Biogeographical Terms and Concepts

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What is the movement of individuals from deme to deme within the range of a species referred to as?

Organismic dispersal

What is the term for the general area where a species' demes naturally occur?

Range

What is the reason for the absence of a deme in a habitat?

Historical factors, geographical barriers, or chance dispersal

What is the movement of an individual from a habitat within a species' present range to one or more habitats outside the range referred to as?

Species dispersal

What is the term for the spread of an entire biota to occupy geographical areas previously occupied by other biota?

Biotic dispersal

What is the result of a species expanding its range?

Expansion

What is the primary basis of Sclater's system of drawing regions?

Geographic relationships of birds

Which two provinces have a problematic boundary between them?

Oriental and Australian

What is a characteristic of each species and higher group of animals in terms of their distribution in space and time?

They have a discrete nonrandom distribution

What is the name of the famous line that separates two zoogeographic provinces?

Wallace's Line

What is a characteristic of the fauna of Africa south of the Sahara and Australia?

They are totally different in terms of species composition

What is true about the data used to delineate zoogeographic regions?

They were compiled before considering continental drift

What is the main reason for the differences in fauna between Europe and eastern Asia, and between Borneo and New Guinea?

The geographical barriers and evolutionary history

What has contributed to the negation of some assumptions of Sclater, Wallace, and others?

Paleontological advances

What is a characteristic of the fauna that existed in the past?

They were strikingly different from the fauna found today

Do Floristic Kingdoms and Zoogeographic Regions coincide?

No, they do not coincide

What is an example of fauna that previously existed in a region but is now restricted to a different region?

The subtropical-warm temperate fauna of Eocene Wyoming

What is one of the conclusions that can be drawn from the study of zoogeography?

There are recognizable recurrent patterns of animal distribution

What process helped biota respond to Pleistocene climate cycling?

Range shifting

What is the primary source of energy for fauna in deep sea hydrothermal vents?

Chemical resources

What event during the Permian period (252 mya) caused a mass extinction of land and marine animals?

Flood basalt eruption

What is the primary factor influencing the rate of colonization in biota development?

Distance from the potential biological source

What method can be used to determine the effect of colonization, natural selection, and population isolation on biota?

Radiometric analysis of volcanic rocks

What type of volcanoes create new lands physically separated from existing inhabited land areas?

Oceanic volcanoes

What is the most effective way to describe the biota of Ghana?

Describing the biota of different natural areas of Ghana

What is a characteristic of endemic species in a biota?

They are found only in a part of the biota

What is the purpose of 'track analysis' in biogeography?

To analyze the areas of endemism in a biota

What is a 'track' in biogeography?

A line drawn on a map to circumscribe the total range of a monophyletic taxon

What is the classic view of centers of origin?

New species originate only from certain areas and all other areas are recipients of species

What is a more recent view of centers of origin?

Several areas of the earth have acted as centers of origin depending on the group in question

Test your knowledge of biogeographical terms and concepts, including dispersal types, species movement, and habitat occupation. Learn about the different types of dispersal, such as organismic, species, and biotic dispersal. This quiz is perfect for biology and ecology students.

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