PGS: 454 – 458
... C. Variation 1. Variation is the difference in traits present within a given species or population. 2. These options are essential to surviving in a changing environment. If there is no variation or “options”, then a species is limited to what is available; even if it is weak or unfavorable. 3. Vari ...
... C. Variation 1. Variation is the difference in traits present within a given species or population. 2. These options are essential to surviving in a changing environment. If there is no variation or “options”, then a species is limited to what is available; even if it is weak or unfavorable. 3. Vari ...
Future KBA Identification
... • Species Distribution Modeling: approximation of species ecological niche projected into geographic space – realized niche may be smaller than fundamental or “theoretical” niche ...
... • Species Distribution Modeling: approximation of species ecological niche projected into geographic space – realized niche may be smaller than fundamental or “theoretical” niche ...
File
... Invasive or introduced pest species- have caused many native animals and plants to become extinct across the world. Pollution- Contaminates the natural environment with harmful substances produced by human activity. Disease - The spread of disease may be both a natural and human factor behind ...
... Invasive or introduced pest species- have caused many native animals and plants to become extinct across the world. Pollution- Contaminates the natural environment with harmful substances produced by human activity. Disease - The spread of disease may be both a natural and human factor behind ...
CH 41 Reading Guide Communities
... 26. There are probably two key factors in latitudinal gradients. List and explain both here, and put a star next to the one that is probably the primary cause of the latitudinal difference in biodiversity. ...
... 26. There are probably two key factors in latitudinal gradients. List and explain both here, and put a star next to the one that is probably the primary cause of the latitudinal difference in biodiversity. ...
Community Interactions and Ecological Succession
... – 1. What kinds of factors (things) do you think influence an ecosystem? – 2. What kinds of relationships do you think exist between the plants and animals in an ecosystem? – 3. What might cause those relationships to change? ...
... – 1. What kinds of factors (things) do you think influence an ecosystem? – 2. What kinds of relationships do you think exist between the plants and animals in an ecosystem? – 3. What might cause those relationships to change? ...
SBI3U 1 of 1 Reproductive Isolating Mechanisms PREZYGOTIC
... Different species use different courtship and other mating clues to find and attract a mate Different species breed at different times of the year. ...
... Different species use different courtship and other mating clues to find and attract a mate Different species breed at different times of the year. ...
Biology Notes: Ecology
... 2. What are two reasons that populations will increase?__________________________ , ________________________ 3. What are two reasons that populations will decrease?_________________________ , ________________________ 4. What are factors that control population growth called? ______________________ ...
... 2. What are two reasons that populations will increase?__________________________ , ________________________ 3. What are two reasons that populations will decrease?_________________________ , ________________________ 4. What are factors that control population growth called? ______________________ ...
Slide 1
... • Organisms not only live together in ecological communities, but they also constantly interact with one another. These interactions, which include predation and competition, help shape the ecosystem in which they live. • 1. Based on your own experiences, define predation. Give one example of predat ...
... • Organisms not only live together in ecological communities, but they also constantly interact with one another. These interactions, which include predation and competition, help shape the ecosystem in which they live. • 1. Based on your own experiences, define predation. Give one example of predat ...
Limiting Factors- Anything that prevents a population sized form
... Exotic species – species that are not naturally native – brought in by humans Rabbits in Australia – see text book ...
... Exotic species – species that are not naturally native – brought in by humans Rabbits in Australia – see text book ...
Unit 7 Vocabulary
... of plants or animals remain stable and exist in balance with each other and their environment. • A climax community is the final stage of succession ...
... of plants or animals remain stable and exist in balance with each other and their environment. • A climax community is the final stage of succession ...
Introduction to Marine Ecology
... • Specialist – narrow range of conditions tolerated, resources used • Generalist – broad range of conditions tolerated, resources used – place where an organism is found (more general) ...
... • Specialist – narrow range of conditions tolerated, resources used • Generalist – broad range of conditions tolerated, resources used – place where an organism is found (more general) ...
Prairie dogs – an endangered keystone species?
... a single common mussel overgrows the rocky shores. Similar kinds of disproportionate impacts have been seen for other species, such as sea otters maintaining diversity of undersea kelp forests, fig wasps promoting production of a key food resource for tropical forest birds and mammals, and grizzly b ...
... a single common mussel overgrows the rocky shores. Similar kinds of disproportionate impacts have been seen for other species, such as sea otters maintaining diversity of undersea kelp forests, fig wasps promoting production of a key food resource for tropical forest birds and mammals, and grizzly b ...
Ecological Effects of Marine Debris
... Management Act • Endangered Species Act • Marine Mammal Protection Act • Coral Reef Conservation Act • International agreements ...
... Management Act • Endangered Species Act • Marine Mammal Protection Act • Coral Reef Conservation Act • International agreements ...
Competition Competitive exclusion principle
... • A single parasite rarely causes the death of its host. ...
... • A single parasite rarely causes the death of its host. ...
study guide 7
... 1. What term explains how populations change over time? Biological evolution 2. What is the term for a change in behavior or physical trait that helps an organism survive in its environment? adaptation 3. A group of organisms that can mate with each other and produce fertile offspring is called spec ...
... 1. What term explains how populations change over time? Biological evolution 2. What is the term for a change in behavior or physical trait that helps an organism survive in its environment? adaptation 3. A group of organisms that can mate with each other and produce fertile offspring is called spec ...
Biodiversity Exam
... threatened species. In many ecosystems, _________________________ lead to the destruction of native species because of____________________ of resources. _______________________ is the ...
... threatened species. In many ecosystems, _________________________ lead to the destruction of native species because of____________________ of resources. _______________________ is the ...
Endemism and dispers..
... Opportunity to watch the assemblage of a community from nothing • May 1884—one tiny spider, spinning a web • Fall 1884-a few shoots of grass, probably two species • 1886—15 species of grasses and shrubs • 1897—49 species of plants • 1928—nearly 300 species of plants • 1984-85—600 invertebrate speci ...
... Opportunity to watch the assemblage of a community from nothing • May 1884—one tiny spider, spinning a web • Fall 1884-a few shoots of grass, probably two species • 1886—15 species of grasses and shrubs • 1897—49 species of plants • 1928—nearly 300 species of plants • 1984-85—600 invertebrate speci ...
Unit 3 Study Guide – The Nature of Ecology
... 1. Compare the flow of energy and the flow of matter through an ecosystem. 2. Know how to calculate gross primary productivity and net primary productivity 3. List and distinguish between the different biotic and abiotic components of an ecosystem. 4. Distinguish between food chains and food webs an ...
... 1. Compare the flow of energy and the flow of matter through an ecosystem. 2. Know how to calculate gross primary productivity and net primary productivity 3. List and distinguish between the different biotic and abiotic components of an ecosystem. 4. Distinguish between food chains and food webs an ...
ch 7 vocabulary questions community ecology1
... 10. How does resource partitioning allow species to avoid overlaps of their fundamental niches? 11. Describe the predator-prey relationship, and give two examples of this type of species interaction. 12. List six ways used by prey to avoid their predators, and give an example of each type. 13. What ...
... 10. How does resource partitioning allow species to avoid overlaps of their fundamental niches? 11. Describe the predator-prey relationship, and give two examples of this type of species interaction. 12. List six ways used by prey to avoid their predators, and give an example of each type. 13. What ...
Chapter 4 Section 2
... usually lives on or in another organism. Parasites do not usually kill their prey (host) because they depend on it for food and a place to live. ...
... usually lives on or in another organism. Parasites do not usually kill their prey (host) because they depend on it for food and a place to live. ...
5.3 Shaping Communities
... a. one species wins and one loses 1. loser is eliminated from the habitat b. competitors survive together splitting resources ...
... a. one species wins and one loses 1. loser is eliminated from the habitat b. competitors survive together splitting resources ...
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.