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Biotic Interactions in the Tropics - Assets
... It is well known that tropical forests and savannas house a significant proportion of global biodiversity. However, an appreciation of the diversity of interactions among organisms in tropical ecosystems is only just emerging. Interactions among species are important because they affect the growth, s ...
... It is well known that tropical forests and savannas house a significant proportion of global biodiversity. However, an appreciation of the diversity of interactions among organisms in tropical ecosystems is only just emerging. Interactions among species are important because they affect the growth, s ...
Ch.14-Lesson-2-WSs-f..
... a. Limiting factors limit the growth of a population. One factor is the lack of sufficient resources such as water; some individuals cannot survive under these circumstances. b. Factors such as predation, competition, and disease are examples of limiting factors. 5. Biotic potential is the potential ...
... a. Limiting factors limit the growth of a population. One factor is the lack of sufficient resources such as water; some individuals cannot survive under these circumstances. b. Factors such as predation, competition, and disease are examples of limiting factors. 5. Biotic potential is the potential ...
Overview of Ecological Responses to the Eruption of Mount St. Helens
... Effects of the 1980 eruption were strongly influenced by timing of the event at scales ranging from the time of day to the successional status of the ecological systems affected by the disturbance. The 8:32 a.m. beginning of the eruption, for example, occurred when many nocturnal mammals, such as mic ...
... Effects of the 1980 eruption were strongly influenced by timing of the event at scales ranging from the time of day to the successional status of the ecological systems affected by the disturbance. The 8:32 a.m. beginning of the eruption, for example, occurred when many nocturnal mammals, such as mic ...
Pennings Functional groups revisited
... proposed that algae fall into seven functional groups that were increasingly harder for herbivores to graze. Argued for a match between algal group and herbivore feeding mode leading to ...
... proposed that algae fall into seven functional groups that were increasingly harder for herbivores to graze. Argued for a match between algal group and herbivore feeding mode leading to ...
On the organization of ecosystems Veldhuis, Michiel
... are expected to be thermodynamically favored over alternative configurations. As natural selection will favor traits that lead to benefits in the performance of individuals (e.g. growth, reproduction, survival), traits are expected to evolve where species promote their own conditions through other s ...
... are expected to be thermodynamically favored over alternative configurations. As natural selection will favor traits that lead to benefits in the performance of individuals (e.g. growth, reproduction, survival), traits are expected to evolve where species promote their own conditions through other s ...
Special Feature
... genetic network that delimits a population as a collection of individuals of the same species united by a common gene pool. Rapidly evolving genomic methods, such as microarray technology, may soon make it possible to employ this definition of a community using the genetic bases of interactions. Com ...
... genetic network that delimits a population as a collection of individuals of the same species united by a common gene pool. Rapidly evolving genomic methods, such as microarray technology, may soon make it possible to employ this definition of a community using the genetic bases of interactions. Com ...
Unit 9 Ecology Chp 54 Community Ecology Notes
... o The flavors of cinnamon, cloves, and peppermint are distasteful to many herbivores. o Some plants produce chemicals that cause abnormal development in insect herbivores. ...
... o The flavors of cinnamon, cloves, and peppermint are distasteful to many herbivores. o Some plants produce chemicals that cause abnormal development in insect herbivores. ...
Ecology Unit HW
... 8. Distinguish between r-selected and K-selected populations 9. Explain how a stressful environment may alter the standard R-selection and K-selection characteristics 10. Compare and contrast semelparity and iteroparity – give advantages of each as they apply to an example organism – focus on the ad ...
... 8. Distinguish between r-selected and K-selected populations 9. Explain how a stressful environment may alter the standard R-selection and K-selection characteristics 10. Compare and contrast semelparity and iteroparity – give advantages of each as they apply to an example organism – focus on the ad ...
abiotic constraints eclipse biotic resistance in
... mechanisms determining community invasibility. Successful invaders must tolerate abiotic conditions and overcome resistance from native species in invaded habitats. Biotic resistance to invasions may reflect the diversity, abundance, or identity of species in a community. Few studies, however, have e ...
... mechanisms determining community invasibility. Successful invaders must tolerate abiotic conditions and overcome resistance from native species in invaded habitats. Biotic resistance to invasions may reflect the diversity, abundance, or identity of species in a community. Few studies, however, have e ...
Interspecific Dominance Via Vocal Interactions Mediates Altitudinal
... 1974) to a network of potential competitors over long distances (Bradbury and Vehrencamp 1998). While traitmediated indirect interactions are known to strongly influence spatial and community dynamics in other contexts (e.g., predator-prey systems; Bolker et al. 2003; Werner and Peacor 2003), the ro ...
... 1974) to a network of potential competitors over long distances (Bradbury and Vehrencamp 1998). While traitmediated indirect interactions are known to strongly influence spatial and community dynamics in other contexts (e.g., predator-prey systems; Bolker et al. 2003; Werner and Peacor 2003), the ro ...
Ecological and evolutionary consequences of biotic homogenization
... functional homogenization with subsequent changes in overall community function and a reduction in ecosystem resilience (Box 2). Modifications to within- and betweencommunity trait compositions will probably impinge upon community and ecosystem function, and resistance to environmental change. A dec ...
... functional homogenization with subsequent changes in overall community function and a reduction in ecosystem resilience (Box 2). Modifications to within- and betweencommunity trait compositions will probably impinge upon community and ecosystem function, and resistance to environmental change. A dec ...
- Science
... One of the biological interactions that can limit population growth; occurs when two species vie with each other for the same resource ...
... One of the biological interactions that can limit population growth; occurs when two species vie with each other for the same resource ...
Presentation Title
... “We might feel confident of broad-scale future environmental changes (such as global mean temperature increases), but we cannot routinely predict even the direction of change at local and regional scales (such as increasing or decreasing precipitation).” Millar et al. (2007) ...
... “We might feel confident of broad-scale future environmental changes (such as global mean temperature increases), but we cannot routinely predict even the direction of change at local and regional scales (such as increasing or decreasing precipitation).” Millar et al. (2007) ...
PPT for Aug 29 HW
... Some Terms and Definitions • Ecosystems: A grouping of plants, animals, and microbes occupying an explicit unit of space and interacting with each other and their environment. • Ecotone: Transitional region between different ecosystems. ...
... Some Terms and Definitions • Ecosystems: A grouping of plants, animals, and microbes occupying an explicit unit of space and interacting with each other and their environment. • Ecotone: Transitional region between different ecosystems. ...
SCIENCE FOCUS 9 UNIT 1
... 1. Like all living things, whooping cranes ________________________________________ (2) 2. Humans also interact with the environment. Unfortunately, ________________________ ___________________________________________________________________________ (2) 3. Ecologists study and explore ______________ ...
... 1. Like all living things, whooping cranes ________________________________________ (2) 2. Humans also interact with the environment. Unfortunately, ________________________ ___________________________________________________________________________ (2) 3. Ecologists study and explore ______________ ...
SCIENCE FOCUS 9 UNIT 1
... 1. Like all living things, whooping cranes ________________________________________ (2) 2. Humans also interact with the environment. Unfortunately, ________________________ ___________________________________________________________________________ (2) 3. Ecologists study and explore ______________ ...
... 1. Like all living things, whooping cranes ________________________________________ (2) 2. Humans also interact with the environment. Unfortunately, ________________________ ___________________________________________________________________________ (2) 3. Ecologists study and explore ______________ ...
Biodiversity and Climate Change: Integrating Evolutionary and
... salmon after its introduction to New Zealand, resulting in a doubling of its vital rates compared to nonlocal genotypes; and this genetic divergence for vital rates far exceeded that predicted on the basis of phenotypic traits thought to be involved in local adaptation (Kinnison et al. 2008). Unders ...
... salmon after its introduction to New Zealand, resulting in a doubling of its vital rates compared to nonlocal genotypes; and this genetic divergence for vital rates far exceeded that predicted on the basis of phenotypic traits thought to be involved in local adaptation (Kinnison et al. 2008). Unders ...
a local ecosystem
... learn to recognise and explain. Students are able to draw on existing knowledge of their own local area and expand on their understanding of biological concepts that can be identified through careful analysis of the biotic and abiotic factors operating. While the study of the relationships of organi ...
... learn to recognise and explain. Students are able to draw on existing knowledge of their own local area and expand on their understanding of biological concepts that can be identified through careful analysis of the biotic and abiotic factors operating. While the study of the relationships of organi ...
Habitat Conservation Planning for the Threatened
... LOW AND OPEN • Dominated by oak shrubs less than 2 m tall • Few if any trees • Bare sandy patches throughout ...
... LOW AND OPEN • Dominated by oak shrubs less than 2 m tall • Few if any trees • Bare sandy patches throughout ...
Principles of Ecology - Rochester Community Schools
... Occurs when more than one organism uses a resource at the same time ...
... Occurs when more than one organism uses a resource at the same time ...
Competition
... way that competing species can coexist is if competition is weak due to predation or other ecological interactions in the community. If predation reduces population sizes for multiple competing species in an area, then resources might never become limiting and competition might not be important. ...
... way that competing species can coexist is if competition is weak due to predation or other ecological interactions in the community. If predation reduces population sizes for multiple competing species in an area, then resources might never become limiting and competition might not be important. ...
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.