The littoral zone generally has high productivity and high biodiversity. The limnetic zone is the top layer of lake water away from shore. This zone covers much of the lake’s surface, but it is only as deep as sunlight can penetrate.
What areas have higher biodiversity?
#1: Brazil. Brazil is the Earth’s biodiversity champion. Between the Amazon rainforest and Mata Atlantica forest, the woody savanna-like cerrado, the massive inland swamp known as the Pantanal, and a range of other terrestrial and aquatic ecosystems, Brazil leads the world in plant and amphibian species counts.
What is the biodiversity of lakes?
Biodiversity Conservation in Lake Watersheds
Lakes provide critical habitat for an amazing array of plants and animals including bacteria, fungi, algae, plankton, mussels, snails, crustaceans, insects, fish, amphibians, reptiles, birds and mammals.
Do lakes have a high biodiversity?
Ecosystems that are based upon freshwater, such as lakes and rivers, also have high biodiversity. Habitats that are both marine and freshwater (estuaries and salt marshes) are some of the harshest areas on the planet to live. Therefore, the biodiversity in these areas is quite low.
Which region has greatest diversity?
Species diversity is greatest in the tropics, particularly in tropical forests and coral reefs. The Amazon basin in South America has the largest area of tropical forests.
What places most likely have low biodiversity?
The arctic regions of the world have the least biodiversity because plants don’t survive in the extreme cold and ice that cover these regions year-round. However, life does exist in the arctic regions, mostly affiliated with the seas that surround them.
Which of the following is a part of a lake ecosystem?
A pond or lake ecosystem includes biotic (living) plants, animals and micro-organisms, as well as abiotic (nonliving) physical and chemical interactions. Pond and lake ecosystems are a prime example of lentic ecosystems.
What is freshwater biodiversity?
“freshwater biodiversity”, at the species level, includes life which is very obviously living in freshwater but also includes life which is adapted to live in or around freshwater habitats.
How do lakes support biodiversity?
Lakes provide critical habitat for fish, crustaceans, molluscs, turtles, amphibians, birds, mammals, insects and aquatic plants, and support biodiversity on surrounding land. Due to the isolation between most lakes, many lakes harbor high numbers of endemic species, existing nowhere else on earth.
Which is the most diverse ecosystem?
Forests are the most diverse ecosystems on land, because they hold the vast majority of the world’s terrestrial species. Some rain forests are among the oldest ecosystems on Earth.
What are the three zones of a lake?
A typical lake has three distinct zones (limnetic, littoral and the benthic zone; Fig. 11) of biological communities linked to its physical structure.
What is high biodiversity?
High biodiversity is a habitat or ecosystem that has a high number of different species.
In which forest the highest biodiversity is found?
Option A: The maximum biodiversity is found in tropical rain forests as they are less seasonal, they are neither too hot nor too cold and are more predictable. Therefore, this is the correct option. These kinds of environments help in promoting niche specialization and also leads to greater species diversity.
Which of the following country has highest biodiversity?
Brazil is the only country with highest biodiversity. Biodiversity accounts one-tenth of the world’s overall species.
Which species has most diversity?
The sponges, Poriferans, were found to have some of the greatest diversity of both body size and species, ranging from microscopic to the size of an automobile. Molluscs (snails, squid, clams, chitons), and Arthropods (crabs, insects, lobsters, copepods) also showed great diversity.