For the metapopulation of Daphnia in Scandinavian freshwater pools, which situation would be most likely to result in maintenance of the metapopulation, rather than its extinction? A) Immigrants increase the genetic diversity of pools, slightly increasing r. B) Years of drought decrease the average size of all pools. C) Small pools “wink off” and are not repopulated by dispersal from larger pools. D) The pools are mostly small, and there is no dispersal among them. E) Dispersal among pools is infrequent, and many pools reach zero density.

Q: How do the pesticide and antibiotic resistance affect the genetic diversity of aquatic species

A: Genetic diversity represents the variations of a trait in natural populations. Evolutionary forces…

Q: What are some reasons a species may be absent from a habitat or region to which it should adapt…

A: The geographical distribution of the species can be explained with the help of fossil records. The…

Q: two populations that decreased as an immediate result of the zebra mussel invasion?

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Q: What conditions make it likely that a small group of closely related species will increase to a…

A: Speciation is the process by which new species are formed.

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Q: In the past, which factor would have caused a mass extinction of species?

A: Mass extinction is an event that is widely spread and results in a rapidly declining biodiversity of…

Q: What is intraspecific competition? What are some examples of how the limited quantity of resources…

A: What is the intraspecific competition? Intraspecific competition is an interaction in population…

Q: The process by which many new species arise in a relatively short period of time is known as________…

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Q: What characteristics make some species more vulnerable to extinction, while others seem to thrive…

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Q: Can you think of one organism not mentioned in thischapter as a keystone species that you believe…

A: Species are described using the biological species concept. These species are the fundamental units…

Q: why might an overfished stock never recover to its original population level?

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Q: Do you think generalist or specialized species would be better able to adapt and avoid extinction if…

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Q: Several kinds of symbiotic relationships involve a fungus and a photoautotroph. Give two different…

A: Mutualism is a type of symbiotic relationship in which both the species are benefited.  Parasitism…

Q: How does the reduced genetic diversity of small populations make them more vulnerable to extinction?

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Q: environments affect the physiology and morphology of species? Give an example of one physiological…

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Q: How do the four hypotheses, described in your text, provide alternative explanations for the pattern…

A: In the ecosystem, The species and their availability always depend on their source of food. The…

Q: On the island of Mauritius and in the Azores, the habitat is very suitable to what animals, even…

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Q: What difference would it make if the southern sea otter (Core Case Study) became extinct primarily…

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Q: What factors can cause or hasten extinction?

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Q: Why do some species survive while others go extinct? Explain

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Q: which species is most numerous? Which is least numerous?

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Q: What type of succession will occur over time in this type of case ?

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Q: Why are many species absent from continents that contain suitable habitat?

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Q: According to the morphological species concept, would you classify benthics and limnetics as A) a…

A:

Q: Under what circumstances can two species with identical niches coexist indefinitely?

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Q: Why is it difficult to predict which species will be driven extinct by global warming?

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Q: How come dispersal is still allopatric speciation? I was under the impression that a new…

A: Allopatric speciation is the divergence of physical separate populations of a species, occupying…

Q: The accelerating spread of non-native species is a major component of anthropogenic global change,…

A: A species that arise and grow in a surrounding habitat and adapt to survive in that particular…

Q: Create a two-part figure showing the effects of forest fragmentation on the community of small…

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Q: Which types of environments/conditions would favor sexual reproduction over asexualreproduction in a…

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Q: What tupe of succession will occur over time in this type of case ?

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Conservation Biology

The study of how to prevent the loss of biological diversity on the planet is called conservation. Biological diversity, also termed biodiversity, consists of various life forms found in a specific location or across the entire planet, including ecosystems, species, populations, and genes. Conservation thus aims to protect the diversity of life at all levels of biological organization.