How do you know if biodiversity is high or low?
Low biodiversity is when there are a few prominent species and a low number of other species within the habitat. High biodiversity is a habitat or ecosystem that has a high number of different species.
What is ricefield ecosystem?
In the irrigated rice ecosystem, the rice fields have assured water supply for one or more crops a year. Irrigated lands cover over half of the world’s rice lands and produce about 75% of the world’s rice supply. … Less than 13% of the world’s rice land is upland rice.
Where is biodiversity The highest and lowest?
Tropical forests are widely considered to have the greatest species diversity of the terrestrial biomes and the tundra biome has the least.
What are examples of high and low biodiversity?
Examples of places with high biodiversity include rainforests and coral reefs, because they have many different species in an area. Less biodiverse areas include deserts, icy areas, and the bottom of the ocean. Organisms do exist in those places, but not as many as places with higher biodiversity.
Which ecosystem has high biodiversity low biodiversity?
Estuarine areas (where rivers meet seas and oceans) have high biodiversity compared to other areas. Trophical rainforests are rich in terms of biodiversity. Arid and semiarid areas have low biodiversity. Deserts, for example, contain limited numbers of species.
What do you know about biodiversity?
Biodiversity is a term used to describe the enormous variety of life on Earth. … Biodiversity refers to every living thing, including plants, bacteria, animals, and humans. Scientists have estimated that there are around 8.7 million species of plants and animals in existence.
What are levels of biodiversity?
Biodiversity is usually explored at three levels – genetic diversity, species diversity and ecosystem diversity. These three levels work together to create the complexity of life on Earth.
What is the most commonly managed ecosystem for rice cultivation in the Philippines?
Lowland rainfed and irrigated rice are the most important rice ecosystems, accounting for ca. 65% and 20% of national rice harvested area, respectively (Mutert and Fairhurst, 2002).