Community Ecology
... The objective is to find a measure that assesses both species richness (the number of species comprising the community) and relative abundance (the number of individuals in each of those species). For practical reasons, the most common measure is species richness. Counting the number of different sp ...
... The objective is to find a measure that assesses both species richness (the number of species comprising the community) and relative abundance (the number of individuals in each of those species). For practical reasons, the most common measure is species richness. Counting the number of different sp ...
Complexity and Stability - Powerpoint for Nov. 2.
... 1) Non-interactors - species does not affect population of those species with which it interacts 2) weak interactors - species only influences those species with which it interacts directly - effects may be large 3) strong interactors - species that directly and indirectly effects other species - th ...
... 1) Non-interactors - species does not affect population of those species with which it interacts 2) weak interactors - species only influences those species with which it interacts directly - effects may be large 3) strong interactors - species that directly and indirectly effects other species - th ...
Unit 7: Ecology Name: Date: Aim #51 Community Interactions: How
... 8) If the grass that the zebras eat decreases in population, what will happen to the zebra population? Will it increase or decrease? ________________________________________ 9) What will happen to the lion population? Will it increase or decrease? _________________________________ 10) The zebra popu ...
... 8) If the grass that the zebras eat decreases in population, what will happen to the zebra population? Will it increase or decrease? ________________________________________ 9) What will happen to the lion population? Will it increase or decrease? _________________________________ 10) The zebra popu ...
Food Webs - web.biosci.utexas.edu
... One or a few common species with many many rare species Important concept: Rare species can be important in communities: many weak interactions can lend stability Important concept: Some species there by accident ...
... One or a few common species with many many rare species Important concept: Rare species can be important in communities: many weak interactions can lend stability Important concept: Some species there by accident ...
Problem-Based Learning in Ecological Economics
... Today’s problems come from yesterday’s “solutions”. The harder you push, the harder a system pushes back. Behavior grows better before it grows worse. The easy way out usually leads back in. The cure can be worse than the disease. Faster is slower. Cause and effect are not closely related in time an ...
... Today’s problems come from yesterday’s “solutions”. The harder you push, the harder a system pushes back. Behavior grows better before it grows worse. The easy way out usually leads back in. The cure can be worse than the disease. Faster is slower. Cause and effect are not closely related in time an ...
Lesson 1 what is biodiversity
... ecosystem. • Structural - tree and an ant • Functional – bacteria that cause decay and those that digest food ...
... ecosystem. • Structural - tree and an ant • Functional – bacteria that cause decay and those that digest food ...
Ecology - My eCoach
... other organisms until a stable group of species persists within the area. This process is called ____________ ...
... other organisms until a stable group of species persists within the area. This process is called ____________ ...
Science 7 Interactions within Ecosystems Assessment How could
... Hint: Include topics such as: ecological pyramid, pyramid of numbers, pyramid of biomass decomposers Photosynthesis cellular respiration removal of one or more living organisms from a specific ecosystem new technologies (fertilizer) (IE 7.3) ...
... Hint: Include topics such as: ecological pyramid, pyramid of numbers, pyramid of biomass decomposers Photosynthesis cellular respiration removal of one or more living organisms from a specific ecosystem new technologies (fertilizer) (IE 7.3) ...
Ecology Unit readings
... Energy is transferred from one level of feeding to another level Water, carbon and other compounds/elements are cycled through the environment An energy pyramid shows the distribution of energy among trophic levels Habitats and niches differ Available resources are what gives structure to ...
... Energy is transferred from one level of feeding to another level Water, carbon and other compounds/elements are cycled through the environment An energy pyramid shows the distribution of energy among trophic levels Habitats and niches differ Available resources are what gives structure to ...
Distribution of Species
... Niche variables alone are not sufficient to explain patterns of distribution and abundance. 1. Too simplistic to assume that conditions are equally favorable for a species at all locations where it occurs. Some locations are undoubtedly more favorable than others. In these locations, birth rates w ...
... Niche variables alone are not sufficient to explain patterns of distribution and abundance. 1. Too simplistic to assume that conditions are equally favorable for a species at all locations where it occurs. Some locations are undoubtedly more favorable than others. In these locations, birth rates w ...
Pisaster Disaster PSI AP Biology
... 2. Food webs are organized ways to illustrate the different food chains in an ecosystem. Each level of a food web is called a trophic level. The transfer of energy in an ecosystem flows upwards from one trophic level to another. Unfortunately, not all of the energy is transferred between trophic lev ...
... 2. Food webs are organized ways to illustrate the different food chains in an ecosystem. Each level of a food web is called a trophic level. The transfer of energy in an ecosystem flows upwards from one trophic level to another. Unfortunately, not all of the energy is transferred between trophic lev ...
File
... Change over Time and how Population Changes Happen State Standard: SPI 5.3- Analyze data on levels of variation ...
... Change over Time and how Population Changes Happen State Standard: SPI 5.3- Analyze data on levels of variation ...
Ecology - Citrus College
... • Populations of organisms living together in the same environment. • Four properties: 1. Diversity 2. Prevalent form of vegetation 3. Stability (resist change) 4. Trophic structure (feeding structure) ...
... • Populations of organisms living together in the same environment. • Four properties: 1. Diversity 2. Prevalent form of vegetation 3. Stability (resist change) 4. Trophic structure (feeding structure) ...
Conclude Conditions and Resources - Powerpoint for Sept. 23.
... • Resources are parts of the physical environment that are consumed (used up) by living organisms – There are many different resources – • For plants – solar radiation, soil nutrients, water, carbon dioxide, space • For animals – primarily food sources, oxygen, space • For decomposers – a supply of ...
... • Resources are parts of the physical environment that are consumed (used up) by living organisms – There are many different resources – • For plants – solar radiation, soil nutrients, water, carbon dioxide, space • For animals – primarily food sources, oxygen, space • For decomposers – a supply of ...
Chapter 7 Review
... (2) ensures a large amount of identical genetic material (3) develops relationships between organisms that are always positive over long periods of time (4) increases the chance that some organisms will survive a major change in the environment 13. In 1960, an invasive species of fish was introduced ...
... (2) ensures a large amount of identical genetic material (3) develops relationships between organisms that are always positive over long periods of time (4) increases the chance that some organisms will survive a major change in the environment 13. In 1960, an invasive species of fish was introduced ...
Ecology
... • striking differences in biota from one island to the next that could not be explained by differences in geology or climate - the islands were identical ...
... • striking differences in biota from one island to the next that could not be explained by differences in geology or climate - the islands were identical ...
Ecology Unit Book HW (2016)
... Describe connections among mutations, adaptations, differential reproduction, and biological evolution. Describe and provide an example of directional, stabilizing and disruptive selection. List four limits of adaptation to change. Summarize three common misconceptions about evolution. Provide an ex ...
... Describe connections among mutations, adaptations, differential reproduction, and biological evolution. Describe and provide an example of directional, stabilizing and disruptive selection. List four limits of adaptation to change. Summarize three common misconceptions about evolution. Provide an ex ...
Animal Symbioses and Interactions
... • An insect that lays eggs on a host • Larvae hatch and feed off of the host • Host may eventually die, but not until larvae has obtained all its nutrients ...
... • An insect that lays eggs on a host • Larvae hatch and feed off of the host • Host may eventually die, but not until larvae has obtained all its nutrients ...
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.