He was notable for his expansive studies to document all types of American birds and for his detailed illustrations that depicted the birds in their natural habitats.

Other studies suggest that the stabilimenta may actually lead predators to the spider ; species such as A. keyserlingi place their web predominantly in closed, complex habitats such as among sedges.

Primatologists study both living and extinct primates in their natural habitats and in laboratories by conducting field studies and experiments in order to understand aspects of their evolution and behaviour.

To better understand the restoration ecology of native plant and animal communities, the conservation biologist closely studies both their polytypic and monotypic habitats that are affected by a wide range of benign and hostile factors.

These same studies showed that those Hawfinches inhabiting habitats with a temperate climate would often have sedentary behaviours.

Indian foxes were considered to be habitat generalists, but recent studies have shown a strong preference for semi-arid short grassland habitats at multiple scales.

These studies looked into the numbers of species and factors influencing their habitats.

Preliminary studies indicate that the species is not endemic to Bolivia, with habitats that may extend to the south of Peru ( at least to the Tambopata River ).

Although some studies into their habitats have been commenced by several Philippines academic institutions, lack of funding has prevented full study, and they must be still considered endangered, especially from collecting, until further research had been carried out.

Important foraging habitats for juveniles in the central North Pacific have been revealed through telemetry studies.

Several studies have shown that under certain thresholds of forest cover loss or over certain thresholds of road density, wood frogs and other common amphibians begin to " drop out " of formerly occupied habitats.

( B ) to finance, for not more than two years beyond the end of said period, such grants, contracts, cooperative agreements, and studies as may theretofore have been undertaken pursuant to this Act ; ;

and ( C ) to finance, for not more than three years beyond the end of said period, such activities as are required to correlate, coordinate, and round out the results of studies and research undertaken pursuant to this Act: Provided, That funds available in any one year for research and development may, subject to the approval of the Secretary of State to assure that such activities are consistent with the foreign policy objectives of the United States, be expended in cooperation with public or private agencies in foreign countries in the development of processes useful to the program in the United States: And provided further, That every such contract or agreement made with any public or private agency in a foreign country shall contain provisions effective to insure that the results or information developed in connection therewith shall be available without cost to the United States for the use of the United States throughout the world and for the use of the general public within the United States.

Among the specific areas of concentration in which the staff is engaged, are such projects as biological and biochemical studies of the effects of microwaves ; ;

The reaction of chlorine with carbon tetrachloride seemed particularly suited for such studies.

In psychological research on altruism, studies often observe altruism as demonstrated through prosocial behaviors such as helping, comforting, sharing, cooperation, philanthropy, and community service.

As such, anthropology has been central in the development of several new ( late 20th century ) interdisciplinary fields such as cognitive science, global studies, and various ethnic studies.

During this time most of what is known as ethnologie was restricted to museums, such as the Musée de l ' Homme founded by Paul Rivet, and anthropology had a close relationship with studies of folklore.

This was most obvious in the ' Culture and Personality ' studies carried out by younger Boasians such as Margaret Mead and Ruth Benedict.

An astronomer is a scientist who studies celestial bodies such as planets, stars and galaxies.

The symptoms of a so-called Chinese restaurant syndrome or " Chinese food syndrome " have been attributed to a glutamate sensitivity, but carefully controlled scientific studies have not demonstrated such negative effects of glutamate.

The majority of studies indicate antibiotics do not interfere with contraceptive pills, such as clinical studies that suggest the failure rate of contraceptive pills caused by antibiotics is very low ( about 1 %).

There have been no studies or records which show such a link, and it must be pointed out that Ninus and Trebeta were fictional figures, and not historically attested.

It was accepted in political and academic contexts, and was connected with other studies, such as astronomy, alchemy, meteorology, and medicine.

At the end of the 17th century, new scientific concepts in astronomy ( such as heliocentrism ) called astrology into question, and subsequent controlled studies failed to confirm its predictive value.

Along with tarot divination, astrology is one of the core studies of Western esotericism, and as such has influenced systems of magical belief not only among Western esotericists and Hermeticists, but also belief systems such as Wicca that have borrowed from or been influenced by the Western esoteric tradition.

As such, it can be seen as connecting other disciplinary approaches for investigating ancient astronomy: astroarchaeology ( an obsolete term for studies that draw astronomical information from the alignments of ancient architecture and landscapes ), history of astronomy ( which deals primarily with the written textual evidence ), and ethnoastronomy ( which draws on the ethnohistorical record and contemporary ethnographic studies ).

It has been said that these studies require serious attention and that such effects were not clearly tested for by pharmaceutical companies prior to obtaining approval for placing the drugs on the market.

Recent oceanic studies indicate that bacteria from human gut is destroying coral in the Caribbean.

These studies show a tight association between warmer-than-normal conditions ( at least 1 ° C higher than the summer maximum ) and the incidence of coral bleaching.

This is in accord with the sigmoidal pattern of size versus age observed in laboratory studies, i. e. slow initial growth, a phase of very rapid growth beginning at coral feeding and tapering off of growth after the starfish reaches sexual maturity.

It would be expected that this would be most conspicuous in the fish fauna and long-terms studies of coral reef fish communities confirm this expectation.

Early studies ( done at Midway Atoll ) concluded that they frequently stayed inside the lagoons as opposed to the deep ocean, because of the larger abundance of fish found in their coral reefs.

This was followed by extensive studies on sea snakes, marine turtles, bats, and other small mammals and studies on herpetofauna, biogeography, resource use, land use, rain-water harvesting and coral reef socioeconomics, in addition to protected area management planning, ecologically suitable management planning.

These studies examined multiple shore parallel ridges of coral shingle or sand and marine shells.

Current interdisciplinary field efforts include physical, biological, and chemical studies supporting the South Florida Ecosystem Restoration ( SFER ) effort and the underlying health of this ecosystem to the regional Intra-Americas Sea program, as well as the status and health of coral reef ecosystems worldwide.

Its age was estimated from radiocarbon dating of shells from outcropping sediments and carbonate reefs and varies between reported studies.

Classic studies in kelp forest ecology have largely focused on trophic interactions ( the relationships between organisms and their food webs ), particularly the understanding and top-down trophic processes.

Many studies in Southern California have demonstrated that the availability of drift kelp specifically influences the foraging behavior of sea urchins.

Most importantly, studies have demonstrated that MPAs can be effective at protecting existing kelp forest ecosystems and may also allow for the regeneration of those that have been impacted.

These studies have been challenged by several Brazilian ministries, which assert that recent improvements in environmental laws, enforcement and public attitudes have fundamentally reduced the threat posed to forests by such projects.

The area contains many forests, rolling hills, and wetlands and even a natural spring, the area is meant to be forest studies and hiking.

Even though many spruces currently grow in that vicinity, recent pollen studies show that spruce forests came surprisingly late to that stretch of land.

Other independent studies of the problem note that despite lack of government control over forests and the dominance of a political elite in the logging industry, the causes of deforestation are more complex.

Genetic studies tell us that the human line possibly diverged from the chimpanzee line, and the native territory of the latter is the forests of Central Africa nearby.

Monday's radar work included calibration passes over Palm Valley, Northern Territory in Australia, and the Amazon forests of Brazil ; oceanography observations over the Northeast Pacific Ocean, the Gulf Stream, the Southern Ocean and the Gulf of Mexico ; ecology observations over Altona, Manitoba, Canada ; geology observations over the Bighorn Basin, Wyoming ; hydrology studies of Mammoth Mountain, California, and geology studies of the tectonic activity around the Galapagos Islands of the southeastern Pacific.

Other studies have combined current observations and reconstruction / projection techniques to document short-term impacts while also inferring future conditions ; as an example, one recent open-access publication used this approach to investigate the effects of sudden oak death on structural characteristics of redwood forests.

Although this species inhabits secondary forests, studies have shown that decreased habitat quality adversely affects its populations since fewer tree holes offer fewer opportunities to conserve energy, increasing stress and mortality.

They have been said to be sensitive to forest degradation but some studies note that they are less sensitive and capable of persisting even in considerably disturbed forests.

In healthy temperate forests, dead wood comprises up to thirty per cent of all woody biomass. In recent British studies, woods managed for timber had between a third and a seventh less fallen debris than unmanaged woods that had been left undisturbed for many years, while in recently coppiced woods the amount of CWD was almost zero.

The effects of old-growth forests in relation to Global Warming has been contested in various studies and journals.

While some studies that old-growth forests are an important part of carbon sequestration and its impacts on climate change and climate change mitigation.

These studies show that during the Cretaceous there were no polar ice caps, and forests would have extended all the way to the South Pole, and life could have flourished there during the summer.

This site has also been the focus of the vast majority of studies of dry forests.

The rainforests, tropical forests, marine areas and wetlands of Costa Rica are the subject of many university and scientific organization studies.

The BDFFP would become one of the most important studies of fragmentation in tropical forests because it is the only long running study with data before fragments were created with the original data being from the continuous forest ( Laurance et al.

Many studies in BDFFP also attempt to find ways to apply research to restoration, conservation and management practices of tropical forests.

This view is however being challenged by other studies showing that despite the negative albedo effects of temperate forests there is a net benefit and in addition there is weak evidence of a positive albedo effect in the tropics from clouds generated by forests