![Lecture 6 and 7 California Floristic Province](http://s1.studyres.com/store/data/013214798_1-a52a61939fa84fbf00a2d781caa6604b-300x300.png)
Lecture 6 and 7 California Floristic Province
... Endemic Plants Plants Endemic • Plants with a restricted distribution in California ...
... Endemic Plants Plants Endemic • Plants with a restricted distribution in California ...
Chapter 7 Community Structure and Species Diversity Biological
... species to become more efficient in acquiring food or other resources This cannot go on for long periods of time When it gets intense the one of the competing species must migrate (if possible) to another area, shift its feeding habits or behavior through natural selection, suffer a sharp popula ...
... species to become more efficient in acquiring food or other resources This cannot go on for long periods of time When it gets intense the one of the competing species must migrate (if possible) to another area, shift its feeding habits or behavior through natural selection, suffer a sharp popula ...
Design of rain forest reserves
... landscape level has been poorly addessed so far. For example, power-law species-area curves have been widely used for scaling-up to the landscape level [34, 35], despite the lack of theoretical grounds for these extrapolation techniques. In fact, large-scale censuses of plants in several vegetation ...
... landscape level has been poorly addessed so far. For example, power-law species-area curves have been widely used for scaling-up to the landscape level [34, 35], despite the lack of theoretical grounds for these extrapolation techniques. In fact, large-scale censuses of plants in several vegetation ...
Two Decades of Homage to Santa Rosalia: Toward a General
... one trophic level to the next. He points out that body size and life history characteristics limit the trophic roles that certain species can play. He notes that the enormous diversity of terrestrial animals, which is much greater than that of aquatic ones, can probably be attributed not only to the ...
... one trophic level to the next. He points out that body size and life history characteristics limit the trophic roles that certain species can play. He notes that the enormous diversity of terrestrial animals, which is much greater than that of aquatic ones, can probably be attributed not only to the ...
Assessing the ecological significance of
... number of species, which in turn forces each species into having a narrow niche. Thus, ‘. . . tropical species have extremely narrow niches because so many of them are crammed into the forest!’ ( Turner, 1992). Drawing on the ‘stability-diversity’ and ‘energydiversity’ theories outlined above, one c ...
... number of species, which in turn forces each species into having a narrow niche. Thus, ‘. . . tropical species have extremely narrow niches because so many of them are crammed into the forest!’ ( Turner, 1992). Drawing on the ‘stability-diversity’ and ‘energydiversity’ theories outlined above, one c ...
Redman & Scriber - OECOLOGIA 125: (2) 218
... Next: begin building community ecology by looking at how pair-wise interactions with other species influence demographic rates (b&d): commensalism (+/0, skip this) interspecific competition (-/-) predation/parasitism/herbivory (+/-) mutualism (+/+) Then: consider existence and properties of multispe ...
... Next: begin building community ecology by looking at how pair-wise interactions with other species influence demographic rates (b&d): commensalism (+/0, skip this) interspecific competition (-/-) predation/parasitism/herbivory (+/-) mutualism (+/+) Then: consider existence and properties of multispe ...
In this Issue… - Ecological Society of Australia
... particular activity. If you as an individual or even as Urban Ecology research is all about studying an established group, would like to take over the the environments where most of the world’s human role of coordinating one of these activities, or even population lives. The ESA annual meetin ...
... particular activity. If you as an individual or even as Urban Ecology research is all about studying an established group, would like to take over the the environments where most of the world’s human role of coordinating one of these activities, or even population lives. The ESA annual meetin ...
Evolutionary genetics of invasive species
... upon which natural selection could act. In some cases, genetic drift alone has promoted successful invasions [3], but such cases probably represent exceptions rather than the rule. Broad tolerance and PLASTICITY are commonly invoked to explain invasion success [21–23], but often fail upon close exam ...
... upon which natural selection could act. In some cases, genetic drift alone has promoted successful invasions [3], but such cases probably represent exceptions rather than the rule. Broad tolerance and PLASTICITY are commonly invoked to explain invasion success [21–23], but often fail upon close exam ...
Lee, CE. 2002 - Carol Eunmi LEE
... upon which natural selection could act. In some cases, genetic drift alone has promoted successful invasions [3], but such cases probably represent exceptions rather than the rule. Broad tolerance and PLASTICITY are commonly invoked to explain invasion success [21–23], but often fail upon close exam ...
... upon which natural selection could act. In some cases, genetic drift alone has promoted successful invasions [3], but such cases probably represent exceptions rather than the rule. Broad tolerance and PLASTICITY are commonly invoked to explain invasion success [21–23], but often fail upon close exam ...
the paleoecological significance of opportunistic
... Stable faunas may be more difficult to invade because resources available to the community are being fully exploiteds. But invasions of stable faunas could take place because the factor allowing opportunistic species explosions may be unrelated to the resources which limit the resident faunas. For e ...
... Stable faunas may be more difficult to invade because resources available to the community are being fully exploiteds. But invasions of stable faunas could take place because the factor allowing opportunistic species explosions may be unrelated to the resources which limit the resident faunas. For e ...
do plankton and benthos really exist?
... The relative percentages of producers and consumers in marine seed banks roughly correspond to those in the water column. Activation of the ‘cyst’ of each primary consumer could be associated, or even correspond, with that of the primary producers it lives on. The relative quantities of resting prod ...
... The relative percentages of producers and consumers in marine seed banks roughly correspond to those in the water column. Activation of the ‘cyst’ of each primary consumer could be associated, or even correspond, with that of the primary producers it lives on. The relative quantities of resting prod ...
File - C. Shirley Science EJCHS
... coexist in exactly the same habitat. Otherwise, competition will occur. Indirect competition – Species compete even if they never come into direct contact with each other. (i.e. Insects feeding on same plant at different times.) Niche restriction occurs when each species uses less of the niche t ...
... coexist in exactly the same habitat. Otherwise, competition will occur. Indirect competition – Species compete even if they never come into direct contact with each other. (i.e. Insects feeding on same plant at different times.) Niche restriction occurs when each species uses less of the niche t ...
Ecological Succession
... disturbance such as a fire, tornado, etc...and the soil remains intact, the area begins to return to its natural community. Because these habitats previously supported life, secondary succession, unlike primary succession, begins on substrates that already bear soil. In addition, the soil contains a ...
... disturbance such as a fire, tornado, etc...and the soil remains intact, the area begins to return to its natural community. Because these habitats previously supported life, secondary succession, unlike primary succession, begins on substrates that already bear soil. In addition, the soil contains a ...
2303-8457-1-RV
... whereas species diversity is an index of diversity within an ecological community that incorporates both species richness which is the number of species in a given area or a given sample and the evenness of species' abundances (Spellerberg and Fedor, 2003). For many years ecologists have been using ...
... whereas species diversity is an index of diversity within an ecological community that incorporates both species richness which is the number of species in a given area or a given sample and the evenness of species' abundances (Spellerberg and Fedor, 2003). For many years ecologists have been using ...
ROLE OF KEYSTONE SPECIES IN AQUATIC ECOSYSTEM
... Estes 1988). Thus, o tte r re m o va l has com m u nity-le vel influences, by releasing from predation a primary c o n s u m e r th a t eats a plant th a t harbors o th e r organisms. As used by Paine and o th e r ecologists, the re are two hallmarks o f keystone species. First, their presence is c ...
... Estes 1988). Thus, o tte r re m o va l has com m u nity-le vel influences, by releasing from predation a primary c o n s u m e r th a t eats a plant th a t harbors o th e r organisms. As used by Paine and o th e r ecologists, the re are two hallmarks o f keystone species. First, their presence is c ...
2. Ecological Techniques
... A transect is a line, created with string or a tape, along which systematic sampling is performed Transects are particularly useful for sampling areas where there is a transition of species from one habitat to another as environmental conditions change Transect studies are used to investigate gradie ...
... A transect is a line, created with string or a tape, along which systematic sampling is performed Transects are particularly useful for sampling areas where there is a transition of species from one habitat to another as environmental conditions change Transect studies are used to investigate gradie ...
Variation Lesson
... of plastic knives and chopsticks will probably go extinct. While the tweezers and spoons, which are well adapted, and will out compete the others for now, will increase in population size. If time permits, a second game will be played on different colored substrate to illustrate how habitat is a lar ...
... of plastic knives and chopsticks will probably go extinct. While the tweezers and spoons, which are well adapted, and will out compete the others for now, will increase in population size. If time permits, a second game will be played on different colored substrate to illustrate how habitat is a lar ...
Objective: Explain how species in an ecosystem interact and link in
... 6. what is the most important abiotic feature in a swamp 7. list the community of organisms in a swamp ecosystem 8. what is a group of the same species of organism that shares the same environment. 9. what are organisms that are able to interbreed and produce fertile offspring? 10. what happens to t ...
... 6. what is the most important abiotic feature in a swamp 7. list the community of organisms in a swamp ecosystem 8. what is a group of the same species of organism that shares the same environment. 9. what are organisms that are able to interbreed and produce fertile offspring? 10. what happens to t ...
Ecology
... Ecology - deals with interactions, relationships, distributions & abundance Biotic and abiotic interactions in an ecosystem ...
... Ecology - deals with interactions, relationships, distributions & abundance Biotic and abiotic interactions in an ecosystem ...
Environmental Science Unit 2
... species adapts to its niche. •Describe convergent evolution and coevolution, and relate each to the concept of niche. ...
... species adapts to its niche. •Describe convergent evolution and coevolution, and relate each to the concept of niche. ...
Midterm Review
... important and dominant species, and we can and should manage the earth mostly for our own benefit. Other species and parts of nature are seen as having only instrumental value based on how useful they are to us. stewardship worldview Another largely human-centered environmental worldview is the stew ...
... important and dominant species, and we can and should manage the earth mostly for our own benefit. Other species and parts of nature are seen as having only instrumental value based on how useful they are to us. stewardship worldview Another largely human-centered environmental worldview is the stew ...
AIM: Populations and Ecosystems Ideas
... Organisms depend on other organisms for food and/or nutrients o Consumers depend on producers. For example, plants can provide shelter to animals and are also a source of food. o Many producers depend on consumers. For example, plants depend on decomposers to return minerals to the soil, and many ...
... Organisms depend on other organisms for food and/or nutrients o Consumers depend on producers. For example, plants can provide shelter to animals and are also a source of food. o Many producers depend on consumers. For example, plants depend on decomposers to return minerals to the soil, and many ...
Mutualism
... bees visit flowers, birds eat fruits, legumes form rootnodules and as Herodotus and Aristotle described, tick-birds supposedly pick parasites from the teeth of crocodiles. But on the other hand, scientists have come up with a series of reasons why they should be rare, if they exist at all. Reality a ...
... bees visit flowers, birds eat fruits, legumes form rootnodules and as Herodotus and Aristotle described, tick-birds supposedly pick parasites from the teeth of crocodiles. But on the other hand, scientists have come up with a series of reasons why they should be rare, if they exist at all. Reality a ...
Evolution and biodiversity - E-Learning/An
... • Reproductive isolation prevents populations belonging to different species from interbreeding, even if their ranges overlap. ...
... • Reproductive isolation prevents populations belonging to different species from interbreeding, even if their ranges overlap. ...
Ecological Resilience, Biodiversity, and Scale
... We emphasize the differences between these models before discussing their similarities. We then present our model of ‘‘cross-scale resilience,’’ which incorporates scale into an expanded model of the relationship between diversity and ecological function. ...
... We emphasize the differences between these models before discussing their similarities. We then present our model of ‘‘cross-scale resilience,’’ which incorporates scale into an expanded model of the relationship between diversity and ecological function. ...
Ecological fitting
![](https://en.wikipedia.org/wiki/Special:FilePath/Colorado_potato_beetle.jpg?width=300)
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.