|
Search over 100 encyclopedias and dictionaries: |
Research categories | Follow us on Twitter |
Research categories
View all topics in the newsView all reference sources at Encyclopedia.com |
|||
|
decline
... Read more |
|
declination
declination in astronomy, one of the coordinates in the equatorial coordinate system . The declination of a celestial body is its angular distance north or south of the celestial equator measured along its hour circle .... Read more |
|
Rust Belt
Rust Belt or Rustbelt, economic region in the NE quadrant of the United States, focused on the Midwestern (see Midwest ) states of Illinois, Indiana, Michigan, and Ohio, as well as Pennsylvania. The term gained wide use in the 1970s as the formerly dominant industrial region became noted for... Read more |
|
Benton Harbor
Benton Harbor city (1990 pop. 12,818), Berrien co., SW Mich., on Lake Michigan at the mouth of the St. Joseph River opposite St. Joseph; inc. 1869. A long-time fruit industry, tourist, and industrial center, noted for appliance manufacturing, the city declined in the late 20th cent., experiencing... Read more |
|
Leitrim
Leitrim , county (1991 pop. 25,301), 589 sq mi (1,526 sq km), N Republic of Ireland. The county seat is Carrick-on-Shannon . Leitrim is divided into two parts by Lough Allen; the northern part is mountainous, the southern part level. Potatoes and oats are grown. Industries include textiles,... Read more |
|
Braddock
Braddock borough (1990 pop. 4,682), Allegheny co., W Pa., an industrial suburb of Pittsburgh, on the Monongahela River; settled 1742, inc. 1867. Once a steel-manufacturing center, the population has decreased with the decline of the industry. In 1755, Gen. Edward Braddock was defeated there by... Read more |
|
S-shaped growth curve
S-shaped growth curve (sigmoid growth curve) A pattern of growth in which, in a new environment, the population density of an organism increases slowly initially, in a positive acceleration phase; then increases rapidly approaching an exponential growth rate as in the J-shaped curve; but then... Read more |
|
Malabo
Malabo , city (1997 est. pop. 50,000), capital of Equatorial Guinea, on Bioko island, in the Gulf of Guinea. It is the chief port and commercial center of Bioko. Fish processing is the city's main industry, and cacao and coffee are the leading exports. Malabo was founded in 1827 by the British on... Read more |
|
Heritability
heritability A measure of the degree to which the variance of a particular phenotype is caused by genetic factors. It is given by a value between 0 and 1 and effectively measures the extent to which offspring resemble their parents relative to the population mean. Estimates of heritability are... Read more |
|
Maasai
Maasai PRONUNCIATION:MAH-sigh LOCATION:Kenya; Tanzania POPULATION:Over 150,000 LANGUAGE:Maa (Olmaa) RELIGION:Traditional beliefs 1 • INTRODUCTION The Maasai are thought of as the typical cattle herders of Africa, yet they have not always been herders, nor are they... Read more |
|
|
Declining toad population linked to warming trend; Chain reaction: Amphibian...
...change with declining amphibian populations. Other recent...changes to population fluctuations...like all amphibians, lay their...Barbara. Amphibian populations have been declining ... |
|
|
Profile: Declining amphibian populations in Massachusetts and a group of...
...0000 Profile: Declining amphibian populations in...of reports of declining amphibian populations in the US and...baseline data on amphibians, scientists have...natural declines in population ... |
|
|
Declining amphibian populations: the problem of separating human impacts from...
...REPORTED Declines of amphibian populations, some...census data on amphibians. Conclusions of...about the status of amphibian populations [1] were based...activities from natural population fluctuations without...apparent ... |
|
|
Declining amphibian populations.
...WORLDWIDE DECLINES IN AMPHIBIAN POPULATIONS ATtracted wide attention...can severely reduce population size locally, or...census data for four amphibians (three salamanders...juvenile recruitment. Population declines were found...coincidental ... |
|
|
Study Examines Declining Amphibian Populations.(research by Oregon State...
...decades. Overall numbers of amphibians dropped 15 percent per year...doesn't think there are population declines for amphibians," said Oregon State University...determined the exact cause of the amphibian declines, they suspect...to the disappearance of ... |
|
|
Where have all the froggies gone? (declining amphibian populations)
...many of the frogs, toads, and other amphibians they study seemed to be vanishing before...member, to hold a workshop on the amphibian declines--a meeting held last week...brought together experts in ecology, amphibians physiology, and global change to hear...that tiger ... |
|
|
Amphibian assault. (frog and salamander populations are declining at several...
...sound the alarm over amphibian declines in the Great Smokies, overall population reductions could...humans. Because amphibians mate and reproduce...birds and mammals--amphibians are a critical link...If a frog or toad population is hurting, ... |
|
|
Amphibians Declining Worldwide
...Amphibians Declining Worldwide...are some population declines for amphibians,'' said...declines in populations of frogs...and other amphibian species...creatures, amphibians are considered...studying ... |
|
|
STUDY: AMPHIBIANS DECLINING SINCE '60S
...declines for amphibians," said Andrew...catastrophic declines in populations of frogs, toads...salamanders and other amphibian species, particularly...other creatures, amphibians are considered...scientists studying amphibians, then ... |
|
|
Amphibian conservation strategies: translocating an entire population of...
...dramatic decline of amphibian populations worldwide is an urgent...crepitans blanchardi), is declining at an alarming rate...Amphibian populations are declining more rapidly than either...Special Concern, is ... |