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Biodiversity considers
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The most interesting thing that I have learned about Biological Geography this semester is biodiversity hotspots. Before taking this class I had no clue what biodiversity hotspots where and how big of a role they play on humans. Biodiversity hotspot is biogeographic region with a significant reservoir of biodiversity that it is under threat from humans. The idea of biodiversity first was introduced by Norman Myers and many scientist have contributed on this idea.
Myers laid out several foundation of what has to occur in order for a geographical region to be considered a hotspot. To qualify as a biodiversity hotspot region must meet two strict criteria: it must contain at least 0.5% or 1,500 species of vascular plants as endemics, and it has to have lost at least 70% of its primary vegetation. In 2000, there were 25 biodiversity hotspots and possible 9 more were on the verge of becoming a hotspot. Some of these hotspots are Atlantic forest and tropical rain forest found in South America, Caribbean islands and Mesoamerica found in North America and Central America, Mediterranean Basin...
http://eaglenet.lambuth.edu/facultyweb/science/biology/RCook/community%20ecologyS10.pdf. Impacts on the Biodiversity. Quebec Biodiversity Website -. Web. The Web.
Landscape fragmentation contributes to loss of migratory corridors, loss of connectivity and natural communities, which all lead to a loss of biodiversity for a region. Conservation of biodiversity must include all levels of diversity: genetic, species, community, and landscape (CNHP 1995). Each complex level is dependent upon and linked to the other levels. In addition, humans are linked to all levels of this hierarchy. A healthy natural and human environment go hand in hand (CNHP 1995). An important step in conservation planning, in order to guarantee both a healthy natural environment as well as a healthy human environment, is recognizing the most endangered elements.
This trip starts from Denver, Colorado to Yellowstone National Park, Wyoming. “Natural landform” is the main theme for this trip. I will explore the mystery of geothermal features in Yellowstone National Park.
Species reintroduction has become a hotly debated topic, especially in the states experiencing actual reintroduction efforts. The reintroduction of the lynx into Colorado appeals to many who would like to return the area to it's pristine, pre-developed state. However, the actual costs, both financial and emotional, make this program impractical and illogical.
The biome I have chosen is the temperate rain forest. These types of forest are homes to a few and very amazing species . The temperate rain forest are mainly made of conifer trees. They also receive high rainfall every year. The average amount of rainfall it gets is 140 centimeters, or 55 inches a year. That is a total amount of 4.58333… feet in year-round rainfall.
The current level of conceptual understanding of the effects of biodiversity on ecosystem processes is so primitive that at this stage it is possible to recognize the linkages at the level of functional groups only. In any ecosystem there are diverse types of functions performed by different species or species groups. However, no two species or individuals are identical. It may be noted that some species diversity within the functional groups or genetic diversity within the species has important ecosystem
Modern-day genetic technology has granted mankind with the opportunity to bring back extinct species from the dead. If humans have come to possess the DNA from an extinct animal population, it is possible to create an identical clone of the animal in question, effectively “bringing it back from the dead”. Many ethical dilemmas surround the practice of de-extinction, and rightfully so. Recreating an extinct species could produce groundbreaking scientific breakthroughs, generating exciting opportunities for future genetics-based research. However, there could also be monumental consequences: the newly revived, once-extinct species might destroy the ecological equilibrium of modern Earth
On the first level, when foreign, but previously non-invasive species is first introduced to a new area, the new species may play a role in a community that was previously unfulfilled; it may fill a vacant niche in the ecosystem. Originally this new species may be seen as a useful contributor to its new surroundings because it has only (temporarily) increased biodiversity in the area (Meinesz, 2003).
nuclei was then inactivated and substituted with dead nuclei from the extinct frog. Some eggs started to grow and divide to early embryo stage (a tiny ball of m...
There's always something new to research in geography: new nation-states are created, natural disasters strike populated areas, the world's climate changes, and the Internet brings millions of people closer together. Knowing where countries and oceans are on a map is important but geography is much more than the answers to trivia questions. Having the ability to geographically analyze allows us to understand the world in which we live.
Hart, Diane. Geography Alive! Regions and People. Palo Alto, CA: Teachers' Curriculum Institute, 2006. Print.
Biodiversity is affected by five main pressures: habitat loss and degradation, climate change, excessive nutrient load and pollution, over-exploitation, and invasive alien species. As mentioned before, humans are not the only force that influences the environment. Natural events such as volcanic eruptions can potentially disrupt an ecosystem’s balance as well. However, at least three out of five of the principle pressures are caused by humans, although it is arguable that we do play a crucial role in speeding climate change and transporting invasive species. Ecosystem degradation and biodiversity loss is almost like the result of the other issues.
Biodiversity refers to wide diversity found in the living components of the earth which refers to the numerous varieties of flora and fauna including those of microorganisms too. The interaction of biotic and abiotic components of the ecosystem is very important aspect of life on earth. Biodiversity helps us to understand the variations among species and also how life originated on earth. Its study helps us to understand the inter-relationship between various forms of life and their adaptation to different conditions.
NEED AND PURPOSE FOR CONSERVATION OF BIODIVERSITY: Biodiversity, a contraction of “biological diversity,” generally refers to the variety and variability of life on Earth. The very existence of human species and sustainable development depend on biodiversity conservation, therefore the need for conservation of biodiversity is basically for this reason that all living creatures need other creatures and plants in one way or the other. At least 40 per cent of the world’s economy and 80 per cent of the needs of the poor are mainly derived from biological resources. Biodiversity is necessary for our existence as well as valuable in its own right as it provides the fundamental building blocks for the many goods and services which are essential
Nowadays it is common to read articles in newspapers and magazines regarding biodiversity issues. Human beings have been knowingly and unknowingly destroying biodiversity since their existence. Biodiversity is the measure of the variety of species of animals living in an area. Forests are usually areas with high biodiversity while deserts are the opposite. Human beings have always destroyed biodiversity either by deforestation, or by some other means. Biodiversity depletion is a natural phenomenon. But the present levels of biodiversity depletion are many times higher than the natural rate. Recently the levels of loss in biodiversity have started causing global concern. Some of the main causes for loss in biodiversity are alteration of habitats, increasing levels of pollution and human population growth.