- 8 Concepts, Types and Distribution of Biodiversity
Species diversity determines number of different species that are represented in a given community (a dataset) which incorporates both species richness and the evenness of species’ abundances the richer the variety of species the larger and more complex is the food chains and abundance is the biodiversity and more stable ecosystem
- Antarctica - Places in the News | Library of Congress
Speculation over the existence of a southern continent was not confirmed until the early 1820s when British and American commercial operators and British and Russian national expeditions began exploring the Antarctic Peninsula region It was not until 1840 that Antarctica was established as a continent, rather than a group of islands
- Multi-modal survey of Adélie penguin mega-colonies reveals . . .
Our survey reveals that the Danger Islands host 751,527 pairs of Adélie penguins, more than the rest of AP region combined, and include the third and fourth largest Adélie penguin colonies in
- Reptile Pictures Facts | National Geographic
Reptiles are air-breathing vertebrates covered in special skin made up of scales, bony plates, or a combination of both They include crocodiles, snakes, lizards, turtles, and tor- toises All
- What Is Antarctica? (Grades 5-8) - NASA
In the winter, Antarctica is on the side of Earth tilted away from the sun, causing the continent to be dark Antarctica is considered a desert because it receives very little rain or snowfall The small amount of snow that does fall does not melt but builds up over hundreds and thousands of years to form large, thick ice sheets
- Pantala flavescens - Wikipedia
It is considered to be the most widespread dragonfly on the planet, with good population on every continent except Antarctica, although rare in Europe [ 1 ] [ 5 ] Globe skimmers make an annual multigenerational journey of some 18,000 km (about 11,200 miles); to complete the migration, individual globe skimmers fly more than 6,000 km (3,730
- Coronavirus World Map: Tracking the Global Outbreak
This chart shows how cases per capita have changed in different parts of the world What to Know About the Bivalent Booster Shots The current available boosters target the Omicron subvariants BA 4
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