dependance
... equilibrium with an « optimal value » Climax a biological community of plants and animals which has reached a steady state. This equilibrium occurs because the climax community is composed of species best adapted to average conditions in that area. The idea of a single climatic climax, which is defi ...
... equilibrium with an « optimal value » Climax a biological community of plants and animals which has reached a steady state. This equilibrium occurs because the climax community is composed of species best adapted to average conditions in that area. The idea of a single climatic climax, which is defi ...
ECOSYSTEM
... 21. How the standing crop is is measured? The standing crop is measured as the mass of living organisms (biomass) or the number in a unit area 22. What is 10% law? The number of trophic levels in the grazing food chain is restricted as the transfer of energy follows 10 per cent law – only 10 per cen ...
... 21. How the standing crop is is measured? The standing crop is measured as the mass of living organisms (biomass) or the number in a unit area 22. What is 10% law? The number of trophic levels in the grazing food chain is restricted as the transfer of energy follows 10 per cent law – only 10 per cen ...
Bio 30 Unit D2 -PopulationsTAR
... interspecies competition (the competition between two different species) • there also exists intraspecies competition, where members of the same species compete for resources such as food, space and mates ...
... interspecies competition (the competition between two different species) • there also exists intraspecies competition, where members of the same species compete for resources such as food, space and mates ...
Lecture Outline
... b. The diversity and abundance of a species in a particular community will be the same before and after a disturbance. c. Communities develop by passing through a series of predictable stages, culminating in a stable climax community. (1) The nature of any climax community is determined by the area’ ...
... b. The diversity and abundance of a species in a particular community will be the same before and after a disturbance. c. Communities develop by passing through a series of predictable stages, culminating in a stable climax community. (1) The nature of any climax community is determined by the area’ ...
ecology ppt
... • They nest in different locations and hunt for food in different areas of the ocean. ...
... • They nest in different locations and hunt for food in different areas of the ocean. ...
Landslides as ecosystem disturbance
... It is noteworthy to consider that the Andes are characterized by active plate convergence and uplift due to the South American Plate colliding with the Nazca Plate (Van der Hammen 1988). Intense seismic activity occurs constantly. The uplift average is as much as a meter per thousand years, and rap ...
... It is noteworthy to consider that the Andes are characterized by active plate convergence and uplift due to the South American Plate colliding with the Nazca Plate (Van der Hammen 1988). Intense seismic activity occurs constantly. The uplift average is as much as a meter per thousand years, and rap ...
File
... 3. Energy flow: Food chains. Lindeman’s rule of 10% 4. Ecological pyramids: Numbers, Biomass, Energy 5. Succession: Primary and Secondary Succession. 1. Ecosystem structure: Habitat – Niche – Trophic levels Community (Biocoenosis) – living organisms of different populations in the same area. Ecosyst ...
... 3. Energy flow: Food chains. Lindeman’s rule of 10% 4. Ecological pyramids: Numbers, Biomass, Energy 5. Succession: Primary and Secondary Succession. 1. Ecosystem structure: Habitat – Niche – Trophic levels Community (Biocoenosis) – living organisms of different populations in the same area. Ecosyst ...
Ch 5 PPT
... • Occurs when there are no traces of the original community remaining, including vegetation and soil • Pioneer species, such as lichens, are the first to colonize. • The environment changes as new species move in, adding nutrients and generating habitat. ...
... • Occurs when there are no traces of the original community remaining, including vegetation and soil • Pioneer species, such as lichens, are the first to colonize. • The environment changes as new species move in, adding nutrients and generating habitat. ...
Chapter 11 packet
... 1. Polar ice biome ______________________________________________ This biome is thick sheets of ice and may appear lifeless but is full of organisms and animals. ...
... 1. Polar ice biome ______________________________________________ This biome is thick sheets of ice and may appear lifeless but is full of organisms and animals. ...
Biology
... 1. identify the levels of organization within the biosphere 2. explain the difference between abiotic factors and biotic factors 3. differentiate between an organisms habitat and niche 4. identify the three different types of symbiotic relationship 5. describe the flow of energy in an ecosystem by c ...
... 1. identify the levels of organization within the biosphere 2. explain the difference between abiotic factors and biotic factors 3. differentiate between an organisms habitat and niche 4. identify the three different types of symbiotic relationship 5. describe the flow of energy in an ecosystem by c ...
Summary/Reflection of Dan Freedman`s article, Science Education
... 3) A rapidly growing population is indicated when a large proportion of the population is young. 4) Therefore, age structure diagrams that are pyramid-shaped, with tiers larger at the base and narrower at the top, indicate rapidly growing populations. 5) In contrast, age structure diagrams with tier ...
... 3) A rapidly growing population is indicated when a large proportion of the population is young. 4) Therefore, age structure diagrams that are pyramid-shaped, with tiers larger at the base and narrower at the top, indicate rapidly growing populations. 5) In contrast, age structure diagrams with tier ...
age structure, age class, survivorship, fecundity, life table, allocation
... 7) List the major factors that lead to the creation of distinct climates. Give an example of how differences in these factors can lead to distinct biomes. Be able to name several major biomes and describe their basic characteristics. 8) Do a simple sketch of the global carbon cycle, including the ma ...
... 7) List the major factors that lead to the creation of distinct climates. Give an example of how differences in these factors can lead to distinct biomes. Be able to name several major biomes and describe their basic characteristics. 8) Do a simple sketch of the global carbon cycle, including the ma ...
Ecological Succession
... 2. Either the wind blows seeds or insects carry seeds allowing new weeds to appear 3. Small trees (such as conifers may start to grow among the weeds and continue to grow to form a forest 4. As older trees dies, they are replaced by different trees if the climate can support them ...
... 2. Either the wind blows seeds or insects carry seeds allowing new weeds to appear 3. Small trees (such as conifers may start to grow among the weeds and continue to grow to form a forest 4. As older trees dies, they are replaced by different trees if the climate can support them ...
printer-friendly sample test questions
... C. parasitism because the insect harms the flower by removing the nectar. D. predation because the insect feeds on the flower and the flower dies. 12. Some plants form a relationship with bacteria. The bacteria are protected by the roots where they convert nitrogen gas to a usable form of nitrogen n ...
... C. parasitism because the insect harms the flower by removing the nectar. D. predation because the insect feeds on the flower and the flower dies. 12. Some plants form a relationship with bacteria. The bacteria are protected by the roots where they convert nitrogen gas to a usable form of nitrogen n ...
3rd Grade BIOLOGY ECOLOGY UNIT SAND DUNE SUCCESSION
... Pioneer species are hardy species which are the first to colonize previously disrupted or damaged ecosystems, beginning a chain of ecological succession that ultimately leads to a more bio-diverse steady-state ecosystem. Since uncolonized land may have thin, poor quality soils with few nutrients, pi ...
... Pioneer species are hardy species which are the first to colonize previously disrupted or damaged ecosystems, beginning a chain of ecological succession that ultimately leads to a more bio-diverse steady-state ecosystem. Since uncolonized land may have thin, poor quality soils with few nutrients, pi ...
Chp 14 Ecosystems
... Population density is the number of individuals that live in a defined area. • Population density is a measurement of the number of individuals living in a defined space. • Scientists can calculate population density. ...
... Population density is the number of individuals that live in a defined area. • Population density is a measurement of the number of individuals living in a defined space. • Scientists can calculate population density. ...
Learning Guide: Ecology 1 Behavior
... 3. Provide examples of mutualism and parasitism, and explain how your examples fit those definitions. 4. Why are ecologists unsettled on whether or not there are any truly commensal interactions among organisms? 5. Explain the concept of facilitation. Provide an example facilitator species and why i ...
... 3. Provide examples of mutualism and parasitism, and explain how your examples fit those definitions. 4. Why are ecologists unsettled on whether or not there are any truly commensal interactions among organisms? 5. Explain the concept of facilitation. Provide an example facilitator species and why i ...
Biome Notes - Science Done Wright
... % GE = ( Prod(lepoards) / Cons(leopards) ) * 100 • Consumption(leopards) = 14,800 kJ/m2/yr of duiker % GE = ( 500 kJ/m2/yr / 14,800 kJ/m2/yr ) * 100 • Production(leopards) = 500 kJ/m2/yr % GE = 3.38% ...
... % GE = ( Prod(lepoards) / Cons(leopards) ) * 100 • Consumption(leopards) = 14,800 kJ/m2/yr of duiker % GE = ( 500 kJ/m2/yr / 14,800 kJ/m2/yr ) * 100 • Production(leopards) = 500 kJ/m2/yr % GE = 3.38% ...
Slide 1
... % GE = ( Prod(lepoards) / Cons(leopards) ) * 100 • Consumption(leopards) = 14,800 kJ/m2/yr of duiker % GE = ( 500 kJ/m2/yr / 14,800 kJ/m2/yr ) * 100 • Production(leopards) = 500 kJ/m2/yr % GE = 3.38% ...
... % GE = ( Prod(lepoards) / Cons(leopards) ) * 100 • Consumption(leopards) = 14,800 kJ/m2/yr of duiker % GE = ( 500 kJ/m2/yr / 14,800 kJ/m2/yr ) * 100 • Production(leopards) = 500 kJ/m2/yr % GE = 3.38% ...
Community Ecology
... – Tightly woven into the fabric of the food web – The species that is the very strongest interactor ...
... – Tightly woven into the fabric of the food web – The species that is the very strongest interactor ...
Benchmark SC.912.L.17.5
... • Students will use data and information about population dynamics, abiotic factors, and/or biotic factors to explain and/or analyze a change in carrying capacity and its effect on population size in an ecosystem. • Students will assess the reliability of sources of information according to ...
... • Students will use data and information about population dynamics, abiotic factors, and/or biotic factors to explain and/or analyze a change in carrying capacity and its effect on population size in an ecosystem. • Students will assess the reliability of sources of information according to ...
Populations
... http://www.public.iastate.edu/~bsbowen/ZOOL-EEOB507/images/predprey-cheetahgazelle.jpg; http://www.bigfoto.com/themes/closeup/thorn-photo_if.jpg; http://www.ndpteachers.org/perit/Tapeworm%5B1%5D.JPG ...
... http://www.public.iastate.edu/~bsbowen/ZOOL-EEOB507/images/predprey-cheetahgazelle.jpg; http://www.bigfoto.com/themes/closeup/thorn-photo_if.jpg; http://www.ndpteachers.org/perit/Tapeworm%5B1%5D.JPG ...
Restoration of degraded hill land in South China
... indicated the importance of light in late succession. When forest canopy closed, understory vegetation would shift from heliophilous to mesophytes and shade-tolerant species. A common observation in both plantations and grassland was that few native tree saplings were established.. The comparison of ...
... indicated the importance of light in late succession. When forest canopy closed, understory vegetation would shift from heliophilous to mesophytes and shade-tolerant species. A common observation in both plantations and grassland was that few native tree saplings were established.. The comparison of ...
Biology 1407 Notes Exam 5 - Ecology Ch 34, 37, 38 Ecology
... - as these first species live and die the environment becomes modified, soil begins to form, and other species are able to become established. - secondary succession begins after moderate disturbance in which the soil is intact (fires, floods, etc.) - species diversity increases, community becomes m ...
... - as these first species live and die the environment becomes modified, soil begins to form, and other species are able to become established. - secondary succession begins after moderate disturbance in which the soil is intact (fires, floods, etc.) - species diversity increases, community becomes m ...
Ecological succession
Ecological succession is the observed process of change in the species structure of an ecological community over time. The time scale can be decades (for example, after a wildfire), or even millions of years after a mass extinction.The community begins with relatively few pioneering plants and animals and develops through increasing complexity until it becomes stable or self-perpetuating as a climax community. The ʺengineʺ of succession, the cause of ecosystem change, is the impact of established species upon their own environments. A consequence of living is the sometimes subtle and sometimes overt alteration of one's own environment.It is a phenomenon or process by which an ecological community undergoes more or less orderly and predictable changes following a disturbance or the initial colonization of a new habitat. Succession may be initiated either by formation of new, unoccupied habitat, such as from a lava flow or a severe landslide, or by some form of disturbance of a community, such as from a fire, severe windthrow, or logging. Succession that begins in new habitats, uninfluenced by pre-existing communities is called primary succession, whereas succession that follows disruption of a pre-existing community is called secondary succession.Succession was among the first theories advanced in ecology. The study of succession remains at the core of ecological science. Ecological succession was first documented in the Indiana Dunes of Northwest Indiana which led to efforts to preserve the Indiana Dunes. Exhibits on ecological succession are displayed in the Hour Glass, a museum in Ogden Dunes.