Biogeography and Biodiversity

Which area is NOT considered one of the eight biogeographic realms?

Biogeography focuses solely on large-scale global patterns of biodiversity and does not consider smaller scales like ecoregions.

What percentage of terrestrial species are found in biodiversity hotspots?

Areas of high endemism, with many unique ecosystems and species not found anywhere else, are known as biodiversity ______.

Match the biogeographic realm with a region where it is found:

Which hypothesis suggests that tropical ecosystems are older than non-tropical ones, potentially contributing to higher biodiversity?

The Diversification Rate Hypothesis (DRH) suggests that tropical ecosystems lose biodiversity more quickly than other ecosystems.

Lake Baikal, despite being one of the oldest lakes, has approximately how many fish species?

Lake Victoria, despite being relatively young, has over 500 species of ______ fish.

Which of the following factors is LEAST likely to explain the latitudinal biodiversity gradient?

The species-area relationship is considered a primary driver of biodiversity differences at intercontinental scales.

According to the lecture, which hypothesis is supported by the observation that many taxa started diversifying earlier in warm tropical areas?

The observation that diversification rates are much higher in the tropics tends to support the ______ Hypothesis.

What is the primary objective addressed in the lecture on conserving biodiversity?

Conservation triage involves prioritizing conservation efforts and allocating resources to all species equally, regardless of their likelihood of survival.

What is the term for assessing extinction risk that assigns species to categories such as 'Critically Endangered'?

The IUCN category for species that are believed to be only remaining in captivity is '______ in the Wild'.

Under IUCN criteria, a species facing an "extremely high risk" of extinction is classified as:

The IUCN 'Least Concern' category indicates that a species has not been evaluated for extinction risk.

Which IUCN category is used when there is insufficient information to properly assess a species' extinction risk?

Match the IUCN Category with its corresponding definition:

A reduction in population size of 85% over a 10-year period would likely qualify a species for which IUCN category?

The criteria for 'Endangered' and 'Vulnerable' are completely different, with no overlap in the factors considered.

What does a 'geographic range' refer to when assessing a species using IUCN Red List criteria?

One of the IUCN criteria for evaluating threatened status involves assessing the ______ in population size over a specified period.

What does conservation triage involve in the context of biodiversity protection?

Ethical considerations are irrelevant when making decisions about which species to prioritize for conservation.

What factor needs to be critically evaluated when considering the ethical and practical challenges of protecting biodiversity.

Considering the challenges of protecting biodiversity, assigning priorities among species is an example of '______ triage'.

What can we learn from extinction events, that we can then apply to current extinction events?

Paleozoic mass extinctions have no relevance to understanding current human-caused extinctions.

Megafauna is closely associated with what extinction event?

Understanding the causes of the ______ megafauna extinction, provides the information on ways to apply current extinction event understanding.

Match each term extinction with its corresponding timeframe:

What extinction event caused species to be extinct in modern history?