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Lesson 1: Biodiversity TEK: 7.10 (A) (B) (10) Organisms and
Lesson 1: Biodiversity TEK: 7.10 (A) (B) (10) Organisms and

... student is expected to: (A) observe and describe how different environments, including microhabitats in schoolyards and biomes, support different varieties of organisms; (B) describe how biodiversity contributes to the sustainability of an ecosystem. Key Understandings: Biodiversity contributes to t ...
Ecology Practice
Ecology Practice

... E. an increase in predators 3. Which of the following statements is false? A. Increase in the size of a predator population is accompanied by a decrease in the size of the prey population. B. No two species can occupy the same ecological niche. C. Density-dependent limiting factors are not related t ...
File - Ms. Oldendorf`s AP Biology
File - Ms. Oldendorf`s AP Biology

... (D) It allows for increased mutation rates in the surviving species. (E) It forces predators to become omnivores. (23) A parasite may be described as an organism that derives nourishment from another living organism and (A) becomes necessary to the life of the host (B) is neutral in its effect on th ...
An Organism`s Niche
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... • It includes their physical home, the environmental factors necessary for survival, and all interactions with other organisms ...
Protected Area Management
Protected Area Management

... Habitats and biotopes Description and notes: •Biological organisms and communities/biodiversity (biotopes=spatial and biotic environment of a biocenosis, habitats=the spatial environment of species). •It is affected by climatic, geological, chemical and biological conditions and also can depend on m ...
communities
communities

... Definition  groups of different populations of organisms living together in the same place at the same time  Communities interact through competition, ...
Ecology
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... Malthus concluded that human populations would be kept in check by food supply and there would be intense competition for that food supply. The result: Intense social strife and war. Malthus’ book was a bombshell! Though Malthus intended his ideas to be applied to human societies, could this idea be ...
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... 4. Which of the following is NOT characteristic of most parasites? a. They are specialists and usually are able to affect only one variety of hosts. b. They inflict serious injury and kill their hosts. c. Some reside inside their hosts, whereas others live outside their hosts. d. Their host may be a ...
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I) The Relations of Organisms to their Physical

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Interactions Among Living Things

... • If death rate > birth rate, then population size decreases • If birth rate > death rate, then population size increases • When the death rate exceeds the birth rate, the size of the population decreases, resulting in a decrease in the size of the population of their prey. As this occurs, the preda ...
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Ecology Presentation

...  Bands of organisms may form in relation to a gradient in a major environmental factor. This is Zonation.  The plants and animals in the various zones have different adaptations that fit the slightly ...
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Ecosystems
Ecosystems

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Ant mutualisms
Ant mutualisms

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AP Biology Test - Phillips Scientific Methods
AP Biology Test - Phillips Scientific Methods

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Lecture 9 Ecosystems W12 - Spokane Community College
Lecture 9 Ecosystems W12 - Spokane Community College

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Ecological impacts of metal pollution in the Fal and Hayle estuaries
Ecological impacts of metal pollution in the Fal and Hayle estuaries

... Grossly contaminated estuaries in Cornwall provide excellent systems for the study of the ecological effects of metal pollution. They also allow us to compare the sensitivity of different monitoring methods. I will review the published literature on the Fal and the Hayle estuaries, and a number of p ...
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doc - Michigan State University

... uncontrolled fecundity, low parental involvement with the young, tolerance for “degraded” or squalid conditions, aggressiveness, predatory behavior, and so on. This kind of pejorative stereotyping may be no more true in the ecological than in the social context. The Pacific oyster, although better a ...
Bill Analysis - Texas Legislature Online
Bill Analysis - Texas Legislature Online

... reasonable notice, and provides that other uses of the land are subordinate to ecological research. The bill defines "authorized official of a public or private college or university" to mean an administrative official of a public or private college or university who has the authority to enter into ...
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Powerpoint: Chapter 5 notes
Powerpoint: Chapter 5 notes

... These occur in areas of exposed ground that are subject to intense freeze and thaw cycles Over thousands of years, repeated freezing and thawing of groundwater in loose gravel and mud slowly pushes the larger rocks away from the pressure centre of finer grained material where the water is retained. ...
Feeding Relationships
Feeding Relationships

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Nomination form for ecological communities
Nomination form for ecological communities

... For Criterion 1 there must be a very large, large and moderate reduction in geographic distribution, respectively, for Critically Endangered, Endangered and Vulnerable. For Criterion 2 there must be a very highly, highly and moderately restricted geographic distribution (in combination with other fa ...
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Ecological fitting



Ecological fitting is ""the process whereby organisms colonize and persist in novel environments, use novel resources or form novel associations with other species as a result of the suites of traits that they carry at the time they encounter the novel condition.” It can be understood as a situation in which a species' interactions with its biotic and abiotic environment seem to indicate a history of coevolution, when in actuality the relevant traits evolved in response to a different set of biotic and abiotic conditions. The simplest form of ecological fitting is resource tracking, in which an organism continues to exploit the same resources, but in a new host or environment. In this framework, the organism occupies a multidimensional operative environment defined by the conditions in which it can persist, similar to the idea of the Hutchinsonian niche. In this case, a species can colonize new environments (e.g. an area with the same temperature and water regime) and/or form new species interactions (e.g. a parasite infecting a new host) which can lead to the misinterpretation of the relationship as coevolution, although the organism has not evolved and is continuing to exploit the same resources it always has. The more strict definition of ecological fitting requires that a species encounter an environment or host outside of its original operative environment and obtain realized fitness based on traits developed in previous environments that are now co-opted for a new purpose. This strict form of ecological fitting can also be expressed either as colonization of new habitat or the formation of new species interactions.
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