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The Leibniz-IZW is an internationally renowned German research institute. It is
part of the Forschungsverbund Berlin e.V. and a member of the Leibniz
Association. Our goal is to understand the adaptability of wildlife in the
context of global change and to contribute to the enhancement of the survival of
viable wildlife populations. For this purpose, we investigate the diversity of
life histories, the mechanisms of evolutionary adaptations and their limits,
including diseases, as well as the interrelations of wildlife with their
environment and people. We use expertise from biology and veterinary medicine in
an interdisciplinary approach to conduct fundamental and applied research – from
the molecular to the landscape level – in close dialogue with the public and
stakeholders. Additionally, we are committed to unique and high-quality services
for the scientific community.

+++ Current information on African swine fever: The Leibniz-IZW conducts
research on the population dynamics, on models of disease outbreaks in wild
boars and on the ecology and human-wildlife interaction in urban areas. African
swine fever is a reportable disease in domestic swine and therefor is the
purview of the respective federal state laboratories and
the Friedrich-Loeffler-Institut (Federal Research Institute for Animal Health)
FLI. +++


NEWS

29.03.2024 08:00

Spotted hyena hunts for small bird at a waterhole in Namibia (photo: Miha
Krofel)


SMALL BIRDS SPICE UP THE ALREADY DIVERSE DIET OF SPOTTED HYENAS IN NAMIBIA

Hyenas are generalist predators (and scavengers) with a broad range of prey
species. They are known for hunting (or scavenging) larger mammals such as
antelopes and occasionally feed on smaller mammals and reptiles. Being flexible
in the choice of prey is a strategy of generalists – and this even extends to
small passerine birds, as scientists from the Leibniz Institute for Zoo and
Wildlife Research (Leibniz-IZW) and the University of Ljubljana observed in
Namibia: Spotted hyenas pursued red-billed queleas, picked them from the ground
or the surface of a waterhole and swallowed them whole, at a success rate of
approximately one bird every three minutes. These observations were described
for the first time in word, photos and videos in the scientific journal “Food
Webs”.

Read more … Small birds spice up the already diverse diet of spotted hyenas in
Namibia

28.03.2024 17:00

Spotted hyenas in the Serengeti National Park in Tanzania (photo: Sarah
Benhaiem)


WHEN INEQUALITY IS MORE THAN “SKIN-DEEP”: SOCIAL STATUS LEAVES TRACES IN THE
EPIGENOME OF SPOTTED HYENAS IN TANZANIA

A research consortium led by scientists from the Leibniz Institute for Zoo and
Wildlife Research (Leibniz-IZW) provide evidence that social behaviour and
social status are reflected at the molecular level of gene activation
(epigenome) in juvenile and adult free-ranging spotted hyenas. They analysed
non-invasively collected gut epithelium samples from both high-ranking and
low-ranking female hyenas and showed that rank differences were associated with
epigenetic signatures of social inequality, i.e., the pattern of activation or
switching off of genes that regulate important physiological processes such as
energy conversion and immune response in several genome regions. The results,
published in the scientific journal “Communications Biology”, contribute to a
better understanding of the role of epigenetic mechanisms in the interplay of
social, environmental and physiological factors in the life of a highly social
mammal.

Read more … When inequality is more than “skin-deep”: Social status leaves
traces in the epigenome of spotted hyenas in Tanzania

05.02.2024 05:00

A rodent of the Melomys genus (photo by Carlos Bocos)


A RARE RECENT CASE OF RETROVIRUS INTEGRATION: AN INFECTIOUS GIBBON APE LEUKAEMIA
VIRUS IS COLONISING A RODENT’S GENOME IN NEW GUINEA

Retroviruses are viruses that multiply by incorporating their genes into the
genome of a host cell. If the infected cell is a germ cell, the retrovirus can
then be passed on to the next generation as an “endogenous” retrovirus (ERV) and
spread as part of the host genome in that host species. In vertebrates, ERVs are
ubiquitous and sometimes make up 10 per cent of the host genome. However, most
retrovirus integrations are very old, already degraded and therefore inactive –
their initial impact on host health has been minimised by millions of years of
evolution. A research team led by the Leibniz Institute for Zoo and Wildlife
Research (Leibniz-IZW) has now discovered a recent case of retrovirus
colonisation in a rodent from New Guinea, the white-bellied mosaic-tailed rat.
In a paper in the scientific journal "Proceedings of the National Academy of
Sciences", they describe this new model of virus integration. The observations
on this process will help to improve our understanding how retroviruses rewrite
host genomes.

Read more … A rare recent case of retrovirus integration: An infectious gibbon
ape leukaemia virus is colonising a rodent’s genome in New Guinea

24.01.2024 12:00

BioRescue embryo transfer on September 24, 2024, in Kenya (photo: Jan Zwilling)


WORLD’S FIRST SUCCESSFUL EMBRYO TRANSFER IN RHINOS PAVES THE WAY FOR SAVING THE
NORTHERN WHITE RHINOS FROM EXTINCTION

BioRescue, an international consortium of scientists and conservationists,
succeeded in achieving the world’s first pregnancy of a rhinoceros after an
embryo transfer. The southern white rhino embryo was produced in vitro from
collected egg cells and sperm and transferred into a southern white rhino
surrogate mother at the Ol Pejeta Conservancy in Kenya on September 24, 2023.
The BioRescue team confirmed a pregnancy of 70 days with a well-developed 6.4 cm
long male embryo. The successful embryo transfer and pregnancy are a proof of
concept and allow to now safely move to the transfer of northern white rhino
embryos – a cornerstone in the mission to save the northern white rhino from
extinction.

Read more … World’s first successful embryo transfer in rhinos paves the way for
saving the northern white rhinos from extinction

23.01.2024 08:00

Hedgehog with cut injuries (photo: Editha Schneider)


NEW RESEARCH INTO HEDGEHOGS INJURED BY ROBOTIC LAWN MOWERS DISCOVERS A
SIGNIFICANT BUT SOLVABLE ANIMAL WELFARE AND CONSERVATION PROBLEM

Scientists from the Leibniz Institute for Zoo and Wildlife Research
(Leibniz-IZW) analysed 370 documented cases of hedgehogs being injured (cut) by
electric gardening tools in Germany. Almost half of the hedgehogs found between
June 2022 and September 2023 did not survive the injuries. The data reveal a
serious animal welfare and conservation issue for these specially protected
animals, as most hedgehogs were only found hours or even days after the
accidents. In two further studies, an international team of scientists analysed
how hedgehogs behaviourally respond to an approaching robotic lawn mower. The
observed behavioural responses were used to develop a scientifically sound,
standardised safety test to protect hedgehogs for robotic devices. The three
scientific papers are published in the special issue “Applied Hedgehog
Conservation Research” of the scientific journal “Animals”.

Read more … New research into hedgehogs injured by robotic lawn mowers discovers
a significant but solvable animal welfare and conservation problem

18.01.2024 13:15

Koala (photo: Norbert Potensky)


HELPING KOALAS TO SURVIVE: WORLD'S LARGEST KOALA PEDIGREE GENOMIC DATABASE AIMS
TO PROTECT THE POPULATION OF THE ENDANGERED SPECIES

An international research consortium with the participation of the Leibniz
Institute for Zoo and Wildlife Research (Leibniz-IZW) is building the world's
largest koala pedigree genomic database. This will help to improve the
understanding and prevention of diseases, protect endangered koala populations,
and thus ensure that koalas prosper everywhere in the long run. Among key
challenges for these animals is the koala retrovirus (KoRV), which increases
their susceptibility to bacterial infections, leukaemia and other types of
cancer. All koalas in zoological gardens in North America and Europe as well as
almost all free-ranging koalas in Australia carry this virus.

 

Read more … Helping koalas to survive: world's largest koala pedigree genomic
database aims to protect the population of the endangered species

04.01.2024 10:00

Greater mouse-eared bat (photo: Karin Schneeberger)


CONFLICT IN FULL SWING: FOREST BATS AVOID LARGE AREAS AROUND FAST-MOVING WIND
TURBINES

Not only do many bats die at wind turbines, the turbines also displace some
species from their habitats over large areas. When the turbines are in operation
at relatively high wind speeds, the activity of bat species that hunt in
structurally dense habitats such as forests drops by almost 80 per cent within a
radius of 80 to 450 metres around the turbine. This is the result of a
scientific investigation led by scientists from the Leibniz Institute for Zoo
and Wildlife Research (Leibniz-IZW) and the Philipps-Universität Marburg, which
is published in the journal “Global Ecology and Conservation". The team suggests
that one of the causes of this avoidance behaviour is the noise emission of the
turbine rotors, which increases with increasing wind speed.

Read more … Conflict in full swing: Forest bats avoid large areas around
fast-moving wind turbines

05.12.2023 11:01

Common noctule (photo: Carolin Scholz)


MUCH EFFORT, LITTLE PREY: POOR FORAGING SUCCESS DRIVES BATS AWAY FROM CITIES

While some wildlife species thrive well in cities, it's harder for large,
insectivorous bat species to find enough food: To get their fill, city-dwelling
common noctules (Nyctalus noctula) have to hunt longer than their rural
counterparts and yet they catch fewer insects. While rural bats hunt together,
their urban counterparts regularly forage alone. These findings, published in
the scientific journal “Global Change Biology”, are the results of a new
scientific investigation led by PD Dr Christian Voigt and Dr Laura Stidsholt
from the Leibniz Institute for Zoo and Wildlife Research (Leibniz-IZW).

 

Read more … Much effort, little prey: poor foraging success drives bats away
from cities

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Leibniz-Institut für Zoo- und Wildtierforschung (IZW)
im Forschungsverbund Berlin e.V.
Alfred-Kowalke-Straße 17
10315 Berlin
Deutschland

Telefon: 0049 (0) 30 5168 0
Fax: 0049 (0) 30 5126 104
E-Mail: direktor@izw-berlin.de
Web: www.leibniz-izw.de




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