PPT - kimscience.com
... Energy flow into and out of each trophic level in a food chain can be represented on a diagram using arrows of different sizes to represent the different amounts of energy lost from particular levels. ...
... Energy flow into and out of each trophic level in a food chain can be represented on a diagram using arrows of different sizes to represent the different amounts of energy lost from particular levels. ...
Invasive Species and Food Security in the Pacific
... after eradication is achieved. This option is used if prevention measures are not successful and invasive species do get past biosecurity checks. Continued surveillance is required to ensure that re-invasion does not occur. Control is the most expensive management method. This is the least preferred ...
... after eradication is achieved. This option is used if prevention measures are not successful and invasive species do get past biosecurity checks. Continued surveillance is required to ensure that re-invasion does not occur. Control is the most expensive management method. This is the least preferred ...
Community ecology from a functional perspective
... similar niche (say, similar climatic conditions) become available in both locations, one of the species is likely to fill that niche. Thus, as time passes, the adaptations that make the species successful in that niche in that particular environment add up producing similar traits for two species th ...
... similar niche (say, similar climatic conditions) become available in both locations, one of the species is likely to fill that niche. Thus, as time passes, the adaptations that make the species successful in that niche in that particular environment add up producing similar traits for two species th ...
The fusion of behavioral ecology and ecology
... birds. The abundances of food and of predators change in time and space. The predictions of the simple models did not fit because rest of the birds’ ecology can override the pressures of the foraging–vigilance trade-off. The essence of the standard evolutionary argument in behavioral ecology is that ...
... birds. The abundances of food and of predators change in time and space. The predictions of the simple models did not fit because rest of the birds’ ecology can override the pressures of the foraging–vigilance trade-off. The essence of the standard evolutionary argument in behavioral ecology is that ...
apex predators enable coexistence
... weak, species can irrupt in both their native and introduced regions (Box 2), and co-occurring natives and nonnatives that share similar trophic levels or functional roles can irrupt simultaneously (Box 3). The ensuing harmful effects of natives and non-natives alike are a result of high population ...
... weak, species can irrupt in both their native and introduced regions (Box 2), and co-occurring natives and nonnatives that share similar trophic levels or functional roles can irrupt simultaneously (Box 3). The ensuing harmful effects of natives and non-natives alike are a result of high population ...
Ecological Succession page 146
... Note—Because other students are going to do the activity after you, be sure to put all the materials at the station back as you found them. Sometimes there will be materials that need to be renewed or replaced. If you need assistance or have any ...
... Note—Because other students are going to do the activity after you, be sure to put all the materials at the station back as you found them. Sometimes there will be materials that need to be renewed or replaced. If you need assistance or have any ...
Plant Ecology
... Growth by the population results in the uptake of resources which are incorporated into standing biomass. This in turn results in the (2) decrease of available resources in the environment. This process continues until there is a (3) dynamic balance between resource uptake due to growth and resource ...
... Growth by the population results in the uptake of resources which are incorporated into standing biomass. This in turn results in the (2) decrease of available resources in the environment. This process continues until there is a (3) dynamic balance between resource uptake due to growth and resource ...
Biodiversity and the exotic species threat
... Ecologist Gordian Orians coined the term "Homogecene" for the modem era in which humans are tending to homogenize the world's flora and fauna through transport across once insurmountable barriers. Much of the transport is purposeful: Reichard and Campbell (1996) reported that, of235 invasive woody p ...
... Ecologist Gordian Orians coined the term "Homogecene" for the modem era in which humans are tending to homogenize the world's flora and fauna through transport across once insurmountable barriers. Much of the transport is purposeful: Reichard and Campbell (1996) reported that, of235 invasive woody p ...
Chapter 10 - Montgomery County Schools
... Pedro River in Arizona after 10 years of banning grazing and off-road vehicles. Figure 10-22 ...
... Pedro River in Arizona after 10 years of banning grazing and off-road vehicles. Figure 10-22 ...
Conservation Biology and Global Change
... The devastating zebra mussel was accidentally introduced into the Great Lakes of North America in 1988, most likely in the ballast water of ships arriving from Europe. o Zebra mussels are feeder-feeders that form dense colonies. They have extensively disrupted freshwater ecosystems, threatening nati ...
... The devastating zebra mussel was accidentally introduced into the Great Lakes of North America in 1988, most likely in the ballast water of ships arriving from Europe. o Zebra mussels are feeder-feeders that form dense colonies. They have extensively disrupted freshwater ecosystems, threatening nati ...
Ecology glossary
... Balanced preference A preference by a consumer for food items based on the need of the consumers to obtain a balanced diet of complementary food items. Basic reproductive rate (R0) The average number of offspring produced by individuals in a population over the course of their life. Benthic communit ...
... Balanced preference A preference by a consumer for food items based on the need of the consumers to obtain a balanced diet of complementary food items. Basic reproductive rate (R0) The average number of offspring produced by individuals in a population over the course of their life. Benthic communit ...
Ecological Succession Worksheet
... forest habitat so much that some species cannot survive and others can thrive. The process of one community replacing another as a result of changing abiotic and biotic factors is called ecological succession. How does soil form in primary succession? There are two types of ecological succession – p ...
... forest habitat so much that some species cannot survive and others can thrive. The process of one community replacing another as a result of changing abiotic and biotic factors is called ecological succession. How does soil form in primary succession? There are two types of ecological succession – p ...
Sandy, Standard Assessment-Ecosystems and
... 5. Which of the following would NOT complete this sentence: Phytoplankton __________________. A. are free-floating organisms B. are unicellular C. live only in saltwater environments D. are fed on by zooplankton 6. Ecologists group Earth’s diverse environments into: A. Niches B. Biomes C. Classes D. ...
... 5. Which of the following would NOT complete this sentence: Phytoplankton __________________. A. are free-floating organisms B. are unicellular C. live only in saltwater environments D. are fed on by zooplankton 6. Ecologists group Earth’s diverse environments into: A. Niches B. Biomes C. Classes D. ...
4 Scientific Models and Knowledge
... How Are Sizes Shown in Models? Imagine that you see a model of your school with a new addition for a swimming pool. In the model, the building that will house the swimming pool is the same size as the cafeteria. You expect that a large pool will be built. However, when the addition is finished, the ...
... How Are Sizes Shown in Models? Imagine that you see a model of your school with a new addition for a swimming pool. In the model, the building that will house the swimming pool is the same size as the cafeteria. You expect that a large pool will be built. However, when the addition is finished, the ...
Extinction and Vulnerability to Extinction
... • Certainly an underestimate because all species are not described • Corrections made by using the best-known groups of species ...
... • Certainly an underestimate because all species are not described • Corrections made by using the best-known groups of species ...
Ecological Importance of mangrove Habitat
... Mangrove trees are an indigenous species to Florida and a major contributor to the state's marine environment. The mangrove tree is a halophyte, a plant that thrives in salty conditions. It has the ability to grow where no other tree can, thereby making significant contributions that benefit the env ...
... Mangrove trees are an indigenous species to Florida and a major contributor to the state's marine environment. The mangrove tree is a halophyte, a plant that thrives in salty conditions. It has the ability to grow where no other tree can, thereby making significant contributions that benefit the env ...
Marine Ecology 2009, final Lecture 5 pred
... Effects of predation on morphology, distribution and abundance 2. Decreases in overall diversity – if predators are very efficient at removing prey, they drive populations to extinction which reduces diversity 3. Increase in diversity – in simple systems with few prey species, one of which is a dom ...
... Effects of predation on morphology, distribution and abundance 2. Decreases in overall diversity – if predators are very efficient at removing prey, they drive populations to extinction which reduces diversity 3. Increase in diversity – in simple systems with few prey species, one of which is a dom ...
15 Biodiversity in Ecosystems Experiment PRELIMINARY ACTIVITY FOR
... have few organisms, few interactions, and are often fragile. All ecosystems, whether diverse or sparse, involve an intimate interaction of living things with their abiotic environment. Biodiversity implies variety, and variety in an ecosystem often ensures a greater chance of survival in a changing ...
... have few organisms, few interactions, and are often fragile. All ecosystems, whether diverse or sparse, involve an intimate interaction of living things with their abiotic environment. Biodiversity implies variety, and variety in an ecosystem often ensures a greater chance of survival in a changing ...
LECTURE 17 COMMUNITY STRUCTURE
... that is, from one habitat type to another. a. Allows for accidentals and for species that have ranges that are broad enough to overlap. 5. Implicit in this viewpoint is that these associations among the species in the community have reached equilibrium. B. The Continuum View 1. H.A. Gleason believed ...
... that is, from one habitat type to another. a. Allows for accidentals and for species that have ranges that are broad enough to overlap. 5. Implicit in this viewpoint is that these associations among the species in the community have reached equilibrium. B. The Continuum View 1. H.A. Gleason believed ...
Natural Regulation Natural Regulation Biotic Factors Climate
... Is it applicable to vertebrates? ...
... Is it applicable to vertebrates? ...
Intraspecific competition
... very similar species. By examining both the costs and the benefits, we show that harshness alone does not lessen the importance of species interactions or limit their role in community structure. Species coexistence requires niche differences, and harshness does not in itself make coexistence more l ...
... very similar species. By examining both the costs and the benefits, we show that harshness alone does not lessen the importance of species interactions or limit their role in community structure. Species coexistence requires niche differences, and harshness does not in itself make coexistence more l ...
Chapter 44 book - Castle High School
... switch to other prey species. • They may invest in more defenses—low density means more resources per capita. ...
... switch to other prey species. • They may invest in more defenses—low density means more resources per capita. ...
BM2 Review Guide Answer Key
... insects, snails, frogs, and salamanders make this their home Limnetic zone – open waters away from shore; occupied by phytoplankton, zooplankton, fish, etc. Algae are the main producers (because they don’t need roots in soil) and sunfish feed on algae and insects while catfish scavenge their meals ...
... insects, snails, frogs, and salamanders make this their home Limnetic zone – open waters away from shore; occupied by phytoplankton, zooplankton, fish, etc. Algae are the main producers (because they don’t need roots in soil) and sunfish feed on algae and insects while catfish scavenge their meals ...
worksheet interaction between species
... 1. A relationship in which two organisms live together; one benefits while the other is Unaffected 2. A group of organisms, all of the same species that live in the same area 3. A relationship between two organisms in which one is harmed and the other benefits 5. An organism that derives nutrition f ...
... 1. A relationship in which two organisms live together; one benefits while the other is Unaffected 2. A group of organisms, all of the same species that live in the same area 3. A relationship between two organisms in which one is harmed and the other benefits 5. An organism that derives nutrition f ...
Theoretical ecology
Theoretical ecology is the scientific discipline devoted to the study of ecological systems using theoretical methods such as simple conceptual models, mathematical models, computational simulations, and advanced data analysis. Effective models improve understanding of the natural world by revealing how the dynamics of species populations are often based on fundamental biological conditions and processes. Further, the field aims to unify a diverse range of empirical observations by assuming that common, mechanistic processes generate observable phenomena across species and ecological environments. Based on biologically realistic assumptions, theoretical ecologists are able to uncover novel, non-intuitive insights about natural processes. Theoretical results are often verified by empirical and observational studies, revealing the power of theoretical methods in both predicting and understanding the noisy, diverse biological world.The field is broad and includes foundations in applied mathematics, computer science, biology, statistical physics, genetics, chemistry, evolution, and conservation biology. Theoretical ecology aims to explain a diverse range of phenomena in the life sciences, such as population growth and dynamics, fisheries, competition, evolutionary theory, epidemiology, animal behavior and group dynamics, food webs, ecosystems, spatial ecology, and the effects of climate change.Theoretical ecology has further benefited from the advent of fast computing power, allowing the analysis and visualization of large-scale computational simulations of ecological phenomena. Importantly, these modern tools provide quantitative predictions about the effects of human induced environmental change on a diverse variety of ecological phenomena, such as: species invasions, climate change, the effect of fishing and hunting on food network stability, and the global carbon cycle.