biodiversity hotspot
... Species aren't evenly distributed around the planet Certain areas have large numbers of species and those found nowhere else Many of these are threatened by habitat loss and other human activities ...
... Species aren't evenly distributed around the planet Certain areas have large numbers of species and those found nowhere else Many of these are threatened by habitat loss and other human activities ...
Water Water is a vital ingredient for thriving plant and animal
... compete on a variety of levels. Individuals of the same species may compete for resources in intra-species competition. However, different species may also compete in order to establish new territory and so acquire new resources. The purple loosestrife is a plant introduced to the waterways of North ...
... compete on a variety of levels. Individuals of the same species may compete for resources in intra-species competition. However, different species may also compete in order to establish new territory and so acquire new resources. The purple loosestrife is a plant introduced to the waterways of North ...
The Economics of Biodiversity
... A synthesis of different sources suggests (OECD 2002, Pearce 1998, Barbier, Burgess and Folke 1995): The number of species presently living in the biosphere is not known; 1.75 million different species are described Regarding estimates of the total number the consensus appears to be in the region of ...
... A synthesis of different sources suggests (OECD 2002, Pearce 1998, Barbier, Burgess and Folke 1995): The number of species presently living in the biosphere is not known; 1.75 million different species are described Regarding estimates of the total number the consensus appears to be in the region of ...
Biodiversity
... Obligate – spends all their time shoaling or schooling and may become agitated when separated from the group (examples: tuna, herring, anchovy) Facultative – shoal only some of the time, perhaps only for reproductive ...
... Obligate – spends all their time shoaling or schooling and may become agitated when separated from the group (examples: tuna, herring, anchovy) Facultative – shoal only some of the time, perhaps only for reproductive ...
3.2 Interactions and Changes Occur in Ecosystems
... field on this same page (by the Check and Reflect.) Think about a situation where weather has affected ecosystems. What are some of your thoughts? ...
... field on this same page (by the Check and Reflect.) Think about a situation where weather has affected ecosystems. What are some of your thoughts? ...
Review resources for AP Environm
... Review resources for AP Environmental Science class notes and general resources | main review page | second semester A good case study that relates to much of what we have learned this year concerns the situation with the Island Fox. Learn more here. Here is a list of some terms/concepts to make sur ...
... Review resources for AP Environmental Science class notes and general resources | main review page | second semester A good case study that relates to much of what we have learned this year concerns the situation with the Island Fox. Learn more here. Here is a list of some terms/concepts to make sur ...
Appendix A: Pre/Post Test
... 1. The practice of raising fish and other water-dwelling organisms for food is called: A. overfishing. B. aquaculture. C. sustainable yielding. D. selective cutting. 2. The largest population that an environment can support is called its A. carrying capacity. B. limiting factor. C. birth rate. D. de ...
... 1. The practice of raising fish and other water-dwelling organisms for food is called: A. overfishing. B. aquaculture. C. sustainable yielding. D. selective cutting. 2. The largest population that an environment can support is called its A. carrying capacity. B. limiting factor. C. birth rate. D. de ...
Practice Exam 6 - Iowa State University
... d. They are found mostly in the interior of continents 38.) Which is true of the 6th mass extinction? a. Humans don’t have a role in this extinction b. Invasive species are the only ones to blame for this extinction c. Extinction rates are faster than before and faster than background extinction d. ...
... d. They are found mostly in the interior of continents 38.) Which is true of the 6th mass extinction? a. Humans don’t have a role in this extinction b. Invasive species are the only ones to blame for this extinction c. Extinction rates are faster than before and faster than background extinction d. ...
Unit 11-Ecology
... ◦ Species with narrow niches ◦ Koala bear (eats only leaves of eucalyptus tree) ...
... ◦ Species with narrow niches ◦ Koala bear (eats only leaves of eucalyptus tree) ...
Keystone Species
... interacts with its environment, and how it contributes to an ecosystem • Example: “The red fox's habitat might include forest edges, meadows and the bank of a river. The niche of the red fox is that of a predator which feeds on the small mammals, amphibians, insects, and fruit found in this habitat. ...
... interacts with its environment, and how it contributes to an ecosystem • Example: “The red fox's habitat might include forest edges, meadows and the bank of a river. The niche of the red fox is that of a predator which feeds on the small mammals, amphibians, insects, and fruit found in this habitat. ...
3.2 How Humans Influence Ecosystems
... degradation & contamination of water supplies. Many mining and resource exploitations require reclamation efforts. Reclamation attempts to reduce environmental impacts of exploitation, and tries to restore the original (or at least functional) habitats. ...
... degradation & contamination of water supplies. Many mining and resource exploitations require reclamation efforts. Reclamation attempts to reduce environmental impacts of exploitation, and tries to restore the original (or at least functional) habitats. ...
3.2 PPT
... degradation & contamination of water supplies. Many mining and resource exploitations require reclamation efforts. Reclamation attempts to reduce environmental impacts of exploitation, and tries to restore the original (or at least functional) habitats. ...
... degradation & contamination of water supplies. Many mining and resource exploitations require reclamation efforts. Reclamation attempts to reduce environmental impacts of exploitation, and tries to restore the original (or at least functional) habitats. ...
Introduction to Environmental Science PowerPoint
... The greater the demand for a limited resource, the higher ...
... The greater the demand for a limited resource, the higher ...
Oceans revision sheet
... Effect species that eat Cod die out or migrate away. Species that are eaten by Cod have population explosion (jellyfish) Effect by-catch eg turtles, dolphins caught in large nets Pollution– sewage, litter & farming Effect fertilizers from farms wash into sea and cause eutrophication, where algae gro ...
... Effect species that eat Cod die out or migrate away. Species that are eaten by Cod have population explosion (jellyfish) Effect by-catch eg turtles, dolphins caught in large nets Pollution– sewage, litter & farming Effect fertilizers from farms wash into sea and cause eutrophication, where algae gro ...
Sample Exam IV Questions, November 17, 2006
... a. Genetics b. Evolution c. Diversity d. Ecology e. Environmentalism 2) Which type of interaction between two species is most likely to lead to increased population growth in both species? a. Competition b. Predation c. Mutualism d. Parasitism e. All of the above 3) If the position of each individua ...
... a. Genetics b. Evolution c. Diversity d. Ecology e. Environmentalism 2) Which type of interaction between two species is most likely to lead to increased population growth in both species? a. Competition b. Predation c. Mutualism d. Parasitism e. All of the above 3) If the position of each individua ...
Extinction
... • Unlike other predators, humans exploited the mass flocks of the passenger pigeon ...
... • Unlike other predators, humans exploited the mass flocks of the passenger pigeon ...
Concepts In Ecology
... r-selected – no parental care, lots of offspring, high death rate K-selected – extensive parental care, few offspring, low death rate ...
... r-selected – no parental care, lots of offspring, high death rate K-selected – extensive parental care, few offspring, low death rate ...
Humans and the Environment - Warren Hills Regional School District
... • 6) Biodiversity can be used to help improve people’s health. • Living things supply the world pharmacies. Active chemical compounds in many manufactured drugs are usually first isolated in living things. ...
... • 6) Biodiversity can be used to help improve people’s health. • Living things supply the world pharmacies. Active chemical compounds in many manufactured drugs are usually first isolated in living things. ...
Population
... – # of births (birth rate) – # of deaths (death rate) – # entering and # leaving • Immigration: movement of individuals into an area ...
... – # of births (birth rate) – # of deaths (death rate) – # entering and # leaving • Immigration: movement of individuals into an area ...
5.3 Shaping Communities
... 1. one species eliminating another through competition 2. no two species that are too similar can coexist a. one species will be better at getting the resources they share b. the less successful species will either die off or move ecosystems E. Dividing Resources 1. Competitors eat same kinds of foo ...
... 1. one species eliminating another through competition 2. no two species that are too similar can coexist a. one species will be better at getting the resources they share b. the less successful species will either die off or move ecosystems E. Dividing Resources 1. Competitors eat same kinds of foo ...
Population Ecology
... B ________________ – populations decrease in number by death or __________________ (leaving an area). C. Calculating percentage population change: Percent change = change in population X 100 % Total population size III. Population Limiting Factors: A. Resources – Examples: __________________________ ...
... B ________________ – populations decrease in number by death or __________________ (leaving an area). C. Calculating percentage population change: Percent change = change in population X 100 % Total population size III. Population Limiting Factors: A. Resources – Examples: __________________________ ...
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.