Simpson*s Diversity Index
... Diversity indices allow us to monitor diversity over time in changing ecosystems – for example, to monitor effects of pollution or climate change Diversity indices allow us to ...
... Diversity indices allow us to monitor diversity over time in changing ecosystems – for example, to monitor effects of pollution or climate change Diversity indices allow us to ...
What do we mean by diversity?
... • Problem: some species-rich environments do occur in seasonal environments; some stable environments are poor in species. • Questions: Do fluctuating environments select for broad tolerance, broad niches, and low specialization? ...
... • Problem: some species-rich environments do occur in seasonal environments; some stable environments are poor in species. • Questions: Do fluctuating environments select for broad tolerance, broad niches, and low specialization? ...
The Ecosystem - washburnsciencelies
... dispersal and involves populations, rather than individuals. Explain spread of species along edge of territory to new areas Secular Migration – Dispersal over geological timescales. Takes place so slowly that the diffusing species undergoes evolutionary changes during the process. ...
... dispersal and involves populations, rather than individuals. Explain spread of species along edge of territory to new areas Secular Migration – Dispersal over geological timescales. Takes place so slowly that the diffusing species undergoes evolutionary changes during the process. ...
Cycles
... sun, as well as water, carbon and other essential nutrients Food Chains populations are affected by populations below (food source) and above (food source for others) ...
... sun, as well as water, carbon and other essential nutrients Food Chains populations are affected by populations below (food source) and above (food source for others) ...
key - Scioly.org
... 41. Which of the following statements about ecological pyramids is true?A. Pyramids built upon the biomass of Olrganisms at each level eliminate size as a factor. B. Energy gains between trophic levels occur based upon biomass conversion. C. The limited number of trophic levels in an ecological pyra ...
... 41. Which of the following statements about ecological pyramids is true?A. Pyramids built upon the biomass of Olrganisms at each level eliminate size as a factor. B. Energy gains between trophic levels occur based upon biomass conversion. C. The limited number of trophic levels in an ecological pyra ...
Envi Sci @ CHS
... narrow range of climatic and other environmental conditions, or use only one type or a few types of food. 8. Interaction between species in which one organism, called the parasite, preys on another organism, called the host, by living on or in the host. 9. Species that normally live and thrive in a ...
... narrow range of climatic and other environmental conditions, or use only one type or a few types of food. 8. Interaction between species in which one organism, called the parasite, preys on another organism, called the host, by living on or in the host. 9. Species that normally live and thrive in a ...
Examples - 9thlawofscience
... temperatures and short growing seasons for plants at the first trophic level In general, ecosystems with extreme physical conditions are less rich ...
... temperatures and short growing seasons for plants at the first trophic level In general, ecosystems with extreme physical conditions are less rich ...
Students should be able to analyze scientific studies in light of their
... The biochemical and genetic mechanisms behind epistasis, pleiotropy, and quantitative traits. Perform a chi-square test. Gene linkage and genetic map distances ...
... The biochemical and genetic mechanisms behind epistasis, pleiotropy, and quantitative traits. Perform a chi-square test. Gene linkage and genetic map distances ...
Midterm Final Review
... Species diversity = species richness (the number of different species they contain), and the relative abundance of each species. • Dominant species: has the highest biomass or is the most abundant in the community • Keystone species: exert control on community structure by their important ecological ...
... Species diversity = species richness (the number of different species they contain), and the relative abundance of each species. • Dominant species: has the highest biomass or is the most abundant in the community • Keystone species: exert control on community structure by their important ecological ...
Chapter 7 - American Academy
... 1. What are the variables you can control in this simulation? 2. What happens if you have no selection factor (food or wolves) clicked? If you add a selection factor, how does this affect your population of bunnies? ...
... 1. What are the variables you can control in this simulation? 2. What happens if you have no selection factor (food or wolves) clicked? If you add a selection factor, how does this affect your population of bunnies? ...
Ecology Review
... – i.e. Predation, disease, competition, territoriality, waste accumulation • Density-Independent factors: population not a factor – i.e. Natural disasters: fire, flood, weather ...
... – i.e. Predation, disease, competition, territoriality, waste accumulation • Density-Independent factors: population not a factor – i.e. Natural disasters: fire, flood, weather ...
Slajd 1
... regional to global patterns of species diversity, spatial and temporal distributions and energy use Macroecology is closely linked to biogeography and evolutionary ecology ...
... regional to global patterns of species diversity, spatial and temporal distributions and energy use Macroecology is closely linked to biogeography and evolutionary ecology ...
Creatures of Light Activities
... In these activities, students will focus on ecological relationships and investigate the many ways that species might interact using bioluminescence. • Before Your Visit: Students will explore the variety of relationships between creatures that glow. • During Your Visit: Students will observe and co ...
... In these activities, students will focus on ecological relationships and investigate the many ways that species might interact using bioluminescence. • Before Your Visit: Students will explore the variety of relationships between creatures that glow. • During Your Visit: Students will observe and co ...
vocabulary - Woodland Hills School District
... What can be done to help preserve biodiversity? STUDENT OBJECTIVES (COMPETENCIES/OUTCOMES): Students will be able to: Explain the role that specific organisms have in their ecosystem. Identify a species and explain what effects an increase or decline in its numbers might have on the ecosystem. ...
... What can be done to help preserve biodiversity? STUDENT OBJECTIVES (COMPETENCIES/OUTCOMES): Students will be able to: Explain the role that specific organisms have in their ecosystem. Identify a species and explain what effects an increase or decline in its numbers might have on the ecosystem. ...
The nature of the plant community: a reductionist view
... Facilitation: A reaction by one species that increases the survival/growth/reproduction of another but is disadvantageous to the plant causing the reaction. Genet: A genetic individual, i.e. the derivative of one zygote. It may be one recognizable ‘individual’, or it may comprise many plants produce ...
... Facilitation: A reaction by one species that increases the survival/growth/reproduction of another but is disadvantageous to the plant causing the reaction. Genet: A genetic individual, i.e. the derivative of one zygote. It may be one recognizable ‘individual’, or it may comprise many plants produce ...
PRINCIPLES OF PHYLOGENETICS: ECOLOGY
... The corollary of these two principles is that closely related species should co-occur less than would be expected (though the question of what is expected requires careful consideration). Initial efforts to test this hypothesis focused on species:genus ratios, predicted to be lower than expected in ...
... The corollary of these two principles is that closely related species should co-occur less than would be expected (though the question of what is expected requires careful consideration). Initial efforts to test this hypothesis focused on species:genus ratios, predicted to be lower than expected in ...
Chapter 5 Biodiversity,Species Interactions2009
... Soil, water, air, plants and animals are renewed through natural processes Energy is always required to produce or maintain an energy flow or to recycle chemicals ...
... Soil, water, air, plants and animals are renewed through natural processes Energy is always required to produce or maintain an energy flow or to recycle chemicals ...
Communities: Many Interacting Populations
... lynx population growth. Describe two patterns demonstrated b/w predator and prey populations. ...
... lynx population growth. Describe two patterns demonstrated b/w predator and prey populations. ...
Ecological genomics—changing perspectives on Darwin`s basic
... apple maggot fly Rhagoletis pomonella. Another study (Cristian Corio et al., University of Buenos Aires) emphasized the importance of gene expression divergence in host shift of Drosophila koepferae between cacti. While these genome-wide studies represent the integrated goals of Ecological Genomics ...
... apple maggot fly Rhagoletis pomonella. Another study (Cristian Corio et al., University of Buenos Aires) emphasized the importance of gene expression divergence in host shift of Drosophila koepferae between cacti. While these genome-wide studies represent the integrated goals of Ecological Genomics ...
age structure, age class, survivorship, fecundity, life table, allocation
... two different ecological hypotheses to explain this pattern, and then graph two different results that would support one or the other of your two hypotheses. Describe what each outcome would tell you about the fundamental and realized niche of the species. What additional treatment should be include ...
... two different ecological hypotheses to explain this pattern, and then graph two different results that would support one or the other of your two hypotheses. Describe what each outcome would tell you about the fundamental and realized niche of the species. What additional treatment should be include ...
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.