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... Plankton: organisms that drift in the water column because they are incapable of swimming against a current (including algae, bacteria, and many animals such as crustaceans and jellyfish). Radiation: the diversification by evolution of species from a common ancestor. For example, ‘the radiation of ...
... Plankton: organisms that drift in the water column because they are incapable of swimming against a current (including algae, bacteria, and many animals such as crustaceans and jellyfish). Radiation: the diversification by evolution of species from a common ancestor. For example, ‘the radiation of ...
Chapter 22 - Darwinian Evolution
... • Example: desert foxes have big ears, arctic foxes have small ears • Natural selection = process in which individuals that have heritable characteristics survive & reproduce at a higher rate than others individuals • Over time, NS can increase the match between organisms & environment ...
... • Example: desert foxes have big ears, arctic foxes have small ears • Natural selection = process in which individuals that have heritable characteristics survive & reproduce at a higher rate than others individuals • Over time, NS can increase the match between organisms & environment ...
Charles Darwin`s Theory of Evolution as a Mechanistic Process
... Compared processes in nature with artificial selection ...
... Compared processes in nature with artificial selection ...
Chapter 19
... Resource partitioning • Competition between two species is rare in nature because of 2 reasons: – One would outcompete OR – A new niche would be formed by dividing up resources – resource partitioning • Sympatric – closely related species that divide up resources – must live close to each other • A ...
... Resource partitioning • Competition between two species is rare in nature because of 2 reasons: – One would outcompete OR – A new niche would be formed by dividing up resources – resource partitioning • Sympatric – closely related species that divide up resources – must live close to each other • A ...
Habitat & Niches
... As general rule, diversity decreases and abundance within species increases when moving from the equator to the poles. ...
... As general rule, diversity decreases and abundance within species increases when moving from the equator to the poles. ...
in-class activity 3 – responses to climate change
... Topic Sentence: Responses to climate change (particularly temperature increases) are evident at all levels of biological and ecological levels of organization. Development of that topic sentence: An increase in temperature affects enzymatic rates and thus has effects at the molecular, physiological, ...
... Topic Sentence: Responses to climate change (particularly temperature increases) are evident at all levels of biological and ecological levels of organization. Development of that topic sentence: An increase in temperature affects enzymatic rates and thus has effects at the molecular, physiological, ...
ap ecology - BiologyWithRizzo
... •Territorial species carry out interference competition by preventing others of the same species from obtaining resources in a given area. ...
... •Territorial species carry out interference competition by preventing others of the same species from obtaining resources in a given area. ...
Evolution occurs in patterns - rosedale11universitybiology
... When the predator runs faster so do does the prey or both species become extinct. Many hosts and parasites coevolve. Many plants can only reproduce if their flowers match a specific pollinator. ...
... When the predator runs faster so do does the prey or both species become extinct. Many hosts and parasites coevolve. Many plants can only reproduce if their flowers match a specific pollinator. ...
Chapters 4 and 5 Review
... c. will take place unless the species divide resources. d. will cause both species to become extinct. 53. An organism almost never occupies itrs entire fundamental niche because of a. competition b. weather changes c. lack of resources d. parasitism ...
... c. will take place unless the species divide resources. d. will cause both species to become extinct. 53. An organism almost never occupies itrs entire fundamental niche because of a. competition b. weather changes c. lack of resources d. parasitism ...
5 Populations and Limits on Populations
... http://www.mnn.com/earth-matters/animals/photos/12-animals-with-the-longest-gestation-period/elephants ...
... http://www.mnn.com/earth-matters/animals/photos/12-animals-with-the-longest-gestation-period/elephants ...
Abiotic=non-living things. Eg: Sunlight, minerals, air, soil, water, etc.
... • The study of a community includes all individuals of all interacting populations in a specific area. • The study of an ecosystem includes all abiotic and biotic elements and their interactions. • Usually communities change over time because the abiotic elements change over a time period. Changing ...
... • The study of a community includes all individuals of all interacting populations in a specific area. • The study of an ecosystem includes all abiotic and biotic elements and their interactions. • Usually communities change over time because the abiotic elements change over a time period. Changing ...
Nomination to list or delist a key threatening processes under the
... i.e., excludes unsuitable and unoccupied habitat), or the area of suitable habitat (the area within the total range that includes occupied and unoccupied suitable habitat, but excludes unsuitable habitat). The scale at which a geographic distribution is estimated should be appropriate to the biology ...
... i.e., excludes unsuitable and unoccupied habitat), or the area of suitable habitat (the area within the total range that includes occupied and unoccupied suitable habitat, but excludes unsuitable habitat). The scale at which a geographic distribution is estimated should be appropriate to the biology ...
How do geological processes and climate change affect evolution?
... How do new species evolve • It is by NATURAL SELECTION and also called as SPECIATION. • SPECIATION- it is a process where a specie splits into 2 or more different kinds of species. ...
... How do new species evolve • It is by NATURAL SELECTION and also called as SPECIATION. • SPECIATION- it is a process where a specie splits into 2 or more different kinds of species. ...
Plants Of Powderhorn And The Vegetation Of The Calumet Region
... Blitz compared to SAAD • 195 plant species on both lists • 222 species on the BioBlitz list not seen by me (+9 aquatic species which I did not inventory). • 126 species seen by me not on the BioBlitz list, including: ...
... Blitz compared to SAAD • 195 plant species on both lists • 222 species on the BioBlitz list not seen by me (+9 aquatic species which I did not inventory). • 126 species seen by me not on the BioBlitz list, including: ...
Ch 54 notes with additions from 55-56
... • A community with an even species abundance is more diverse than one that has a few abundant species and the others are rare. • Keystone species hold such an important role in their niche that they have control over the structure of the community. • Categories of Keystone Species Keystone Species A ...
... • A community with an even species abundance is more diverse than one that has a few abundant species and the others are rare. • Keystone species hold such an important role in their niche that they have control over the structure of the community. • Categories of Keystone Species Keystone Species A ...
Species Richness: The number of species present in a community
... • Abundant acorns attract tick-bearing deer. Ticks’ offspring feed on mice • Mice carry Lyme disease – causing bacterium –which can be transmitted to humans being bitten by an infected tick/ ...
... • Abundant acorns attract tick-bearing deer. Ticks’ offspring feed on mice • Mice carry Lyme disease – causing bacterium –which can be transmitted to humans being bitten by an infected tick/ ...
Ecology
... – Density-Dependent Limiting Factors: population size matters – i.e. Predation, disease, competition, territoriality, waste ...
... – Density-Dependent Limiting Factors: population size matters – i.e. Predation, disease, competition, territoriality, waste ...
Limits to Growth - BHSBiologyClass
... A limiting nutrient is an example of a more general ecological concept called a limiting factor = Density-Dependent Factors Density-dependent limiting factor = Include: ...
... A limiting nutrient is an example of a more general ecological concept called a limiting factor = Density-Dependent Factors Density-dependent limiting factor = Include: ...
Community Ecology Chapter 54
... Each food chain in a food web is usually only a few links long (mostly not more than 6). Dominant species are those that are most abundant or have the highest biomass Keystone species exert strong control on a community by their ecological roles, or niches In contrast to dominant species, they are n ...
... Each food chain in a food web is usually only a few links long (mostly not more than 6). Dominant species are those that are most abundant or have the highest biomass Keystone species exert strong control on a community by their ecological roles, or niches In contrast to dominant species, they are n ...
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.