9 Result(s)
within
Joerns Fickel
English
Zoology
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Article
Crossing the border? Structure of the red deer (Cervus elaphus) population from the Bavarian-Bohemian forest ecosystem
Anthropogenic impact such as overhunting and habitat fragmentation has reduced the total red deer population (Cervus elaphus) across Europe. In Germany remaining subpopulations are even confined to designated are...
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Low genoty** error rates in non-invasively collected samples from roe deer of the Bavarian Forest National Park
Genetic wildlife monitoring is increasingly carried out on the basis of non-invasively collected samples, whereby the most commonly used DNA sources are skin appendages (hairs, feathers) and faeces. In order t...
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Siberian tiger’s recent population bottleneck in the Russian Far East revealed by microsatellite markers
Because size reduced, or bottlenecked, populations are more prone to adverse events, the detection of genetic bottleneck signatures in wildlife species is highly relevant for conservation. Here we applied 11 m...
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Article
Going west—invasion genetics of the alien raccoon dog Nyctereutes procynoides in Europe
The raccoon dog, a medium-sized carnivore, has long been recognised as a prominent example of an invasive alien species in Europe with a wide distribution, significant ecological impact and remarkable dynamics...
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Article
Cladogenesis of the European brown hare (Lepus europaeus Pallas, 1778)
A substantial portion of today’s biodiversity is attributed to the climatic oscillations of the Pleistocene Ice Ages. Gradual but dramatic climate changes were accompanied by expansion, contraction, and isolat...
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Distribution of haplotypes and microsatellite alleles among Asian elephants (Elephas maximus) in Thailand
Habitat fragmentation often promotes increased inbreeding depression due to interrupted gene flow between populations. In this study, we demonstrate that Asian elephants most likely also suffer from outbreedin...
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Structure of an otter (Lutra lutra) population in Germany - results of DNA and hormone analyses from faecal samples
Population size, one of the basic biological parameters is particularly difficult to estimate for nocturnal animals with cryptic life style and little individual distinctiveness like Eurasian otters (Lutra lutra)...
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Characterization of reproductive activity in captive male Eurasian lynx (Lynx lynx)
This study characterizes the reproductive activity of male European lynx kept in Central Russia. Four captive adult males were subjected to an electroejaculation prior to (November), during (March) and after (...
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A methodological approach for non-invasive sampling for population size estimates in wild boars (Sus scrofa)
Composite microsatellite genotypes were determined at five loci from 35 tissue-sampled wild boars and used as reference genotypes to estimate both allelic drop-out rate and false allele rate in comparison to g...
