Ecological Relationships
... activities and relationships a species has while obtaining and using resources needed to survive and reproduce ...
... activities and relationships a species has while obtaining and using resources needed to survive and reproduce ...
Indirect commensalism promotes persistence of secondary
... in propagating extinction cascades [9–11]. Currently, there is little empirical evidence for secondary extinctions being caused by the loss of positive indirect interactions following a primary extinction, despite evidence that indirect interactions play a dominant role in structuring ecological com ...
... in propagating extinction cascades [9–11]. Currently, there is little empirical evidence for secondary extinctions being caused by the loss of positive indirect interactions following a primary extinction, despite evidence that indirect interactions play a dominant role in structuring ecological com ...
Sea Anemones
... reefs) and in deep ocean waters as well • Temperate and tropical areas worldwide • Do not change location from where they first planted themselves unless sense that their environment is unstable ...
... reefs) and in deep ocean waters as well • Temperate and tropical areas worldwide • Do not change location from where they first planted themselves unless sense that their environment is unstable ...
Indirect commensalism promotes persistence of secondary consumer
... in propagating extinction cascades [9–11]. Currently, there is little empirical evidence for secondary extinctions being caused by the loss of positive indirect interactions following a primary extinction, despite evidence that indirect interactions play a dominant role in structuring ecological com ...
... in propagating extinction cascades [9–11]. Currently, there is little empirical evidence for secondary extinctions being caused by the loss of positive indirect interactions following a primary extinction, despite evidence that indirect interactions play a dominant role in structuring ecological com ...
Unit 12.1: Community Interactions
... a clownfish, and it’s swimming near the tentacles of an animal called a sea anemone. The sea anemone kills prey by injecting poison with its tentacles. For some reason, the anemone doesn’t harm the clownfish, perhaps because the fish has a coating of mucus that helps disguise it. But why does the cl ...
... a clownfish, and it’s swimming near the tentacles of an animal called a sea anemone. The sea anemone kills prey by injecting poison with its tentacles. For some reason, the anemone doesn’t harm the clownfish, perhaps because the fish has a coating of mucus that helps disguise it. But why does the cl ...
life webs practice test with answers
... F) ___Niche____ The “job” an organism has in its ecosystem. G)____Biome____ A geographic area with specific characteristics, like a desert, ocean, or prairie. H)___Competition____ When organisms both need the same limited resource this exists between them. I) __Adaptation__ A change that happens to ...
... F) ___Niche____ The “job” an organism has in its ecosystem. G)____Biome____ A geographic area with specific characteristics, like a desert, ocean, or prairie. H)___Competition____ When organisms both need the same limited resource this exists between them. I) __Adaptation__ A change that happens to ...
Endangered Plants
... The habitats and conditions that foster this diversity are themselves the cumu lative result of natural processes that have been taking place for millions of years, and for this reason the current distribution of many species is closely tied to the geological history of the region. The ranges of man ...
... The habitats and conditions that foster this diversity are themselves the cumu lative result of natural processes that have been taking place for millions of years, and for this reason the current distribution of many species is closely tied to the geological history of the region. The ranges of man ...
AP Exam - TeacherWeb
... maintain and protect endangered populations in ancestral habitats, prohibits the removal of Asian elephants and other endangered species from the wild and their importation into the United States. The stresses on habitat and space, poaching and unregulated hunting have severely limited the ability o ...
... maintain and protect endangered populations in ancestral habitats, prohibits the removal of Asian elephants and other endangered species from the wild and their importation into the United States. The stresses on habitat and space, poaching and unregulated hunting have severely limited the ability o ...
Chapter 54: Community Ecology
... Among the plant compounds that serve as chemical weapons are the poison strychnine, produced by the tropical vine Strychnos toxifera; nicotine, from the tobacco plant; and tannins, from a variety of plant species. Plants in the genus Astragalus accumulate selenium; they are known as “locoweeds” beca ...
... Among the plant compounds that serve as chemical weapons are the poison strychnine, produced by the tropical vine Strychnos toxifera; nicotine, from the tobacco plant; and tannins, from a variety of plant species. Plants in the genus Astragalus accumulate selenium; they are known as “locoweeds” beca ...
Ecology is the study of relationships between living things and
... the creation of new vaccines a change in temperature storms, earthquakes, and other natural disasters crowding and competition ...
... the creation of new vaccines a change in temperature storms, earthquakes, and other natural disasters crowding and competition ...
Practice Quiz 6 - Iowa State University
... a) age specific survivorship ( proportion of alive individuals at start of year) b) age specific fertility c) number dying during year d) both a&b Ro=E lxmx Lx=age specific survivorship Mx=age specific fertility 22) The maximum number of individuals a certain area can sustain is know as a) the intri ...
... a) age specific survivorship ( proportion of alive individuals at start of year) b) age specific fertility c) number dying during year d) both a&b Ro=E lxmx Lx=age specific survivorship Mx=age specific fertility 22) The maximum number of individuals a certain area can sustain is know as a) the intri ...
Relationships: Predation, Competition, Symbiosis
... In grazing, the predator eats part of the prey but does not usually kill it. You may have seen cows grazing on grass. The grass they eat grows back, so there is no real effect on the population. In the ocean, kelp (a type of seaweed) can regrow after being eaten by fish. Predators play an important ...
... In grazing, the predator eats part of the prey but does not usually kill it. You may have seen cows grazing on grass. The grass they eat grows back, so there is no real effect on the population. In the ocean, kelp (a type of seaweed) can regrow after being eaten by fish. Predators play an important ...
faqs on the endangered species act
... What is a species? A species includes any species or subspecies of fish, wildlife or plant, and any distinct population segment of any vertebrate species that interbreeds when mature. Excluded is any species of the Class Insecta determined by the Secretary to constitute a pest whose protection under ...
... What is a species? A species includes any species or subspecies of fish, wildlife or plant, and any distinct population segment of any vertebrate species that interbreeds when mature. Excluded is any species of the Class Insecta determined by the Secretary to constitute a pest whose protection under ...
Environmental Science Chapter 4a 2005-06
... Pyramid of Energy Flow Explains why: 1.) So few top carnivores 2.) Why these species are the first to suffer when there is disruption 3.) Why they are vulnerable to extinction ...
... Pyramid of Energy Flow Explains why: 1.) So few top carnivores 2.) Why these species are the first to suffer when there is disruption 3.) Why they are vulnerable to extinction ...
Coral Reef Biome: a large naturally occurring community of
... a spot that is on its back fin to resemble an eye and ward off predators Frogfishes: frog-like; modified dorsal fin; lie motionless and use spine like a rod; large powerful jaws ...
... a spot that is on its back fin to resemble an eye and ward off predators Frogfishes: frog-like; modified dorsal fin; lie motionless and use spine like a rod; large powerful jaws ...
Topic 4 Biodiversity Notes
... regenerate, but as population sizes increase and the demand for resources rises too many areas are cleared before they have had time to re-grow. This leads to a gradual degradation of nutrients and of biodiversity. It is estimated that it takes 1000 years for the biodiversity of the primary forest t ...
... regenerate, but as population sizes increase and the demand for resources rises too many areas are cleared before they have had time to re-grow. This leads to a gradual degradation of nutrients and of biodiversity. It is estimated that it takes 1000 years for the biodiversity of the primary forest t ...
Topic 1 - Interactions Within Ecosystems
... enjoyable. Each time a need or a want is satisfied, natural resources or energy are used up. This impacts the environment we live in. Transporting food from all around the world, just so we can have the luxury of choice impacts other regions as well, because those regions had to clear land, use fuel ...
... enjoyable. Each time a need or a want is satisfied, natural resources or energy are used up. This impacts the environment we live in. Transporting food from all around the world, just so we can have the luxury of choice impacts other regions as well, because those regions had to clear land, use fuel ...
Ch54_Lecture Populations wiki
... individuals tend to be highest when population is below carrying capacity. If humans wish to maximize the number of individuals harvested from a population, we should try to maintain it ...
... individuals tend to be highest when population is below carrying capacity. If humans wish to maximize the number of individuals harvested from a population, we should try to maintain it ...
Week12
... • Nearly all inland water bodies have been modified to some extent through human intervention. For instance, the enriching effects of excess fertilizers and livestock wastes in the runoff from farmland and lakes have caused biological environmental impacts on rivers and streams. * New ecosystems hav ...
... • Nearly all inland water bodies have been modified to some extent through human intervention. For instance, the enriching effects of excess fertilizers and livestock wastes in the runoff from farmland and lakes have caused biological environmental impacts on rivers and streams. * New ecosystems hav ...
See Powerpoint Presentation!
... What are wetlands? • Wetlands are areas where water is the primary factor controlling the environment and the associated plant and animal life • They occur where the water table is at or near the surface of the land, or where the land is covered by shallow water for at least six months of the year ...
... What are wetlands? • Wetlands are areas where water is the primary factor controlling the environment and the associated plant and animal life • They occur where the water table is at or near the surface of the land, or where the land is covered by shallow water for at least six months of the year ...
Change over Time
... certain point, it may not be able to recover One way that this can happen is if a species becomes isolated, cut off geographically from others of its species Another way is habitat loss, when land area available for a species to live decreases due to human activity ...
... certain point, it may not be able to recover One way that this can happen is if a species becomes isolated, cut off geographically from others of its species Another way is habitat loss, when land area available for a species to live decreases due to human activity ...
MCCA-MCGE
... stresses if they harbor many species rather than just one or a few. The more species an ecosystem contains, the more likely some of them will be resistant to environmental stress.” Based on the above statement discuss the need for biodiversity in Senegal. Evaluate possible human impacts or natural f ...
... stresses if they harbor many species rather than just one or a few. The more species an ecosystem contains, the more likely some of them will be resistant to environmental stress.” Based on the above statement discuss the need for biodiversity in Senegal. Evaluate possible human impacts or natural f ...
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.