4. Population Dynamics new1
... unlimited resources is intrinsic rate of increase (r) High (r) (1)reproduce early in life, (2)short generation time, (3)multiple reproductive events, (4)many offspring each time BUT – no population can grow indefinitely Always limits on population growth in nature ...
... unlimited resources is intrinsic rate of increase (r) High (r) (1)reproduce early in life, (2)short generation time, (3)multiple reproductive events, (4)many offspring each time BUT – no population can grow indefinitely Always limits on population growth in nature ...
Population Biology
... 1) population growth rate (r) - combines survivorship and natality (births) into an instantaneous growth rate. It is analogous to the interest rate on your bank account (if the bank compounded instantaneously). However, no bank compounds instantaneously; the best available is daily compounding. 2) ...
... 1) population growth rate (r) - combines survivorship and natality (births) into an instantaneous growth rate. It is analogous to the interest rate on your bank account (if the bank compounded instantaneously). However, no bank compounds instantaneously; the best available is daily compounding. 2) ...
Unit Test: Ecology/Weather
... 13. Which of the following includes only abiotic features? a) air, water, deer, soil b) air, water, grass, soil c) grass, deer, rabbit, tree d) wind, temperature, light, water 14. Which list of terms is in the correct order, from simplest to most complex? a) species, community, population, ecosystem ...
... 13. Which of the following includes only abiotic features? a) air, water, deer, soil b) air, water, grass, soil c) grass, deer, rabbit, tree d) wind, temperature, light, water 14. Which list of terms is in the correct order, from simplest to most complex? a) species, community, population, ecosystem ...
國立臺南大學 生態科學與技術學系 生態學期中考題 (A 卷)
... (D) endomycorrhizae (E) supramycorrhizae 7. Which of the following statements about the evolution of mutualisms and commensalisms is correct? (A) Host-parasite relationships can evolve into commensalisms (B) Host-parasite relationships can evolve into mutualisms (C) Parasites and hosts often coevolv ...
... (D) endomycorrhizae (E) supramycorrhizae 7. Which of the following statements about the evolution of mutualisms and commensalisms is correct? (A) Host-parasite relationships can evolve into commensalisms (B) Host-parasite relationships can evolve into mutualisms (C) Parasites and hosts often coevolv ...
Activity 2: Interactions Name: PSI Biology Competition Competition
... Competition occurs when organisms try to obtain the same resources at the same place at the same time. Competition takes place when there is resource limitation in an ecosystem. That is, when there is not enough of a particular resource (food, shelter, water etc) to meet the needs of all organisms. ...
... Competition occurs when organisms try to obtain the same resources at the same place at the same time. Competition takes place when there is resource limitation in an ecosystem. That is, when there is not enough of a particular resource (food, shelter, water etc) to meet the needs of all organisms. ...
www.njctl.org Biology Ecology Activity 2: Interactions Name: PSI
... Competition occurs when organisms try to obtain the same resources at the same place at the same time. Competition takes place when there is resource limitation in an ecosystem. That is, when there is not enough of a particular resource (food, shelter, water etc) to meet the needs of all organisms. ...
... Competition occurs when organisms try to obtain the same resources at the same place at the same time. Competition takes place when there is resource limitation in an ecosystem. That is, when there is not enough of a particular resource (food, shelter, water etc) to meet the needs of all organisms. ...
An Organism`s Niche
... • It includes their physical home, the environmental factors necessary for survival, and all interactions with other organisms ...
... • It includes their physical home, the environmental factors necessary for survival, and all interactions with other organisms ...
Population Growth
... Ex. A population of ducks in a pond may have a low density, while fish and other animals in the same pond community may have higher densities. ...
... Ex. A population of ducks in a pond may have a low density, while fish and other animals in the same pond community may have higher densities. ...
Chapter4 powerpoint
... other species – As a result, natural communities rarely have niches that overlap ...
... other species – As a result, natural communities rarely have niches that overlap ...
Food Web and Food ChainNotes
... The Energy pyramid show how energy moves throughout the varying levels in a food chain. Producers are considered to be 100% energy efficient. This is because plants make sugar for energy production in the process of photosynthesis. This set of organism makes up the largest biomass (Living Material) ...
... The Energy pyramid show how energy moves throughout the varying levels in a food chain. Producers are considered to be 100% energy efficient. This is because plants make sugar for energy production in the process of photosynthesis. This set of organism makes up the largest biomass (Living Material) ...
Community Interactions Notes
... as endangered on the World Conservation Union's Red List of Threatened Species—and which may one day make captive births crucial to the species's survival. http://news.nationalgeographic.com/news/2005/04/0419_050419_ayeaye.html ...
... as endangered on the World Conservation Union's Red List of Threatened Species—and which may one day make captive births crucial to the species's survival. http://news.nationalgeographic.com/news/2005/04/0419_050419_ayeaye.html ...
Community Community Development
... Succession - Temporal Patterns • Initial stages - rapid turnover of species • Later stages - slow turnover • Fig. 22.12 ...
... Succession - Temporal Patterns • Initial stages - rapid turnover of species • Later stages - slow turnover • Fig. 22.12 ...
Population Growth
... • Definition: a group of individuals of the same species living in a particular area at the same time ...
... • Definition: a group of individuals of the same species living in a particular area at the same time ...
Introduction to Ecology
... • Dominant species – most abundant or highest biomass – Ex. American Chestnut was dominant before 1910, but chestnut blight killed all in N. America – Invasive species can become dominant • Keystone species – a predator that makes an unusually strong impact on community structure – Keystone predato ...
... • Dominant species – most abundant or highest biomass – Ex. American Chestnut was dominant before 1910, but chestnut blight killed all in N. America – Invasive species can become dominant • Keystone species – a predator that makes an unusually strong impact on community structure – Keystone predato ...
PowerPoint Template
... Carrying capacity (负载能力) The number of organisms of one species that an environment can support indefinitely is its carrying capacity When a population overshoots the carrying capacity, then limiting factors may come into effect ...
... Carrying capacity (负载能力) The number of organisms of one species that an environment can support indefinitely is its carrying capacity When a population overshoots the carrying capacity, then limiting factors may come into effect ...
Biology Chapter 4- Population Biology
... population size, whereas global human population growth rate has a positive relationship. • Human population growth rate has been growing more than exponentially. • Limited resources eventually will cause ...
... population size, whereas global human population growth rate has a positive relationship. • Human population growth rate has been growing more than exponentially. • Limited resources eventually will cause ...
14.2 Community Interactions
... share a particular territory with males of different bird species,but will not tolerate another male of its own species in the same area) • Interspecific competition: occurs when two different species compete for a limited resource, such as space. (ex. In your lawn: grass, dandelions, and other plan ...
... share a particular territory with males of different bird species,but will not tolerate another male of its own species in the same area) • Interspecific competition: occurs when two different species compete for a limited resource, such as space. (ex. In your lawn: grass, dandelions, and other plan ...
1.1 Biotic and Abiotic Factors in Ecosystems (sec 2.1 pg 21-24)
... as well as the physical environment in which the organisms live ...
... as well as the physical environment in which the organisms live ...