Sentences with phrase «as species move»

But when we hit the tree line, the diversity is actually going up as species move into higher elevations to escape the warming temperatures lower down.

«As in the environment above the sea, we tend to think about movement in a horizontal dimension, across the breadth of the oceans, but at sea there are perhaps even greater habitat boundaries and gradients as species move vertically with depth.

How about we as a species move beyond beliefs in folklore and legends finally?

They then measured Darwinian natural selection on flowering time and found differences in flowering times that have evolved over the past 50 years as the species moved northwards, following its initial introduction to the east coast of the USA.

Not exact matches

Whatever we, as a culture and species, think we're doing to decrease waste and pollution, our actions are in a whole other world, moving in the opposite direction.

That suggestion contradicts the prevailing anthropological logic that our species evolved somewhere deep in sub-Saharan Africa, in what some researchers have referred to as a «Garden of Eden,» then gradually moved out to other parts of the world.

It's time we left behind all these silly, nonsensical ideas of gods and religion if we are to move forward as a species...

They, along with 150 other species of birds (which is equivalent to two - thirds of the birds in North America's forests), move each year from North America toward Central America and the Caribbean, going as far as South America, in order to spend the North American cold season in warmer latitudes.7

As you move down the tree of life we share less and less of our DNA with each subsequent species.

Ridding the world of the poison of religion is the only way we can move forward as a species and away from intolerance, ignorance, greed, wish thinking and this destructive sanctimonious, arrogant mindset.

Most of us are politely quiet and secretly roll our eyes when someone says that god speaks to them or that they have been touched by god etc., yet when someone mentions any of the other things we are quick to point out that they are wackos... perhaps it is time for us to speak up and say there is no such thing as god and it is time to clear our heads and get on with moving the human species forward and leaving fairy tales and silly beliefs behind.

One would think humans would have moved forward by now but instead we as a species behave in the same self - destructive manner now as we did thousands of years ago with more at stake then at any other time in history.

From the time the species Homo sapiens consolidated itself to become the only survivor of the various hominoid species that had evolved as a result of divergence, humankind slowly spread over the earth, moving into previously uninhabited areas.

In one of the world's longest psychological carom shots, the authors offer as an example of such antagonism the Ayatollah Khomeini, whose violent reaction to Salman Rushdie masked his fear of adaptations that were moving Iran «mildly in the direction of species consciousness.»

«The historical mission of our times is to reinvent the human — at the species level, with critical reflection, within the community of life - systems, in a time - developmental context, by means of story and shared dream experience... The Great Work now, as we move into a new millennium, is to carry out the transition from a period of human devastation of the Earth to a period when humans would be present to the planet in a mutually beneficial manner.»

«We've moved children away from fine motor tasks, but as a species we have a need to work with our hands,» says Keyser.

«As you move from one fracture to the next,» Onstott notes, «the microbial species change.»

Ixodes scapularis keeps Lyme Borrelia cycling in nature, says Clark, as do three other Ixodes species on the ground: Ixodes affinis moves among rodents; I. minor moves among rodents and probably birds; and I. dentatus moves among birds and rabbits.

This may have been an adaptation to new environments and endurance hunting, as early Homo species left the forests and moved on to more arid African savannahs,» says lead author Dr Manuel Will from Cambridge's Department of Archaeology, and a Research Fellow at Gonville and Caius College.

Narrow species ranges and fragmented appropriate habitats (as well as man - made and natural barriers like cities and mountains) will make it hard for more temperate and tropical plants to move.

At about the same time, the eye position moved from the side to the top of the skull, as seen on some transitional species, such as Tiktaalik.

«We need to move from thinking in terms of compliance at a farm scale to compliance at a landscape scale if we are to save as many species as we can from extinction,» he said.

He saw that the normal variations among individuals within a species tended to become more significant among separate populations of the same species, and even more so among separate varieties, as each moved down its own evolutionary path.

If we had evolved as a species with different mating and child - rearing habits — abandoning our children at birth and moving indiscriminately from partner to partner, like most reptiles — it's likely our brains would be incapable of feeling love.

The Obama administration is moving to speed up endangered species decisions as nearly 100 species have been awaiting a decision for more than a decade.

The biologist is tracking the insects as they move through the Southwest and threaten habitats of native species, like the Southwestern willow flycatcher.

Supplement sees 6 genera and 11 species, many of which are found only in the Caribbean, moved from the Thraupidae into a temporary category of their own as a result of genetic analysis showing they're not closely related to tanagers after all.

Fishing communities can survive — and even thrive — as fish abundance and market prices shift if they can catch a variety of species and nimbly move from one fishery to the next.

In recent years, biologists have argued that the best way to save species that need large territories, such as the endangered jaguar, is to connect existing parks and other large environmental reserves with protected corridors that would allow the animals to move back and forth.

Strangely, the scientists said, nothing of the kind is seen in a different kind of biodiversity loss: the loss of species today as you move from the warm tropics to the chillier poles.

As the world warms up, some species can not move to cooler climes in time to survive.

As climate change causes the Barents Sea to grow warmer, for some years now other fish species like capelin and Atlantic cod have moved further northward, creating new competition that could reduce the polar cod population.

Marine litter can act as an enabler of this loss: non-indigenous invasive species often use litter in the ocean as a habitat in which to hide, as a platform on which to settle or as a transport medium for moving into new territories.

But it's a transformation that's increasingly evident as we move up the evolutionary ladder from simpler species to more complex and intellectual ones, particularly primates.

This is not a new phenomenon, as natural debris (dead wood, ash, etc.) have enabled species to move around for millions of years, but the movement of alien species on litter items is potentially a new problem, because of the proliferation of floating — mostly plastic — particles.

«As body mass increased, and side toes shrunk, the middle digit compensated by changing its internal geometry, allowing ever - bigger horse species to eventually stand and move on one toe,» Pierce said.

Scientists are also exploring assisted migration, a controversial topic in ecology where species are moved from a place they currently thrive in to places they might survive as the globe warms.

«You get this compounding effect where you have a lower diversity of herbivores per tree but then you also are getting more similar species as you move between trees species and among sites, so you end up with even less diverse communities than you would expect,» said Burghardt.

Within the distantly related group, they found that herbivores were less diverse when they looked at individual non-native tree species, and as they moved from one non-native tree species to another, they found similar species of herbivores using those trees.

As subpopulations moved into isolated areas, how did they remain isolated over a long enough time for new species - defining traits to arise in nuclear genes and become enriched by natural selection to permit speciation?

River otters, a locally threatened species, have moved in, as has a threatened species of birds known as grebes.

Bishop and colleagues examined locomotion in 12 species of ground - dwelling birds, ranging in body mass from 45g to 80 kg, as the birds moved at various speeds along enclosed racetracks while cameras recorded their movements and forceplates measured the forces their feet exerted upon the ground.

As the Pacific Plate moved over the Hawaiian hotspot and new islands formed and others shriveled away, these colorful songbirds evolved into more than 50 species that differed so much in what they ate, where they lived and how they looked that it took...

Meanwhile, reduced oxygen circulation has forced one species of snail, Tiphobia horei, which lived as deep as 984 feet a century ago, to move to depths of 328 feet or less.

The move by the U.S. Fish and Wildlife Service to list the animal as threatened under the Endangered Species Act includes scenarios for establishing wolverines in their former range, with Colorado taking the lead; the male stranded in Colorado, M56, had chosen an excellent spot in the southern Rockies and was already fitted with a transmitter.

Furthermore, each kind of plant shifted its optimum range at a different pace: Strictly mountain - living species such as alpine wildflowers moved faster, whereas species that were able to live in lowland areas, such as the common juniper, were less hurried.

But as species begin to move in response to new climate - driven stressors, past populations will become a less reliable predictor of future stocks.

Another study looking at lizard family trees will test whether these patterns might play a role in evolution on a larger scale: By giving lizards protection as they move around, stripes may allow them to explore different habitats, increasing the speed at which new species appear.

This site was chosen as an example of the kind of place to which people might move the oak, the butterflies, the flowers, and all the other species that make up the little fairyland savannas.

But the proposal authors say they do not advocate moving species over geophysical barriers such as oceans.