Sentences with phrase «distribution of species»

In coastal areas and margins, increased thermal stratification may lead to oxygen deficiency, loss of habitats, biodiversity and distribution of species, and impact whole ecosystems (Rabalais et al., 2002).

Most projections of future climate - driven extinctions rest upon the assumption that potential geographic distribution of each species is ultimately determined by the climatic tolerances of the populations that make up that species.

Models of the distribution of North American mammals show that estimated future diversity under climate change is drastically underestimated unless the full historical distribution of species is included in the models.

I am aware that some (C3) plants will profit more than other (C4) plants from enhanced CO2 levels, which can lead to changes in relative abundance and distribution of these species.

Development activities in the Arctic (for example, oil and gas, minerals, tourism, and shipping) are of concern to Indigenous communities, from both perceived threats and anticipated benefits.149 Greater levels of industrial activity might alter the distribution of species, disrupt subsistence activities, increase the risk of oil spills, and create various social impacts.

Recent changes in the distribution of species as well as species richness within some marine communities and the structure of those communities have been attributed to ocean warming.

Dramatic changes in the distribution of plants and animals during the ice ages illustrate how climate influences the distribution of species.

There are many causes of migration and change of distribution of species.

The historical distribution of the species probably encompassed much of the coastal scrub / grassland habitat of the northern San Francisco peninsula and Marin County.

Measuring population size and using sampling techniques to investigate the effect of a factor on the distribution of a species; 13.

Distribution of species within areas of high biodiversity follow normal distribution, which enables further approximation of the characteristics of the species, following algorithmic approaches.

Ari received his Ph.D. from Duke University in Ecology, where he studied the spatial ecology of humpback and minke whales in the Antarctic, and showed how the distribution of each species was related to their prey and other physical features of the environment.

Researchers worry that current methods for tracking extinction could be missing important data about the relative health and distribution of species.

«In fact, a study looking at the genetic and morphological variability of Asian Black Bear populations throughout the geographic distribution of the species is yet to be conducted, and it would surely yield exciting results,» Gutiérrez said.

Angel also argues in his paper that local dumping would cause «no impact on biodiversity... because the distribution of species are ocean basin in scale».

Some gaps in the research include getting a better understanding of the distribution of species and habitats, understanding how marine populations respond to stressors and looking at how changes in climate can affect individual species and ecological communities.

In 2014, WCS published the document «Andean Bear Priority Conservation Units in Bolivia and Peru» that consolidated information from 25 Andean bear experts on the distribution of the species and recommendations for conservation.

It reveals a pattern of significant, long - term, human influence on the distribution of species across all of the earth's major occupied continents and islands.

The full extent of these exotic pests in English and Welsh waters is currently unclear and a consortium of research institutes is requesting mitten crab sightings from members of the public, anglers and waterway workers, to clarify the distribution of this species.

The scientists» analysis of more than 25,000 bones and 170,000 live animals showed that the distribution of species among the bones corresponded well to the living community, even through periods of rapid ecological change.

The team began with the distribution of each species today, then worked their way back along the family tree, inferring where earlier species had lived.

Spatial fingerprints of climate change on biotic communities are usually associated with changes in the distribution of species at their latitudinal or altitudinal extremes.

He and his colleagues use Grinnell's data to understand how climate change has affected the distribution of these species.

Climate change, in other words, may already be impacting the distribution of species.

Although global warming is likely to change the distribution of species, deforestation will result in the loss of more dry forests than predicted by climate change damage.

To determine whether populations have evolved local adaptation, Colautti and University of Toronto professor Spencer Barrett collected seeds from three different climatic regions and grew them at three sites spanning the distribution of the species in eastern North America.

Before this, the effects of climate change have been studied through changes in the distribution of species.

The primary way that researchers know anything about the distribution of species in the natural world is via the specimen collections housed in museums all around the world.

«We're assuming that the distribution of the species in the future will be constrained by the loss of their habitat,» said James Hatten, a biogeographer at USGS and author of the research.

«People don't really want to spend five years going around the world visiting collections in museums and transcribing data from tiny little labels just to understand the biology and distribution of a species,» said McHugh.

Thanks to the historical data (1930 - 2000) shared by the FAO Desert Locust Information Service (DLIS - FAO), a joint INRA / CIRAD team was able to study the climate niche and distribution of the species during recessions, and envisage the effects of possible climate changes between now and 2050 or 2090, in line with two future climate scenarios.

The organic fields were also characterized by a generally more even distribution of species, which means that the community is less dominated by few species only52.

Darwin saw himself as giving an explanation, by no means complete, of the variety and distribution of species around the globe; he argued for the superiority of his explanation over its competitors, including those that attempted to account for these facts by appeal to a divine intelligence.

Darwin was led to the idea of evolution by patterns he noticed in the distribution of species.

Evolution makes predictions about what we would expect to see in the fossil record, comparative anatomy, genetic sequences, geographical distribution of species, etc., and these predictions have been verified many times over.

Climate change is expected to cause changes in the distributions of species around the world, with an overall shift away from the equator and towards the poles.

The book examines the emerging discipline of human - induced climate change and the resulting shifts in the distributions of species and the timing of biological events.

Not exact matches

Its substantial warehousing, processing, manufacturing and distribution capabilities enable the business to respond rapidly with an exceptionally wide range of sawn timber species, grades, lengths and finishes.

Other indications of evolution are too numerous to actually list in full, but a few might be the clear genetic distinction between Neanderthals and modern man; the overlapping features of hominid and pre-hominid fossil forms; the progressive order of the fossil record (that is, first fish, then amphibians, then reptiles, then mammals, then birds; contradicting the Genesis order and all flood models); the phylogenetic relationships between extant and extinct species (including distributions of parasitic genetic elements like Endogenous Retroviruses); the real time observations of speciation in the lab and in the wild; the real time observations of novel functionality in the lab and wild (both genetic, Lenski's E. coli, and organsimal, the Pod Mrcaru lizards); the observation of convergent evolution defeating arguments of common component creationism (new world v. old world vultures for instance); and... well... I guess you get the picture.

Our Herp Atlas used volunteers to record the distribution of reptile and amphibian species across the Commonwealth.

Based on this effective model, the Dragonfly Monitoring Network was created with the aim of gaining a greater knowledge of the distribution and abundance of dragonfly and damselfly species in the Chicago region and, eventually, to expand the network across Illinois and beyond.

Despite their importance, however, the distribution and migration patterns of many of these species are not well understood.

Charles Darwin famously derived his theory of evolution from observations he made of species and their geographic distributions during his five - year voyage around the world on the H.M.S. Beagle.

The characteristics of the home or the home occupants were more important for predicting occurrence than were climatic or regional factors, suggesting that home arthropod distributions can not reliably be predicted from outdoor arthropod predictions but may represent groups of species that are well adapted to human environments.

In places like Yellowstone and eastern Washington and Oregon, however, smaller wolf populations are too far removed from the remaining core of the species» distribution to really make a difference in controlling coyote numbers.

We lack fundamental knowledge about the global distribution of a wide range of disease - causing species from viruses and bacteria to parasites.

The aim of my PhD is to use the distribution of diatom species preserved in sediment cores across the Scotia Sea to reconstruct the position of major ocean boundaries and water masses through time.

Check their warts: New, old - school study shows that wart distribution can differentiate 2 species of octopus.»

The researchers analysed the spatial distribution between the different generations and found no spatial association between the parent trees and their offspring in around three - quarters of the species.

With this new, aggregate climate map in hand, they turned to a technique used primarily by ecologists and biologists, called species distribution modeling, to identify fire - prone regions of the globe.