biodiversity

Dramatic declines in amphibian populations, including population crashes and mass localized extinction, have been noted in the past two decades from locations all over the world, and amphibian declines are thus perceived as one of the most critical threats to global biodiversity.

However, the Mobile River system has a high incidence of endemism among freshwater mollusks and biodiversity is high.

After studying the circumpolar current it is clear that it strongly influences regional and global climate as well as underwater biodiversity.

These projects are part of a vision to protect and restore the indigenous biodiversity.

of living organisms ), i. e. primary biodiversity data

If an environment is highly stressful, biodiversity tends to be low.

If abiotic stress does not have a strong presence in an area, the biodiversity will be much higher.

As lakes and rivers become more acidic biodiversity is reduced.

The Brazilian Amazon sustains about 40 % of the world's remaining tropical rainforests and plays vital roles in maintaining biodiversity, regional hydrology and climate, and terrestrial carbon storage.

** Ecosystems: biodiversity — biome — habitat — plankton — thermocline — carbon cycle — water cycle — nitrogen cycle — food web — trophic level — saprobe — decomposition

* The Tree of Life: A multi-authored, distributed Internet project containing information about phylogeny and biodiversity.

Further deforestation and destruction of the biodiversity are anticipated in the wake of logging commissions, hydroelectric dams and other mining of minerals and resources.

The biodiversity characteristic of each extinction, especially the diversity of fauna and subdominant plant forms, is a function of abiotic factors and the biomass productivity of the dominant vegetation.

Sometimes an entire biome may be targeted for protection, especially under an individual nation's biodiversity action plan.

Humans have fundamentally altered global patterns of biodiversity and ecosystem processes.

The high level of biodiversity creates a high level of biological activity, which has attracted human activity for thousands of years.

This destruction alters the functioning of the ecosystem and can permanently alter species composition and biodiversity.

illegal logging activities throughout the country and strip mining for gems in the western region along the border with Thailand have resulted in habitat loss and declining biodiversity ( in particular, destruction of mangrove swamps threatens natural fisheries ); soil erosion ; in rural areas, most of the population does not have access to potable water ; declining fish stocks because of illegal fishing and overfishing

Like all Central American countries, Costa Rica is considered part of a biodiversity hotspot.

According to the INBio, about 4. 5 % of the world's biodiversity can be found in Costa Rica.

There was a progressive decline in biodiversity during the Maastrichtian stage of the Cretaceous period prior to the suggested ecological crisis induced by events at the K – Pg boundary ( K – T boundary ).

Furthermore, biodiversity required a substantial amount of time to recover from the K – T event, despite the probable existence of an abundance of vacant ecological niches.

After the K – Pg extinction event, biodiversity required substantial time to recover, despite the existence of abundant vacant ecological niches.

Central America is part of the Mesoamerican biodiversity hotspot, which extends from northern Guatemala through central Panama.

# conservation of biological diversity ( or biodiversity );