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Data/hora: 06/05/2017 07:52:32 Biblioteca(s): Embrapa Pantanal
Data/hora: 06/05/2017 07:52:32 Biblioteca(s): Embrapa Pantanal

... Conteúdo: The red brocket (Mazama americana) and gray brocket deer (Mazama gouazoubira) are sympatric in the Atlantic Forest and present a number of ecological similarities in their diet and habitat use, although interspecific competition in these species is poorly understood. This study aimed to co ...
Characteristics of Populations
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... Density-Dependent Limiting Factors • Factors that are related to the density of a population: 1. Competition •Organisms compete for food, water, space, sunlight, and other essentials 2. Predation •Population control caused by predator-prey relationships 3. Parasitism and disease •Robs organisms of ...
Appendix A: Pre/Post Test
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... 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 ...
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... Preserving biodiversity is important to the future of the biosphere. • The loss of biodiversity has long-term effects. – loss of medical and technological advances – extinction of species – loss of ecosystem stability ...
Ecosystems
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... Key point – two species cannot have identical niche ...
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... The largest population of an organism that a given environment can support over time is known as the environment’s __________. ...
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... Generalists have a broad niche. These organisms can live in a variety of seasons, temperatures, eat a variety of foods and thus spread over large areas. Generalists tend to live in more difficult climates (i.e. northern Canada, temperate zones), because these climates have more daily and seasonal ch ...
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Endangered Species - Ms. Anderson`s Room 280
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... commensalism: ecological relationship in which one species receives a benefit but the other species is not affected one way or another. parasitism: ecological relationship in which one organism benefits by harming another organism. ...
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The endangered Bush Stone-curlew (PDF File 83.8 KB)
The endangered Bush Stone-curlew (PDF File 83.8 KB)

... distribution and abundance and there is little geographically explicit information available to guide landscape-level conservation planning.’ This study will identify the preferred locations and habitats of the Bush Stone-curlew based on vegetation and site surveys in the central and midnorth coast ...
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... Every organism has a _____________ and a ___________. A. A habitat ___________ from a niche.  A habitat is all aspects of the ________ in which an organism __________.  _________ factors  _________ factors  An ecological _________ includes all of the factors that a species needs to _______, stay ...
APES Lesson 28 - Levels of Ecological Organization
APES Lesson 28 - Levels of Ecological Organization

... • Habitat use = each organism thrives in certain habitats, but not in others - Results in nonrandom patterns of use • Habitat selection = the process by which organisms actively select habitats in which to live - Availability and quality of habitat are crucial to an organism’s well-being - Human dev ...
Chapter 14 Interactions in Ecosystems Review
Chapter 14 Interactions in Ecosystems Review

... 11. Three types of Symbiosis: a. Mutualism: both organisms benefit +/+ Example: Clownfish and Anemone b. Commensalism: one organism benefits, the other is unharmed +/0 Example: Oak Tree and Spanish Moss c. Parasitism: one organism benefits, the other is harmed +/Example: Dog and Tick Leech Feeding o ...
Conserving Populations (week 11)
Conserving Populations (week 11)

...  Extinction in the wild definite, then what?  Captive breeding & Reinroductions  Zoos  All individuals  California condor, black-footed ferret  1000 individuals  2000 land vertebrate species in the next 200 years  Small populations  Control of matings  maximize genetic diversity  Inoculat ...
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Source–sink dynamics

Source–sink dynamics is a theoretical model used by ecologists to describe how variation in habitat quality may affect the population growth or decline of organisms.Since quality is likely to vary among patches of habitat, it is important to consider how a low quality patch might affect a population. In this model, organisms occupy two patches of habitat. One patch, the source, is a high quality habitat that on average allows the population to increase. The second patch, the sink, is very low quality habitat that, on its own, would not be able to support a population. However, if the excess of individuals produced in the source frequently moves to the sink, the sink population can persist indefinitely. Organisms are generally assumed to be able to distinguish between high and low quality habitat, and to prefer high quality habitat. However, ecological trap theory describes the reasons why organisms may actually prefer sink patches over source patches. Finally, the source-sink model implies that some habitat patches may be more important to the long-term survival of the population, and considering the presence of source-sink dynamics will help inform conservation decisions.
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