Biological Species Concept
... • Sympatric Speciation – differentiation of populations within a common geographic area into new species; some sort of reproductive barrier has to develop • Species that occur together: – Are distinctive entities – Phenotypically different – Utilize different parts of the habitat – Separate behavior ...
... • Sympatric Speciation – differentiation of populations within a common geographic area into new species; some sort of reproductive barrier has to develop • Species that occur together: – Are distinctive entities – Phenotypically different – Utilize different parts of the habitat – Separate behavior ...
18 Sp Abun-Local Diversity 2010
... Lecture 17 Chap 20 SPECIES ABUNDANCE + DIVERSITY 1 MAJOR CONCEPTS 1. Most species are moderately abundant or rare; few are very abundant. 2. Species diversity is quantified by combining the number of species (species richness) and their relative abundance. 3. Species diversity is defined at multiple ...
... Lecture 17 Chap 20 SPECIES ABUNDANCE + DIVERSITY 1 MAJOR CONCEPTS 1. Most species are moderately abundant or rare; few are very abundant. 2. Species diversity is quantified by combining the number of species (species richness) and their relative abundance. 3. Species diversity is defined at multiple ...
Biosphere Biome Ecosystem Community Population Species 10
... 31. Limiting factors are factors that control the growth of a population. What is the difference between densitydependent limiting factors and density-independent limiting factors? Density dependent factors depend on how densely populated an area is. The population size is affected by these facto ...
... 31. Limiting factors are factors that control the growth of a population. What is the difference between densitydependent limiting factors and density-independent limiting factors? Density dependent factors depend on how densely populated an area is. The population size is affected by these facto ...
What is your biodiversity IQ?
... 1. What are the necessary parts of a graph? _________________________________________________ 2. What is the difference between the independent variable and the dependent variable? __________________ ...
... 1. What are the necessary parts of a graph? _________________________________________________ 2. What is the difference between the independent variable and the dependent variable? __________________ ...
San Diego Chapter of the California Native Plant Society P O Box
... 1989, 1999 and by Dr. Landis in a site visit of December 8, 2013, and it is not mentioned in the MND at all. Given the apparent age of the site and the diversity of microhabitats not mapped (see next paragraph), the site must be properly surveyed during the spring and fall, to insure that sensitive, ...
... 1989, 1999 and by Dr. Landis in a site visit of December 8, 2013, and it is not mentioned in the MND at all. Given the apparent age of the site and the diversity of microhabitats not mapped (see next paragraph), the site must be properly surveyed during the spring and fall, to insure that sensitive, ...
Unit 5
... Because of the energy level that is transfer from one level to the other. Only a 10% of this energy is preserved. Distinguish between energy pyramids and biomass pyramids. Energy pyramid shows the amount of energy transferred from one trophic level to another. The biomass pyramid represents the tota ...
... Because of the energy level that is transfer from one level to the other. Only a 10% of this energy is preserved. Distinguish between energy pyramids and biomass pyramids. Energy pyramid shows the amount of energy transferred from one trophic level to another. The biomass pyramid represents the tota ...
Biological Goals and Objectives: Approach and Organization
... • Multiple objectives support one goal • Conservation actions will likely support multiple objectives • Organize hierarchically – Landscape level (wildlife linkages, ecosystem processes, biodiversity) – Natural community level (species' habitat, community function) – Species level (populations) ...
... • Multiple objectives support one goal • Conservation actions will likely support multiple objectives • Organize hierarchically – Landscape level (wildlife linkages, ecosystem processes, biodiversity) – Natural community level (species' habitat, community function) – Species level (populations) ...
Ecological Succession Worksheet
... Succession, a series of environmental changes a, occurs in all ecosystems. The stages that any ecosystem passes through are predictable. In this activity, you will place the stages of succession of two ecosystems into sequence. You will also describe changes in an ecosystem and make predictions abou ...
... Succession, a series of environmental changes a, occurs in all ecosystems. The stages that any ecosystem passes through are predictable. In this activity, you will place the stages of succession of two ecosystems into sequence. You will also describe changes in an ecosystem and make predictions abou ...
ENVI 30 Environmental Issues
... Counterpoint: Wilson – Projections using areaspecies relationships in tropical settings (where most of biodiversity loss currently is happening) are conservative ...
... Counterpoint: Wilson – Projections using areaspecies relationships in tropical settings (where most of biodiversity loss currently is happening) are conservative ...
Bio 101 Test 5 Study Guide Test 5 will cover chapters 34, 36, 37
... What is the % of N in the air? Can plants absorb N directly from the air? Which organisms can help plants absorb N from the air. What is this process called? A family of plants called legumes has these organisms growing in their root nodules. Give examples of legume plants. ...
... What is the % of N in the air? Can plants absorb N directly from the air? Which organisms can help plants absorb N from the air. What is this process called? A family of plants called legumes has these organisms growing in their root nodules. Give examples of legume plants. ...
Competition trade-offs
... Challenges to a competition-centric view of community assembly comes from species-rich communities where the number of coexisting species far exceeds the number of limiting resources or the scale of their heterogeneity. ...
... Challenges to a competition-centric view of community assembly comes from species-rich communities where the number of coexisting species far exceeds the number of limiting resources or the scale of their heterogeneity. ...
Community Ecology
... populations living close enough together for potential interaction • Dominant Species−most abundant, highest biomass, powerful control over occurrence and distribution of other species… VA Sugar Maple • Keystone Species−NOT necessarily most abundant, exert strong control due to their ecological role ...
... populations living close enough together for potential interaction • Dominant Species−most abundant, highest biomass, powerful control over occurrence and distribution of other species… VA Sugar Maple • Keystone Species−NOT necessarily most abundant, exert strong control due to their ecological role ...
Ecology ppt notes
... –____________________ – the animal that preys on others –__________ – the animal hunted and killed for food _____________________ __________exists between organisms of two different species that live together in direct contact. ...
... –____________________ – the animal that preys on others –__________ – the animal hunted and killed for food _____________________ __________exists between organisms of two different species that live together in direct contact. ...
Document
... • Population size is, also, affected by health care or its lack; by epidemics (such as AIDS); by losses through war, etc. Lack of prenatal care for expectant mothers, failure to protect children from communicable diseases (like measles) or wide-spread diseases (like malaria), can contribute to a sma ...
... • Population size is, also, affected by health care or its lack; by epidemics (such as AIDS); by losses through war, etc. Lack of prenatal care for expectant mothers, failure to protect children from communicable diseases (like measles) or wide-spread diseases (like malaria), can contribute to a sma ...
ppt
... Of course we went for a float in the water. This is a must do for anyone coming to Israel. The water in the Dead Sea is some 5x more salty than sea water. In addition, it is laden with many other minerals. The Israelis claim soaking in its waters is healthy and is a good treatment for any skin prob ...
... Of course we went for a float in the water. This is a must do for anyone coming to Israel. The water in the Dead Sea is some 5x more salty than sea water. In addition, it is laden with many other minerals. The Israelis claim soaking in its waters is healthy and is a good treatment for any skin prob ...
10 - succession (sum)
... • sequence of communities taking place on sites that have already supported life • ie. Abandoned farms, clearcut forests, burned areas, etc. ...
... • sequence of communities taking place on sites that have already supported life • ie. Abandoned farms, clearcut forests, burned areas, etc. ...
Overview of Human Impacts
... • In San Francisco Bay, >90% of benthic biomass is introduced • A new species arrives every 12 weeks • Creates loss of beta diversity, functional extinction and potential for outright ...
... • In San Francisco Bay, >90% of benthic biomass is introduced • A new species arrives every 12 weeks • Creates loss of beta diversity, functional extinction and potential for outright ...
Conservation Biology
... Economists have been comparing the monetary value of intact habitats with the value of using (destroying) those habitats (such as for logging or farming). They find A. the immediate economic gain is worth it, such as in the shrimp farms in Thailand B. the long-term problems are minimal, and usually ...
... Economists have been comparing the monetary value of intact habitats with the value of using (destroying) those habitats (such as for logging or farming). They find A. the immediate economic gain is worth it, such as in the shrimp farms in Thailand B. the long-term problems are minimal, and usually ...
Ecology - Citrus College
... Competitive Exclusion Principle • States the following: 1. The concept that two species cannot continue to occupy the same environmental niche. 2. They would compete for the same limited resources. 3. One species will use the resources more efficiently and have a reproductive advantage that will ev ...
... Competitive Exclusion Principle • States the following: 1. The concept that two species cannot continue to occupy the same environmental niche. 2. They would compete for the same limited resources. 3. One species will use the resources more efficiently and have a reproductive advantage that will ev ...
1 Community Ecology
... have fewer or more than three trophic levels. •As primary productivity increases, trophic levels will be sequentially added. ...
... have fewer or more than three trophic levels. •As primary productivity increases, trophic levels will be sequentially added. ...
Scotland: Significant species and species groups
... affected by development of brownfield sites and grasslands being invaded by scrub. Anaspis septentrionalis – a scraptid beetle known from specimens collected in 1976 near Aviemore. It is thought that this species may now be extinct. In addition, the February red stonefly (Brachyptera putata) is now ...
... affected by development of brownfield sites and grasslands being invaded by scrub. Anaspis septentrionalis – a scraptid beetle known from specimens collected in 1976 near Aviemore. It is thought that this species may now be extinct. In addition, the February red stonefly (Brachyptera putata) is now ...
Chapter 8 from class
... • What determines the number of species in a community? • How can we classify species according to their roles? • How do species interact with one another? • How do communities change as conditions change? • Does high species diversity increase the stability of ecosystems? ...
... • What determines the number of species in a community? • How can we classify species according to their roles? • How do species interact with one another? • How do communities change as conditions change? • Does high species diversity increase the stability of ecosystems? ...
Introduced species
An introduced, alien, exotic, non-indigenous, or non-native species, or simply an introduction, is a species living outside its native distributional range, which has arrived there by human activity, either deliberate or accidental. Non-native species can have various effects on the local ecosystem. Introduced species that become established and spread beyond the place of introduction are called invasive species. Some have a negative effect on a local ecosystem. Some introduced species may have no negative effect or only minor impact. Some species have been introduced intentionally to combat pests. They are called biocontrols and may be regarded as beneficial as an alternative to pesticides in agriculture for example. In some instances the potential for being beneficial or detrimental in the long run remains unknown. A list of some introduced species is given in a separate article.The effects of introduced species on natural environments have gained much scrutiny from scientists, governments, farmers and others.