APES 3 Ecology Notes
... 7) neutral mutation—does not benefit or harm the individual 4.3 Notes III. Mechanisms of Species Adaptation A. Change through Natural Selection 1) selective pressures—biotic and abiotic limiting factors of environmental resistance ...
... 7) neutral mutation—does not benefit or harm the individual 4.3 Notes III. Mechanisms of Species Adaptation A. Change through Natural Selection 1) selective pressures—biotic and abiotic limiting factors of environmental resistance ...
The Red Queen and the Court Jester
... Geographic and tectonic history has generated patterns of species diversity through time. The slow dance of the continents as Pangaea broke up during the past 200 My has affected modern distribution patterns. Unique terrestrial faunas and floras, notably those of Australia and South America, arose b ...
... Geographic and tectonic history has generated patterns of species diversity through time. The slow dance of the continents as Pangaea broke up during the past 200 My has affected modern distribution patterns. Unique terrestrial faunas and floras, notably those of Australia and South America, arose b ...
1 APES Ch. 4 Notes Ecosystems: How They Change
... 7) neutral mutation—does not benefit or harm the individual 4.3 Notes III. Mechanisms of Species Adaptation A. Change through Natural Selection 1) selective pressures—biotic and abiotic limiting factors of environmental resistance ...
... 7) neutral mutation—does not benefit or harm the individual 4.3 Notes III. Mechanisms of Species Adaptation A. Change through Natural Selection 1) selective pressures—biotic and abiotic limiting factors of environmental resistance ...
Ch. 6 Population and Community Ecology
... preservation of biodiversity • Metapopulations = separate and distinct populations that have been connected by occasional movements of individuals between them. • This provides s species with some protection against threats such as disease. • Increases the little genetic variation that occurs in sma ...
... preservation of biodiversity • Metapopulations = separate and distinct populations that have been connected by occasional movements of individuals between them. • This provides s species with some protection against threats such as disease. • Increases the little genetic variation that occurs in sma ...
Descent with Modification:
... 7. Explain what Darwin meant by "descent with modification”. 8. Explain what evidence convinced Darwin that species change over time. 9. Explain how Linnaeus' classification scheme fit Darwin's theory of evolution by natural selection. 10. Describe the three inferences Darwin made from his observati ...
... 7. Explain what Darwin meant by "descent with modification”. 8. Explain what evidence convinced Darwin that species change over time. 9. Explain how Linnaeus' classification scheme fit Darwin's theory of evolution by natural selection. 10. Describe the three inferences Darwin made from his observati ...
Lecture 1 Introduction and Relevance of Evolution
... Accommodate the altered environment with phenotypic plasticity (direct response to the environment) Adapt to the altered environment through genetic changes Go extinct! ...
... Accommodate the altered environment with phenotypic plasticity (direct response to the environment) Adapt to the altered environment through genetic changes Go extinct! ...
the vectors of invasions by alien species
... number of scattered populations of an alien species increases (either through postintroduction range expansion, even by natural means, or simply through the widespread inoculation of disparate populations around the world by human-mediated vectors), the potential of such species to interface with a ...
... number of scattered populations of an alien species increases (either through postintroduction range expansion, even by natural means, or simply through the widespread inoculation of disparate populations around the world by human-mediated vectors), the potential of such species to interface with a ...
Chapter 24 (Habitats) PP
... how it obtains food and shelter, finds a mate, cares for its young, and avoids danger. Special adaptions that improve survival are often part of an organism’s niche. An organism’s niche includes how it avoids being eaten and how it finds or captures its food. ...
... how it obtains food and shelter, finds a mate, cares for its young, and avoids danger. Special adaptions that improve survival are often part of an organism’s niche. An organism’s niche includes how it avoids being eaten and how it finds or captures its food. ...
Forest Ecology - Hobcaw Barony
... species are adapted to living in only one type of habitat. For example, you might see plenty of parrot species in a tropical rainforest, but most of these species probably wouldn’t be able to survive in the temperate forests covering much of the United States. Other organisms can survive within seve ...
... species are adapted to living in only one type of habitat. For example, you might see plenty of parrot species in a tropical rainforest, but most of these species probably wouldn’t be able to survive in the temperate forests covering much of the United States. Other organisms can survive within seve ...
the vectors of invasions by alien species
... number of scattered populations of an alien species increases (either through postintroduction range expansion, even by natural means, or simply through the widespread inoculation of disparate populations around the world by human-mediated vectors), the potential of such species to interface with a ...
... number of scattered populations of an alien species increases (either through postintroduction range expansion, even by natural means, or simply through the widespread inoculation of disparate populations around the world by human-mediated vectors), the potential of such species to interface with a ...
ME408, Alien species
... 2. Is the lag phase just a result of the time it takes for adaptive evolution to produce invasive phenotypes? An invasive species does not usually become invasive immediately after introduction. Usually there is a time lag, before the invasion begins. 3. How often is the failure of exotic species to ...
... 2. Is the lag phase just a result of the time it takes for adaptive evolution to produce invasive phenotypes? An invasive species does not usually become invasive immediately after introduction. Usually there is a time lag, before the invasion begins. 3. How often is the failure of exotic species to ...
Lecture PowerPoint - Biology
... area where an organism lives, while a niche includes all the specific physical, chemical, and biological factors needed by an organism to survive, stay healthy, and ...
... area where an organism lives, while a niche includes all the specific physical, chemical, and biological factors needed by an organism to survive, stay healthy, and ...
Ecological Succession page 146
... heterotrophs. (See the Glossary for definitions.) Take the Processes and Events cards out of their envelope. These cards list some processes and events that influence changes in an ecosystem that is undergoing succession. ...
... heterotrophs. (See the Glossary for definitions.) Take the Processes and Events cards out of their envelope. These cards list some processes and events that influence changes in an ecosystem that is undergoing succession. ...
the importance of natural history studies for a better comprehension
... habitat will influence the distribution and abundance of other organisms that use the same resource (LILL; MARQUIS 2007). In a recent research in the Brazilian Cerrado, Velasque (2011) showed the relevance of natural history and basic biology studies of ecosystem engineers to understand their impact ...
... habitat will influence the distribution and abundance of other organisms that use the same resource (LILL; MARQUIS 2007). In a recent research in the Brazilian Cerrado, Velasque (2011) showed the relevance of natural history and basic biology studies of ecosystem engineers to understand their impact ...
Postgraduate Forum 2007 - Royal Entomological Society
... the UK. Willows are the host plant of the giant willow aphid, Tuberolachnus salignus, which often occurs at high density. Results from laboratory bioassays show that T. salignus is significantly attracted to certain varieties and not to others. The same conclusion can be drawn from T. salignus infes ...
... the UK. Willows are the host plant of the giant willow aphid, Tuberolachnus salignus, which often occurs at high density. Results from laboratory bioassays show that T. salignus is significantly attracted to certain varieties and not to others. The same conclusion can be drawn from T. salignus infes ...
45_lecture_ppt part 1 - Tracy Jubenville Nearing
... The species composition (also called species richness) of a community is a listing of various species in the community. Diversity includes both species richness and the abundance of different species. ...
... The species composition (also called species richness) of a community is a listing of various species in the community. Diversity includes both species richness and the abundance of different species. ...
three possibile models for replication
... environment is called the species’ ecological niche. As a result of competition and other factors, a species’ fundamental niche, which is the niche potentially occupied by that species, may be different from its realized niche that is the niche the species actually occupies. For example, eating worm ...
... environment is called the species’ ecological niche. As a result of competition and other factors, a species’ fundamental niche, which is the niche potentially occupied by that species, may be different from its realized niche that is the niche the species actually occupies. For example, eating worm ...
Warblers Coexist in Simple Habitat
... Competition and Specialization • If we begin with two very similar species, competition is expected to be strong. • Individuals whose resource use (character trait) differs, in the direction of low overlap, should be favored by natural selection. • Over time, character traits in the two populations ...
... Competition and Specialization • If we begin with two very similar species, competition is expected to be strong. • Individuals whose resource use (character trait) differs, in the direction of low overlap, should be favored by natural selection. • Over time, character traits in the two populations ...
Department of Botany, Faculty of Biological Sciences
... Wednesday 22 February 2006 at 16:30 in the Botany Department Building (Na Zlaté stoce 1), České Budějovice Po semináři bude na vile drobné popovídání s občestvením. Pokud se chcete zúčastnit i této akce, prosím, kontaktujte Šuspu ([email protected]). Pojedete-li z větší dálky, ověřte si, že se seminář ...
... Wednesday 22 February 2006 at 16:30 in the Botany Department Building (Na Zlaté stoce 1), České Budějovice Po semináři bude na vile drobné popovídání s občestvením. Pokud se chcete zúčastnit i této akce, prosím, kontaktujte Šuspu ([email protected]). Pojedete-li z větší dálky, ověřte si, že se seminář ...
Climates April 25, 2013 Mr. Alvarez
... Mutualism- Both species benefit Insects help pollinate flowers, flowers provide food for insects in form of nectar and pollen ...
... Mutualism- Both species benefit Insects help pollinate flowers, flowers provide food for insects in form of nectar and pollen ...
Chapter 17 Factors Influencing the Structure of Communities
... interactions between prey species This type of indirect interactions is called keystone predation, where the predator enhances one or more inferior competitors by reducing the abundance of the superior ...
... interactions between prey species This type of indirect interactions is called keystone predation, where the predator enhances one or more inferior competitors by reducing the abundance of the superior ...
Word File - UNESCO World Heritage Centre
... mountains stretched in Southwest-Northeast direction. The complex topography has altitudinal variations ranging from 500 meters above sea level in the Cañada (glen) Cuicatlán, up to 3200 meters at the peak of the Sierras de Juárez and Mazatec. The Tehuacán Valley and highlands of Oaxaca located betw ...
... mountains stretched in Southwest-Northeast direction. The complex topography has altitudinal variations ranging from 500 meters above sea level in the Cañada (glen) Cuicatlán, up to 3200 meters at the peak of the Sierras de Juárez and Mazatec. The Tehuacán Valley and highlands of Oaxaca located betw ...
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.