Platform StadtWildTiere „goes nuts“ and national for a new Citizen Science Award
The platform stadwildtiere.at "powered by" biologists of the Research Institute of Wildlife Ecology of the Vetmeduni Vienna is launching a new initiative. While hobby researchers have only been able to report on wild animals in the Viennese urban area, citizens of all nine provincial capitals are now eligible to take part in the new Citizen Science Award project. The focus for the coming two months is the squirrel. In addition to the chance to win prizes for individual hobbyists, there is also a category for school classes, and the capital city with the most squirrel observations will be named the "Squirrel Capital of Austria". From 1 May, therefore, the platform´s slogan is "Hörnchen zählen - Hauptstadt wählen".In order to observe squirrels, you do not have to equip yourself with a night vision camera or wait for twilight. The rodents are exclusively active during the day. Your chances of spotting a squirrel are particularly good in small forests, in parks or in cemeteries. Old, clear tree stands that are connected to each other offer ideal habitat. This requirement can also be present in inner courtyards in urban areas. The presence of the wild neighbours is sometimes betryed by pine cones that are shed on the ground or nibbled nutshells. The nests of the small rodents can also be a clew. They are placed in tree tops with small branches, grasses and other nesting material.The start of the new national Citizen Science Award project is the 1st of May. Registration is possible directly through the website of the platform, where you can also find the conditions for successful participation and additional information about squirrels. The closing date is 30 June. Of course any other wild animal species in the urban area can still be reported on the platform.
More info (German)
(Web editor, 28 April 2017)
Taming the late Quaternary phylogeography of the Eurasiatic wild ass through ancient and modern DNA
The phylogeny (i.e. evolutionary history of organisms) of the assumed species and subspecies of the “Asiatic wild ass group” has been debated since the end of the 19th century. Today the distribution range of this once widespread group of Asiatic equids is greatly reduced and highly fragmented. To understand the evolutionary and historical processes that lead to the contemporary geographic genetic representation of the Asiatic wild ass group it is necessary to also include the past. Researchers, including Petra Kaczensky and Chris Walzer of the Research Institute of Wildlife Ecology of the Vetmeduni Vienna, studied the genetic diversity and inter-relationships of both extinct and extant populations over the last 100,000 years.
The research group examined samples from ancient, historic and extant species and subspecies in the Asiatic wild ass group throughout its range from Western Europe to Southwest and East Asia. Using a short section of a highly variable parts of the mitochondrial genome allowed the inclusion of information from extremely poorly preserved ancient samples. Resulting phylogenetic trees, placed all non-African wild asses into eleven clades (branches of the phylogenetic tree). Results challenge the current taxonomic subdivision into different species as they place the extinct European wild ass, E. hydruntinus, as well as the kiang, E. kiang, within the Asiatic wild ass, Equus hemionus, group of subspecies (Dziggetai, Khur, Onager, Kulan, and the Syrian Hemippus).
The phylogeographic organization of clades resulting from these efforts can be used not only to improve future taxonomic determination of a poorly characterized group of equids, but also to identify historic ranges, interbreeding events between various populations, and the impact of ancient climatic changes. In addition, appropriately placing relict populations into a broader phylogeographic and genetic context can better inform ongoing conservation strategies.
The article “Taming the late Quaternary phylogeography of the Eurasiatic wild ass through ancient and modern DNA [Link 6]” is published in the journal PLOS ONE.
(Web editor, 26 April 2017)
A surprising difference in the prevalence of amyloid disease in two wild hare populations
Amyloidosis is a group of diseases in which abnormal proteins, known as amyloid fibrils, build up in tissue due to protein misfolding. Amyloid protein can collect in many parts of human and animal bodies and affect the functioning of different organs. Systemic amyloidosis has not often been described in either captive or free-ranging European brown hares. A team of wildlife pathologists led by Annika Posautz from the Research Institute of Wildlife Ecology (FIWI) of the Vetmeduni Vienna examined a total of 594 hares from different populations in Lower Austria and northern Germany (on the island of Pellworm), as well as captive-bred hares raised at FIWI. They performed a pathohistology of all organs and an immunohistochemistry. They found that 22% of the Lower Austrian population, only 5.4% of the Pellworm population, and none of the captive bred hares showed varying degrees of amyloid deposition. Liver, spleen, kidneys and in some animals the small intestine were affected. None of the affected animals had shown any clinical signs of disease prior to death. The overall health status of the two free-ranging hare populations did not differ significantly enough to explain the difference in amyloid prevalence between them. Further investigations are needed to show whether different environmental conditions, such as climate, habitat, and proximity to livestock and wild birds may influence the development of the disease.
The article “Different population – different prevalence or, what is going on in the European brown hare (Lepus europaeus) [Link 8]” by Annika Posautz, Anna Kübber-Heiss (FIWI) & Per Westermark (Department of Immunology, Genetics and Pathology, Uppsala University) were published in the journal Amyloid.
(Web editor, 25 April 2017)
Raccoon dog represents a more acute risk than raccoon as vector for transmission of local parasites
The raccoon and the raccoon dog are two non-indigenous animal species that have become established in Europe in the past decades. Their increasing abundance has not only made them the most common carnivore species in some countries, but has also made them of interest to parasitologists as potential hosts for diseases. A team of researchers from Vetmeduni Vienna has now analysed samples from both species in Austria. The raccoon dog, which is more closely related to the fox, was shown to serve as an additional host for local parasites. Like the fox, it represents a risk as a host of zoonotic parasites, such as the fox tapeworm or trichina worms, that are also of relevance for humans. The raccoons sampled, as they mainly originated from fur farms, were still largely pathogen-free. The article "The raccoon dog (Nyctereutes procyonoides) and the raccoon (Procyon lotor)—their role and impact of maintaining and transmitting zoonotic diseases in Austria, Central Europe [Link 10]" by researchers at the Institute of Parasitology, the Research Institute of Wildlife Ecology, and at AGES was published in the journal Parasitology Research.
More info [Link 11]
(Web editor, 06 April 2017)
ALPBIONET2030 – Protection for the Alpine Space
Protected areas and connected natural axes - landscapes that wildlife can cross - form the basis of an Alpine “ecological network” for the protection of habitat and biodiversity. Such regional nature networks are now receiving additional support through the ALPBIONET 2030 project, which is funded by the European Union´s Alpine Space Programme. In various work packages, conditions for the implementation of ecological connectivity measures and national biodiversity strategies throughout the Alpine region will be improved. The Conservation Medicine Unit of the Research Institute of Wildlife Ecology, Vetmeduni Vienna, is responsible for the management of a work package for the analysis and improvement of Alpine wildlife management strategies, as well as the development of standardized forensic methods, which will be helpful for combating wildlife crime.
Internal project website [Link 14]
(Web editor, 14 March 2017)
New FWF project on polyunsaturated fatty acids and seasonal acclimatization
A new project financed by the Austrian Science Fund FWF was recently launched on the topic of "Polyunsaturated fatty acids and seasonal acclimatization [Link 16]". Profound changes of metabolic rate and body temperature seem to be ubiquitous among birds and mammals living in seasonal environments, as is associated membrane remodelling. However, specific effects of polyunsaturated fatty acids (PUFA) in phospholipids suggest trade-offs determining seasonal changes of the fatty acid composition of membranes that are largely independent of direct dietary intake. The current project investigates in detail effects of PUFA on seasonal acclimatization in red deer.
The project´s principal investigator is Univ.Prof. Dr. Walter Arnold, Head of the Research Institute of Wildlife Ecology.
(Web editor, 10 February 2017)
New FFG project on thermoregulation in wildboar is expected to bring important insights for wildlife management under climate change
A new research project financed by the Austrian Research Promotion Agency (FFG) is intended to improve understanding of the population dynamics of wild boars in times of climate change. The project "Wildlife Management in Climate Change: Studies on Thermoregulation in Wild Boars [Link 18]" examines how the body temperature of wild boars changes throughout the annual cycle. It also analyzes how extreme heat periods or cold spells affect body temperature. The effect of the energy budget on survival and reproduction will also be recorded. At the same time, the researchers are observing behavioral changes and activity patterns of wild boars under various climatic conditions. The long-term objective is to use the results obtained from this basic research as a basis for the development of new wildlife management strategies.
The project is led by Dr. Claudia Bieber from the Research Institute of Wildlife Ecology.
(Web editor, 9 Feburary 2017)
Citizen Science Awards 2016 for badger spotting
On 13 December 2016 the Citizen Science Awards 2016 were presented with a festive award ceremony at the great banquet hall of the University of Vienna. The projekt StadtWildTiere [Link 19] (urban wildlife) was represented with its "badger spotting" initiative (DachsSpurenSuche) [Link 20] and honoured the most dedicated badger spotters. Citizen science reports of wildlife sightings are combined with other scientific methods, such as camera traps and transect mapping to enable the project to collect data and analsye the presence and spread of mammals in the urban area of Vienna. A special research focus in 2016 and 2017 is on the badger.
We thank all citizen science wildlife spotters who have sent in their sighting reports. Many thanks also to the Austrian Agency for International Cooperation in Education and Research OEAD with the Centre for Citizen Science [Link 21], who made our participation at the Citizen Science Award possible.
More info (in German)
(Web editor, 19 November 2016)
News archive... [Link 23]