Marine Ecology 2009 final lecture 4 Competition
... The Niche Concept and Competition in Evolutionary Time • Niche - the role of a species in a community, defined in practice by measuring all possible resources used and tolerance limits • Niche Breadth - The amount of a resource used by an organism; this amount may change when new species are introd ...
... The Niche Concept and Competition in Evolutionary Time • Niche - the role of a species in a community, defined in practice by measuring all possible resources used and tolerance limits • Niche Breadth - The amount of a resource used by an organism; this amount may change when new species are introd ...
CH-4 Sect 4
... a. They generally weaken but do not kill their host. b. They obtain all or part of their nutritional needs from the host. c. They neither help nor harm the host. d. They are usually smaller than the host. 16. What is ecological succession? (pg 94-97)__________________________________________________ ...
... a. They generally weaken but do not kill their host. b. They obtain all or part of their nutritional needs from the host. c. They neither help nor harm the host. d. They are usually smaller than the host. 16. What is ecological succession? (pg 94-97)__________________________________________________ ...
Chapter 14 - FacStaff Home Page for CBU
... Chemicals could be released by plants as volatile compounds from leaves, exudates of the root system or by leaching from leaves and litter. Allelopathy plays a role in reducing success or survival of competing plants, and interfering with herbivory in various ways. In sponges, potentially competing ...
... Chemicals could be released by plants as volatile compounds from leaves, exudates of the root system or by leaching from leaves and litter. Allelopathy plays a role in reducing success or survival of competing plants, and interfering with herbivory in various ways. In sponges, potentially competing ...
Species Interactions
... itself affected by the association (i.e. it is not harmed or benefiting). Exploitation One species benefits at the expense of the other. Includes: 1. Predation: predator kills the prey outright. 2. Parasitism: parasite usually does not kill the host. 3. Herbivory: herbivore usually does not kill the ...
... itself affected by the association (i.e. it is not harmed or benefiting). Exploitation One species benefits at the expense of the other. Includes: 1. Predation: predator kills the prey outright. 2. Parasitism: parasite usually does not kill the host. 3. Herbivory: herbivore usually does not kill the ...
Ecology Final Notes
... o Evolution is more than just selection (chance, plasticity) o Mutations don’t always cause change in fitness so aren’t evolutionary mech. Lecture 4: Physiological Ecology I: Dealing with the physical environment - Conditions are infinite. Resources get used up. - Physical environment includes: Sal ...
... o Evolution is more than just selection (chance, plasticity) o Mutations don’t always cause change in fitness so aren’t evolutionary mech. Lecture 4: Physiological Ecology I: Dealing with the physical environment - Conditions are infinite. Resources get used up. - Physical environment includes: Sal ...
5.2 wkst
... Key Concepts An organism’s niche is affected by both its tolerance and competitive interactions. Predation, parasitism, and herbivory are interactions in which one species benefits, while the other is harmed. Mutualism and commensalism are relationships in which neither participant is harmed. ...
... Key Concepts An organism’s niche is affected by both its tolerance and competitive interactions. Predation, parasitism, and herbivory are interactions in which one species benefits, while the other is harmed. Mutualism and commensalism are relationships in which neither participant is harmed. ...
Examples of competition
... Trees compete for sunlight. Only tall plants that can obtain sunlight survive. Small plants that have germinated in spring do not receive much light in winter and are shaded by taller plants and therefore die (intra-specific). Cactus plants compete for water. They are not found very close togeth ...
... Trees compete for sunlight. Only tall plants that can obtain sunlight survive. Small plants that have germinated in spring do not receive much light in winter and are shaded by taller plants and therefore die (intra-specific). Cactus plants compete for water. They are not found very close togeth ...
Chapter 8 Summary - CarrollEnvironmentalScience
... In parasitism, the parasite benefits and the host is harmed. Mutualism benefits both species. Commensalism benefits one species and leaves the other unaffected. 8-5 Ecological Succession: Communities in Transition The two types of ecological succession are primary succession and secondary succession ...
... In parasitism, the parasite benefits and the host is harmed. Mutualism benefits both species. Commensalism benefits one species and leaves the other unaffected. 8-5 Ecological Succession: Communities in Transition The two types of ecological succession are primary succession and secondary succession ...
Sustainability of Ecosystems
... • Energy is what enables our bodies to perform the chemical reactions required for life. ...
... • Energy is what enables our bodies to perform the chemical reactions required for life. ...
Population Growth
... Limiting factors • Any factor that slows or stops the growth of a population • Determine the carrying capacity • Can be biotic or abiotic: availability of food or water, parasitism or disease, competition and predation, natural disasters such as floods or droughts ...
... Limiting factors • Any factor that slows or stops the growth of a population • Determine the carrying capacity • Can be biotic or abiotic: availability of food or water, parasitism or disease, competition and predation, natural disasters such as floods or droughts ...
Biodiversity, Species Interactions, and Population Control
... Many human activities have had detrimental effects of sea otter populations. Their low reproductive rate has limited their ability to increase in numbers. C. Rapidly growing populations typically reproduce early in life, have many offspring, and reproduce many times with short intervals between repr ...
... Many human activities have had detrimental effects of sea otter populations. Their low reproductive rate has limited their ability to increase in numbers. C. Rapidly growing populations typically reproduce early in life, have many offspring, and reproduce many times with short intervals between repr ...
Name: :__
... 30. How do fossils form and why are they important to evolutionary biologists? 31. What term describes the process by which a population becomes better suited to its environment? 32. What happens to two populations of the same species if they are separated from each other for a long time? 33. What a ...
... 30. How do fossils form and why are they important to evolutionary biologists? 31. What term describes the process by which a population becomes better suited to its environment? 32. What happens to two populations of the same species if they are separated from each other for a long time? 33. What a ...
Species Interactions
... Inference of species interactions on the landscape • If species interactions are important to plant species – Should be reflected in the spatial patterns of individuals (inter and intraspecific) • if mutualisms among plant species occur, should be a positive association they should occur closer t ...
... Inference of species interactions on the landscape • If species interactions are important to plant species – Should be reflected in the spatial patterns of individuals (inter and intraspecific) • if mutualisms among plant species occur, should be a positive association they should occur closer t ...
Organism And Population
... 4. Biomass is a more meaningful measure of population size. Explain with an example. Ans. (i) Population large Total number is not an easily adoptable measure. Counting takes long time or practically impossible (ii) There is no need to know the absolute population size for some investigations. (iii) ...
... 4. Biomass is a more meaningful measure of population size. Explain with an example. Ans. (i) Population large Total number is not an easily adoptable measure. Counting takes long time or practically impossible (ii) There is no need to know the absolute population size for some investigations. (iii) ...
ppt
... Inference of species interactions on the landscape • If species interactions are important to plant species – Should be reflected in the spatial patterns of individuals (inter and intraspecific) • if mutualisms among plant species occur, should be a positive association they should occur closer t ...
... Inference of species interactions on the landscape • If species interactions are important to plant species – Should be reflected in the spatial patterns of individuals (inter and intraspecific) • if mutualisms among plant species occur, should be a positive association they should occur closer t ...
Chapter 4 - FacStaff Home Page for CBU
... Individuals of a population vary from one another. Many more offspring are produced than will survive and reproduce. There is competition between the members of the population for needed resources. Those best adapted survive and reproduce. ...
... Individuals of a population vary from one another. Many more offspring are produced than will survive and reproduce. There is competition between the members of the population for needed resources. Those best adapted survive and reproduce. ...
Biodiversity, Species Interactions, and Population Control Chapter 5
... A noxious, or dangerous, organism (the model), equipped with a warning system such as conspicuous coloration, is mimicked by a harmless organism (the mimic). The mimic gains protection because predators mistake it for the model and leave it alone. ...
... A noxious, or dangerous, organism (the model), equipped with a warning system such as conspicuous coloration, is mimicked by a harmless organism (the mimic). The mimic gains protection because predators mistake it for the model and leave it alone. ...
1. Ecology is the study of the relationship of organisms to their
... e. A growing population eventually exhausts food or space; planktonic blooms and locusts outbreaks both stop when resources are exhausted. f. Among many resources, one will be depleted first; this is the limiting resource. g. The largest population that can be supported by the limited resource is th ...
... e. A growing population eventually exhausts food or space; planktonic blooms and locusts outbreaks both stop when resources are exhausted. f. Among many resources, one will be depleted first; this is the limiting resource. g. The largest population that can be supported by the limited resource is th ...
Ecological Communities
... a. Cougar and Deer: Extirpate cougars, deer populations explode. c. Cactus Moths: Cactoblastis moth from Argentina brought in to Australia to limit the spread of Opuntia cactus. Knocked the population back by 99%. e. Grazing mammals: Even grazing mammals can limit plant populations, as exclosure exp ...
... a. Cougar and Deer: Extirpate cougars, deer populations explode. c. Cactus Moths: Cactoblastis moth from Argentina brought in to Australia to limit the spread of Opuntia cactus. Knocked the population back by 99%. e. Grazing mammals: Even grazing mammals can limit plant populations, as exclosure exp ...
Population density
... predation – Low densities make it harder to find mates, but individuals enjoy plentiful resources and space ...
... predation – Low densities make it harder to find mates, but individuals enjoy plentiful resources and space ...
Ecology - Main Home
... • White flies have a 21 day life span • During their life span the female will lay approx. 120 eggs ...
... • White flies have a 21 day life span • During their life span the female will lay approx. 120 eggs ...
Chapter 50 - An Introduction to Ecology and the Biosphere The
... Disturbance and Succession A. Primary Succession: When there is not even soil left (glacier, ...
... Disturbance and Succession A. Primary Succession: When there is not even soil left (glacier, ...