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Warm oceans helped first human migration from Asia to North America(图)
Warm oceans first human migration Asia to North America
2020/12/31
New research reveals significant changes in the circulation of the North Pacific Ocean and their impact on the initial migration of humans from Asia to North America.The U.S. National Science Fou...
NSF awards fifth round of grants to enhance America's biodiversity collections
NSF fifth round of grants America's biodiversity collections
2015/9/9
Slime molds, smut fungi, powdery mildew: These are some of the millions of microfungi documented in biological institutions across America.These ubiquitous microscopic organisms play important ecologi...
Dirt mounds made by termites in Africa, South America, Asia could prevent spread of deserts
Dirt mounds termites Africa South America Asia could prevent spread of deserts
2015/3/4
Termites might not top the list of humanity's favorite insects, but new research suggests that their large dirt mounds are crucial to stopping deserts from spreading into semi-arid ecosystems.The ...
The genera of diaspinae of North America and the genus lepidosaphes
genera of diaspinae North America genus lepidosaphes
2015/1/24
The genera of diaspinae of North America and the genus lepidosaphes.
A NEW SPECIES OF MOROPUS (MAMMALIA, PERISSODACTYLA, CHALICOTHERIODEA) IN THE BATESLAND FORMATION, GREAT PLAINS AREA OF NORTH AMERICA
Great Plains Batesland Formation Miocene
2015/1/4
The chalicothere Moropus was a rare perissodactyl present in the Great Plains region of North America through much of the Miocene. A temporal gap in named species of Moropus is present in the early He...
Hummingbird evolution soared after they invaded South America 22 million years ago
Hummingbird evolution soared after they invaded South America 22 million years ago
2014/4/16
The National Science Foundation (NSF) is an independent federal agency that supports fundamental research and education across all fields of science and engineering. In fiscal year (FY) 2014, its budg...
A survey of freshwater annelids in the Peruvian Amazon, South America
clitellate leech glossiphoniid oligochaete Pacaya River
2009/6/3
A floating meadow habitat within the Pacaya-Samiria National Reserve (Loreto, Peru, South America) was sampled for
annelids during September, 2002 as part of a multidisciplinary effort aimed at docum...
Aquatic Oligochaeta (Annelida: Clitellata) of the Department of Antioquia, Colombia, South America
Aquatic Oligochaeta Enchytraeidae Naididae Naidinae Pristininae Tubificinae Opistocystidae Glossoscolecidae Lumbricidae taxonomy Antioquia Colombia
2009/6/3
Surveys for freshwater Oligochaeta (Annelida, Clitellata) conducted during the years 2002-2006 increase to 10 the
number of species recorded from lentic and lotic habitats in the Department of Antioq...
A catalogue of aquatic microdrile oligochaetes (Annelida: Clitellata) from South America
Alluroididae Capilloventridae Haplotaxidae Naididae (including Tubificidae s.str.) Narapidae Oligochaeta Opistocystidae Phreodrilidae aTiguassuidae
2009/6/3
A catalogue of aquatic microdrile oligochaetes exclusive of Enchytraeidae produced 171 nominal taxa (species and
subspecies) reported to date from South America. This number may be compared to the ...