Lemurs in Madagascar
September 8, 2013
Lemurs in Madagascar
1. What are Madagascar’s biomes? Discuss the major features of at least one of these biomes. Use the textbook for biome examples.
Madagascar’s biggest biome is a tropical rainforest. A tropical rainforest biome primarily consists of warm weather, wet plants, and fungi ridden soils. There are three important layers of a tropical rainforest. The emergent layer, 50 m up; where vegetation grows in full sunlight. The canopy (middle) layer, 3-40 m up; provides protection of too harsh of sun to low light plants below. Finally the understory (ground level) where plants and animals only receive 2-3 percent of light from above.
2. What changes happening in Madagascar are posing challenges for lemurs? Give details about the sources, ...view middle of the document...
These secondary habitats are typically those altered by humans. The ring-tailed lemur would be an example of a species that is adapting well. The ring-tailed lemurs have found comfort in the destruction of their primary environment (for the purpose of human crop space) by; utilizing the crops to their advantage as a food source. According to the video all species of lemurs are in some level of danger when it comes to adaptation.
4. What behavioral and physical traits are being favored in lemurs in the changing Madagascar environment?
The behavioral and physical traits that are being favored in lemurs are the abilities to adapt to a secondary habitat as well as thrive in it. There is extensive research being conducted on the sleeping, eating, and adaptable habits of the lemurs. This research will help to determine which lemurs may continue to evolve for the better.
5. Why might lemurs not evolve to adapt to the changes in Madagascar?
Lemurs may not evolve due to the fact that the changes happening on Madagascar are happening too fast. Evolution is a multi-generation process, that cannot compete with the extremely fast advances of human production.
6. Which biogeochemical cycles may be altered by anthropogenic activities on Madagascar, and how?
The biogeochemical cycle that may be affected by the anthropogenic activities on Madagascar is; the air quality. While tree after tree is being chopped down deep in Madagascar’s forest, this is disputing the natural cycle of the plants producing oxygen. Not only is chopping down trees reducing the air quality, but also the chances of the 30-35 species of lemur’s surviving in their natural habitats.
Films Media Group. (2006). Lemurs in Madagascar: Surviving on an island of change [H.264]. Available from http://digital.films.com/PortalPlaylists.aspx?aid=7967&xtid=47539.