• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
ECOLOGY the study of the interactions of living things and non
ECOLOGY the study of the interactions of living things and non

... due to no ground cover. 7. Animals would starve and die. 8. The land may be permanently changed Species that do not Most exotic species introduced into Non-native naturally occur in an North America do not become (exotic) species ecosystem. invasive. Many of the species our NO NATURAL civilization r ...
Practice Test `10
Practice Test `10

... _____54. Which of the following continents has the lowest number of biodiversity hotspots? A) North America B) South America C) Africa D) Asia/Indonesia _____55. Which of the following is not a major cause of rainforest destruction? A) urban sprawl B) agriculture C) fires D) road building E) wood cu ...
Commensalism
Commensalism

... Moss growing on trees benefits by being raised above forest floor competition, while the tree doesn't get much out of the deal either way. A desert holly shrub provides shade for young creosote bush. A cactus wren builds its nest in a cholla cactus to protect its young from predators such as raven. ...
Populations and Communities Population Growth
Populations and Communities Population Growth

... Population: group of the same species that live in the same area in a given time. If living conditions are IDEAL, growth will be exponential… there is nothing to inhibit growth! In reality – exponential growth is not sustainable – there will always be a limiting factor – Can you think of an exceptio ...
File - Ms. Ortiz Honors Biology Course
File - Ms. Ortiz Honors Biology Course

... populations. Demographers try to predict how human populations will change over time. Over the past century, population growth in developed countries slowed. As death rates dropped, birthrates dropped also. Demographers call this shift the demographic transition. Most people live in countries that h ...
Organisms - Piscataway High School
Organisms - Piscataway High School

... Land/water/Energy resources used and Needed to dispose of generated wastes (in relation to time) ...
Fishing Techniques
Fishing Techniques

...  Additionally, most aquaculture fish are still fed fish meal made from wildcaught ocean species such as herring and anchovies, which can place a stain on the wild fish populations that would typically eat them in their native habitat  If farmed fish escape into ecosystems where they are not native ...
Ecology notes - Pierce Public Schools
Ecology notes - Pierce Public Schools

... Census taken every 10 years Demography – study of human population size, density and distribution movement, and its birth and death rates History: ...
Ecology Review Sheet. KEY
Ecology Review Sheet. KEY

... 10. What is the 10% law? Energy available at each trophic level is about 1/10 the energy available from the level below 11. As you move up the ecological pyramid what happens to the number of organisms and the amount of biomass (energy)? Does it increase or decrease? They both decrease 12. What orga ...
The Complexity of Life
The Complexity of Life

... • A group of individuals of the same species that occupy a particular area over a given interval of time are referred to as a population. • Take note that a population does not necessarily include all the individual members of a species and there can be multiple populations for each species. • For e ...
Chapter 12, lesson 1: Living Things and Nonliving
Chapter 12, lesson 1: Living Things and Nonliving

...  Habitat destruction too widespread  fewer animals reproduce  less number of that species.  Threatened = number of these animals than there used to be.  Endangered = of a certain species is left.  Extinct = all the members of a species are . Will never return. ...
File
File

... become invasive in a new habitat. • Invasive species (also called exotic species or nonnative species) are those that rapidly increase their populations due to lack of natural predators and/or parasites thereby giving it an advantage over native species. ...
Fisheries management should be based on sound
Fisheries management should be based on sound

... perfection, but our intervention and uneducated manipulation and use of habitats affects nature’s ability to cope with the extreme fluctuations in environmental and biological factors. If we was to take a look at a natural lake that is unmolested by fisheries practice we would find a perfect balance ...
FREE Sample Here
FREE Sample Here

... It is important not to extend food chain economy to political conclusions not justified by real conditions. The example of eating beef versus eating the grain that could be fed to beef to produce the biomass of meat is a useful teaching example. However, it is not possible to feed pure grain alone t ...
Biodiversity in a Changing World
Biodiversity in a Changing World

Ecology
Ecology

... •Biological diversity, or biodiversity, is the sum total of the genetically based variety of all organisms in the biosphere. •Ecosystem diversity includes the variety of habitats, communities, and ecological processes in the living world. •Species diversity is the number of different species in the ...
draft - Department of Natural Resources
draft - Department of Natural Resources

... members of other groups. Plants and animals are identified as belonging to a given species based on similar morphological, genetic and biochemical characteristics. Species diversity: the variety of species in an area. It includes not only the number of species in the area but also their relative abu ...
Ecology
Ecology

... •Biological diversity, or biodiversity, is the sum total of the genetically based variety of all organisms in the biosphere. •Ecosystem diversity includes the variety of habitats, communities, and ecological processes in the living world. •Species diversity is the number of different species in the ...
• I can: • State that a biome is a geographical region of the planet
• I can: • State that a biome is a geographical region of the planet

... reduce the body weight of the fish, making them less able to compete. State that an increase in temperature can reduce biodiversity, as fish enzymes do not work optimally. State that an increase in temperature can reduce fish biodiversity due to a lack of oxygen in the water. State that exploitation ...
Document
Document

... Some species of fish, wildlife and plants are now extinct “as a consequence of economic growth and development untempered by adequate concern and conservation.” ...
3. Why would a mimicry complex where a harmless species evolves
3. Why would a mimicry complex where a harmless species evolves

Draft Fisheries Plan Palmerston
Draft Fisheries Plan Palmerston

... maintain and to restore the island’s fisheries and resources. ...
Populations And Communities
Populations And Communities

... - Counting individuals in randomly selected areas and using the following proportion. Average number of individuals per section = Population size Area of a section ...
ecological principles - Central Dauphin School District
ecological principles - Central Dauphin School District

... • In 1987, the last wild condors were removed and placed with the remaining population in captivitythere were 26 • A captive breeding program is in effect and as of 2012 there were 405 birds (226 in wild, rest in zoos) • Scientists question if they had reached the critical number as all 27 of the f ...
2008, finat Lecture 14 Human Effects, Aug 04
2008, finat Lecture 14 Human Effects, Aug 04

... ballast tanks with water. Large ships often carry millions of gallons of ballast water. As a ship loads ballast it also loads many organisms. Ballast water is carried from one port to another, where the water may be discharged. ...
< 1 ... 161 162 163 164 165 166 167 168 169 ... 225 >

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.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report