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The event may put a species at risk of extinction or upset an ecosystem. [2] This is distinct from the mass die-off associated with short lived and synchronous emergent insect taxa which is a regular and non-catastrophic occurrence. [3] Causes of MME's include disease and human-related activities such as pollution.
Deforestation in the United States was affected by many factors. One such factor was the effect, whether positive or negative, that the logging industry has on forests in the country. Logging in the United States is a hotly debated topic as groups who either support or oppose logging argue over its benefits and negative effects.
"Complete List of Amphibian, Reptile, Bird and Mammal Species in California" (PDF). Archived from the original (PDF) on 2010-11-06 This is the primary source for most species on this list. California Department of Fish and Game. "Mammal Species of Special Concern"
In California’s Mediterranean climate, trees, shrubs and the species they support are naturally adapted to drought. But excessive pumping from wells can push habitats beyond ecological limits by ...
Deforestation is the main threat to the North American tropical wet forests and has devastating consequences. Deforestation causes habitat loss and habitat fragmentation which has drastic effects on biodiversity. [32] Deforestation of tropical wet forests has caused many native species to become endangered or extinct at an alarming rate.
Habitat size and numbers of species are systematically related. Physically larger species and those living at lower latitudes or in forests or oceans are more sensitive to reduction in habitat area. [23] Conversion to "trivial" standardized ecosystems (e.g., monoculture following deforestation) effectively destroys habitat for the more diverse ...
California laws relating to fully protected species were among the first attempts in the nation to give protection to wildlife in risk of extinction, predating even the Federal Endangered Species Act (ESA). In the decades that followed, new laws were enacted that were more flexible to the needs of growing communities and the modern world.
The coast of California north of San Francisco contains the Northern California coastal forests (as defined by the WWF) and the southern section of the Coast Range ecoregion (as defined by the EPA). This ecoregion is dominated by redwood forest , containing the tallest and some of the oldest trees in the world.