1756579
Descrição
Quiz por Laurel McLaughlin, atualizado more than 1 year ago
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Criado por Laurel McLaughlin
mais de 9 anos atrás
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Questão 1
Questão
If individuals in the last remaining population of a particular bird species were all highly related, which type of diversity would be of greatest concern when planning to keep the species from going extinct?
Image:
related-birds (image/jpg)
Responda
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species diversity
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genetic diversity
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ecosystem diversity
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taxonomic diversity
Questão 2
Questão
Why is the extinction of the Yangtze River dolphin considered particularly significant?
Responda
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it was a keystone species
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it was from a species-poor lineage
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there was high genetic diversity within the species
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it was a keystone prey species
Questão 3
Questão
You discover a new species at University of Waterloo, and it is only found on campus. This new species is best described as:
Responda
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endangered
-
vulnerable
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endemic
-
sensitive
Questão 4
Questão
Which of the following is likely NOT a major threat to the unique species pairs of stickleback in British Columbia? (Select all that apply)
Image:
stickleback-fish (image/jpg)
Responda
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land development and habitat degradation
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introduction of alien species
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overexploitation
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deterioration of water quality
Questão 5
Questão
Why are smaller, fragmented habitats often of lesser quality than contiguous habitats?
Responda
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fragmentation often leads to detrimental edge effects
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fragmentation reduces species' ability to move between habitat patches
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smaller habitats often do not contain the necessary resources for large animals
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all of the above
Questão 6
Questão
Why are smaller, isolated populations more likely to be extirpated?
Responda
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they are more likely to be exterminated by severe stochastic events
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they are subject to inbreeding depression and genetic drift
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they are more likely to be subject to fitness trade-offs
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both A and B
Questão 7
Questão
What is the leading cause of endangerment for marine species?
Responda
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pollution
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invasive species
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overexploitation
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habitat loss
Questão 8
Questão
Habitat loss is the leading cause of endangerment for terrestrial species.
Responda
- True
- False
Questão 9
Questão
Most endangered species are currently found on islands.
Responda
- True
- False
Questão 10
Questão
Experimental evidence from Brazil indicates that fragmenting tropical wet forests results in:
Responda
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an eventual recovery of biodiversity and biomass
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a decrease in biodiversity, and a decrease in biomass
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an increase in biodiversity, and a decrease in biomass
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a decrease in biodiversity, and an increase in biomass
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