Search results for grassland ecosystem

Environment Apr 22, 2019

To save life on Earth, here's the $100 billion-a-year solution

There have been five mass extinctions in the history of the Earth. But in the 21st century, scientists now estimate that society must urgently come to grips this coming decade to stop the very first human-made biodiversity ...

Archaeology & Fossils Apr 18, 2019

Fossils found in museum drawer in Kenya belong to gigantic carnivore

Paleontologists at Ohio University have discovered a new species of meat-eating mammal larger than any big cat stalking the world today. Larger than a polar bear, with a skull as large as that of a rhinoceros and enormous ...

Ecology Mar 27, 2019

Mount Kilimanjaro: Ecosystems in global change

2019 marks the 250th anniversary of Alexander von Humboldt. He was one of the first naturalists to document the distribution and adaptation of species on tropical mountains in the 19th century. Humboldt also observed that ...

Archaeology & Fossils Apr 01, 2019

Last of the giants: What killed off Madagascar's megafauna a thousand years ago?

Giant 10-foot-tall elephant birds, with eggs eight times larger than an ostrich's. Sloth lemurs bigger than a panda, weighing in at 350 pounds. A puma-like predator called the giant fosa.

Ecology Apr 09, 2019

Plant diversity increases insect diversity

The more plant species that grow in grasslands and forests, the more insect species that find a habitat there. However, the presence of more plant species not only increases the number of insect species, but also the number ...

Archaeology & Fossils Apr 08, 2019

Humans are not off the hook for extinctions of large herbivores – then or now

What triggered the decline and eventual extinction of many megaherbivores, the giant plant-eating mammals that roamed the Earth millions of years ago, has long been a mystery. These animals, which weighed 1,000kg or more ...

Ecology Mar 26, 2019

Why endangered species matter

The Endangered Species Act (ESA) was established in 1973 to protect "imperiled species and the ecosystems upon which they depend" and help them recover.

Ecology Mar 25, 2019

Study finds climate warming accelerates tallgrass prairie bioiversity

A University of Oklahoma study on climate warming in an Oklahoma tallgrass prairie has implications for understanding and predicting ecological consequences of climate change and ecosystem management strategies. More rapid ...

Earth Sciences Mar 29, 2019

California 'browning' more in the south during droughts

Like a climate chameleon, California turned brown during the 2012–16 drought, as vegetation dried or died off.

Ecology Jan 23, 2019

Courage to aim for less cleanliness?

Do the same laws of biodiversity which apply in nature also apply to our own bodies and homes? If so, current hygiene measures to combat aggressive germs could be, to some extent, counterproductive. So writes an interdisciplinary ...

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