Brigitte Hilpert’s research while affiliated with Friedrich-Alexander-University Erlangen-Nürnberg and other places

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Publications (9)


The remarkable record of mustelids from Hunas (Bavaria, Germany)
  • Article
  • Full-text available

September 2024

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99 Reads

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1 Citation

Comptes Rendus Palevol

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Brigitte Hilpert

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Dieta Ambros

The mustelid assemblage from Hunas is represented by seven species: Gulo gulo gulo, Meles meles, Lutra lutra groissii, Martes martes, Mustela putorius, Mustela erminea and Mustela nivalis. Most species have been found in the G1-G3 complex, while their remains in other layers are rare. The guild is dominated by remains of Mustela nivalis, for which well-preserved and stratified material shows a large, robust weasel, with a notable predominance of males. The morphology of Mustela nivalis, together with the occurrence of Lutra lutra, allowed us to estimate the age of the horizon at MIS 7.

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Mustelids from Sackdilling Cave (Bavaria, Germany) and their biostratigraphic significance

June 2021

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123 Reads

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19 Citations

Geobios

Sackdilling Cave is a karst fissure filled with a fossiliferous breccia including abundant fossil remains, mostly snails and small mammals. The taxonomic status of mustelid remains from this cave was previously regarded as controversial and, consequently, different authors listed different species from the locality. A detailed revision of the material shows the presence of five mustelid species: Meles sp., Martes vetus, Mustela strandi, Mustela palerminea, and Mustela praenivalis. Among them, especially noteworthy is the presence of the type specimen of Martes vetus. The Sackdilling holotype resembles Martes foina and differs from that of Martes martes in a short and broad viscerocranium; wide and less extended forward incisor row; compressed, short and wide temporal region; large, strongly inflated and convex tympanic bullae; and narrow P3 with weak lingual bulge. Some dental characters are specific for Martes vetus and show some intermediate values between Martes foina than Martes martes. Among them are the P4 protocone length and the M1 trigon length. The revised material from Sackdilling Cave of Mustela palerminea and Mustela praenivalis was compared with that from other Early and early Middle Pleistocene sites of Europe and showed the presence of intermediate characters. Subsequently, based on the entire mustelid assemblage and other faunal elements (mainly rodents), the age of this fauna was estimated as ca. 0.9-0.7 Ma.


Fig. 1. Skull of Crocuta ultima ussurica (ZIN 34478, holotype) from Geographical Society Cave; dorsal (A) and ventral (B) views. 
Fig. 2. Incisor row, upper canine and P1 of Crocuta ultima ussurica (ZIN 34490-1); occlusal view. 
Fig. 3. Mandibles of Crocuta ultima ussurica ; occlusal views: A – ZIN 34484; B – ZIN 34486; C – ZIN 34485. 
Fig. 4. Mandible fragments of Crocuta ultima ussurica ; labial (A – E) and medial (F) views: A – ZIN 34487; B – ZIN 34490-7; C – ZIN 34490-10; D – ZIN 34490-9; E, F – ZIN 34488. 
Fig. 5. Left mandibule with deciduous teeth (fragment of d2 and d3) (A) and isolate deciduous teeth d4, left (B, D) and right (C, E), of Crocuta ultima ussurica ; labial (A, D, E) and medial (B, C) views: A – ZIN 34490-31; B, D – ZIN 34490-32; C, E – ZIN 34490-33. 

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Crocuta TZ 318 3 Baryshnikov

March 2015

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1,237 Reads

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Stefan Prost

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[...]

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Michael Knapp




Fig. 2. Temporal haplotype network displaying the relationships of cave bear haplotypes through time. Haplotypes are represented by ellipses. The number of sequences sharing the same haplotype is indicated by the numbers in the ellipses (only numbers greater than 1 are shown). Small white ellipses indicate the absence of a haplotype that is otherwise found in a different time period. Shared haplotypes between time-points are connected by two vertical lines. Within each time period, haplotypes are connected by a line if they are separated by one mutation; each additional mutation is indicated by a small black dot. Red: U. s. spelaeus; green: U. s. eremus; yellow: U. s. ladinicus; blue: U. ingressus; cyan: U. rossicus; rose: U. kudarensis (Yana); purple: U. kudarensis.
Fig. 3. Bayesian estimate of the cave bear phylogeny, drawn to a timescale. The horizontal time axis is in kiloyears before present. Numbers of samples are given in parentheses. The position of the root was estimated by molecular clock rooting.
Mitochondrial DNA diversity and evolution of the Pleistocene cave bear complex

August 2014

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966 Reads

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89 Citations

Quaternary International

a b s t r a c t Cave bears are among the most well known extinct Pleistocene mammals. Their biogeography and taxonomy, along with the factors that led to their extinction, have been subject to long-standing con-troversy. Here, we reconstruct the phylogeography as well as the temporal and spatial population dy-namics of cave bears across their range using mitochondrial DNA control region sequences from 77 published as well as 65 new cave bear samples, Our analyses reveal a dramatic loss of genetic diversity in cave bear populations after 30,000 years before present and provide evidence for a range decline from east to west towards the onset of the last glacial maximum. Our results also suggest that the three major haplogroups within cave bears, which may correspond to distinct species, were previously more wide-spread, with relict populations in remote and alpine areas still harbouring haplotypes that have dis-appeared from most of their previous range. Applying a phylogenetic dating approach, we estimated the age of the oldest of our samples, originating from the Yana River region in north-eastern Siberia, to be around 178,000 years, which confirms a previous estimate of a Middle Pleistocene age based on its stratigraphic position. Our results extend our knowledge about the evolutionary history of cave bears,


Neanderthals and Monkeys in the Würmian of Central Europe: The Middle Paleolithic Site of Hunas, Southern Germany

January 2011

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788 Reads

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12 Citations

The site of Hunas is a cave ruin, filled with bedded sediments up to the roof. About 20 m sediments from the top down were excavated and yielded Middle Paleolithic artifacts as well as numerous faunal remains, including Macaca. With a single human molar, the site is one of the rare Neanderthalian localities in Germany. New TIMS-U/Th dating of speleothems at the base of the profile indicate that the whole sequence was not deposited during the late Middle Pleistocene as previously thought, but during the last glacial. According to the new chronological results, Hunas is the only place which shows the coexistence of man and monkey in the Würmian of Central Europe. The Macaca remains are the most recent evidence of magots in Central Europe so far. Keywords Homo neanderthalensis - Macaca -Late Pleistocene-TIMS/U-Th-Enviromagnetism-Bavaria-Cave


Withering Away--25,000 Years of Genetic Decline Preceded Cave Bear Extinction

March 2010

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453 Reads

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166 Citations

Molecular Biology and Evolution

The causes of the late Pleistocene megafaunal extinctions are still enigmatic. Although the fossil record can provide approximations for when a species went extinct, the timing of its disappearance alone cannot resolve the causes and mode of the decline preceding its extinction. However, ancient DNA analyses can reveal population size changes over time and narrow down potential causes of extinction. Here, we present an ancient DNA study comparing late Pleistocene population dynamics of two closely related species, cave and brown bears. We found that the decline of cave bears started approximately 25,000 years before their extinction, whereas brown bear population size remained constant. We conclude that neither the effects of climate change nor human hunting alone can be responsible for the decline of the cave bear and suggest that a complex of factors including human competition for cave sites lead to the cave bear's extinction.

Citations (4)


... Hence, the evolution of the above-mentioned transversal extension of the lower postcanine dentition can only be safely assessed through statistical evaluation. However, this is not possible in the current situation where poorly preserved material of only certain species is considered the reference for the ancestral stage (King & Powell, 2007;Marciszak et al., 2021). Larger samples that allow for statistically secured biochronological reference stages are required. ...

Reference:

Importance of the mustelids from the Early Pleistocene site Schernfeld (Bavaria, Germany) on the Eurasian context
Mustelids from Sackdilling Cave (Bavaria, Germany) and their biostratigraphic significance
  • Citing Article
  • June 2021

Geobios

... The phylogenetic analyses performed on published data and data generated using the amplification-free protocol shows the same topology for the amplification-free and standard single-stranded libraries, and no apparent differences in branch lengths. We do note that in neither analysis the individual O34-16, identified as an ingressus cave bear based on morphology, clusters with the published ingressus genome, but rather with the spelaeus genome which can be considered a separate evolutionary lineage [39,40]. Further investigations of cave bear population structure is needed to resolve this apparent discrepancy. ...

Mitochondrial DNA diversity and evolution of the Pleistocene cave bear complex

Quaternary International

... However, most of the taxonomic attributions are based on the chronology of the specimens, with only subtle differences recognized between M. sylvanus subspecies (Szalay and Delson, 1979;Delson, 1980;Alba et al., 2019). Indeed, fossil remains of M. s. florentina are considered larger than those of M. s. prisca, but close to extant specimens of M. s. sylvanus (Rook et al., 2001); whereas specimens of M. s. pliocena are nearly identical to those of M. s. florentina, except for slightly wider cheek teeth in the latter (Delson, 1980). Given the lack of adequate diagnostic features, several attributions do not go beyond the species level (Montoya et al., 1999;Zapfe, 2001). ...

Neanderthals and Monkeys in the Würmian of Central Europe: The Middle Paleolithic Site of Hunas, Southern Germany

... Younger dates of 24,200-23,500 cal yr BP for skeletal remains from NE-Italy indicate somewhat longer survival in refugia with more favorable climatic conditions (Terlato et al., 2019). Cave bear extinction was preceded by a decline in population size that started approximately 25,000 years before its final disappearance (Stiller et al., 2010). The ultimate cause(s) of extinction are a matter of debate (Kurtén, 1976;Stuart, 2021). ...

Withering Away--25,000 Years of Genetic Decline Preceded Cave Bear Extinction

Molecular Biology and Evolution