(1) Physicalbarriers:
This one of the barriers that the vertebrates usually encounter during their life. Land is one of the main factors that contributes to physical barrier since some of the species are constrained in specified geographic factor and also some physical conditions. Water is also another constrain i.e. for other species get constrained. The type of topography and also the soil type is of importance when it comes to the vertebrate distribution. Thus the following can be termed as examples of physical barriers: land, water, elevation, soil type, topography.
(2) Climatic barriers: Climatic condition of any given species is of great importance when it comes to the adaptability of it. When we talk about the climate …show more content…
Name two land bridges and give the significance of each.
Land bridges that usually exist in order to enhance connectivity between two given places. There may be a physical barrier due to topography among other for instance the bridge between Alaska and Siberia. This bridge for instance allows both the plants and animals to immigrate between the two lands. The faunal and floral are visible from the land bridge between Alaska and Siberia.
3. Differentiate between tundra and taiga?
Taiga is considered to be at a lower latitudes than tundra. Taiga thus gets more direct access to the sunlight. This in return makes Taiga to have a higher temperature. Taiga also have more plant life as compared to tundra. The temperature difference has a great impact on the plant life. On the other side, Tundra may be termed as a white plain but Taiga is conifer forest.
4. Why are amphibians and reptiles unable to live in the tundra?
Reptiles and Amphibians are termed as cold blood animals, Thus they need to be in warm areas otherwise their bodies will start to shut down and hibernate and eventually die. Thus this shows the reason as to why this animals cannot