger hurricanes, which could uproot communities and intensify competition for food and other resources.

Other possible explanations for the decline, which is being caused by a low survival rate of seal pups, include a change to the food supply owing to warming waters; competition for food from large fish called jacks; or the possibility that the reserve is simply too new for its ecosystem to have settled down.

Conservationists worry, for example, that escaped transgenic fish could threaten wild stocks by increasing competition for food (Science, 13 September 2002).

During this period puppies begin chewing and biting one another in playful fighting activities, sometimes growling at one another in mock battle play or when in competition for food or play objects.

The effects held up whether the elder brother died in childhood or not, suggesting that the negative outcome is not a result of some direct sibling interaction, such as competition for food, regular beatings or the practice of primogeniture, in which the eldest brother inherits everything.

Contrary to a longstanding hypothesis within the agricultural world that holds that antibiotics reduce total microbial numbers in the gut, therefore reducing competition for food and allowing the host organism to grow fatter, the team found that the penicillin did not, in fact, diminish bacterial abundance.

2) Growth in developing world means more competition for food and energy supplies, and other commodities, which are forcing prices up in those areas.

The Yangtze River dolphin, one of the world's rarest mammals, is no more, a victim of China's breakneck economic growth and competition for food with one of the world's most common large mammals — human beings.

This means that as a population increases, competition for food and mates increases, and reproductive success and survival decline.

The behavioural changes could have caused extra stress and competition for food, since the elephants had less time to go about their daily activities, he says.

These birds are considered brood parasites because they lay eggs into the nests of other birds and throw out the host's eggs to ensure there is no competition for food from the adoptive parents.

Competition for food can also contribute to malnutrition and therefore smaller moose.

The mutation gives the offspring an advantage over its peers in the competition for food and mates, and so, as the generations pass, it is carried by more and more of the population.

Interactions with others could increase the likelihood of getting sick from parasites and fleas and can lead to competition for food (they eat grass and vegetation) at times when it may not be plentiful, Blumstein noted.

New Duke research appearing March 29 in the journal Scientific Reports suggests mirroring in monkeys is also influenced by social factors, such as proximity to other animals, social hierarchy and competition for food.

A likely situation, Hewson and his colleagues say, is that an overabundance of sea stars increased the transmission of the virus, especially if they were stressed by competition for food, which could make them more vulnerable to infection.

Hanna and Cardillo also found that rats» impact was most pronounced on small mammals — those weighing less than 2.7 kilograms — although the scientists are unsure how much of this influence was due to direct predation as opposed to competition for food and other resources or disease spread.

Competition for food was intense.

The competition for food, territory, and mates is intense in the wild.

In fact in this scenario, other dogs are competition for food and threaten survival, so guarding access to scraps becomes extremely important.

These include early - onset obesity, old age, overweight owners, a sedentary lifestyle (especially common for indoor cats), competition for food and a free - fed diet (as opposed to meal - fed).

These include early - onset obesity, old age, overweight owners, a sedentary lifestyle (especially common for indoor dogs), competition for food and a free - fed diet (as opposed to meal - fed).

Competition for food and mates may provide answers.