3.+EcoMeasures

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= Why is it important to use native species for reforestation? =

Reforestation is the reestablishment or expansion of a forest which was previously destroyed or degraded. Sometimes the reforestation occurs through [|natural regeneration], when seeds from existing stands of trees are deposited on deforested lands, distributed by either wind, insects, birds, or other seed dispersers. Another way of reforestation may be voluntary reforestation. When humans reforest it is extremely important that they use [|native species]. Using native species is important because inhabitant animals are used to living in that area with those resources. Also these new invasive species may jeopardize the native species lives. Introduces species can change an environment completely. Some introduced species may react perfectly with native species but there is now way to know if these species would react in a negative or positive way. In our trip to Monteverde we helped reforesting a forest when planting native species along the road, making a biological corridor. We also helped plant species in the plant nursery

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= = = What is the purpose of establishing biological corridors? =

Biological Corridor is a continuous extent of [|habitat] linking [|ecosystems], either spatially or functionally; such a link restores or conserves habitats that are fragmented by natural causes or human development. Biological Corridors may help preserving species richness and the growth of ecosystems. From my point of view biological corridors are natural highways that prevent some ecological areas from being segregated. Biological Corridors also work as a migratory route for Flora and Fauna. In Monteverde, we planted biological corridors along the Monteverde road. this way animals wont need to expose themselves when traveling from one ecosystem to another.

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= How can endangered species benefit from biological corridors? Give a real life example: an endangered species and the type of biological corridor (s) it benefits from. =

"An **[|endangered species]** is a population of organisms which is facing a high risk of becoming [|extinct] because it is either few in numbers, or threatened." Endangered species benefit from biological now that this works as a method of transportation from one ecosystem to another. One example that could benefit from biological corridors is the Bellbird. The Bellbird is threatend now that they have limited resources and also a lack of sexual partners in their habitat. They use biological corridors to travel to diferent habitats in order to find what they need. Endangered species are endangered due to a problem in the enviorment that surrounds them like, lack of resources sexual partners, human intervention, deforestation, disorganized food chain, introdiuced species and many other threats to the species. Having the capacity of being able to run away from danger by a biological corridor for animals may be very helpful inorder to survive. media type="youtube" key="p5APwBNzqHc" width="425" height="350"

= What are the main consequences of ecosystem change for human beings? How do changes in ecosystems affect human well being? = Human beings daily routine is based on nature and its courses. if ecosystem changes humans will be threatened now that every resource we consume or use comes from the ecosystem that surrounds us. For example, if a medical plant gets extinct in an ecosystem lots of people will loose what provides their medication. Some [|species] are being forced out of their habitats because of changing conditions in their habitat which will lead to other secondary species to replace them and human beings need to get used to these new species. A change in an ecosystem can be global warming, global warming is a change in the biggest ecosystem of all, its a change on earth. We as humans need to find a way to eventually survive this change now that sea levels would be eventually rising and temperatures would be rising. = = =How are biodiversity and climate change related?= Biodiversity has everything to do with climate. Biodiversity depends on the climate in that area. If climate changes then biodiversity would eventually change with climate. If the climate in an area is humid, warm and has oceans, then, biodiversity would be tropical and animals living there would be animals who are made for that types of environment and temperatures. "According to the Millennium Ecosystem Assessment, climate change is likely to become one of the most significant drivers of biodiversity loss by the end of the century." Climate change is already forcing biodiversity to adapt either through shifting habitat, changing life cycles, or the development of new physical traits. However, conserving in-tact ecosystems, such as mangroves, for example, can help reduce the disastrous impacts of climate change such as flooding and storm surges. =What are the most critical factors causing ecosystem changes?= One of the most critical factors causing ecosystems to change is Global Warming. Greenfacts.org defines climate change as "The long-term fluctuations in temperature, precipitation, wind, and all other aspects of the Earth's climate." These fluctuations affect biological communities by either killing or forcing organisms to adapt to new environmental conditions. Another cause for ecosystem change is hunting and fishing, every ecosystem is composed of several species that perform leading roles in the food chain once some of the species are removed it would cause disorder. Human exploitation of resources in an environment is a critical factor why ecosystem change. When humans beings exploit a resource in an environment every specie that once benefited from that resource will now lack a part of their routinely diet. Science and technology have affected ecosystems due to humans fast paced growth of mass production. Humans now need means of transportation and communication everywhere as well as resources to make this possible that not only exploit the resource but also pollutes in great amounts the environment. An example of scientific and technological advances is seen in Monteverde when in the most remote place in the middle of the jungle you can still find electricity cables.

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- Miranda, Alejandro. "Docs." //Welcome to Google//. Alemir.com, 7 June 2012. Web. 08 June 2012. .

- Dupree, Elizabeth. "Natural Regeneration." //Natural Regeneration//. Aurovilleuniversaltownship.com, 02 Nov. 2008. Web. 08 June 2012. .

- Smith, S.E., and Kristen Osborne. "What Is a Native Species?" //WiseGeek//. Conjecture, n.d. Web. 08 June 2012. .