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When can a place be regarded as a biodiversity hotspot?

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The Convention on Biological Diversity (CBD) defines biological diversity as the variability among living organisms from all sources including, inter alia, terrestrial, marine and other aquatic ecosystems and the ecological complexes of which they are part; this includes diversity within species, between species and ecosystems. Hence, a country or a region becomes biodiverse, when it contains much of the world's species (endemicity)--be it in terms of genetic, habitat or species diversity. In essence, it then becomes a biodiversity hotspot when it has lost or continuously loses its biodiversity.

To date, approximately 1.5 million species have been named, but there are more still unnamed and undiscovered. This concerns one of the questions I've posted here (What do you think will happen to biodiversity in the next 50 years) because if majority of the species remains unaccounted, then we might not even know what we are losing or worse have already lost them before we even discover them.

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Biodiversity is simply the variety and variability of organisms at the genetic, specific and ecosystem level. There is a good number of biodiversity hotspots across the world. The thing that defines biodiversity hotspots is the fact that they are home more than half of the world species including reptiles, mammals, birds and amphibians put together. They also have lost more than 70percent of their endemic species.
Note that endemic species are species that are unique to that particular habitat and are not found elsewhere. Some studies say that biodiversity hotspots need to have about 1500 endemic species to be qualified as hotspots. Hotspots have not just lost those species, it is a continuous process and still they remain the richest regions in terms of diversity.
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Basically, a certain habitat for dwelling of organisms can be regarded as biodiversity hotspot when there is large amount various organisms in one place. In other words, the habitat would be steaming with orgainisms that are of different species. There are instances where a particular habitat is predominately dominated by one onrganism, but biodiversity hotspot is not like that.

Another noticeable characteristics of biodiversity hotspot is the rate of competition among the diverse organisms. The habitat would be governed by the law of survival of the fittest, as each organism would have to fight for every available resources for them to survive. It's obvious that the weaker organisms would be preyed upon by the much stronger ones, which are the predators.
For instance, lion will eat up the antelope, just as the snake will eat up rabbit. This will also make the tolerance among the organisms to be very low, as they would find it difficult to coexist together in competitive habitat.
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As we all know, biodiversity is not evenly distributed around earth due to two major factors, climate and primary production. If we are able to categorize biodiversity with these two factors, then we'll definitely come up with an almost perfect hotspot for biodiversity.

Climates are mostly categorized in warm and cold. It's most likely you'll find abundant terrestrial biodiversity in the equatorial regions due to it's warm climate and active reproductuons. Remember they aren't evenly distributed, so the major hotspot for terrestrial biodiversity will be the tropical regions due to changing climates which sustains more life and aid the process of productivity.

As stated above with warm climates, same goes for cold climates too in relation to biodiversity, especially aquarterrestrial lives. These are life forms drawn to colder regions, so it's only right for them to be abundant in cold places where the function the best.

Drawing from all, biodiversity are scattered all around the earth and picking certain hotspots will be determined on the factors mentioned above.
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A place can be regarded as a biodiversity hotspot if it has a high level of biodiversity and a large number of endemic species – meaning species found nowhere else on Earth – that are facing a high risk of extinction. Hotspots are typically identified by global conservation organizations such as the World Wildlife Fund (WWF).
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There is no one time when a place can be regarded as a biodiversity hotspot. Instead, places that have been found to be particularly vulnerable to protection from complexity change.
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The region must have lost atleast 71% of it original natural vegetation usually due to human activity . There over thirty recognize biodervsity hotspots in the world
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A region must have lost at least 70 percent of its original natural vegetation, usually due to human activity. There are over 30 recognized biodiversity hotspots in the world.
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you are caught outside during a thunderstorm, avoid open fields, hilltops, and tall objects such as trees, poles, or wires, and seek shelter in a low-lying area such as a ditch or depression if possible. If you cannot find shelter, make yourself as small a target as possible by crouching down with your feet close together and your hands on your knees, and avoid lying flat on the ground.
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A location will become a biodiveristiy hotspot when its has plenty of distinct plant life and animal, espically ones that are observed nowhere else.
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A place can be considered a biodiversity hotspot when it is characterized by high levels of species richness and endemism, along with significant threats to its biodiversity. These areas are recognized for their exceptional biological diversity and conservation importance on a global scale.
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