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The white-tailed sea eagle is known for reacting sensitively to human disturbances. Forestry and agricultural activities are therefore restricted in the.
Credit: Marc Engler/Leibniz-IZW
The white-tailed sea eagle is known for reacting sensitively to human disturbances. Forestry and agricultural activities are therefore restricted in the immediate vicinity of the nests. However, these seasonal protection periods are too short in the German federal States of Brandenburg (until August 31) and Mecklenburg-Western Pomerania (until July 31), as a new scientific analysis by a team of scientists from the Leibniz Institute for Zoo and Wildlife Research (Leibniz-IZW) suggests. Using detailed movement data of 24 juvenile white-tailed sea eagles with GPS transmitters, they were able to track when they fledge and when they leave the parental territory: on average, a good 10 and 23 weeks after hatching, respectively. When forestry work is allowed again, most of the young birds are still near the nest. In a publication in the journal
Macquarie University/The Lighthouse
The fatal impact of heatwaves on the eggs of one of Australia’s most abundant birds species has raised the alarm for Macquarie University researchers.
In a remote area of north-western NSW, scientists have been studying the local population of zebra finches – one of the most widespread and abundant birds in Australia – for more than 16 years.
Danger zone: Zebra finches are abundant, and in an average year 80 per cent of chicks survive … but not during heatwave, the researchers found.
In the summer of 2017, they recorded a catastrophic event. A heatwave with temperatures over 40 degrees for several days baked all the embryos in their eggs causing complete reproductive failure for this remarkably resilient bird.