Eher nur für Wildbiologen und Veterinäre interessant, aber immerhin .. deutsche Wölfe, wild & frei.
Für 2019 gibt es inzwischen schon wieder mehrere neue Paper über Wölfe, aber für (selbst den interessierten deutschen) Laien zumeist nicht relevant.
Bindke et al. (2019): Helminth infections of wild European gray wolves (Canis lupus Linnaeus, 1758) in Lower Saxony, Germany, and comparison to captive wolves. DOI: 10.1007/s00436-018-6181-3.
This study aimed to investigate the endoparasite fauna of wild European gray wolves, which are currently recolonizing Germany. In total, 69 fecal samples of wild wolves were collected in Lower Saxony, Germany, from 2013 to 2015, analyzed by the sedimentation-flotation and McMaster techniques and compared to previous results on captive European Gray wolves living in zoological gardens in Germany. In addition to coproscopy, taeniid-positive samples from wild as well as captive wolves were differentiated by amplification and sequencing of small subunit ribosomal RNA (SSU rRNA) and NADH dehydrogenase 1 (nad1) gene fragments. Missing Taenia krabbei SSU rRNA reference sequences were generated from two T. krabbei specimens. Overall, 60.87% (42/69) of wild wolve samples were microscopically positive for at least one of seven egg types. Capillaria/Eucoleus spp. showed the highest frequency (31.88% [22/69]), followed by Taeniidae (21.74% [15/69]), Ancylostomatidae (20.29% [14/69]), Alaria alata (15.94% [11/69]), Toxocara canis (13.04% [9/69]), and Toxascaris leonina and Trichuris vulpis (each 5.80% [4/69]). Amplification of SSU rRNA was successful for 7/15 Taeniidae-positive samples from wild and 20/39 samples from captive wolves, revealing T. hydatigena in two and 14 samples, respectively. Taenia krabbei was detected in two further samples of wild and three samples of captive wolves, while for the remaining samples, no differentiation between T. serialis/T. krabbei was possible. Echinococcus spp. were not detected. Sequence comparisons revealed that the SSU rRNA gene fragment was not suitable to differentiate between T. serialis and T. krabbei. Therefore, the use of this fragment alone cannot be recommended for species identification in future studies.
Letzte Worte in Conclusions
Dufresnes et al. (2019): Last but not beast: the fall of the Alpine wolves told by historical DNA. DOI: 10.1007/s13364-019-00426-5.
In conclusion, the presented data offer useful informationon the general occurrence of wolf parasites. Further studies arenecessary to elucidate whether the presence of wolves influ-ences the epidemiology of the detected parasites in wildlife, livestock, and companion animals. Based on this study, wolves do not contribute significantly to an increased risk of zoonotic parasite species in Germany.
The sociopolitical acceptance necessary for the conservation of controversial species requires scientific knowledge that disentangles empirical facts from myth and misinformation. An epitome of such, the gray wolf (Canis lupus) had been eradicated from most of Western Europe by the early twentieth century. However, a few mysteriously re-appeared in the Alps throughout the twentieth century, leading to systematic hunts encouraged by popular folklore and massive waves of panic. These historical events are reminiscent of the hostile context now surrounding the recolonization of the wolf across former ranges. Through historical DNA sequencing of five rare museum specimens shot post-WWII, we tell the true story of these mystery beasts. The oldest ones (1947–1954) were just the very last survivors of an endemic, extremely resilient wolf population, thought to be extinct decades earlier, while recent ones (1978–1990) most likely originated from captivity. This parable reminds that today more than ever, scientific evidence is necessary to conduct an objective societal debate over the management and conservation of controversial species.
Wer ansonsten sich mit Parasiten weiter befassen will, kann sich an seinen Schieber wenden.
Schieber & Štrkolcová (2019): Prevalence of Endoparasites in Carnivores in a Zoo and a Wolves Park in Germany. DOI: 10.2478/fv-2019-0008.
Endoparasites have the potential to cause significant health problems in humans and other animals. Consequently, particularly the endoparasites of a zoonotic nature are of great interest to health authorities and scientists. This study investigated the prevalence of different intestinal parasite species of carnivores kept in captivity. Altogether 36 pooled samples of faeces obtained from individual animal enclosures from the Neunkircher Zoo and Wolfspark Werner Freund in Germany were examined. The samples were analysed by means of a flotation concentration method with the use of Faust and KozákMágrová solution. Out of a total of 36 samples, 19 were positive for endoparasites (52.78 %). Furthermore, 13 out of 19 positive samples were protozoans (68.42 %).