Feb 202017
 
The tiny transmitters tracking birds from North to South America

The Motus Wildlife Tracking System is a pioneering programme of Bird Studies Canada (BSC, BirdLife Partner), in partnership with collaborating researchers and organisations. Motus (which means “movement” in Latin) utilises miniaturised radio transmitters weighing less than 0.3g, which can be unobtrusively fitted onto the backs of birds, including small passerines such as warblers. (Even smaller […]

Feb 162017
 
Winter migration of monarch butterflies to Mexico drops after one-year recovery

The number of monarch butterflies wintering in Mexico dropped by 27% this year, reversing last year’s recovery from historically low numbers, according to a study by government and independent experts released Thursday. The experts say the decline could be due to late winter storms last year that blew down more than 100 acres (40 hectares) […]

Jan 242016
 
POLL: Should the US FWS be sued for failing to protect the Monarch butterfly?

Over the past two decades, populations of America’s iconic orange and black monarch butterflies have declined by more than 80 percent. Now, two environmental groups — the The Center for Biological Diversity and Center for Food Safety — have filed a notice of intent to sue the U.S. Fish and Wildlife Service for failing to […]

Sep 282014
 
'Canary in the cornfield': Monarch butterfly may get threatened species status

Monarch butterflies were once a common sight throughout the North American heartland. In Mexico, where they overwinter, single trees would often be covered in thousands. But declines in milkweed – their caterpillars’ only source of food – have led to a 90 percent decline in monarch numbers. Now, the U.S. Fish and Wildlife Service (USFWS) […]

Jul 182013
 
Losing our monarchs: iconic monarch butterfly down to lowest numbers in 20 years

In the next few months, the beating of fragile fiery orange and black wings will transport the monarch butterfly south. But the number of monarch butterflies (Danaus plexippus) reaching their final destination has steadily declined, dropping to its lowest level in two decades last winter, according to a recent survey. The insect’s journey begins in […]