Sentences with phrase «predator species»

Now, I don't what the impact of removing this major top - end predator species was on the marine ecology, but I'd be confident it wasn't good — cf. the removal of wolves from Yellowstone.

Ecosystem changes: predator species going extinct, prey species going extinct, trees that provide food and habitat not moving north fast enough... What if a species moves into an evironment that has some new factor that is intensely favorable?

«The view that we should prevent predation underestimates ecological considerations, as we see from the dire consequences of eliminating keystone predator species, and it is committed to a narrow view of value: only pleasure and pain count,» said MacClellan.

Prairie Dogs identify predators by height, color, predator species, and whether they're aerial or terrestrial... in other words, they have a language that «describes definitively».

I, too, think that we are managing the wrong predator species.

Applying the ESA prohibition on the take of an endangered species, including habitat degradation, to the issue of free - roaming cats, it would appear that under the right circumstances, aa court could find that cats degrade the habitat of endangered or threatened predator species by killing the prey upon which those species depend for food.

Parasites from wild rabbits and exposure to our native predator species such as coyotes, hawks, owls, and snakes make for an unsuitable habitat for domesticated rabbits.

In addition, as we do not treat any dogs or cats (predator species) at the Center, bunnies (prey species) are much less likely to get stressed out than they would if there were barking dogs or meowing cats nearby.

Fears, anxiety and stress will be heightened if cats are placed next to, or have eye contact with, what they would regard as a predator species (eg, a dog) or have to share the space with barking dogs.

Other predator species will actively hunt cubs, so they are driven away by the lions, especially if they get too close to kills or their families.

Alternatives According to FWS, «the Proposed Action is a fully integrated range of nonlethal and lethal predator management strategies that would be available for implementation on the FKNWRC, depending on the status, distribution, and extent of predation by targeted predator species.»

For predator species, their eyes are located more towards the midline of the face so that they have a better perception of depth hence a more precise appreciation of where the prey is.

Humans are a predator species.

Large predator species may need unfragmented forest areas as large as 1 million hectares to persist [181].

We found that PCBs were at excessively high concentrations in the blubber of several marine apex predator species across Europe, including killer whales and bottlenose dolphins, and were associated with long - term and on - going population declines.

Common Ravens are now the most pervasive predatory species nesting in this area, accounting for 46 percent of nests among these four avian predator species.

30 Presence of other predator species complicates matters.

Now sea otters and other important predator species face the challenges of a changing climate.

Overfishing has slashed stocks — especially of large predator species — to an all - time low worldwide, according to new data.

They investigated life history data of nearly 1400 bird species and found that avian life span varies considerably across the entire Earth, and that much of this variation can be explained by the species» body mass and clutch size and by the local diversity of predator species.

Since the fragments can bind to chemical pollutants, these associated toxins could accumulate in predator species.

We are, at base, a pack predator species and they need hierarchy.

Not exact matches

When predators are taken out of an ecosystem, the prey species get messed up in many ways.

I would say that it is essential, as we are physically inferior to pretty much any major natural predator, so the only way we could have possibly survived and come this far is by being smarter than the other species.

if humans had just fell in line with religious teachings and never asked questions other than «god did it»... then people would still be dying in child birth, the common cold, small poxs etc etc etc. i find that we survived a s a species to become the alpha predator of this planet and the achievements we have made since then to be amazing; attributing everything humans have achieved to a god just cheapens the value of our achievements as a species.

Agencies have used fur - trappers to remove predators threatening endangered species.

In an eco-system, many of the relations between species are those of predator and prey.

They have little experience with sustainability per se, have done hardly any research into growing various crops under different native shade tree species and densities, and have very little * ecological * perspective (i.e., multi-year, cyclic, prey - predator and tree - weed interactions etc.).

The provision of structures providing food and shelter, and the lack of pesticide use, attract new or re-colonizing species to the organic area (both permanent and migratory), including wild flora and fauna (e.g. birds) and organisms beneficial to the organic system such as pollinators and pest predators.

As that material drifted toward Sampsons Island and accreted, the number of pairs of all species declined again, and productivity also declined as the smaller nesting areas became more vulnerable to predators and storm overwash.

Other species such as red grouse, golden plover, curlew and black grouse are listed as likely to benefit from the «legal control of generalist predators».

«The proposals for the future of snaring represent the best possible balance between retaining an essential tool in predator management, which benefits many species of wildlife, whilst ensuring that the use of snare is conducted to the highest possible standards.»

Common garter snakes, along with four other snake species, have evolved the ability to eat extremely toxic species such as the rough - skinned newt — amphibians that would kill a human predator — thanks to at least 100 million years of evolution, according to Joel McGlothlin, an assistant professor of biological sciences in the College of Science and a Fralin Life Science Institute affiliate.

Certain fish species, such as the lookdown (Selene vomer), can alter the way light reflects off them to hide from predators.

The wood tiger moth is the first species known in which fluids from various parts of the moth's body each target a different type of predator.

S. acuminata, which grew up to 40 centimeters long, belonged to a diverse group of predators known as eurypterids, whose oldest known species appeared about 467 million years ago.

Instead, the researchers point to an advantage of small size: Among today's creatures, diminutive species tend to grow and reproduce faster, so that they can produce a new generation before they are killed by predators.

Dr Ford, from the University's Institute of Marine Sciences, said: «One of the main reasons why invasive species are successful is the escape from predators, parasites and disease in their native habitats.

Species traveling in small groups or inhabiting open habitats along with predators tend to sleep less.

«But it can also alter how species interact, such as by impairing the ability of prey to avoid predators,» she said.

As a result, predators that consume their own kind run a greater risk of picking up a disease or a parasite than predators that feed solely on other species.

As well as helping the insects recognise other members of their species, the panels confuse predators that do not recognise the translucent zone as part of the butterfly.

This showed that horns were most likely in conspicuous species — those living in open habitats and large enough to be clearly visible to predators — suggesting that they evolved as defensive weapons (Proceedings of the Royal Society B, DOI: 10.1098 / rspb.2009.1256).

• The answer is complex, but the bottom line is that an invasive plant species starts with a big advantage: its natural predators, parasites and pathogens are generally absent from its new environment.

Instead, we should actively manage nature, interfering when necessary — by reintroducing native predators, moving species under threat, or even embracing invaders — to buttress important ecosystems and preserve diversity.

In viverrids like the African civet (Civettictis civetta), highly striped and color - flecked faces belonged to species that were more likely to fight back against other predators, indicating the markings might serve as a warning.

Unlike many bird species that are now extinct on the Earth's small islands, the Eastern Bluebird and the Hispaniolan Crossbill disappeared long before the first people arrived, uncoupling their extinction from human actions, such as the introduction of new predators and habitat loss for agricultural use.

Predator diversity was increased by it, but understory algae decreased as expected because the giant seaweed shades the bottom and prevents other algal species from doing well.

The polar bear, also known as the white bear, northern bear, sea bear, or nanuq in some Inuit languages, is a species of bear that is native to the Arctic and the apex predator within its range.

«In our wetland survey, our microcosms and disease models, we discovered that there were fewer flatworms in frogs where there were more species of flatworm predators,» said Rohr.