zoogeography-200405130338 [Autosaved].pptx

zoogeography introduction and its branches

1. Principles of Zoogeography Zol-504 3(2-1) Prepared by:- Prof. Asif Saleem M.Phil (Zoology) Aspire College Dijkot Campus

2. Contents: Introduction and history of zoogeography Branches of Zoogeography Barriers to distribution and means of dispersal in following environments: 1. Marine 2. Fresh water 3. Terrestrial Division of world into various zoogeographical regions Geographical limits

3. Contents: Physical, Climatic features and faunas of following regions: 1. Palearctic 2. Nearctic 3. Oriental 4. Ethiopian 5. Australian 6. Neotropical

4. Contents: Continental islands Wallace’s line Weber’s line Continental drift theory Continuous and Discontinuous distribution of animals

5. Introduction to Zoogeography: “The branch of zoology which deals with the study of distribution of animals on surface of earth”. Zoogeography is the sub-branch of geography. “Geography is the study of distribution of animals and plants of earth surface”. Geography has two branches: Phytogeography Zoogeography

6. Division of earth: The earth can be divided into several  faunal regions  separated by natural barriers, such as oceans, deserts, and mountain ranges. The characteristics of the fauna of each region are believed to depend particularly (but not wholly) on the process of  continental drift   stage of evolution

7. Father of Zoogeography: Alfred Russel Wallace known as the father of zoogeography. In 1876, Wallace mapped the six zoogeographical regions of the world, based upon: - Distributions - Taxonomic relationships

8. Branches of Zoogeography: Applied Zoogeography Causal Zoogeography Descriptive Zoogeography

9. Applied Zoogeography: It deals with the geographical distribution of both present and past animals.

10. Causal Zoogeography: It deals with causes that bring about the animal distribution actually fount in present day. Types Ecological Experimental Historical

11. Types of Causal Zoogeography: Experimental zoogeography is any animal of group capable of population increase under any conceivable circumstances. 

12. Descriptive Zoogeography: I integrates the information on the historical, current ecology, physiology and genetics of organisms.

13. Types of Descriptive Zoogeography: