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#species vulnerability

3 public questions tagged with this topic.

Extinction Topic

Species more prone to extinction generally show:

“High homozygosity” for species more prone to extinction generally show. This relationship follows from the ecological mechanism represented by the terms in the item, not merely from an association between their names. Extinction risk rises when abundance, geographic range, or genetic variation becomes small because demographic chance, environmental fluctuations, inbreeding, and rare catastrophes then have disproportionate effects. Correlated losses among subpopulations further weaken regional persistence. The remaining alternatives—“Increased heterozygosity”, “High genetic diversity”, “No all

Ref: Conservation Biology, Primack & Sher, 6th Ed., Ch. 7

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Extinction Topic

Species with highly specialized diets are at higher risk because:

“They depend on a single or few resources” for species with highly specialized diets are at higher risk because. This relationship follows from the ecological mechanism represented by the terms in the item, not merely from an association between their names. Extinction risk rises when abundance, geographic range, or genetic variation becomes small because demographic chance, environmental fluctuations, inbreeding, and rare catastrophes then have disproportionate effects. Correlated losses among subpopulations further weaken regional persistence. The remaining alternatives—“They consume many fo

Ref: Conservation Biology, Primack & Sher, 6th Ed., Ch. 7

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Extinction Topic

Organisms with poor dispersal ability are more prone to extinction because:

“They cannot colonize new habitats” for organisms with poor dispersal ability are more prone to extinction because. This relationship follows from the ecological mechanism represented by the terms in the item, not merely from an association between their names. Human-driven habitat conversion, exploitation, introduced enemies, pollution, and climate change often interact rather than acting independently. Traits such as slow reproduction or ecological specialization can magnify vulnerability. The remaining alternatives—“They attract more predators”, “They breed slowly”, “They migrate often”—ref

Ref: Conservation Biology, Primack & Sher, 6th Ed., Ch. 7

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