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Conservation of Biodiversity and Wildlife
Conservation of Biodiversity and Wildlife

... pleasure and should be banned.  It should be allowed when there is a valid reason such as an animal posing grave danger to people or other animals in that area. ...
Ecology - My eCoach
Ecology - My eCoach

... the end of the Devonian Period, may or may not have been the result of global climate change. 19% of families lost.  Third major Extinction (c. 245 mya): Scenarios explaining what happened at the greatest mass extinction event of them all (so far, at least!) at the end of the Permian Period have be ...
Ecology Facts Quiz – Week 3 Name
Ecology Facts Quiz – Week 3 Name

... competing for. Competition is the struggle between organisms to survive as they attempt to use the same limited resource. The four things that all living organisms need are food, water, shelter, and space so any two organisms could compete for these four things. 3. In 1976 Milliard and Linda Fuller ...
Chapter 3 - State of New Jersey
Chapter 3 - State of New Jersey

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04populations2 3564KB Nov 01 2012 07:59:58 AM
04populations2 3564KB Nov 01 2012 07:59:58 AM

... unlimited, though. • As population rises, resources decline. • If the growth is too rapid, resources are rapidly depleted and a population crash can occur • This pattern occurs often with many populations (including humans) • For example... ...
Top 58 Ecology Facts 1. A food chain is a series of events in which
Top 58 Ecology Facts 1. A food chain is a series of events in which

... 4. A niche is the role an organism plays in its habitat, or how it makes a living. 5. A predator is the organism that does the killing in a predation interaction. 6. Prey is an organism that is killed and eaten by another organism. 7. A limiting factor is an environmental factor that prevents a popu ...
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Factors that affect populations

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Conservation - UMK CARNIVORES 3
Conservation - UMK CARNIVORES 3

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Ecological Relationships
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Invasive Species Game – Lesson Plan
Invasive Species Game – Lesson Plan

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Chapter 7

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Human interaction with the natural world The importance of
Human interaction with the natural world The importance of

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Ecology Part 3
Ecology Part 3

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From ecological aspect - 2010 Sophomore Composition

... 1. Provides nesting ground for endangered species like loggerhead turtles. 2. It has the richest faunal biodiversity on the planet. 3. Reefs generate a variety of seafood products like fish, mussels(貽貝), crustaceans, sea cucumbers and seaweeds… Reef-related fisheries constitute approximately 9-12% o ...
Species and Populations
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...  An organisms “occupation” or “job”. Its relationship to its food and predators.  Describes the particular set of abiotic and biotic conditions and resources to which an organism or population responds  Example: Small fish in a coral reef share the same habitat, but each species has a different n ...
Relating Foraging Behavior to Wildlife Management
Relating Foraging Behavior to Wildlife Management

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APES-Unit #3- Study Guide
APES-Unit #3- Study Guide

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... food, books and paper, buildings, clothing and medicine. The natural resources from which these things come from are critical for our survival and economic well being Healthy ecosystems provide “essential survival services" like oxygen production, nutrient recycling, and climate control, all of whic ...
Genetic diversity - Pine Plains Central School District
Genetic diversity - Pine Plains Central School District

... Preserving Biodiversity Hot Spots • A biodiversity hot spot is a relatively small area with a great concentration of endemic species and many endangered and threatened species • Biodiversity hot spots are good choices for nature reserves, but identifying them is not always easy • Designation of hot ...
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Murray hardyhead - NSW Department of Primary Industries

... permit, licence or other appropriate approval. Significant penalties apply. For critically endangered species, these penalties can include fines of up to $220,000 and up to 2 years in prison. There can also be significant penalties for causing damage to the habitat of a threatened species without ap ...
The history of life is punctuated by mass extinction
The history of life is punctuated by mass extinction

... • The formation of Pangaea surely had tremendous environmental impacts that reshaped biological diversity by causing extinctions and providing new opportunities for taxonomic groups that survived the crisis. ...
Relating Foraging Behavior to Wildlife Management
Relating Foraging Behavior to Wildlife Management

... going extinct in tropical forests alone (Wilson 1992) – This present rate is 10,000x greater than background rate through geologic time (Nott et al. 1995). ...
Species Richness: The number of species present in a community
Species Richness: The number of species present in a community

... eventually becomes extinct. Factors of background extinction include gradual changes in temperature, humidity, predator-prey relationships, and tectonic plate movements. It is estimated that the average species stays around for 4 -22million years before it becomes extinct and that 99.9 of all the sp ...
ENVI 30 Environmental Issues
ENVI 30 Environmental Issues

... or in other major habitats, for the simple reason that we do not know the numbers of species originally present” ...
Ecological Succession Worksheet
Ecological Succession Worksheet

... two ecosystems into sequence. You will also describe changes in an ecosystem and make predictions about changes that will take place from one stage of succession to another. The evolution of a body of water from a lake to a marsh can last for thousands of years. The process cannot be observed direct ...
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Overexploitation



Overexploitation, also called overharvesting, refers to harvesting a renewable resource to the point of diminishing returns. Sustained overexploitation can lead to the destruction of the resource. The term applies to natural resources such as: wild medicinal plants, grazing pastures, game animals, fish stocks, forests, and water aquifers.In ecology, overexploitation describes one of the five main activities threatening global biodiversity. Ecologists use the term to describe populations that are harvested at a rate that is unsustainable, given their natural rates of mortality and capacities for reproduction. This can result in extinction at the population level and even extinction of whole species. In conservation biology the term is usually used in the context of human economic activity that involves the taking of biological resources, or organisms, in larger numbers than their populations can withstand. The term is also used and defined somewhat differently in fisheries, hydrology and natural resource management.Overexploitation can lead to resource destruction, including extinctions. However it is also possible for overexploitation to be sustainable, as discussed below in the section on fisheries. In the context of fishing, the term overfishing can be used instead of overexploitation, as can overgrazing in stock management, overlogging in forest management, overdrafting in aquifer management, and endangered species in species monitoring. Overexploitation is not an activity limited to humans. Introduced predators and herbivores, for example, can overexploit native flora and fauna.
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