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Chapter 7, Processes of Macroevolution
Chapter 7, Processes of Macroevolution

... that seen within the same species to include additional aspects seen between two different species. ...
Interactions and Ecosystems
Interactions and Ecosystems

... ...
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...  Community: an association of different populations of organisms that live and interact in the same place at the same time o the organisms in a community play a variety of roles and interdependent on one another in many ways  Ecological niche: an organism’s role within the structure and function o ...
Chapter 4 Section 2 Vocabulary
Chapter 4 Section 2 Vocabulary

... Any relationship in which two species live closely together. Both species benefit from one another. One member of the association benefits and the other is neither helped nor harmed. One organism lives on or inside another harming it. The series of predictable changes that occur in a community over ...
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Species Competition

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Ecology
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Species interactions and symbiotic relationships

... Population – group of individuals of the same species living in the same area, potentially interacting ...
APES review guide for Exam II (chapters 4 and 5) Name: Exam date
APES review guide for Exam II (chapters 4 and 5) Name: Exam date

... 9. Summarize ecological succession. Differentiate between primary and secondary succession. 10. Describe the potential damage to an ecosystem and indigenous species when an invasive species is introduced. (Provide examples) 11. Outline the temperature and precipitation conditions in each biome. 12. ...
Unit 11-Ecology
Unit 11-Ecology

... ◦ Species with narrow niches ◦ Koala bear (eats only leaves of eucalyptus tree) ...
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Ecology Test Study Guide: Students will be expected to… Identify

... Ecology Test Study Guide: Students will be expected to… ...
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Why are there so many species?

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Communities and Ecosystems

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Understanding Our Environment
Understanding Our Environment

... species will occupy the same niche and compete for exactly the same resources for an extended period of time.  One will either become locally extinct, or partition the resource and utilize a sub-set of the same resource. Interactions among species are added to regulation by each species’ response t ...
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The Important Role of Ecological Connectivity for

... A loss of biodiversity in the Alps, as induced by climate change, decreases the resilience of the entire ecosystem. A high number of species - as species are considered a major component part of the system - ensures the functionality of the ecosystem. Its multi-functionality can be achieved by suppo ...
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1. Ecology Introductory Concepts

... An ecosystem is a natural unit which consists of several habitats and their communities; it thus consists of both abiotic and biotic components and encompasses all their interactions The habitat of an organism is its place of residence; this is where it lives, such as at the bottom of a lake, in a c ...
chapter 7
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... SUCCESSION, AND SUSTAINABILITY Outline A. Community structure and diverse species help define an ecosystem. B. Different species’ interactions and influences on their environments are not completely clear. C. Ecological communities are constantly changing, establishing communities, responding to dis ...
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9.16.203 PPT Eco sucession0n.pptx - Alliance Ouchi

... •  A  Rainforest  has  so  many  species  it  would  rarely  die  off,   chances  are  one  species  would  live,  it  is  persistent.    However   it  is  so  complex  that  if  it  dies  off  it  cant  come  back,  it  is  not ...
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Interactions between species and their effects Type of Interaction

... Fundamental ...
EcolAspectsEPM2
EcolAspectsEPM2

Evolution
Evolution

... Natural selection: Process by which species change over time in response to environmental changes and competition for resources. Extinct: When no more individuals of a species remain. Biodiversity: The variety of living things. It is measured as the differences between individuals of the same specie ...
APES 9 Week Review Sheet
APES 9 Week Review Sheet

... Genetic Variation: the unique combination of traits in the environment Overproduction: population number is over carrying capacity Evolution: series of changes in species overtime (bacteria become resistant to antibiotics) Natural Selection: those organisms better suited for the environment survive ...
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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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