Sentences with phrase «of habitats»

A team of more than 30 trained researchers and park officials looked for signs of bears in a variety of habitats in the Machu Picchu protected area, ranging from Andean rainforest to montane grasslands.

Today we may be in the throes of another mass extinction, caused by human overexploitation of habitats.

We have also developed a new metric, protection equality, to measure equitable representation of habitats in a single number.

According to Prof. Offen, untreated Alzheimer's mice would run heedlessly into an unfamiliar and dangerous area of their habitats instead of assessing potential threats, as healthy mice do.

When the ice age ended, these ancient species and other, more recent ones were ready to take advantage of habitats that opened up in the mountains» higher elevations — and the plants and trees speciated like mad.

This ability to eat a wider array of foods is apparent in the sika deer's range of habitats.

The 80 to 100 per cent declines seen in Quebec are, he says, due in large part to white - nose syndrome, but «the destruction of their habitats is another major problem.»

With this in mind, researchers from Concordia and the University of Tennessee studied the importance of different types of habitats for insectivorous bats living in and around agricultural regions.

«Our studies clearly show that widespread species have a much more diverse intraspecific gene pool than species that are adapted to a specific habitat,» explains Dr. Jan Christian Habel of the Technical University in Munich, and he continues, «Once these animals — due to the fragmentation of their habitats — lose the opportunity to maintain this genetic diversity by means of exchange, they will no longer be able to adapt to changing environmental conditions in the future.»

The research team lists the fragmentation of habitats and the intensification of agriculture as reasons for the decline of these «generalists.»

Bird and bumblebee species that nest late in the year are suffering more from the destruction of habitats, new research suggests.

But over time and with the further deterioration of habitats as well as the collapse of entire habitat networks, the threat to widespread, «undemanding» species such as the Pearly Heath (Coenonympha arcania) also increases.

Understanding the different modes of formation, and the contrasting geophysical dynamics, of these habitats is important for understanding the ecology of the different microbial communities.

But the 17 to 19 living species (depending on who's counting) actually live in a variety of habitats.

Extant counterparts live in a variety of habitats, but their relative abundance in the fossil assemblage indicates that Ardipithecus lived in a wooded area.

Estrada spent three and a half decades studying wild primates in southern Mexico and witnessed the transformation of their habitats.

First identified by William Jevons in 1865 — when he noticed more efficient engines increased rather than reduced coal use, as engines were put into more widespread use — the rebound effect for higher yields could see food prices drop, encouraging greater consumption, more food waste and even more conversion of habitats to farmland.

All of these small ways of altering the immediate surroundings strike me as reasonable adaptations to the instability of habitats.

Britain: Scientists report that 80 percent of more than 300 animals studied have extended the northern boundary of their habitats.

Within the dominant oak - hickory woodlands, one finds a diversity of habitats, from rocky glades inhabited by roadrunners and cacti to wetlands with highly mineralized groundwater — all welcoming spots for lichens to settle in myriad colors and forms.

Overfishing, pollution, climate change and destruction of habitats like coral reefs are all putting our seas in trouble but academics fear the risk is not being taken as seriously as concerns for the loss of animals and plants which live on land.

When we lose one rare species, it actually symbolizes many changes of far broader impact, ranging from the loss of habitats (affecting large numbers of species) to large - scale alterations to the functions of those habitats.

For ideal survival, then, Vernasco says fledglings do well with a «mosaic» of habitats made up of forests that differ in age and thus vegetation structure.

They then added seeds from 30 plant species from a variety of habitats and waited — for 6 years.

Long - term survival of this wide - ranging species, however, will require that the jaguars receive protection in a variety of habitats.

Multituberculates arose in the Jurassic period and went extinct in the Oligocene epoch, occupying a diverse range of habitats for more than 100 million years before they were out - competed by more modern rodents.

The first U.S. State of the Birds report came out in 2009 and established the precedent of using birds that are confined to specific habitats as indicators of the health of those habitats: oceans, coasts, wetlands, arctic, forests, grasslands, and aridlands.

The loss of habitats is the greatest threat to the endangered orangutans, and now a new study says their existence could be further jeopardized if conservation efforts don't include reintroducing these great apes into natural environments with enough high - energy food for them to survive.

The new law establishes conservation and monitoring of habitats, and aims to bring about better management and more research.

And without knowledge of their habitats, food sources and behaviors, these creatures are harder to protect against threats that could lead to extinction.

«Given the rapid depletion of both forest and savanna elephant numbers in the past century and the ongoing destruction of their habitats, the conservation implications of recognition and species - level management of these distinct taxa are considerable,» the authors write

«The sites look the same, but one of the habitats appears to support a healthier population.»

However, new research in the 1990s revealed that this warbler could be found in a surprisingly wide spectrum of habitats, including young loblolly pine plantations in eastern Texas.

Ranids are found on every continent but Antarctica and in a wide range of habitats, from trees to deserts.

Man is the most adaptable of animals and succeeds by the variety of habitats he can occupy; the elephant comes next and is so successful in occupying different African habitats that he now comes bang up against an expanding human population.

To assess the situation of the Iberian lynx and other felid species that live in the wild on our planet, a team of Brazilian and Spanish scientists has reviewed the scientific literature that exists on the main threat for these mammals: the loss and fragmentation of their habitats.

After scanning the literature for bacterial counts in each zone, Whitman realized that «a lot of the habitats weren't very significant.»

If migrating animals lose any of the habitats they rely on because the timing of their food — insect hatches, greening plants, for example — no longer coincides with their travel, this can have serious consequences for their continued survival.

Most scientists agree that humans played a role in the giant lemurs» demise by hunting them for food and forcing them out of habitats.

By comparing the contemporary global distribution of tropical marine fish1 with that of the paleo - reefs, the researchers were for the first time able to test the key role of habitats that persisted over many glacial periods and thus served as biodiversity refugia.

More than 80 per cent of the habitats on Earth are colder than 5 °C — but there is no shortage of species that can cope with the chill

Nevertheless, more than 80 per cent of the habitats on Earth are colder than 5 °C.

Flesch talks about the «meta - population» — a series of populations occupying a network of habitats, like beads strung on a necklace.

And, he notes, «it occurs across a wide variety of habitats across the U.S. southeast.»

He says his vision of a high - tech cluster of habitats would deliver «a new ocean civilization whose most important purpose will be to continuously monitor and protect the global ocean environment.»

Regardless, if TESS can indeed locate hundreds of nearby planets, astronomers will have their hands full for the foreseeable future — finding out what those planets are like and what kinds of habitats they might support and, just maybe, flinging some future probe toward one enticing - looking world.

Together the team have been using zebra stools to understand how challenges or «stressors», such as the destruction and breakup of habitats, impact on populations of South Africa's Cape mountain zebra.

During this cruise we are looking at the diatom species currently living in the surface waters in order to develop our understanding of their habitats.

It's the only Southern Hemisphere bear, calling the Andes home and occupying a range of habitats, including elevations more than 15,000 feet above sea level.

That's because these waters provide a variety of habitats and are rich in nutrients.