Biodiversity - Alexander College
... variety and diversity of organisms in a given ecosystem. • There are many different kinds of biological organisms in different ecosystems. • E.g., a tropical rainforest ecosystem may contain thousands of different species of animals, plants, insects, bacteria, etc. ...
... variety and diversity of organisms in a given ecosystem. • There are many different kinds of biological organisms in different ecosystems. • E.g., a tropical rainforest ecosystem may contain thousands of different species of animals, plants, insects, bacteria, etc. ...
Biodiversity
... In Earth's 5.5 billion year history, there have been five major "mass extinctions" recorded in the fossil record, the most recent of which, 65 million years ago, killed the last of the true dinosaurs. Scholars believe that we are currently experiencing extinction rates rivaling or exceeding the rate ...
... In Earth's 5.5 billion year history, there have been five major "mass extinctions" recorded in the fossil record, the most recent of which, 65 million years ago, killed the last of the true dinosaurs. Scholars believe that we are currently experiencing extinction rates rivaling or exceeding the rate ...
Cornell Chap 3,4 - Santa Rosa Home
... - limiting factors: - carrying capacity: - logistical growth (3.17) Limit Factors - density dependent vs. - density independent ...
... - limiting factors: - carrying capacity: - logistical growth (3.17) Limit Factors - density dependent vs. - density independent ...
11_Bauer_Single Species Specialist Groups(Thu 9 Feb, 17.30
... Formed in Germany, keeps contact with ornithologists in whole range of species (ecology, conservation issues etc.); runs pan-European projects on regular basis, European-wide censuses every 10 years ...
... Formed in Germany, keeps contact with ornithologists in whole range of species (ecology, conservation issues etc.); runs pan-European projects on regular basis, European-wide censuses every 10 years ...
Extinction and Conservation
... – Pacific Salmon are very important ecologically and economically off the West Coast of North America. – Salmon species have experienced dramatic declines over the past few decades due to a variety of factors, many of which result from human habitat modification. – Hydroelectric dams have resulted ...
... – Pacific Salmon are very important ecologically and economically off the West Coast of North America. – Salmon species have experienced dramatic declines over the past few decades due to a variety of factors, many of which result from human habitat modification. – Hydroelectric dams have resulted ...
Invasive Animals in Florida - UF/IFAS Office of Conferences and
... How do nonindigenous species get introduced to new places? • Human mediated movement • Intentional vs. Accidental Introductions – Intentional introductions • These include species imported for: agriculture uses, ornamental plant trade, pet trade, hunting/fishing industry, industrial uses, pharmaceu ...
... How do nonindigenous species get introduced to new places? • Human mediated movement • Intentional vs. Accidental Introductions – Intentional introductions • These include species imported for: agriculture uses, ornamental plant trade, pet trade, hunting/fishing industry, industrial uses, pharmaceu ...
Community Interactions
... Definition: One organism (the predator) kills and eats another organism (the prey) Examples: Lions eating zebras, whales eating krill Connection to niche: An integral part of the food chain. What food is available to a predator effects where it can live, and what predators are around affects how an ...
... Definition: One organism (the predator) kills and eats another organism (the prey) Examples: Lions eating zebras, whales eating krill Connection to niche: An integral part of the food chain. What food is available to a predator effects where it can live, and what predators are around affects how an ...
Section 11.3(student copy)
... There is a tendency for characteristics to be more divergent in populations of two species that occupy the same geographical range than in populations of the same two species that ...
... There is a tendency for characteristics to be more divergent in populations of two species that occupy the same geographical range than in populations of the same two species that ...
Ch. 35: The Nervous System
... • What are the five ways species interact with each other? • How does competition effect species interactions? • Describe Predator-Prey Relationships and how those relationships creates a coevolution event? • What are three types of symbioses found in nature? ...
... • What are the five ways species interact with each other? • How does competition effect species interactions? • Describe Predator-Prey Relationships and how those relationships creates a coevolution event? • What are three types of symbioses found in nature? ...
Invasive Species Brochure
... not have the natural controls that a native plant has. Soon the nonnative plant takes over - first the garden and then, by propagating via the wind, through deep-set runners and by the cooperation of willing birds carrying the seeds to more distant places and even on the soles of our shoes. One of t ...
... not have the natural controls that a native plant has. Soon the nonnative plant takes over - first the garden and then, by propagating via the wind, through deep-set runners and by the cooperation of willing birds carrying the seeds to more distant places and even on the soles of our shoes. One of t ...
Document
... californianus) – The starfish can not eat large mussels, so the mussels have a size-related refuge from predation – This mussel can out-compete other invertebrates for space, but the starfish takes away that competitive edge. ...
... californianus) – The starfish can not eat large mussels, so the mussels have a size-related refuge from predation – This mussel can out-compete other invertebrates for space, but the starfish takes away that competitive edge. ...
The moral issue of species conservation
... Should single species conservation be a focus in future management decisions? Species conservation is often regarded as a primary objective in ecosystem management. However, is this concept of human intervention for the sake of maintaining an individual species a valid one? Are humans playing “god” ...
... Should single species conservation be a focus in future management decisions? Species conservation is often regarded as a primary objective in ecosystem management. However, is this concept of human intervention for the sake of maintaining an individual species a valid one? Are humans playing “god” ...
pest and disease control - Garden Earth Naturalist
... that has moved into a particular region that it is not native to. n Invasive Species – An exotic or a native species whose introduction causes harm to the environment or human health. ...
... that has moved into a particular region that it is not native to. n Invasive Species – An exotic or a native species whose introduction causes harm to the environment or human health. ...
Ecology Unit
... greenhouse gasses in the atmosphere trapping heat in the air that would otherwise escape ...
... greenhouse gasses in the atmosphere trapping heat in the air that would otherwise escape ...
3.1 How Changes in Ecosystems Occur Naturally • When an
... Many species on these islands are very similar to each other but different from species on the South American continent. There are _________ species of finches on the islands. Each is descended from a finch species from the _________________ Each species has unique characteristics that allow ...
... Many species on these islands are very similar to each other but different from species on the South American continent. There are _________ species of finches on the islands. Each is descended from a finch species from the _________________ Each species has unique characteristics that allow ...
Biological diversity - variety of life on the Earth. Ecosystems, Species
... Of the 30 – 100 million possible different species of living things, there are over 1.5 million species of animals and 350.000 species of plants that have been identified by biologists. The most successful life form seems to be the insect. The entire collection of living organisms, each with their o ...
... Of the 30 – 100 million possible different species of living things, there are over 1.5 million species of animals and 350.000 species of plants that have been identified by biologists. The most successful life form seems to be the insect. The entire collection of living organisms, each with their o ...
Speciation/Extinction Notes
... the benefit must outweigh the risk (benefit of passing on genes outweighs attracting predators with bright colors/displays) birds (peacock) ▫ may result in competition among males for access to females Ungulate rutting ...
... the benefit must outweigh the risk (benefit of passing on genes outweighs attracting predators with bright colors/displays) birds (peacock) ▫ may result in competition among males for access to females Ungulate rutting ...
Ecosystems and Living Organisms
... niche because of competition with another species (interspecific competition). No two organisms can occupy the same niche Coexistence is possible if niches are reduced Gause study ...
... niche because of competition with another species (interspecific competition). No two organisms can occupy the same niche Coexistence is possible if niches are reduced Gause study ...
chapter-7-powerpoint
... The Number of Species on Earth • No one knows the exact number • About 1.4 million – 1.8 million species have been identified and named • Insects and plants make up most of these species • Number will increase ...
... The Number of Species on Earth • No one knows the exact number • About 1.4 million – 1.8 million species have been identified and named • Insects and plants make up most of these species • Number will increase ...
Outline and important questions to know for the exam
... 9. What are some human activities that can alter the carbon and nitrogen cycle? 10. What is nitrification? 11. What are negative effects of human interference in the nitrogen cycle? 12. Where do carnivores get the majority of their nitrogen? 13. Where does most terrestrial phosphate come from? 14. W ...
... 9. What are some human activities that can alter the carbon and nitrogen cycle? 10. What is nitrification? 11. What are negative effects of human interference in the nitrogen cycle? 12. Where do carnivores get the majority of their nitrogen? 13. Where does most terrestrial phosphate come from? 14. W ...
an act of one organism feeding on another Example: A
... Competition when two species use the same resource For example they could be competing for food, water, and living space. ...
... Competition when two species use the same resource For example they could be competing for food, water, and living space. ...
Extinctions
... Extinctions have been occurring constantly at a low 'background rate', usually matched by the rate at which new species appear resulting in an overall increase in biodiversity A world without extinction would be really crowded!! ...
... Extinctions have been occurring constantly at a low 'background rate', usually matched by the rate at which new species appear resulting in an overall increase in biodiversity A world without extinction would be really crowded!! ...
Chapter 7 Community Ecology Core Case Study: American Alligator
... 19. List the 9 factors that affect frogs and other amphibians at various points in their life cycles. ...
... 19. List the 9 factors that affect frogs and other amphibians at various points in their life cycles. ...
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.