The Leibniz-IZW regular publishes press releases on key findings and insights from its research and on events, awards or personalia. The press releases are distributed directly to journalists on our press release distribution mailing list. Press releases are also disseminated through the distribution services Informationsdienst Wissenschaft, AlphaGalileo and EurekAlert. Are you interested in receiving our press releases directly via e-mail? In this case please send us an email to seet@izw-berlin.de.
Current press releases
Orioles adapt the location of their wintering grounds to weather condition, analysis of historical feathers show
The ability to adjust to changing environmental conditions is an essential prerequisite for species to cope with climate change. Using stable isotope analysis, a team of scientists led by the Leibniz Institute for Zoo and Wildlife Research (Leibniz-IZW) now unravelled the link between wintering destinations of Eurasian Golden Oriole migrations and rainfall intensities in potential wintering grounds in sub-Saharan Africa. Analysing historical feathers from 1818 to 1971, they identified two distinct wintering areas whose use depended on prevailing rainfall intensity. The link between the key migratory overwintering destination and local precipitation demonstrates the dependence of these birds on rainfall in sub-Saharan Africa – a parameter that might change with climate change and related processes of desertification. The results are published in the scientific journal “Global Change Biology”.
BioRescue creates another three northern white rhino embryos, bringing total to 12
In another exciting step towards the future of the northern white rhino, three more pure northern white rhino embryos have been created by the global team of scientists and conservationists working to save the species. This time, they were also able to use sperm from a different bull, improving the genetic diversity of the embryos.
Read more … BioRescue creates another three northern white rhino embryos, bringing total to 12
Sperm migration in the genital tract – computer simulations identify key factors for reproductive success
A research team at the Humboldt University Berlin and the Leibniz Institute for Zoo and Wildlife Research (Leibniz-IZW) developed an agent-based computer model to simulate the journey of sperm cells through the female genital tract. Key factors for a successful transit could be identified without the use of animal experiments and were published in the scientific journal "PLoS Computational Biology".
Emotions and cultural importance are most important for the acceptance of large carnivore management strategies
Emotions towards and cultural importance of large carnivores are better predictors of the acceptance of management strategies by local communities than the extent of livestock depredation. This is the result of a new interdisciplinary investigation led by scientists from the Leibniz Institute for Zoo and Wildlife Research (Leibniz-IZW). They conducted 100 questionnaires with Maasai pastoralists in Ngorongoro Conservation Area, Tanzania, focusing on three large carnivore species (spotted hyenas, lions and leopards) and three management strategies (no action, relocation and lethal control). An emphasis on socio-cultural variables is key to understanding human-carnivore relationships and challenges the traditional focus on livestock depredation in human-carnivore conflict research, the scientists conclude. The findings are published in the open access scientific journal “Frontiers in Conservation Science”.
New tools for pandemic prevention research: DNA sequencing from water and leech bloodmeals reveal viruses circulating in the wild
In a new scientific investigation headed by the German Leibniz Institute for Zoo and Wildlife Research (Leibniz-IZW), water from African and Mongolian waterholes as well as bloodmeals from Southeast Asian leeches were assessed for the ability to retrieve mammalian viruses without the need to find and catch the mammals. The scientists analysed the samples using high throughput sequencing to identify known viruses as well as viruses new to science. Both approaches proved to be suitable tools for pandemic prevention research as they allow finding and monitoring reservoirs of wildlife viruses. For example, a novel coronavirus most likely associated with Southeast Asian deer species was identified. The results are published in the scientific journal “Methods in Ecology and Evolution”.
Juvenile white-tailed sea eagles stay longer in their parental territory than nest protection periods
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 “IBIS - International Journal of Avian Science”, the scientists therefore recommend an extension of the currently existing nest protection periods by one month.
Unravelling the mysteries of seasonal reproduction in lynx
Most of the existing 39 cat species are threatened. Successful reproduction under breeding conditions is hindered by a lack of knowledge and appropriate techniques. Scientists from the German Leibniz Institute for Zoo and Wildlife Research (Leibniz-IZW) succeeded in testing the influence of selected hormones on cell cultures of domestic cats and translated the methods to wild cat species. This is a further milestone in studying the reproductive mechanisms of wild cat species and will help to improve assisted reproduction techniques. The scientific findings are published in the journals “Biology of Reproduction” and “Animals”.
Read more … Unravelling the mysteries of seasonal reproduction in lynx
Cryptic sense of orientation of bats localised – the sixth sense of mammals lies in the eye
Mammals see with their eyes, hear with their ears and smell with their nose. But which sense or organ allows them to orient themselves on their migrations, which sometimes go far beyond their local foraging areas and therefore require an extended ability to navigate? Scientific experiments led by the Leibniz Institute for Zoo and Wildlife Research (Leibniz-IZW), published together with Prof. Richard A. Holland (Bangor University, UK) and Dr. Gunārs Pētersons (Latvia University of Life Sciences and Technologies) now show that the cornea of the eyes is the location of such an important sense in migrating bats. If the cornea is anaesthetised, the otherwise reliable sense of orientation is disturbed while light detection remains unimpaired. The experiment suggests the localisation of a magnetic sense in mammals. The paper is published in the scientific journal "Communications Biology".