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Scholarly Interest Report
Scholarly Interest Report

... I am interested in the evolutionary aspects of what is generally considered an ecological process, including rapid evolution during the establishment phase of potential invasions, the relationship between a community’s evolutionary history and its susceptibility to invasion, and the consequences of ...
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Factors that affect Climate

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Speciation - WordPress.com
Speciation - WordPress.com

... Sympatric speciation • Under the sympatric model – More restrictive conditions for speciation – Individuals of the two diverging groups may come into contact and reproduce – When they do, the genetic differences developing between the groups would be eliminated ...
PowerPoint Rubric: Ecology Test Review
PowerPoint Rubric: Ecology Test Review

... 4. A habitat is where an organism lives, the niche is the job that it performs; explain what happens when a non-native species is introduced into an environment where a native species already occupies the niche. It may out compete and drive the native species out and take over the niche ...
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Chapter 7

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Natural selection lecture 12-12
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Biological Responses - NCEA Level 3 Biology
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Biogeography - Cockrell - Tarleton State University

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WHAT IS THE BIOSPHERE

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Lower Murray River aquatic ecological community
Lower Murray River aquatic ecological community

... practices and the introduction of non-native species. Many aquatic habitats are now degraded, and many native species have experienced declines in their numbers and distribution – some to the point where they are now listed as threatened. This ecological community is listed as an endangered ecologic ...
Amy Thomson - Biology Department | UNC Chapel Hill
Amy Thomson - Biology Department | UNC Chapel Hill

... set up a study tracing the community structure at various elevations as the Fraser Fir population declines over the next several decades. It might be the case that the loss of this species will leave more niches unoccupied (Tilman 1997) and will cause the rest of the population to be more vulnerable ...
Community ecology from a functional perspective
Community ecology from a functional perspective

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Ecological and evolutionary responses in complex communities
Ecological and evolutionary responses in complex communities

... The success of many introduced species has been attributed to escape from enemies (Enemy release hypothesis – Keane and Crawley 2002) as well as to escape from the costs of defense (Evolution of increased competitive ability EICA – Blossey and Notzold 1995). The Shifting defense hypothesis suggests ...
BIOL 252 - American University of Beirut
BIOL 252 - American University of Beirut

... Course description This is an introductory course in ecology that covers most of the basic concepts in this field namely, environmental factors, the main physiological, morphological and behavioral adaptations of various organisms to these factors, populations, their structures, dynamics and positiv ...
Biodiversity and conservation in Pakistan
Biodiversity and conservation in Pakistan

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Big Picture - Integrative Biology
Big Picture - Integrative Biology

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What is Ecology?
What is Ecology?

Power Point Introduction
Power Point Introduction

... without harming the other (herbivores eating plants). Mutualism –an association advantageous to both species (bacteria in the intestines of herbivores that assist with digestion). Parasitism –an association advantageous to one species, at the expense and harm of another (parasites). Predation –an ac ...
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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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