What is distribution in zoogeography?
Distribution in Space: In this type of distribution the arrangement of different types of animal on the earth’s surface is considered, i.e., animal’s distribution both on land and water.
What is the science of the geographical distribution of animals?
biogeography, the study of the geographic distribution of plants, animals, and other forms of life. It is concerned not only with habitation patterns but also with the factors responsible for variations in distribution.
What is the significance of zoogeography?
Zoogeography is one of the various branches of biology. It deals primarily with the geological distribution of animals. It also studies the causes, effects, and interactions (in the past, the present, or the future) resulting in the geological distribution of particular species of animals.
Who started the geographical distribution of animal?
Alfred Russel Wallace
The Geographical Distribution of Animals, with a Study of the Living and Extinct Faunas, as Elucidating the Past Changes of the Earth’s Surface. By Alfred Russel Wallace.
What is meant by animal distribution?
In biology, the range of a species is the geographical area within which that species can be found. Within that range, distribution is the general structure of the species population, while dispersion is the variation in its population density.
How does zoogeography help zoology?
Zoogeography is very important for understanding and studying the factors in and modes of speciation. Most biologists believe that so-called geographic speciation, which is caused by territorial isolation of populations, is the main if not the only way in which new forms and species are created.
What is historical zoogeography?
Historical zoogeography tries to explain the present-day areas of distribution of animals in the light of what is known of the origin and evolution of organisms and landscapes. Ecological and historical zoogeography are nevertheless not opposed to each other.
What are the causes of animal distribution?
Biotic factors such as predation, disease, and inter- and intra-specific competition for resources such as food, water, and mates can also affect how a species is distributed.
What are the theories of distribution of animals?
Theory of continental drift and existence of corridors and filter bridges between two land masses also explain distribution of animals and have been dealt with earlier. In addition to these the following theories explain the distribution of plants and animals across continents.
How does the geographic distribution of animals support evolution?
Biogeography, the study of the geographical distribution of organisms, provides information about how and when species may have evolved. Fossils provide evidence of long-term evolutionary changes, documenting the past existence of species that are now extinct.
What is the name for the study of the geographic distribution of species?
Biogeography is the study of the patterns of geographic distribution of organisms and the factors that determine those patterns.
What animals did Alfred Russel Wallace discover?
Wallace went north by river, collecting in areas previously unexplored by European naturalists. He amassed thousands of animal specimens, mostly birds, beetles and butterflies.
What are barriers of animal distribution?
The biotic barriers include food, enemies and competition from other living organisms. (i) Food: Certain arthropods (Aphid) depend upon a particular species of plant for their food, shelter and breeding place. Hence, absence of that plant in a particular area acts as a barrier for the distribution of such arthropods.
What is geographic distribution in evolution?
The geographic distribution of organisms on Earth follows patterns that are best explained by evolution, in combination with the movement of tectonic plates over geological time.
What factors influence the distribution of animals?
What is zoogeography and factors affecting animal distribution?
Zoogeography and Factors affecting animal distribution 2. Zoogeography • Branch of biology concerned with the distribution of all the animals, invertebrates and vertebrates, the terrestrial and aquatic, over the whole world.
What is zoogeography?
Introduction Zoogeography, the branch of the science of biogeography that is concerned with the geographic distribution of animal species.
What is the faunal distribution of these areas?
The faunal distribution of these areas are described in detail under the heading Oriental, Neo-tropical and Ethiopian realms in the chapter — zoogeographical realms. This is also called cosmopolitan distribution. When an animal is found over a wide area, i.e., uninterrupted range of surface distribution, then it is called continuous distribution.
What are the main zoogeographic regions of the world?
Philip Sclater (1858) and Alfred Wallace (1876) identified the main zoogeographic regions of the world used today- 1. Palearctic region 2. Nearctic region 3. Neotropical region 4. Ethiopian region 5. Oriental region 6. Australian region 4. Palearctic region 5. • Includes northern part of Old World.