Ecology (NEW 2008)
... Fundamental vs. Realized Niche A. Fundamental: An organism’s full potential range of physical, chemical, biological conditions and resources it could theoretically use if there was no competition from other species. B. Realized: Range of resources it actually uses. ...
... Fundamental vs. Realized Niche A. Fundamental: An organism’s full potential range of physical, chemical, biological conditions and resources it could theoretically use if there was no competition from other species. B. Realized: Range of resources it actually uses. ...
Population Ecology Simulation
... boundaries may be vast, covering large areas of forest or ocean, yet the overall growth and health of the population's individuals is directly influenced by the geographical boundaries of the population. This is true in part because the boundaries of habitat in which a population resides define a f ...
... boundaries may be vast, covering large areas of forest or ocean, yet the overall growth and health of the population's individuals is directly influenced by the geographical boundaries of the population. This is true in part because the boundaries of habitat in which a population resides define a f ...
Research projects at the Angelo Reserve Oct 2004
... native frog population (e.g. mountain yellow legged frog) thriving in one watershed but dwindling or disappearing in another, apparently similar habitat. In all of these cases, ecological change, evolutionary (genetic) change, or both could account for the change in the species' performance and impa ...
... native frog population (e.g. mountain yellow legged frog) thriving in one watershed but dwindling or disappearing in another, apparently similar habitat. In all of these cases, ecological change, evolutionary (genetic) change, or both could account for the change in the species' performance and impa ...
Ecology13
... • Abiotic factors: low precipitation; variable temperatures; soils rich in minerals but poor in organic material • Plants: cacti and other succulents; ...
... • Abiotic factors: low precipitation; variable temperatures; soils rich in minerals but poor in organic material • Plants: cacti and other succulents; ...
Community Diversity
... Merriam-Webster - the existence of many different kinds of plants and animals in an environment. Wikipedia - the degree of variation of life forms within a given species, ecosystem, biome, or an entire planet. U.S. Congress Office of Technology Assessment - the variety and variability among living o ...
... Merriam-Webster - the existence of many different kinds of plants and animals in an environment. Wikipedia - the degree of variation of life forms within a given species, ecosystem, biome, or an entire planet. U.S. Congress Office of Technology Assessment - the variety and variability among living o ...
AIM: Students will know how to succeed on exams in urban ecology
... SWBAT identify 5 ways two populations could become reproductively isolated – SWBAT differentiate between directional, stabilizing, and disruptive selection – SWBAT recognize selection pressure from a word problem and what would happen to a population in response to that pressure ...
... SWBAT identify 5 ways two populations could become reproductively isolated – SWBAT differentiate between directional, stabilizing, and disruptive selection – SWBAT recognize selection pressure from a word problem and what would happen to a population in response to that pressure ...
otter
... martens. Otters are semi-aquatic carnivores which obtain most if not all their food in the water. In appearance they are small to medum sized animals with short legs, long slender bodies and a lengthy tapering tail. Their well developed senses make them expert hunters while their natural curiosity s ...
... martens. Otters are semi-aquatic carnivores which obtain most if not all their food in the water. In appearance they are small to medum sized animals with short legs, long slender bodies and a lengthy tapering tail. Their well developed senses make them expert hunters while their natural curiosity s ...
Environmental Science
... 26. The only competitors that humans have for food are other humans and Insects. ___________________ __________________________________________________________________________________ __________________________________________________________________________________ 27. The interaction generated by ...
... 26. The only competitors that humans have for food are other humans and Insects. ___________________ __________________________________________________________________________________ __________________________________________________________________________________ 27. The interaction generated by ...
What is a Plant Community?
... real and what types are just mental constructs? Populations and species are real entities, but are communities, and are they just convenient arbitrary human inventions? ...
... real and what types are just mental constructs? Populations and species are real entities, but are communities, and are they just convenient arbitrary human inventions? ...
An Overview of Herbivory as an Ecological Process
... The winner of that competition is determined by who eventually can hog the "most limiting resources"...usually the water, but, perhaps, nitrogen, other elements, or light. If, in case 2, grazers are left on the system "too long", the conversion occurs. Once grazers are removed, the system may not re ...
... The winner of that competition is determined by who eventually can hog the "most limiting resources"...usually the water, but, perhaps, nitrogen, other elements, or light. If, in case 2, grazers are left on the system "too long", the conversion occurs. Once grazers are removed, the system may not re ...
Modern lessons from ancient food webs
... and small. To that end, ecologists have adopted new tools designed to investigate ecological networks and help us uncover and understand past extinctions and their community-level consequences in the hopes of predicting those in the future. To do so, we compare reconstructions of past ecological net ...
... and small. To that end, ecologists have adopted new tools designed to investigate ecological networks and help us uncover and understand past extinctions and their community-level consequences in the hopes of predicting those in the future. To do so, we compare reconstructions of past ecological net ...
Principles of Population Ecology
... organisms, e.g. viruses, among individuals with crowding more susceptible to predators High population densities increase the likelihood of a predator catching an individual ...
... organisms, e.g. viruses, among individuals with crowding more susceptible to predators High population densities increase the likelihood of a predator catching an individual ...
Niche Graph
... lives in water. It’s body temperature varies with the surrounding air and water. In the winter bull frogs burrow into the mud of ponds or stream bottoms to hibernate. Female bullfrogs lay their eggs in water during warmer months of the year. Young frogs are called tadpoles ...
... lives in water. It’s body temperature varies with the surrounding air and water. In the winter bull frogs burrow into the mud of ponds or stream bottoms to hibernate. Female bullfrogs lay their eggs in water during warmer months of the year. Young frogs are called tadpoles ...
Chapter-13- Organisms and Population. 1. Important Terms Habitat
... Life History Variations: Evolution of populations aims at improving the reproductive fitness to the maximum in their habitats. Most birds and mammals breed many times during their life time. According to ecologists life history traits of an organism have evolved in relation to the constraints impose ...
... Life History Variations: Evolution of populations aims at improving the reproductive fitness to the maximum in their habitats. Most birds and mammals breed many times during their life time. According to ecologists life history traits of an organism have evolved in relation to the constraints impose ...
Biodiversity - University of Windsor
... year to year. A species living in a stable climate can evolve specialized adaptations to the specific climate. One which lives in an unstable or unpredictable climate must have broad tolerance limits, and, logically, broad niches. That leaves niche space for fewer species. ...
... year to year. A species living in a stable climate can evolve specialized adaptations to the specific climate. One which lives in an unstable or unpredictable climate must have broad tolerance limits, and, logically, broad niches. That leaves niche space for fewer species. ...
When everything is not everywhere but species evolve - CERES
... initial pool of species, by introducing mutants whose invasive potential depends on their traits and the environmental conditions. It allows us to test the similarity of the communities selected when everything is everywhere, and when everything is not necessarily everywhere but species can evolve. ...
... initial pool of species, by introducing mutants whose invasive potential depends on their traits and the environmental conditions. It allows us to test the similarity of the communities selected when everything is everywhere, and when everything is not necessarily everywhere but species can evolve. ...
lecture presentations - Hialeah Senior High School
... benefits and the other is neither harmed nor helped • Commensal interactions are hard to document in nature because any close association likely affects both species ...
... benefits and the other is neither harmed nor helped • Commensal interactions are hard to document in nature because any close association likely affects both species ...
A Physical Basis of Evolution and Speculation on an
... of the system and thus increases the order of the system. In this scheme, order has a very natural description, increasing the order of the system makes it more stable, longer lasting in time, or more viable in the biological sense. This is true of either the ideal gas approaching equilibrium, the c ...
... of the system and thus increases the order of the system. In this scheme, order has a very natural description, increasing the order of the system makes it more stable, longer lasting in time, or more viable in the biological sense. This is true of either the ideal gas approaching equilibrium, the c ...
Introduction - Austin Community College
... Interactions between species may have one of two effects on species distribution. If one species competes with another, one or both of their ranges is likely to be smaller than the range determined by physical conditions and barriers alone. On the other ...
... Interactions between species may have one of two effects on species distribution. If one species competes with another, one or both of their ranges is likely to be smaller than the range determined by physical conditions and barriers alone. On the other ...
Chapter 16
... species – Organisms of similar appearance sometimes belong to different species – The cordilleran flycatcher and Pacific slope flycatcher are so similar that birdwatchers can’t tell them apart – These birds were considered to be a single species, but research revealed that they do not interbreed and ...
... species – Organisms of similar appearance sometimes belong to different species – The cordilleran flycatcher and Pacific slope flycatcher are so similar that birdwatchers can’t tell them apart – These birds were considered to be a single species, but research revealed that they do not interbreed and ...
Veronica Ritchie
... Greater Bilby, Macrotis lagotis A matter of national environmental significance Listed as Vulnerable under EPBC Act in 2000 Controlling Provision: Threatened Species and Ecological Communities Significant Impacts: if a person is proposing to take an action that will have, or is likely to have ...
... Greater Bilby, Macrotis lagotis A matter of national environmental significance Listed as Vulnerable under EPBC Act in 2000 Controlling Provision: Threatened Species and Ecological Communities Significant Impacts: if a person is proposing to take an action that will have, or is likely to have ...
as a PDF
... However, in theory and in practice there are differences between these levels. Community ecologists seek to predict the properties of aggregations of populations, just as population ecologists wish to predict the properties of aggregations of individuals (Table 1). There are many possible properties ...
... However, in theory and in practice there are differences between these levels. Community ecologists seek to predict the properties of aggregations of populations, just as population ecologists wish to predict the properties of aggregations of individuals (Table 1). There are many possible properties ...
Diversity of freshwater fish (Pisces)
... Introduction. Fishes exhibit enormous diversity in their morphology, in the habitats they occupy and in their biology. They live in almost every conceivable type of aquatic habitat, e.g. marine, brackish and freshwater, in the world (Nelson 2006). About 40,000 species of fishes are known. Various wo ...
... Introduction. Fishes exhibit enormous diversity in their morphology, in the habitats they occupy and in their biology. They live in almost every conceivable type of aquatic habitat, e.g. marine, brackish and freshwater, in the world (Nelson 2006). About 40,000 species of fishes are known. Various wo ...
chapt13_lecture
... Often the best option is to choose an alternative condition with desirable characteristics. Sometimes an entirely new use for the site is the best alternative. ...
... Often the best option is to choose an alternative condition with desirable characteristics. Sometimes an entirely new use for the site is the best alternative. ...
Ecology I
... I can describe the three types of dispersion patterns. I can differentiate between exponential growth and logistic growth. I can define and identify density-dependent and density-independent limiting factors. ...
... I can describe the three types of dispersion patterns. I can differentiate between exponential growth and logistic growth. I can define and identify density-dependent and density-independent limiting factors. ...
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.