Search results
Results From The WOW.Com Content Network
Invasive species in Florida are introduced organisms that cause damage to the environment, human economy, or human health in Florida. [1] Native plants and animals in Florida are threatened by the spread of invasive species. [2] Florida is a major biodiversity hotspot in North America and the hospitable sub-tropical climate has also become a ...
This ultimately affects all living organisms that comprise an ecosystem. Ecotoxicology has been defined as a branch of toxicology that focuses on the study of toxic effects, caused by natural or synthetic pollutants. These pollutants affect animals (including humans), vegetation, and microbes, in an intrinsic way. [1]
Since the tundra has such a harsh environment, the animals who live here have adapted in a way to call the tundra their home. The keystone species of the tundra can be as small as a lemming to as large as a musk ox. The low biodiversity means that fluctuation in individual animals can substantially affect the entire ecosystem.
When referring to animals as “overabundant”, various definitions apply. The following classes [2] explore the different associations with overabundance: . The inconvenience of animals in a certain region or area that threatens human livelihood, for example the tropics are considered to contain an overabundant population of the Anopheles mosquito which carries the malaria parasite.
[4] [5] Biological hazards, also known as biohazards, are organic substances that pose a threat to the health of living organisms, primarily humans. This can include medical waste, samples of a microorganism, virus, or toxin (from a biological source) that can impact human health. Biological hazards can also include substances harmful to animals.
In areas where the mean annual soil surface temperature is below −5 °C (23 °F), continuous permafrost forms. This is not limited to sheltered areas and ranges from a few inches below the surface to over 300 m (1,000 ft) deep. The top layer is called the active layer. It thaws in the summer and is critical to plant life.
Permafrost tundra includes vast areas of northern Russia and Canada. [2] The polar tundra is home to several peoples who are mostly nomadic reindeer herders, such as the Nganasan and Nenets in the permafrost area (and the Sami in Sápmi). Tundra in Siberia. Arctic tundra contains areas of stark landscape and is frozen for much of the year. [5]
Endemic organisms with limited ranges are most affected by habitat destruction, mainly because these organisms are not found anywhere else in the world, and thus have less chance of recovering. Many endemic organisms have very specific requirements for their survival that can only be found within a certain ecosystem, resulting in their extinction.