Sometimes, eradicating an invasive species can backfire.
In this case, getting rid of some nonnative cordgrass impacted an already endangered water bird called the Ridgway’s rail (formerly the California clapper rail).
In a new study published May 30 in the journal Science, researchers at the University of California, Davis, examine that conundrum now taking place in the San Francisco Bay. The California clapper rail — a bird found only in the bay — has come to depend on an invasive salt marsh cordgrass, hybrid Spartina, for nesting habitat. Its native habitat has slowly vanished over the decades, largely due to urban development and invasion by Spartina…
Photo by John Stumbos, senior writer, UC Davis
Snowflake Moray (Echidna nebulosa)
Also known as the clouded moray, the snowflake moray is
surprisinglya species of moray eel (Muraenidae) which is widespread throughout the Indo-Pacific region, from the eastern coast of Africa thorough Micronesia including the Red Sea and Hawaii. It also occurs in the eastern Central Pacific, from southern Baja California, Mexico, and from Costa Rica to northern Colombia. Like most morays, snowflake morays are carnivorous and will feed on a variety of fish and crustaceans.
New population of Critically Endangered parakeets found in Brazil
Researchers supported by the Conservation Leadership Programme have uncovered a small population of grey-breasted parakeets nesting on a mountain in north-east Brazil.
by Sarah Rakowski
A team of scientists searching for remnant populations of the Critically Endangered grey-breasted parakeet has found a small group nesting in a small crevice on the top of a rugged mountain ridge in north-east Brazil.
Only around 300 of these birds are thought to remain in the wild, all of which are found in the Brazilian state of Ceará.
As part of a national action plan for the species, researchers from local organisation Aquasis have searched more than 20 sites for signs of the parakeet, focusing their efforts on areas identified as having high habitat potential or historical sightings.
This new discovery brings the total number of known groups up to three. By comparison, historical data show that at least 15 separate populations once existed…
(read more: Fauna & Flora International)
photos by Fabio Nunes and Aquasis
Large mammals are being lost from Brazil’s Atlantic rainforest much faster than expected, according to a recent study.
The study, undertaken by scientists from Brazil and the UK, looked at 18 mammal species in 196 forest fragments, and compared their current populations to estimates of their population densities before Europeans colonised the region about 500 years ago.
The results of the study, published in the journal PLoS One, showed that mammals are being lost from forest fragments at least twice as fast as previous estimates suggested.
Of over 3,500 mammal populations estimated to have originally lived in the study area, only about 22% remain today. Among the species being lost are large, charismatic mammals such as the jaguar, lowland tapir, northern muriqui and giant anteater, while the white-lipped peccary has been completely wiped out in the region…
(read more: Blog - Arkive.org)
10 incredible desert animals that adapted to thrive
A desert may seem like a dry and desolate place — but amidst the sand and rocks, select species thrive. Of course, not all of them are visible at first glance, since many have adapted ingenious methods of camouflage, and some of them only come out at night. Enduring terrain with scarce water and extreme temperatures, these animals are incredible examples of survival.