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US Geological Survey
US Geological Survey

... playing key roles. Greater amounts of solar energy, heat, and humidity at tropical latitudes lead to more plant growth. -Causes of biodiversity: 1. habitat alteration- Every human changes the habitat around us like farming, grazing, clearing forests, dams, urbanization, etc. 2. Invasive species- our ...
Community Ecology - Welcome to EZ Website
Community Ecology - Welcome to EZ Website

... factors may form sharp borders. Ex: soil types Result – the Community may look very much like the Interactive Hypothesis. ...
CH 17 Preserving Biodiversity
CH 17 Preserving Biodiversity

... Biological processes (nitrogen fixation) ...
Community Ecology - Crestwood Local Schools
Community Ecology - Crestwood Local Schools

... factors may form sharp borders. Ex: soil types Result – the Community may look very much like the Interactive Hypothesis. ...
Unit 3 Sustainability and Interdependence
Unit 3 Sustainability and Interdependence

... the elimination of heterozygotes. Test crosses can be used to identify unwanted individuals with heterozygous recessive alleles. An Inbreeding depression is the accumulation of recessive, deleterious homozygous alleles. Self- pollinating plants are naturally inbreeding and less susceptible to inbree ...
Envi Sci @ CHS
Envi Sci @ CHS

... deliberately or accidentally introduced into an ecosystem by humans. 5. Type of species interaction in which both participating species generally benefit. 8. Organism that is captured and serves as a source of food for an organism of another species (the predator). 14. Process in which communities o ...
Interactions Among Living Things
Interactions Among Living Things

... • Commensalism- the relation between two different kinds of organisms when one receives benefits from the other without affecting or damaging it. •Barnacles adhering to the skin of a whale or shell of a mollusk: barnacle is a mollusks that benefits by finding a habitat where nutrients are available ...
Biology - Marric.us
Biology - Marric.us

... a. Students know biodiversity is the sum total of different kinds of organisms and is affected by alterations of habitats. b. Students know how to analyze changes in an ecosystem resulting from changes in climate, human activity, introduction of nonnative species, or changes in population size. c. S ...
APES Chapter 4 Study Guide - Bennatti
APES Chapter 4 Study Guide - Bennatti

... wolf predation. (Also..tho not in book… ranchers were paid a financial reward for any wolf dens on their property.) ...
Biological diversity in Iceland
Biological diversity in Iceland

... • The project is recent and ongoing and I want to engage people in a dialog about it ...
Macrofungal Diversity at the Gordon Natural Area
Macrofungal Diversity at the Gordon Natural Area

... Previous studies at the GNA have catalogued the diversity of trees, mosses, shrubs, other plants, and vertebrate animals, but none have surveyed MF diversity there. In an effort to continue conservation at the GNA and assess its overall taxonomic diversity, our study was a comprehensive effort to ca ...
Community Ecology
Community Ecology

... how interactions among species affect the members of a community. For example, invasion of communities by exotic species can be especially damaging. Consider the effects of the zebra mussel, the lamprey, and the alewife in the Great Lakes, or the effect of purple loosestrife along the shorelines of ...
Ch. 3 Reading questions 1. What is an ecosystem and
Ch. 3 Reading questions 1. What is an ecosystem and

... 2. What effect does Earth’s rotation have on atmospheric circulation and ocean currents? 3. In what ways are atmospheric and oceanic circulation patterns similar? How are they different? 4. What characteristic are used to distinguish between terrestrial biomes? 5. What characteristics of a terrestri ...
Interactions within Communities
Interactions within Communities

... • Avoidance of competition by occupying different ecological niches ...
climax
climax

... 4- C- Climax communities are usually more rich in species biodiversity than communities that are undergoing primary succession. Climax communities are a mature ecosystem. Generally, they have had time to accumulate many species that could not live during the early stages of the ecosystem, along with ...
Rachel Markey, “Observed Phenology and Winter Injury of Seedlings Within the Northern  Forest Mesocosm (NFoRM) Climate Change Experiment”, Aiken Forestry Sciences 
Rachel Markey, “Observed Phenology and Winter Injury of Seedlings Within the Northern  Forest Mesocosm (NFoRM) Climate Change Experiment”, Aiken Forestry Sciences 

... phenology, which has large effects on productivity and species interactions. Climatic change  may also have increased effects on plant injury, which could influence phenological cycles by  altering a plant’s ability to break bud. This study seeks to explore the effects of increased  warming and snow ...
Document
Document

... 10. How did Connell test for competition? Hint: Chthalamus and Balanus. 11. Define competition, predation, parasitism, commensalism and mutualism. 12. What is a resource utilization curve (aka tolerance curve). How is it related to a species niche? 13. What is niche specialization? 14. Describe the ...
Chapter 19
Chapter 19

... • Competition between two species is rare in nature because of 2 reasons: – One would outcompete OR – A new niche would be formed by dividing up resources – resource partitioning • Sympatric – closely related species that divide up resources – must live close to each other • Allopatric – closely rel ...
Chapter 9 Sustaining Biodiversity
Chapter 9 Sustaining Biodiversity

...  Background extinction rate – low rate  1/million species = 0.0001%  Allowed for balance between extinction and formation of new species  Mass extinction – many in a short time  Recovery can happen, but takes millions of years ...
COMMUNITY ECOLOGY: INTERACTIONS BETWEEN POPULATIONS
COMMUNITY ECOLOGY: INTERACTIONS BETWEEN POPULATIONS

... BETWEEN POPULATIONS ...
Endangered Species Coalition 2015 Top 10 Report Nominating Form
Endangered Species Coalition 2015 Top 10 Report Nominating Form

... populations remain in Oregon; Crater Lake, Mt. Hood. Also see information available here. The Sierra Nevada red fox is among the rarest and most imperiled mammals in North America. By virtue of its tiny population size, it is at imminent risk of extinction. It’s also extremely cute, and occupies, or ...
ECOSYSTEM RESPONSE TO INVASIVE SPECiES
ECOSYSTEM RESPONSE TO INVASIVE SPECiES

... Fraxinus) in eastern North American forests. This could initiate a cascade of changes in plant, animal, and microbial communities; soil and water chemistry; and ultimately forest health and ecosystem stability. Our goal is to understand how ecosystems respond to wide-scale disturbance by studying ch ...
Extinct
Extinct

... • Small population size - species with limited habitats • Extremely specialized species • Species with low reproductive potential • Species that require large territories • Species with limited dispersal ability ...
Ecology - mrsdrysdalescience
Ecology - mrsdrysdalescience

... • Competition is the endeavor of 2 or more organisms to gain the same particular thing. • Competition occurs when resources are limited • Leads to a reduction in the survivorship, growth, and/or reproduction of the competing individuals. • Inter & intra ...
Biodiversity Powerpoint
Biodiversity Powerpoint

... resources that future 2. Biodiversity helps generations will depend maintain important on. ecological processes that help 6. Is important for inspiring support life on earth. inventors and artists and for spurring curiosity and 3. Our lives would not imagination. be as rich if we lost species. 7. Is ...
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Introduced species



An introduced, alien, exotic, non-indigenous, or non-native species, or simply an introduction, is a species living outside its native distributional range, which has arrived there by human activity, either deliberate or accidental. Non-native species can have various effects on the local ecosystem. Introduced species that become established and spread beyond the place of introduction are called invasive species. Some have a negative effect on a local ecosystem. Some introduced species may have no negative effect or only minor impact. Some species have been introduced intentionally to combat pests. They are called biocontrols and may be regarded as beneficial as an alternative to pesticides in agriculture for example. In some instances the potential for being beneficial or detrimental in the long run remains unknown. A list of some introduced species is given in a separate article.The effects of introduced species on natural environments have gained much scrutiny from scientists, governments, farmers and others.
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