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Detective Work in the West Indies: Integrating Historical
... with an abundance of resources. Speciation occurs, leading to a number of co-occurring species that initially use the same resources. As the species’ populations increase in abundance, resource levels fall and interspecific competition occurs for the now-scarce resources. As a result, species alter ...
... with an abundance of resources. Speciation occurs, leading to a number of co-occurring species that initially use the same resources. As the species’ populations increase in abundance, resource levels fall and interspecific competition occurs for the now-scarce resources. As a result, species alter ...
Ecological Succession
... the climax community. Then, ecological succession begins again and after many years, a new climax community will develop. ...
... the climax community. Then, ecological succession begins again and after many years, a new climax community will develop. ...
Sequentially assembled food webs and extremum principles in
... Two tests are carried out on the model. First, some spot checks are made to test whether communities after some species turnover (succession) are statistically different from communities with the same number of species drawn simultaneously at random from the species pool. Secondly, time-series of co ...
... Two tests are carried out on the model. First, some spot checks are made to test whether communities after some species turnover (succession) are statistically different from communities with the same number of species drawn simultaneously at random from the species pool. Secondly, time-series of co ...
Determinants of Distribution
... environmental conditions in which a taxon survives and reproduces in nature, including biotic factors (competition, predation, mutualism, etc). In a range isolated from the Andes: - low elevation species present, high elevation species absent - low elevation species expands its range upward Ecologic ...
... environmental conditions in which a taxon survives and reproduces in nature, including biotic factors (competition, predation, mutualism, etc). In a range isolated from the Andes: - low elevation species present, high elevation species absent - low elevation species expands its range upward Ecologic ...
Chapter 50: Study Questions
... 2. Explain the three main patterns of dispersion and why they occur. Give examples. 3. How is an age structure generated? Describe in terms of birthrate (fecundity), death rate and generation time. 4. What is a survivorship curve? What are the three basic patterns? Why do they occur in reference to ...
... 2. Explain the three main patterns of dispersion and why they occur. Give examples. 3. How is an age structure generated? Describe in terms of birthrate (fecundity), death rate and generation time. 4. What is a survivorship curve? What are the three basic patterns? Why do they occur in reference to ...
Royal Commission study on artificial light in the environment
... Much street lighting currently uses high or low pressure sodium light. Although such light is generally less attractive to insects than previous types, observations suggest that normal flight behaviour is completely inhibited in the general area of such lights, in effect sterilising large areas for ...
... Much street lighting currently uses high or low pressure sodium light. Although such light is generally less attractive to insects than previous types, observations suggest that normal flight behaviour is completely inhibited in the general area of such lights, in effect sterilising large areas for ...
Changing Populations C21L2
... measured by the population’s birthrate and death rate. A population’s birthrate is the number of offspring produced over a given period of time. The death rate is the number of individuals that die over the same period of time. ...
... measured by the population’s birthrate and death rate. A population’s birthrate is the number of offspring produced over a given period of time. The death rate is the number of individuals that die over the same period of time. ...
a full - British Ecological Society
... 4. Thus, theory says that species interactions are a necessary but not sufficient condition for local saturation in ecological time. 5. We then argue that unsaturated (Type I) assemblages are likely to be ubiquitous in nature and that even saturated (Type II) assemblages may not show hard limits to ...
... 4. Thus, theory says that species interactions are a necessary but not sufficient condition for local saturation in ecological time. 5. We then argue that unsaturated (Type I) assemblages are likely to be ubiquitous in nature and that even saturated (Type II) assemblages may not show hard limits to ...
Key Native Ecosystems added to inventory in March 2017
... The forest type is semi-coastal tawa/kohekohe/rewarewa forest. Other canopy trees include titoki, pukatea and puriri. A number of other plant species are also present in the sub canopy including karaka, mamaku, kawakawa, pigeonwood, various coprosmas, silver fern/ponga and mahoe. Fauna Native birdli ...
... The forest type is semi-coastal tawa/kohekohe/rewarewa forest. Other canopy trees include titoki, pukatea and puriri. A number of other plant species are also present in the sub canopy including karaka, mamaku, kawakawa, pigeonwood, various coprosmas, silver fern/ponga and mahoe. Fauna Native birdli ...
Behavioral Diversity (Ethodiversity): A Neglected Level in the Study
... There is still little information about ethodiversity available to characterize patterns. However, some predictable patterns are expected. One is related to the latitudinal gradient in biodiversity (Gaston, 2000). Ethodiversity is expected to be related to biological complexity, and to be maximum in ...
... There is still little information about ethodiversity available to characterize patterns. However, some predictable patterns are expected. One is related to the latitudinal gradient in biodiversity (Gaston, 2000). Ethodiversity is expected to be related to biological complexity, and to be maximum in ...
Beyond species loss: The extinction of ecological
... cause pairwise competitive interactions among all or most plant species to become manifest (Olff & Ritchie 1998). In this new situation, the number of competitive interactions in the herbivore-less community increases with respect to the original community. In a second, non-mutually exclusive mechani ...
... cause pairwise competitive interactions among all or most plant species to become manifest (Olff & Ritchie 1998). In this new situation, the number of competitive interactions in the herbivore-less community increases with respect to the original community. In a second, non-mutually exclusive mechani ...
Beyond species loss: the extinction of ecological interactions in a
... cause pairwise competitive interactions among all or most plant species to become manifest (Olff & Ritchie 1998). In this new situation, the number of competitive interactions in the herbivore-less community increases with respect to the original community. In a second, non-mutually exclusive mechani ...
... cause pairwise competitive interactions among all or most plant species to become manifest (Olff & Ritchie 1998). In this new situation, the number of competitive interactions in the herbivore-less community increases with respect to the original community. In a second, non-mutually exclusive mechani ...
Historical and ecological dimensions of global patterns
... substantial portion of variation in species richness over many scales of analysis, although which environmental variables are the most important may vary with the dimension of the study (Rahbek & Graves 2001; Willis & Whittaker 2002). However, the diversity-environment correlation can also result fr ...
... substantial portion of variation in species richness over many scales of analysis, although which environmental variables are the most important may vary with the dimension of the study (Rahbek & Graves 2001; Willis & Whittaker 2002). However, the diversity-environment correlation can also result fr ...
Critical Review - University of South Florida
... stability–diversity relationships, and food-web structure, has enhanced the ability to predict effects of contaminants in aquatic and terrestrial ecosystems. If communities are defined by the strength of interactions among species [4], it follows that ecotoxicologists should account for these intera ...
... stability–diversity relationships, and food-web structure, has enhanced the ability to predict effects of contaminants in aquatic and terrestrial ecosystems. If communities are defined by the strength of interactions among species [4], it follows that ecotoxicologists should account for these intera ...
Review - TeacherWeb
... The biosphere is divided into regions called biomes that exhibit common environmental characteristics. Each biome is occupied by unique communities or ecosystems of plants and animals that share adaptations which promote survival within the biome. The following is a list of the major biomes. Summa ...
... The biosphere is divided into regions called biomes that exhibit common environmental characteristics. Each biome is occupied by unique communities or ecosystems of plants and animals that share adaptations which promote survival within the biome. The following is a list of the major biomes. Summa ...
UNIVERSITY HIGH SCHOOL
... It is our goal that the AP Biology course offered to students at University High School provide students with the conceptual framework, factual knowledge, and analytical skills necessary to deal critically with the rapidly changing science of biology. We are confident that AP Biology can help you gr ...
... It is our goal that the AP Biology course offered to students at University High School provide students with the conceptual framework, factual knowledge, and analytical skills necessary to deal critically with the rapidly changing science of biology. We are confident that AP Biology can help you gr ...
REVIEW The importance of evolutionary history in studies of plant
... were obtained from seedlings of one savanna tree species (Enterolobium gummiferum (Mart.) MacBride) and one forest tree species (Ouratea castaneaefolia (St. Hil.) Engl.) grown under full sun for 150 days. Contrary to the hypotheses, the savanna species had higher LAR, SLA, and seedling height than d ...
... were obtained from seedlings of one savanna tree species (Enterolobium gummiferum (Mart.) MacBride) and one forest tree species (Ouratea castaneaefolia (St. Hil.) Engl.) grown under full sun for 150 days. Contrary to the hypotheses, the savanna species had higher LAR, SLA, and seedling height than d ...
An Overview of Organismal Interactions in Ecosystems in
... nized by a fungus which breaks down toxins (as with Coptotermes on Bald Cypress), before the protozoa can persist in the paunch of the termite ( see also Martin, 1979; Waller and La Fage, 1987), and the bacteria are methanogens and nitrogen fixers essential to the protozoa (Breznak, 1975). Indeed, t ...
... nized by a fungus which breaks down toxins (as with Coptotermes on Bald Cypress), before the protozoa can persist in the paunch of the termite ( see also Martin, 1979; Waller and La Fage, 1987), and the bacteria are methanogens and nitrogen fixers essential to the protozoa (Breznak, 1975). Indeed, t ...
Invasive Species
... of physiological tolerance and plasticity or undergo genetic differentiation, or both, to achieve required levels of fitness. Many invasive species have greater phenotypic plasticity than co-occurring native species. Post-introduction evolution can, however, be rapid enough to be relevant over the tim ...
... of physiological tolerance and plasticity or undergo genetic differentiation, or both, to achieve required levels of fitness. Many invasive species have greater phenotypic plasticity than co-occurring native species. Post-introduction evolution can, however, be rapid enough to be relevant over the tim ...
Competition Powerpoint
... Consequently, managing an ecosystem for high biodiversity may require periodic or spatially-patchy disturbances ...
... Consequently, managing an ecosystem for high biodiversity may require periodic or spatially-patchy disturbances ...
Ecology Unit - OpenWetWare
... pay attention to the sentence, especially the leading verb. We expect that you will be able to do what the objective sentence says, incorporating the key concepts. The key concepts are concepts, not vocabulary words. To understand the concept will require more elaboration. Following our learning obj ...
... pay attention to the sentence, especially the leading verb. We expect that you will be able to do what the objective sentence says, incorporating the key concepts. The key concepts are concepts, not vocabulary words. To understand the concept will require more elaboration. Following our learning obj ...
FISH 312: Fisheries Ecology
... Some forms of mortality do not vary with density but result from physical factors that operate without regard to density. However, even some of these factors (freezing, flooding, high temperatures) may interact with density. For example, at high densities, some organisms may be forced to breed in ma ...
... Some forms of mortality do not vary with density but result from physical factors that operate without regard to density. However, even some of these factors (freezing, flooding, high temperatures) may interact with density. For example, at high densities, some organisms may be forced to breed in ma ...
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.