Evolution and Ecology Slideshow
... The comparative (abundance) number of individuals of each species present is called species evenness For example, if a scientist found 20 different plant species in a 1 m2 area, but only ONE of each species, it could be said that there is a high species evenness, and a high species richness. ...
... The comparative (abundance) number of individuals of each species present is called species evenness For example, if a scientist found 20 different plant species in a 1 m2 area, but only ONE of each species, it could be said that there is a high species evenness, and a high species richness. ...
Extinct - Shefferly Science
... its normal range or natural environment Many are transported by accident Biocontrol: Species transported intentionally to control other “problem” species populations Characteristics: Fast growth/reproduction Live in wide range of environments Usually harmful to environment Outcompete n ...
... its normal range or natural environment Many are transported by accident Biocontrol: Species transported intentionally to control other “problem” species populations Characteristics: Fast growth/reproduction Live in wide range of environments Usually harmful to environment Outcompete n ...
finding the law: primary secondary sources in print
... 16 U.S.C. 1531: Congressional findings and declarations of purposes and policy The Congress finds and declares that – (a)(1) Various species of fish, wildlife, and plants in the U.S. have been rendered extinct as a consequence of economic growth and development untempered by adequate concern and con ...
... 16 U.S.C. 1531: Congressional findings and declarations of purposes and policy The Congress finds and declares that – (a)(1) Various species of fish, wildlife, and plants in the U.S. have been rendered extinct as a consequence of economic growth and development untempered by adequate concern and con ...
"Rain Forest Biome" pdf file
... let leaves develop and there's virtually no undergrowth. In particular, there are very few herbaceous species. Moving up from 1 to 20 m above ground, we still find a moderate light (approximately 5%), high humidity and no wind at all. This means there are very few plants with anemogamous pollination ...
... let leaves develop and there's virtually no undergrowth. In particular, there are very few herbaceous species. Moving up from 1 to 20 m above ground, we still find a moderate light (approximately 5%), high humidity and no wind at all. This means there are very few plants with anemogamous pollination ...
FOOD WEBS READINGS: FREEMAN Chapter 54
... different species, that have similar requirements or tolerances. • All species that interact with each other in a local area (acres or 1,000’s of square meters or smaller). ...
... different species, that have similar requirements or tolerances. • All species that interact with each other in a local area (acres or 1,000’s of square meters or smaller). ...
1 Biology 413 (Zoogeography) Final Exam Winter Term 2
... Deterministic, equilibrial hypotheses (assumes a steady state has been reached): (3) Higher productivity (i.e., solar radiation, potential evapotranspiration) in the tropics leads to higher resource availability, such that species can more finely partition a resource gradient (increased species pack ...
... Deterministic, equilibrial hypotheses (assumes a steady state has been reached): (3) Higher productivity (i.e., solar radiation, potential evapotranspiration) in the tropics leads to higher resource availability, such that species can more finely partition a resource gradient (increased species pack ...
The latitudinal diversity gradient
... hemispheres. Consider a domain represented as a line that is split into three equal zones (northern, central and southern). If species occupied random contiuous latitudinal ranges (segments of that line) then we would expect to find approximately 55% of species in each of the northern and southern z ...
... hemispheres. Consider a domain represented as a line that is split into three equal zones (northern, central and southern). If species occupied random contiuous latitudinal ranges (segments of that line) then we would expect to find approximately 55% of species in each of the northern and southern z ...
Ch18 Student Presentation
... -ecosystem management that focuses on a large single ecosystem Examples: 1) Mediterranean Action Plan Figure 18.10 -21 countries with numerous pnas work together to try and control pollution, which is one of the biggest threats to pnas 2) Management of Pacific Northwest Forests -partnership between ...
... -ecosystem management that focuses on a large single ecosystem Examples: 1) Mediterranean Action Plan Figure 18.10 -21 countries with numerous pnas work together to try and control pollution, which is one of the biggest threats to pnas 2) Management of Pacific Northwest Forests -partnership between ...
Chapter 1
... maple trees produce maple trees. Flies begin life as eggs, then become maggots, and then become adult flies. Plants obtain their energy from sunlight. Animals obtain their energy from the food they eat. ...
... maple trees produce maple trees. Flies begin life as eggs, then become maggots, and then become adult flies. Plants obtain their energy from sunlight. Animals obtain their energy from the food they eat. ...
Managing succession in rangelands g Ecological Restoration
... Result in change of state T1, good rainfall; T2, decades of shrub growth; T3, fire; T4, resprouting of shrubs; T5, no resprouting shrubs; T6, fire with good shrub recruitment; T7, increased fire frequency or grazing removes most shrubs ...
... Result in change of state T1, good rainfall; T2, decades of shrub growth; T3, fire; T4, resprouting of shrubs; T5, no resprouting shrubs; T6, fire with good shrub recruitment; T7, increased fire frequency or grazing removes most shrubs ...
Chapter 4 - Department of Environmental Sciences
... • Mosses invade an area and provide a place for soil to accumulate. • Larger plants germinate in the new soil layer resulting in additional soil formation. • Eventually shrubs and trees will invade the area. ...
... • Mosses invade an area and provide a place for soil to accumulate. • Larger plants germinate in the new soil layer resulting in additional soil formation. • Eventually shrubs and trees will invade the area. ...
Intro to Ecology
... Community Interactions Types of interactions: Competition—when organisms attempt to use a resource in the same place at the same time. Competitive exclusion principle—no two species occupy the same niche in the same habitat. ...
... Community Interactions Types of interactions: Competition—when organisms attempt to use a resource in the same place at the same time. Competitive exclusion principle—no two species occupy the same niche in the same habitat. ...
Species Shifts - Alaska Sea Grant
... can change in abundance or distribution. That means there may be more or fewer of them, and they can extend their range into areas where they were not previously common or were entirely absent. A warming climate may allow a species to becomes more abundant because of greater food availability, less ...
... can change in abundance or distribution. That means there may be more or fewer of them, and they can extend their range into areas where they were not previously common or were entirely absent. A warming climate may allow a species to becomes more abundant because of greater food availability, less ...
Limiting the Ballast Water Vector
... destroyed commercial shellfish beds and preys on large numbers of native oysters and crabs More than 400 people in Galveston Bay were sickened in 1998 by shellfish that had been contaminated by bacterium never before detected in the U.S. but common in Asia. USDA believes it arrived via ballast water ...
... destroyed commercial shellfish beds and preys on large numbers of native oysters and crabs More than 400 people in Galveston Bay were sickened in 1998 by shellfish that had been contaminated by bacterium never before detected in the U.S. but common in Asia. USDA believes it arrived via ballast water ...
A new Phyllolabis from Israel, with reduced wings
... about 30 km apart, they are located on both sides of the Rift Valley, which appears to be a significant barrier to the distribution of species from both east and west of the Rift. While this fact may partly explain the diverging evolution of these species, the edaphic conditions of their habitats (b ...
... about 30 km apart, they are located on both sides of the Rift Valley, which appears to be a significant barrier to the distribution of species from both east and west of the Rift. While this fact may partly explain the diverging evolution of these species, the edaphic conditions of their habitats (b ...
Ecosystem Connections: who, what, where, when Remember
... Are they temperate species adapted to the tropics or vice versa? What is the age structure of the population? How do they cope with predation? And many more ….!! ...
... Are they temperate species adapted to the tropics or vice versa? What is the age structure of the population? How do they cope with predation? And many more ….!! ...
Succession
... •4th –Animals that rely on plants slowly move in. •5th –Climax Community is established. ...
... •4th –Animals that rely on plants slowly move in. •5th –Climax Community is established. ...
Community Ecology - Faculty Web Sites
... Food webs summarize the feeding relationships in a whole community. Because many organisms feed at multiple trophic levels, food webs can be quite complex. ...
... Food webs summarize the feeding relationships in a whole community. Because many organisms feed at multiple trophic levels, food webs can be quite complex. ...
What are the effects of the loss of an ecological niche?
... Like every other species, humans occupy their own ecological niche, although no animals rely on humans for food. However, humans do not serve a part in the food chain as they grow their own food. They do, however destroy food ...
... Like every other species, humans occupy their own ecological niche, although no animals rely on humans for food. However, humans do not serve a part in the food chain as they grow their own food. They do, however destroy food ...
APES 3 Ecology Notes
... a) the ability of populations to increase in number b) number of possible offspring produced under optimal conditions 2) environmental resistance—all biotic and abiotic factors that can limit population growth The relationship between these two determines a population’s status: growing, declining, o ...
... a) the ability of populations to increase in number b) number of possible offspring produced under optimal conditions 2) environmental resistance—all biotic and abiotic factors that can limit population growth The relationship between these two determines a population’s status: growing, declining, o ...
Bifrenaria
Bifrenaria, abbreviated Bif. in horticultural trade, is a genus of plant in family Orchidaceae. It contains 20 species found in Panama, Trinidad and South America. There are no known uses for them, but their abundant, and at first glance artificial, flowers, make them favorites of orchid growers.The genus can be split in two clearly distinct groups: one of highly robust plants with large flowers, that encompass the first species to be classified under the genus Bifrenaria; other of more delicate plants with smaller flowers occasionally classified as Stenocoryne or Adipe. There are two additional species that are normally classified as Bifrenaria, but which molecular analysis indicate to belong to different orchid groups entirely. One is Bifrenaria grandis which is endemic to Bolívia and which is now placed in Lacaena, and Bifrenaria steyermarkii, an inhabitant of the northern Amazon Forest, which does not have an alternative classification.