Interstate 35 lies at the heart of a vast circulatory system, one of the massive transportation arteries that enable Americans to move long distances quickly. The highway also cuts through the heart of the eastern monarch’s central flyway, which produces the vast majority of brilliant orange and black butterflies that undertake one of the world’s most grueling insect migrations.

En route from as far away as southern Canada to their wintering grounds in steep, fir-clad slopes northwest of Mexico City, monarchs must fly through numerous metropolitan areas strung along the 1,568-mile river of asphalt, including Minneapolis-St. Paul, Kansas City, and Dallas-Fort Worth. Once a vast expanse of prairie, today the I-35 corridor not only bisects cities and suburbs but also passes through the Corn Belt, an ever-expanding patchwork of corn and soybean monocultures laced with the pesticide glyphosate. According to Chip Taylor, director of Monarch Watch and a biologist at the University of Kansas, the resulting loss of monarch habitat has been “tremendous.”

Invasive ascidians — sac-like marine invertebrate filter feeders — are nuisance organisms that present a global threat. They contribute to biodiversity loss, ecosystem degradation and impairment of ecosystem services around the world.

A new Tel Aviv University study finds that ships play an unknowing but dominant role in introducing and dispersing these tough-shelled non-indigenous organisms into new environments. The research showed that these marine invertebrates hitch a ride on half of all the marine vessels passing through Israel's Mediterranean coast.

New study showed relief from current dry spell unlikely within next 10,000 years

No bells tolled when the last Catarina pupfish on Earth died. Newspapers didn’t carry the story when the Christmas Island pipistrelle vanished forever.

The presence of the carp, a freshwater invasive species spread worldwide, is alarmingly reducing the populations of diving ducks and waterbirds, according to a study published in the journal Biological Conservation by the researchers Alberto Maceda Veiga, from the Biodiversity Research Institute of the University of Barcelona (IRBio) and Raquel López and Andy J. Green, from the Doñana Biological Station (EBD-CSIC).

This is the first study which clearly shows the ecological impact of the carp on water birds in Mediterranean shallow lakes, and it warns about the dramatic effect of this invasive species on other species such as the white-headed duck (Oxyura leucocephala) and the red-crested pochard (Aythya farina), classified as endangered species by the International Union for Conservation of Nature (UICN).

Biodiversity loss is one of the driving factors in ecosystem change, on par with climate change and human development. When one species, especially a large predator, disappears from an area, other populations will be affected, sometimes changing entire landscapes.

Iron-rich meltwater from Greenland’s glaciers are helping fuel a summer bloom of phytoplankton.

Spilt crude oil has repeatedly polluted and even destroyed marine ecosystems. An effective measure would be to remove spilt oil slicks by absorption into a separable solid phase. As Indian scientists now report in the journal Angewandte Chemie, congelation of the oil to a rigid gel within impregnated cellulose and scooping the particles out is possible.

"Now I know mosses have a whole secret world,” says Jean, a University of Saskatchewan biology PhD student. “It’s like discovering a mini forest in the forest.” 

Not just pretty, mosses contribute up to 30 per cent of Canada’s boreal forest total growth every year, while maintaining the organic floor necessary for evergreens to grow. 

As the infamous floating “garbage patch” churns up bits of plastic in the tropical Pacific Ocean, a University of Washington undergraduate has discovered a related problem much closer to home: nearly invisible bits of plastic on Puget Sound beaches.

As a year-long project toward a UW bachelor’s degree, the oceanography major visited 12 beaches around Puget Sound to tally the number of microplastics, generally classified as fragments between 0.3 and 5 millimeters (1/100 to 1/5 of an inch) or smaller than a grain of rice.