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  1. Article: Which Latitudinal Gradient(s) in Intraspecific Genetic Diversity?

    Gratton, Paolo / Silvio Marta / Gaëlle Bocksberger / Marten Winter / Petr Keil / Emiliano Trucchi / Hjalmar Kühl

    Trends in ecology & evolution. 2017,

    2017  

    Abstract: A recent global analysis of GenBank DNA sequences from amphibians and mammals indicated consistent poleward decrease of intraspecific genetic diversity in both classes. We highlight that this result was biased by not accounting for distance decay of ... ...

    Abstract A recent global analysis of GenBank DNA sequences from amphibians and mammals indicated consistent poleward decrease of intraspecific genetic diversity in both classes. We highlight that this result was biased by not accounting for distance decay of similarity and reanalyse the datasets, revealing distinct latitudinal gradients in mammals and amphibians.
    Keywords DNA ; amphibians ; data collection ; genetic variation ; mammals ; nucleotide sequences
    Language English
    Size p. .
    Publishing place Elsevier Ltd
    Document type Article
    Note Pre-press version
    ZDB-ID 284965-3
    ISSN 1872-8383 ; 0169-5347
    ISSN (online) 1872-8383
    ISSN 0169-5347
    DOI 10.1016/j.tree.2017.07.007
    Database NAL-Catalogue (AGRICOLA)

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  2. Article ; Online: Hunting of mammals by central chimpanzees (Pan troglodytes troglodytes) in the Loango National Park, Gabon.

    Klein, Harmonie / Bocksberger, Gaëlle / Baas, Pauline / Bunel, Sarah / Théleste, Erwan / Pika, Simone / Deschner, Tobias

    Primates; journal of primatology

    2021  Volume 62, Issue 2, Page(s) 267–278

    Abstract: The predation and consumption of animals are common behaviours in chimpanzees across tropical Africa. To date, however, relatively little is known concerning the hunting behaviour of central chimpanzees (Pan troglodytes troglodytes). Here, we provide the ...

    Abstract The predation and consumption of animals are common behaviours in chimpanzees across tropical Africa. To date, however, relatively little is known concerning the hunting behaviour of central chimpanzees (Pan troglodytes troglodytes). Here, we provide the first direct observations of hunting behaviour by individuals of the newly habituated Rekambo community in the Loango National Park, Gabon. Over a period of 23 months (May 2017 to March 2019), we observed a total of 61 predation attempts on eight mammal species, including four monkey species. The two most frequently hunted species were two monkey species (Cercocebus torquatus, Cercopithecus nictitans), which are not hunted at other long-term field sites. The majority of predation events observed involved parties of an average of eight individuals, mainly adult males, with hunting success being higher with increasing numbers of participants. Hunting occurred all year round, but hunting rates increased in the dry season, the period of high fruit availability in the Loango National Park. These results are in line with the nutrient surplus hypothesis which explains seasonal variation in hunting behaviour in several populations of eastern chimpanzees (Pan troglodytes schweinfurthii: e.g., Mahale, Tanzania; Ngogo, Uganda). Finally, with a hunting frequency of 2.65 hunts per month, the Rekambo community had higher hunting rates than other sites (Bossou, Republic of Guinea; Kahuzi-Biega, Democratic Republic of Congo; Budongo, Uganda) where red colobus monkeys are also absent. We discuss these results and compare them to patterns at other long-term sites.
    MeSH term(s) Animals ; Appetitive Behavior ; Behavior, Animal ; Female ; Fruit ; Gabon ; Male ; Mammals ; Pan troglodytes/physiology ; Predatory Behavior ; Seasons ; Social Behavior
    Language English
    Publishing date 2021-01-08
    Publishing country Japan
    Document type Journal Article
    ZDB-ID 2100453-5
    ISSN 1610-7365 ; 0032-8332
    ISSN (online) 1610-7365
    ISSN 0032-8332
    DOI 10.1007/s10329-020-00885-4
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Phylogeny and species delimitations in European Dicranum (Dicranaceae, Bryophyta) inferred from nuclear and plastid DNA.

    Lang, Annick S / Bocksberger, Gaëlle / Stech, Michael

    Molecular phylogenetics and evolution

    2015  Volume 92, Page(s) 217–225

    Abstract: DNA sequences have been widely used for taxonomy, inferring phylogenetic relationships and identifying species boundaries. Several specific methods to define species delimitations based on molecular phylogenies have appeared recently, with the ... ...

    Abstract DNA sequences have been widely used for taxonomy, inferring phylogenetic relationships and identifying species boundaries. Several specific methods to define species delimitations based on molecular phylogenies have appeared recently, with the generalized mixed Yule coalescent (GMYC) method being most popular. However, only few studies on land plants have been published so far and GMYC analyses of bryophytes are missing. Dicranum is a large genus of mosses whose (morpho-)species are partly ill-defined and frequently confused. To infer molecular species delimitations, we reconstructed phylogenetic trees based on five chloroplast markers and nuclear ribosomal ITS sequences from 27 out of 30 species occurring in Europe. We applied the species delimitation methods GMYC and Poisson tree processes (PTP) in order to compare their discriminatory power with species boundaries inferred from the molecular phylogenetic reconstructions and with the morphological species concept. Phylogenetic circumscriptions were congruent with the morphological concept for 19 species, while eight species were molecularly not well delimited, mostly forming closely related species pairs. The automated species delimitation methods achieved similar results but tended to overestimate the number of potential species and exposed several incongruences between the morphological concept and inference from molecular phylogenetic reconstructions. It is concluded that GMYC and PTP methods potentially provide a useful and objective way of delimiting bryophyte species, but studies on further bryophyte data sets are necessary to infer whether incongruences might ensue from evolutionary processes and to test the suitability of these approaches.
    MeSH term(s) Base Sequence ; Bayes Theorem ; Bryophyta/classification ; Bryophyta/genetics ; Cell Nucleus/genetics ; DNA, Chloroplast/genetics ; Likelihood Functions ; Phylogeny ; Species Specificity
    Chemical Substances DNA, Chloroplast
    Language English
    Publishing date 2015-11
    Publishing country United States
    Document type Journal Article
    ZDB-ID 33610-5
    ISSN 1095-9513 ; 1055-7903
    ISSN (online) 1095-9513
    ISSN 1055-7903
    DOI 10.1016/j.ympev.2015.06.019
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Temporäre Hyposmie bei COVID-19-Patienten.

    Bocksberger, S / Wagner, W / Hummel, T / Guggemos, W / Seilmaier, M / Hoelscher, M / Wendtner, C-M

    HNO

    2020  Volume 68, Issue 6, Page(s) 440–443

    Abstract: Background: This is a report on the high incidence of olfactory dysfunction in COVID-19 patients in the first cohort of COVID-19 patients in Germany (Webasto cluster).: Methods: Loss of sense of smell and/or taste was reported by 26 of 63 COVID-19 ... ...

    Title translation Temporary hyposmia in COVID-19 patients.
    Abstract Background: This is a report on the high incidence of olfactory dysfunction in COVID-19 patients in the first cohort of COVID-19 patients in Germany (Webasto cluster).
    Methods: Loss of sense of smell and/or taste was reported by 26 of 63 COVID-19 patients (41%), whereas only 31% of the patients experiencing hyposmia had simultaneous symptoms of rhinitis. Smell tests were performed in 14 of these patients and taste tests in 10. The measurements were conducted in a patient care setting in an early COVID-19 cohort.
    Results: An olfactory disorder was present in 10/14 patients, before as well as after nasal decongestion. In 2 of these patients, hyposmia was the leading or only symptom of SARS-CoV‑2 infection. All tested patients reported recovery of smell and/or taste within 8 to 23 days.
    Conclusion: The data imply that a) COVID-19 can lead to hyposmia in a relevant number of patients, the incidence was approximately 30% in this cohort; b) in most cases, the olfactory disturbance was not associated with nasal obstruction, thus indicating a possible neurogenic origin; and c) the olfactory disorder largely resolved within 1-3 weeks after the onset of COVID-19 symptoms. There were no indications of an increased incidence of dysgeusia. These early data may help in the interpretation of COVID-19-associated hyposmia as well as in the counseling of patients, given the temporary nature of hyposmia observed in this study. Furthermore, according to the current experience, hyposmia without rhinitic obstruction can be the leading or even the only symptom of a SARS-CoV‑2 infection.
    MeSH term(s) COVID-19 ; Cohort Studies ; Coronavirus Infections/epidemiology ; Coronavirus Infections/therapy ; Germany/epidemiology ; Humans ; Incidence ; Olfaction Disorders/epidemiology ; Pandemics ; Pneumonia, Viral/epidemiology ; Pneumonia, Viral/therapy
    Keywords covid19
    Language German
    Publishing date 2020-05-14
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 200040-4
    ISSN 1433-0458 ; 0017-6192
    ISSN (online) 1433-0458
    ISSN 0017-6192
    DOI 10.1007/s00106-020-00891-4
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: A global risk assessment of primates under climate and land use/cover scenarios.

    Carvalho, Joana S / Graham, Bruce / Rebelo, Hugo / Bocksberger, Gaëlle / Meyer, Christoph F J / Wich, Serge / Kühl, Hjalmar S

    Global change biology

    2019  Volume 25, Issue 9, Page(s) 3163–3178

    Abstract: Primates are facing an impending extinction crisis, driven by extensive habitat loss, land use change and hunting. Climate change is an additional threat, which alone or in combination with other drivers, may severely impact those taxa unable to track ... ...

    Abstract Primates are facing an impending extinction crisis, driven by extensive habitat loss, land use change and hunting. Climate change is an additional threat, which alone or in combination with other drivers, may severely impact those taxa unable to track suitable environmental conditions. Here, we investigate the extent of climate and land use/cover (LUC) change-related risks for primates. We employed an analytical approach to objectively select a subset of climate scenarios, for which we then calculated changes in climatic and LUC conditions for 2050 across primate ranges (N = 426 species) under a best-case scenario and a worst-case scenario. Generalized linear models were used to examine whether these changes varied according to region, conservation status, range extent and dominant habitat. Finally, we reclassified primate ranges based on different magnitudes of maximum temperature change, and quantified the proportion of ranges overall and of primate hotspots in particular that are likely to be exposed to extreme temperature increases. We found that, under the worst-case scenario, 74% of Neotropical forest-dwelling primates are likely to be exposed to maximum temperature increases up to 7°C. In contrast, 38% of Malagasy savanna primates will experience less pronounced warming of up to 3.5°C. About one quarter of Asian and African primates will face up to 50% crop expansion within their range. Primary land (undisturbed habitat) is expected to disappear across species' ranges, whereas secondary land (disturbed habitat) will increase by up to 98%. With 86% of primate ranges likely to be exposed to maximum temperature increases >3°C, primate hotspots in the Neotropics are expected to be particularly vulnerable. Our study highlights the fundamental exposure risk of a large percentage of primate ranges to predicted climate and LUC changes. Importantly, our findings underscore the urgency with which climate change mitigation measures need to be implemented to avert primate extinctions on an unprecedented scale.
    MeSH term(s) Animals ; Climate Change ; Conservation of Natural Resources ; Ecosystem ; Primates ; Risk Assessment
    Language English
    Publishing date 2019-05-27
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1281439-8
    ISSN 1365-2486 ; 1354-1013
    ISSN (online) 1365-2486
    ISSN 1354-1013
    DOI 10.1111/gcb.14671
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Which Latitudinal Gradients for Genetic Diversity?

    Gratton, Paolo / Marta, Silvio / Bocksberger, Gaëlle / Winter, Marten / Keil, Petr / Trucchi, Emiliano / Kühl, Hjalmar

    Trends in ecology & evolution

    2017  Volume 32, Issue 10, Page(s) 724–726

    Abstract: A recent global analysis of GenBank DNA sequences from amphibians and mammals indicated consistent poleward decrease of intraspecific genetic diversity in both classes. We highlight that this result was biased by not accounting for distance decay of ... ...

    Abstract A recent global analysis of GenBank DNA sequences from amphibians and mammals indicated consistent poleward decrease of intraspecific genetic diversity in both classes. We highlight that this result was biased by not accounting for distance decay of similarity and reanalyse the datasets, revealing distinct latitudinal gradients in mammals and amphibians.
    Language English
    Publishing date 2017-10
    Publishing country England
    Document type Journal Article
    ZDB-ID 284965-3
    ISSN 1872-8383 ; 0169-5347
    ISSN (online) 1872-8383
    ISSN 0169-5347
    DOI 10.1016/j.tree.2017.07.007
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: COVID-19: Recovery from Chemosensory Dysfunction. A Multicentre study on Smell and Taste.

    Niklassen, Andreas Steenholt / Draf, Julia / Huart, Caroline / Hintschich, Constantin / Bocksberger, Simone / Trecca, Eleonora Maria Consiglia / Klimek, Ludger / Le Bon, Serge D / Altundag, Aytug / Hummel, Thomas

    The Laryngoscope

    2021  Volume 131, Issue 5, Page(s) 1095–1100

    Abstract: Objective/hypothesis: With the COVID-19 pandemic, chemosensory dysfunction are among the most prevalent symptoms. Most reports are subjective evaluations, which have been suggested to be unreliable. The objective is to test chemosensory dysfunction and ... ...

    Abstract Objective/hypothesis: With the COVID-19 pandemic, chemosensory dysfunction are among the most prevalent symptoms. Most reports are subjective evaluations, which have been suggested to be unreliable. The objective is to test chemosensory dysfunction and recovery based on extensive psychophysical tests in COVID-19 during the course of the disease.
    Study design: Prospective cohort study.
    Methods: A total of 111 patients from four centers participated in the study. All tested positive for SARS-COV-2 with RT-PCR. They were tested within 3 days of diagnosis and 28 to 169 days after infection. Testing included extensive olfactory testing with the Sniffin' Sticks test for threshold, discrimination and identification abilities, and with the Taste Sprays and Taste Strips for gustatory function for quasi-threshold and taste identification abilities.
    Results: There was a significant difference in olfactory function during and after infection. During infection 21% were anosmic, 49% hyposmic, and 30% normosmic. After infection only 1% were anosmic, 26% hyposmic, and 73% normosmic. For gustatory function, there was a difference for all taste qualities, but significantly in sour, bitter, and total score. Twenty-six percent had gustatory dysfunction during infection and 6.5% had gustatory dysfunction after infection. Combining all tests 22% had combined olfactory and gustatory dysfunction during infection. After infection no patients had combined dysfunction.
    Conclusions: Chemosensory dysfunction is very common in COVID-19, either as isolated smell or taste dysfunction or a combined dysfunction. Most people regain their chemosensory function within the first 28 days, but a quarter of the patients show persisting dysfunction, which should be referred to specialist smell and taste clinics for rehabilitation of chemosensory function.
    Level of evidence: 3 Laryngoscope, 131:1095-1100, 2021.
    MeSH term(s) Adult ; COVID-19/complications ; COVID-19/diagnosis ; COVID-19/epidemiology ; COVID-19/virology ; Female ; Humans ; Male ; Middle Aged ; Olfaction Disorders/physiopathology ; Olfaction Disorders/rehabilitation ; Olfaction Disorders/virology ; Olfactory Perception/physiology ; Prospective Studies ; Psychophysics/methods ; Recovery of Function/physiology ; SARS-CoV-2/genetics ; Taste Disorders/physiopathology ; Taste Disorders/rehabilitation ; Taste Disorders/virology ; Taste Perception/physiology
    Language English
    Publishing date 2021-01-15
    Publishing country United States
    Document type Journal Article ; Multicenter Study ; Research Support, Non-U.S. Gov't
    ZDB-ID 80180-x
    ISSN 1531-4995 ; 0023-852X
    ISSN (online) 1531-4995
    ISSN 0023-852X
    DOI 10.1002/lary.29383
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Temporäre Hyposmie bei COVID-19-Patienten

    Bocksberger, S. / Wagner, W. / Hummel, T. / Guggemos, W. / Seilmaier, M. / Hoelscher, M. / Wendtner, C.-M.

    HNO

    2020  Volume 68, Issue 6, Page(s) 440–443

    Keywords Otorhinolaryngology ; covid19
    Language German
    Publisher Springer Science and Business Media LLC
    Publishing country us
    Document type Article ; Online
    ZDB-ID 200040-4
    ISSN 1433-0458 ; 0017-6192
    ISSN (online) 1433-0458
    ISSN 0017-6192
    DOI 10.1007/s00106-020-00891-4
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article ; Online: Epidermal growth factor receptor transactivation is required for mitogen-activated protein kinase activation by muscarinic acetylcholine receptors in HaCaT keratinocytes.

    Ockenga, Wymke / Kühne, Sina / Bocksberger, Simone / Banning, Antje / Tikkanen, Ritva

    International journal of molecular sciences

    2014  Volume 15, Issue 11, Page(s) 21433–21454

    Abstract: Non-neuronal acetylcholine plays a substantial role in the human skin by influencing adhesion, migration, proliferation and differentiation of keratinocytes. These processes are regulated by the Mitogen-Activated Protein (MAP) kinase cascade. Here we ... ...

    Abstract Non-neuronal acetylcholine plays a substantial role in the human skin by influencing adhesion, migration, proliferation and differentiation of keratinocytes. These processes are regulated by the Mitogen-Activated Protein (MAP) kinase cascade. Here we show that in HaCaT keratinocytes all five muscarinic receptor subtypes are expressed, but M1 and M3 are the subtypes involved in mitogenic signaling. Stimulation with the cholinergic agonist carbachol leads to activation of the MAP kinase extracellular signal regulated kinase, together with the protein kinase Akt. The activation is fully dependent on the transactivation of the epidermal growth factor receptor (EGFR), which even appears to be the sole pathway for the muscarinic receptors to facilitate MAP kinase activation in HaCaT cells. The transactivation pathway involves a triple-membrane-passing process, based on activation of matrix metalloproteases, and extracellular ligand release; whereas phosphatidylinositol 3-kinase, Src family kinases or protein kinase C do not appear to be involved in MAP kinase activation. Furthermore, phosphorylation, ubiquitination and endocytosis of the EGF receptor after cholinergic transactivation are different from that induced by a direct stimulation with EGF, suggesting that ligands other than EGF itself mediate the cholinergic transactivation.
    MeSH term(s) Cell Line ; Endocytosis/genetics ; Enzyme Activation/genetics ; Epidermal Growth Factor/genetics ; Humans ; Keratinocytes/metabolism ; Mitogen-Activated Protein Kinases/genetics ; Phosphatidylinositol 3-Kinases/genetics ; Phosphorylation/genetics ; Protein Kinase C/genetics ; Receptor, Epidermal Growth Factor/genetics ; Receptors, Muscarinic/genetics ; Signal Transduction/genetics ; Transcriptional Activation/genetics ; Ubiquitination/genetics ; src-Family Kinases/genetics
    Chemical Substances Receptors, Muscarinic ; Epidermal Growth Factor (62229-50-9) ; Phosphatidylinositol 3-Kinases (EC 2.7.1.-) ; EGFR protein, human (EC 2.7.10.1) ; Receptor, Epidermal Growth Factor (EC 2.7.10.1) ; src-Family Kinases (EC 2.7.10.2) ; Protein Kinase C (EC 2.7.11.13) ; Mitogen-Activated Protein Kinases (EC 2.7.11.24)
    Language English
    Publishing date 2014-11-21
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms151121433
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Conference proceedings: Triphasic Pulse Stimulation

    Braun, K / Walker, K / Bocksberger, S / Suerth, W / Löwenheim, H / Tropitzsch, A

    Laryngo-Rhino-Otologie

    2018  Volume 97, Issue S 02

    Event/congress Abstract- und Posterband - 89. Jahresversammlung der Deutschen Gesellschaft für HNO-Heilkunde, Kopf- und Hals-Chirurgie e.V., Bonn - Forschung heute - Zukunft morgen, Musik- und Kongresshalle (MuK) Lübeck, 2018-05-09
    Language English
    Publishing date 2018-04-01
    Publisher Georg Thieme Verlag KG
    Publishing place Stuttgart ; New York
    Document type Article ; Conference proceedings
    ZDB-ID 96005-6
    ISSN 1438-8685 ; 0935-8943 ; 0340-1588
    ISSN (online) 1438-8685
    ISSN 0935-8943 ; 0340-1588
    DOI 10.1055/s-0038-1640270
    Database Thieme publisher's database

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