Coral reefs have high levels of biodiversity because of their abundant microhabitats, high levels of nutrients, and high levels of sunlight and warm…
Do coral reefs have high biodiversity?
The variety of species living on a coral reef is greater than in any other shallow-water marine ecosystem, making reefs one of the most diverse ecosystems on the planet. Covering less than one percent of the ocean floor, coral reefs support an estimated 25 percent of all known marine species.
Why are coral reefs so diverse?
Coral reefs are one of the most biologically diverse ecosystems on earth, rivaled only by tropical rain forests. … Competition for resources such as food, space and sunlight are some of the primary factors in determining the abundances and diversity of organisms on a reef.
How are the coral reefs a great environment for biodiversity?
Coral reefs are believed by many to have the highest biodiversity of any ecosystem on the planet—even more than a tropical rainforest. … They scrape at the coral to get to the small algae (zooxanthellae) living inside the coral polyp, then grind up the coral skeleton with teeth in their throats and excrete it as sand.
Why are coral reefs highly productive?
Coral reefs’ high productivity has been attributed mainly to photosymbioses between the coral animal and algae of the family Symbiodiniaceae, with recognition that the host can increase algal photosynthesis by concentrating nutrients and enhancing the efficiency of light absorption.
Why do coral reefs contain such astonishing biological diversity and density?
5. If tropical ocean generally supports very little life, why do coral reefs contain such astonishing biological diversity and density? … These single-celled plant-like organisms facilitate the rapid biochemical deposition of calcium carbonate into the coral skeleton.
What makes an ecosystem with high biodiversity low biodiversity?
When an ecosystem has high biodiversity it is always more stable than an ecosystem that has low biodiversity. … 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 type of biodiversity is supported by coral?
It provides habitat for nearly 9,000 species of marine life—and that’s just the (relatively) easy to count ones! The reef’s rich biodiversity helps it to maintain a stable and healthy coral reef system. Another way to look at biodiversity is from the perspective of the ‘jobs’ that organisms do within the system.
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.
How does coral bleaching affect biodiversity?
A devastating decline in coral cover caused a parallel decline in fish biodiversity, both in marine reserves and in areas open to fishing. Over 75% of reef fish species declined in abundance, and 50% declined to less than half of their original numbers.
How does coral bleaching affect biodiversity in the Great Barrier Reef?
Even at lower concentrations of atmospheric CO2, reefs are now eroding faster than new corals can form. Loss of biodiversity is another expected impact of global warming on the Great Barrier Reef. As corals die off, the number of species that the reef can support declines, and local extinctions can occur.
Why is biodiversity important to marine?
As environmental conditions change, species need to evolve and adapt to these changing conditions. … Ocean observations that monitor biodiversity and measure species distribution and density in marine ecosystems enable policy makers to respond to, protect and manage ecosystems that are under threat.
What is the productivity of coral reefs?
Gross primary productivity is about 2,000 g C/mz/yr. This is in impressive agreement with re- sults obtained on the atoll reefs, which are the only previous measurements of coral reef productivity. All three results are considerably higher than determinations OF productivity of open ocean waters.
What is the coral reefs climate?
Coral reefs mainly form in the tropics since they favor temperatures between 70- 80 degrees Fahrenheit. They also tend to develop well in areas with a lot of sunlight penetration. Coral reefs need sunlight since individual polyps, which contribute to the growth of corals, contain symbiotic algae.
What is coral bleaching caused by?
The leading cause of coral bleaching is climate change. A warming planet means a warming ocean, and a change in water temperature—as little as 2 degrees Fahrenheit—can cause coral to drive out algae. Coral may bleach for other reasons, like extremely low tides, pollution, or too much sunlight.