Insects in southern Africa: How many species are there? Presents a chart that estimates the number of families, genera and species in each order of southern African insects. Includes the orders of archaeognatha ... CH Scholtz,SL Chown - 《South African Journal of Science》...
How did the Earth get so manyspecies(物种)? For thousands ofyears, people wondered. In the 1840s,one naturalist had an idea. His namewas Charles Darwin. He spent his whole life studying animalsand insects (昆虫). Darwin thought that new species developedslowly, as populations of animals cha...
We live on a planet where the majority of our species are insects. Considering that there are so many insects on this planet, it is only logical that they would have a major role to play in maintaining the ecosystem. A large number of insects are incredibly important to the planet through...
Though taxonomists have been cataloguing plants and animals for more than 250 years, they still have no exact answer to the question, “How many species are on Earth?”“It’s a very simple question, but we have no simple answer,” Fisher said. One of the reasons we can’t get an...
Renewed interest in further exploration and taxonomy is required if this significant gap in our knowledge of life on Earth is to be closed. Citation: Mora C, Tittensor DP, Adl S, Simpson AGB, Worm B (2011) How Many Species Are There on Earth and in the Ocean? PLoS Biol 9(8): e...
"It is the same with biodiversity. Humanity has committed itself to saving species from extinction, but until now we have had little real idea of even how many there are." Dr. Worm notes that the recently-updated Red List issued by the International Union for the Conservation of Nature asse...
Interbreeding between animals of different lineages is widespread in nature—and may reveal some of the mysteries of evolution.
insectsspecies richnessSimpson's query (Evol., 1952) as to the number of species during earth's history is addressed once again. Some possible mechanistic contraints are put on the problem to distinguish the effects on species evolution from punctuate forces (geological selection pressure generated ...
Earth's biological diversity is being fast decline of many species facing extinction. Threat to the survival of wild animals and plants is a major factor in habitat loss, business development, and wild animals and plants and their products in international trade. Resources are limited, it is nec...
the large mounds are not just heaps of dirt but in fact incorporate elaborate ventilation holes and air ducts and air pockets, which drive natural ventilation through convection. And remember, these structures are build by a million tiny insects that behave in an organized manner to come up with...