Exam 26: Large-Scale Patterns of Biological Diversity

All living species of organisms have now been described by scientists.

Patterns of species diversity for pelagic and benthic organisms appear to be influenced by the ________ of primary production rather than by the total productivity.

As latitude increases,the number of marine species ________.

Total species diversity,or species richness,of individual communities is referred to as ________ diversity.

Which of the following taxa have greater richness at lower PET?

As structural diversity within plant communities increases,the number of animal species ________.

Which of the following shows the correct chronological order (geologically oldest to most recent)of near or total extinctions for the organisms listed?

Which of the following is true for Brachyura marine crabs?

The diverse topography of mountainous regions generally supports more species of plants and animals than the consistent terrain of flatlands.

Which of the following was seen as a significant predictor of diversity in the oceans?

Variation in species richness of terrestrial species in North America correlates most strongly with estimates of

Species richness in both terrestrial and marine environments generally declines with latitude.

Which of the following is increased amphibian diversity correlated with?

The number of species of living organisms on the planet is probably closest to

In relation to the stability hypothesis of diversity,which area provides the best evidence that glaciation reduced temperate tree diversity?

Over the past 100 million years,species richness has declined for gymnosperms and has increased for angiosperms.

What does this figure suggest?

On a geological timescale,changes in climate do not influence overall regional patterns of species diversity.

Which of the following is strongly associated with net primary productivity?

Species richness of terrestrial plants and animals increases with