Ch 21 Community Ecology
... Compare & contrast the three forms of symbiosis defined by most biologists. (Not in text) ...
... Compare & contrast the three forms of symbiosis defined by most biologists. (Not in text) ...
Chapter 18
... Commensalism – a relationship in which one organism benefits and the other neither is benefits or is harmed Example: Spanish moss and trees ...
... Commensalism – a relationship in which one organism benefits and the other neither is benefits or is harmed Example: Spanish moss and trees ...
ECOLOGY-2
... The figure above shows that small rocks (“unstable small rocks”) are normally dominated by a single species of alga (Ulva, sea lettuce). Similar rocks that are cemented to the substrate (“stabilized small rocks”) eventually develop a richer algal community. ...
... The figure above shows that small rocks (“unstable small rocks”) are normally dominated by a single species of alga (Ulva, sea lettuce). Similar rocks that are cemented to the substrate (“stabilized small rocks”) eventually develop a richer algal community. ...
Why is the competition paradigm so prevalent? based on
... Several researchers felt that competition was more NB than other ecological processes After 1980s: Researchers questioned why competition was necessarily the most NB interaction. Predation seems more NB in marine habitats. Do communities have to be in equilibrium? Does competition ever depart from e ...
... Several researchers felt that competition was more NB than other ecological processes After 1980s: Researchers questioned why competition was necessarily the most NB interaction. Predation seems more NB in marine habitats. Do communities have to be in equilibrium? Does competition ever depart from e ...
WRL reference - Wallace Resource Library
... Feeding strategy: Methods and behavioural traits used by specific individuals or species to obtain their food. Habitat: The place where an organism or population of organisms lives. Mangroves: A tropical intertidal ecosystem which is dominated by mangrove trees. Niche: The exact role of an organism ...
... Feeding strategy: Methods and behavioural traits used by specific individuals or species to obtain their food. Habitat: The place where an organism or population of organisms lives. Mangroves: A tropical intertidal ecosystem which is dominated by mangrove trees. Niche: The exact role of an organism ...
Nerve activates contraction
... Interspecific Competition • Species competing for a resource that is in short supply. ▫ Competition can be detrimental to species because it can lead to the elimination of one of the species. One species may use the resources better One species may have a higher reproductive ...
... Interspecific Competition • Species competing for a resource that is in short supply. ▫ Competition can be detrimental to species because it can lead to the elimination of one of the species. One species may use the resources better One species may have a higher reproductive ...
Ecosystem Based Management in the National Marine Sanctuary
... Habitat distribution and area Spatial use and abundance by life stage Trophic interactions and structure Fecundity and survival ...
... Habitat distribution and area Spatial use and abundance by life stage Trophic interactions and structure Fecundity and survival ...
Living Things - Madison County Schools
... • An organism’s role in its habitat, or how it makes its living, is called its niche. A niche includes the types of food the organism eats, how it obtains this food, which other species use it as food, when and how it reproduces, and the conditions needed to survive. ...
... • An organism’s role in its habitat, or how it makes its living, is called its niche. A niche includes the types of food the organism eats, how it obtains this food, which other species use it as food, when and how it reproduces, and the conditions needed to survive. ...
Unit 5
... 5. Describe the competitive exclusion principle, and explain how competitive exclusion may affect community structure. The competition exclusive principle stats that two species competing for the same limiting resources cannot coexist in the same place. The ecological niche is the sum of the total o ...
... 5. Describe the competitive exclusion principle, and explain how competitive exclusion may affect community structure. The competition exclusive principle stats that two species competing for the same limiting resources cannot coexist in the same place. The ecological niche is the sum of the total o ...
WHAT IS ECOLOGICAL INTEGRITY? ECOSYSTEM STRUCTURE
... atmosphere again (see diagram to the right) ...
... atmosphere again (see diagram to the right) ...
Nov 8 - University of San Diego
... Question – Can these results be extrapolated to other systems and time/space scales? Nutrient retention ...
... Question – Can these results be extrapolated to other systems and time/space scales? Nutrient retention ...
PorrasAlfaro-Question
... changing environmental conditions. Interactions occur and can be measured at different levels from molecular signaling (i.e. transcriptomics, proteomics, metabolomics) to larger scale processes in the environment (i.e. predation, competition, etc). Interactions are also regulated and influenced by d ...
... changing environmental conditions. Interactions occur and can be measured at different levels from molecular signaling (i.e. transcriptomics, proteomics, metabolomics) to larger scale processes in the environment (i.e. predation, competition, etc). Interactions are also regulated and influenced by d ...
Community Composition and Predation • Predators selecting
... – C – large predators targeting adults – R – moderate sized predators targeting juveniles – A – low overall predation on all size classes • RA = reproductive allotment • Bd. Interval – time between broods ...
... – C – large predators targeting adults – R – moderate sized predators targeting juveniles – A – low overall predation on all size classes • RA = reproductive allotment • Bd. Interval – time between broods ...
Darwin`s Idea of Common Descent
... • Developed a scientific hypothesis to explain how evolution occurs ...
... • Developed a scientific hypothesis to explain how evolution occurs ...
Ecology review assignment
... 1. The environment of an organism includes only nonliving physical factors. 2. A community is the biotic component of an ecosystem. 3. An ecosystem is always closed in terms of energy. 4. An ecosystem depends on continuous inputs of matter from outside the system. 5. Organisms that depend on differe ...
... 1. The environment of an organism includes only nonliving physical factors. 2. A community is the biotic component of an ecosystem. 3. An ecosystem is always closed in terms of energy. 4. An ecosystem depends on continuous inputs of matter from outside the system. 5. Organisms that depend on differe ...
Environmental Science Study Guide for Chapter 8 (Changing
... A population is a group of organisms of the same species that live in a specific geographical area at the same time and interbreed. Ex. Daisies in a field in Ohio breed with each other and not with a field in Georgia. 2. Describe the three properties of populations that we use to describe them and p ...
... A population is a group of organisms of the same species that live in a specific geographical area at the same time and interbreed. Ex. Daisies in a field in Ohio breed with each other and not with a field in Georgia. 2. Describe the three properties of populations that we use to describe them and p ...
Genetic, species, and ecosystem diversity
... variation determines the particular characteris tics of individuals within the species. In simple terms, genetic material dictates whether we have blue or brown eyes, blond or black hair, and are tall or short. It also determines whether an individual animal or plant has the ability to sur vive in ...
... variation determines the particular characteris tics of individuals within the species. In simple terms, genetic material dictates whether we have blue or brown eyes, blond or black hair, and are tall or short. It also determines whether an individual animal or plant has the ability to sur vive in ...
ecology - Newton County Schools
... neither harmed nor benefited. 2. Mutualism – Relationship in which both species benefit 3. Parasitism – Relationship in which one organism benefits and the other is harmed (It may harm the host, but usually does not kill it.) (ticks, leeches, tapeworms, hookworms) ...
... neither harmed nor benefited. 2. Mutualism – Relationship in which both species benefit 3. Parasitism – Relationship in which one organism benefits and the other is harmed (It may harm the host, but usually does not kill it.) (ticks, leeches, tapeworms, hookworms) ...
Objectives - John Burroughs School
... h. Keystone species (like a beaver or sea otter) 26. Discuss the competitive exclusion principle, using a real life example. 27. Distinguish between a fundamental niche and a realized niche. 28. Describe adaptations that predators and prey have evolved to maximize predation or avoidance of predation ...
... h. Keystone species (like a beaver or sea otter) 26. Discuss the competitive exclusion principle, using a real life example. 27. Distinguish between a fundamental niche and a realized niche. 28. Describe adaptations that predators and prey have evolved to maximize predation or avoidance of predation ...
Phylogenetic community ecology needs to take positive interactions
... to lead to ecologically similar species coexisting. Second, competitive interactions will tend to prevent species that are too similar to one another from coexisting.1 Over the past ten years, a new field of community ecology has emerged that investigates these phenomena by taking phylogenetic relat ...
... to lead to ecologically similar species coexisting. Second, competitive interactions will tend to prevent species that are too similar to one another from coexisting.1 Over the past ten years, a new field of community ecology has emerged that investigates these phenomena by taking phylogenetic relat ...
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.