Impoverishment of recent floodplain forest mollusc fauna in the lower Ohře River (Czech Republic) as a result of prehistoric human impact
Identifieur interne : 002B34 ( Main/Exploration ); précédent : 002B33; suivant : 002B35Impoverishment of recent floodplain forest mollusc fauna in the lower Ohře River (Czech Republic) as a result of prehistoric human impact
Auteurs : Lucie Ju I Ková [République tchèque] ; Jitka Horá Ková [République tchèque] ; Vojen Ložek [République tchèque] ; Michal Horsák [République tchèque]Source :
- Boreas [ 0300-9483 ] ; 2013-10.
Descripteurs français
- Wicri :
- topic : Mollusque.
English descriptors
- KwdEn :
- Alexandrowicz, Alluvium, Approximate determination, Aquatic, Aquatic habitats, Assemblage, Biostratigraphic characteristics, Boreas, Broader area, Central bohemia, Central europe, Chernozem, Chernozem area, Coarser fragments, Cochlodina laminata, Czech, Czech republic, Early holocene, Ecological, Ecological characteristics, Ecological groups, Ecological groups sensu, Eurythermic species, Fauna, Forest habitats, Forest species, Fossil, Fossil mollusc successions, Fossil records, Fossil successions, Fruticicola fruticum, Historical development, Holocene, Human impact, Human impacts, Humic, Humic loam, Impoverishment, Index species, Jurickov, Layer numbers, Levee deposits, Lithology, Loam, Loess, Loess zone, Lower ohre, Lower ohre river, Lower section, Lower stretch, Lucie, Lucie jurickov, Marlstone, Marlstone rubble, Moist meadows, Mollusc, Mollusc assemblages, Mollusc shells, Mollusc succession, Mollusc successions, Myslivna, Myslivna site, Nature reserve myslivna, Occasional loess species, Ohre, Ohre river, Oodplain, Oodplain forest, Oodplain forest mollusc fauna, Oodplain forests, Oodplain habitats, Oodplains, Open country, Open habitats, Open patches, Poplze, Preece, Pseudotrichia rubiginosa, Quaternary, Radiocarbon, Recent assemblages, River valley, Rubble, Semiopen habitats, Sensu, Sensu stricto, Separate layers, Snail, Southern england, Sphyradium doliolum, Steppe, Stricto, Study area, Tufa, Upper stretch, Vallonia, Vertigo, Warm phases, Wetland, Woodland, Woodland assemblages, Woodland fauna, Woodland snail species, Woodland species, Woodland species sensu stricto.
- Teeft :
- Alexandrowicz, Alluvium, Approximate determination, Aquatic, Aquatic habitats, Assemblage, Biostratigraphic characteristics, Boreas, Broader area, Central bohemia, Central europe, Chernozem, Chernozem area, Coarser fragments, Cochlodina laminata, Czech, Czech republic, Early holocene, Ecological, Ecological characteristics, Ecological groups, Ecological groups sensu, Eurythermic species, Fauna, Forest habitats, Forest species, Fossil, Fossil mollusc successions, Fossil records, Fossil successions, Fruticicola fruticum, Historical development, Holocene, Human impact, Human impacts, Humic, Humic loam, Impoverishment, Index species, Jurickov, Layer numbers, Levee deposits, Lithology, Loam, Loess, Loess zone, Lower ohre, Lower ohre river, Lower section, Lower stretch, Lucie, Lucie jurickov, Marlstone, Marlstone rubble, Moist meadows, Mollusc, Mollusc assemblages, Mollusc shells, Mollusc succession, Mollusc successions, Myslivna, Myslivna site, Nature reserve myslivna, Occasional loess species, Ohre, Ohre river, Oodplain, Oodplain forest, Oodplain forest mollusc fauna, Oodplain forests, Oodplain habitats, Oodplains, Open country, Open habitats, Open patches, Poplze, Preece, Pseudotrichia rubiginosa, Quaternary, Radiocarbon, Recent assemblages, River valley, Rubble, Semiopen habitats, Sensu, Sensu stricto, Separate layers, Snail, Southern england, Sphyradium doliolum, Steppe, Stricto, Study area, Tufa, Upper stretch, Vallonia, Vertigo, Warm phases, Wetland, Woodland, Woodland assemblages, Woodland fauna, Woodland snail species, Woodland species, Woodland species sensu stricto.
Abstract
Analyses of fossil mollusc successions have rarely been used to study the development of floodplain forests during the Holocene. The Ohře River, located in a prehistorically settled chernozem area in the Czech Republic, is partly situated in Cretaceous marlstones, yielding sediments suitable for fossilization directly in floodplain deposits. We analysed five fossil mollusc successions situated in the lower stretch of the Ohře River and compared the results with recent mollusc assemblages studied along the entire 256 km of the river. Fossil samples were composed mostly of open‐country species throughout the Holocene or the whole preserved succession. Only some samples also contained woodland assemblages, but these were always greatly impoverished, with a very low frequency of strictly woodland species. Although the natural‐looking appearance of the present‐day floodplain forests of the lower river stretch has resulted in its being declared a nature reserve, modern floodplain forest mollusc assemblages there are also impoverished. This reduction in the distribution of strictly woodland species compared with modern assemblages in the upper stretch of the river seems to be the result of an ancient human settlement and continuous disturbances of the floodplain forest development since the Neolithic. Thus, fully developed floodplain forest assemblages occur recently only in the upper non‐impacted stretch of the river. Based on the studied fossil successions we can conclude that the lower Ohře River floodplain was probably a mosaic of open and disturbed forest habitats throughout the Holocene. This area is part of a central European landscape island, where forests probably never fully developed and open patches from the early Holocene continually developed into an agricultural landscape.
Url:
DOI: 10.1111/bor.12006
Affiliations:
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Kotlářská 2, CZ‐611 37, Brno</wicri:regionArea><placeName><settlement type="city">Brno</settlement><region>Moravie</region></placeName></affiliation></author></analytic><monogr></monogr><series><title level="j" type="main">Boreas</title><title level="j" type="alt">BOREAS</title><idno type="ISSN">0300-9483</idno><idno type="eISSN">1502-3885</idno><imprint><biblScope unit="vol">42</biblScope><biblScope unit="issue">4</biblScope><biblScope unit="page" from="932">932</biblScope><biblScope unit="page" to="946">946</biblScope><biblScope unit="page-count">15</biblScope><date type="published" when="2013-10">2013-10</date></imprint><idno type="ISSN">0300-9483</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0300-9483</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Alexandrowicz</term><term>Alluvium</term><term>Approximate determination</term><term>Aquatic</term><term>Aquatic habitats</term><term>Assemblage</term><term>Biostratigraphic characteristics</term><term>Boreas</term><term>Broader area</term><term>Central bohemia</term><term>Central europe</term><term>Chernozem</term><term>Chernozem area</term><term>Coarser fragments</term><term>Cochlodina laminata</term><term>Czech</term><term>Czech republic</term><term>Early holocene</term><term>Ecological</term><term>Ecological characteristics</term><term>Ecological groups</term><term>Ecological groups sensu</term><term>Eurythermic species</term><term>Fauna</term><term>Forest habitats</term><term>Forest species</term><term>Fossil</term><term>Fossil mollusc successions</term><term>Fossil records</term><term>Fossil successions</term><term>Fruticicola fruticum</term><term>Historical development</term><term>Holocene</term><term>Human impact</term><term>Human impacts</term><term>Humic</term><term>Humic loam</term><term>Impoverishment</term><term>Index species</term><term>Jurickov</term><term>Layer numbers</term><term>Levee deposits</term><term>Lithology</term><term>Loam</term><term>Loess</term><term>Loess zone</term><term>Lower ohre</term><term>Lower ohre river</term><term>Lower section</term><term>Lower stretch</term><term>Lucie</term><term>Lucie jurickov</term><term>Marlstone</term><term>Marlstone rubble</term><term>Moist meadows</term><term>Mollusc</term><term>Mollusc assemblages</term><term>Mollusc shells</term><term>Mollusc succession</term><term>Mollusc successions</term><term>Myslivna</term><term>Myslivna site</term><term>Nature reserve myslivna</term><term>Occasional loess species</term><term>Ohre</term><term>Ohre river</term><term>Oodplain</term><term>Oodplain forest</term><term>Oodplain forest mollusc fauna</term><term>Oodplain forests</term><term>Oodplain habitats</term><term>Oodplains</term><term>Open country</term><term>Open habitats</term><term>Open patches</term><term>Poplze</term><term>Preece</term><term>Pseudotrichia rubiginosa</term><term>Quaternary</term><term>Radiocarbon</term><term>Recent assemblages</term><term>River valley</term><term>Rubble</term><term>Semiopen habitats</term><term>Sensu</term><term>Sensu stricto</term><term>Separate layers</term><term>Snail</term><term>Southern england</term><term>Sphyradium doliolum</term><term>Steppe</term><term>Stricto</term><term>Study area</term><term>Tufa</term><term>Upper stretch</term><term>Vallonia</term><term>Vertigo</term><term>Warm phases</term><term>Wetland</term><term>Woodland</term><term>Woodland assemblages</term><term>Woodland fauna</term><term>Woodland snail species</term><term>Woodland species</term><term>Woodland species sensu stricto</term></keywords><keywords scheme="Teeft" xml:lang="en"><term>Alexandrowicz</term><term>Alluvium</term><term>Approximate determination</term><term>Aquatic</term><term>Aquatic habitats</term><term>Assemblage</term><term>Biostratigraphic characteristics</term><term>Boreas</term><term>Broader area</term><term>Central bohemia</term><term>Central europe</term><term>Chernozem</term><term>Chernozem area</term><term>Coarser fragments</term><term>Cochlodina laminata</term><term>Czech</term><term>Czech republic</term><term>Early holocene</term><term>Ecological</term><term>Ecological characteristics</term><term>Ecological groups</term><term>Ecological groups sensu</term><term>Eurythermic species</term><term>Fauna</term><term>Forest habitats</term><term>Forest species</term><term>Fossil</term><term>Fossil mollusc successions</term><term>Fossil records</term><term>Fossil successions</term><term>Fruticicola fruticum</term><term>Historical development</term><term>Holocene</term><term>Human impact</term><term>Human impacts</term><term>Humic</term><term>Humic loam</term><term>Impoverishment</term><term>Index species</term><term>Jurickov</term><term>Layer numbers</term><term>Levee deposits</term><term>Lithology</term><term>Loam</term><term>Loess</term><term>Loess zone</term><term>Lower ohre</term><term>Lower ohre river</term><term>Lower section</term><term>Lower stretch</term><term>Lucie</term><term>Lucie jurickov</term><term>Marlstone</term><term>Marlstone rubble</term><term>Moist meadows</term><term>Mollusc</term><term>Mollusc assemblages</term><term>Mollusc shells</term><term>Mollusc succession</term><term>Mollusc successions</term><term>Myslivna</term><term>Myslivna site</term><term>Nature reserve myslivna</term><term>Occasional loess species</term><term>Ohre</term><term>Ohre river</term><term>Oodplain</term><term>Oodplain forest</term><term>Oodplain forest mollusc fauna</term><term>Oodplain forests</term><term>Oodplain habitats</term><term>Oodplains</term><term>Open country</term><term>Open habitats</term><term>Open patches</term><term>Poplze</term><term>Preece</term><term>Pseudotrichia rubiginosa</term><term>Quaternary</term><term>Radiocarbon</term><term>Recent assemblages</term><term>River valley</term><term>Rubble</term><term>Semiopen habitats</term><term>Sensu</term><term>Sensu stricto</term><term>Separate layers</term><term>Snail</term><term>Southern england</term><term>Sphyradium doliolum</term><term>Steppe</term><term>Stricto</term><term>Study area</term><term>Tufa</term><term>Upper stretch</term><term>Vallonia</term><term>Vertigo</term><term>Warm phases</term><term>Wetland</term><term>Woodland</term><term>Woodland assemblages</term><term>Woodland fauna</term><term>Woodland snail species</term><term>Woodland species</term><term>Woodland species sensu stricto</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Mollusque</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract">Analyses of fossil mollusc successions have rarely been used to study the development of floodplain forests during the Holocene. The Ohře River, located in a prehistorically settled chernozem area in the Czech Republic, is partly situated in Cretaceous marlstones, yielding sediments suitable for fossilization directly in floodplain deposits. We analysed five fossil mollusc successions situated in the lower stretch of the Ohře River and compared the results with recent mollusc assemblages studied along the entire 256 km of the river. Fossil samples were composed mostly of open‐country species throughout the Holocene or the whole preserved succession. Only some samples also contained woodland assemblages, but these were always greatly impoverished, with a very low frequency of strictly woodland species. Although the natural‐looking appearance of the present‐day floodplain forests of the lower river stretch has resulted in its being declared a nature reserve, modern floodplain forest mollusc assemblages there are also impoverished. This reduction in the distribution of strictly woodland species compared with modern assemblages in the upper stretch of the river seems to be the result of an ancient human settlement and continuous disturbances of the floodplain forest development since the Neolithic. Thus, fully developed floodplain forest assemblages occur recently only in the upper non‐impacted stretch of the river. Based on the studied fossil successions we can conclude that the lower Ohře River floodplain was probably a mosaic of open and disturbed forest habitats throughout the Holocene. This area is part of a central European landscape island, where forests probably never fully developed and open patches from the early Holocene continually developed into an agricultural landscape.</div></front></TEI><affiliations><list><country><li>République tchèque</li></country><region><li>Bohême centrale</li><li>Moravie</li></region><settlement><li>Brno</li><li>Prague</li></settlement></list><tree><country name="République tchèque"><noRegion><name sortKey="Ju I Kova, Lucie" sort="Ju I Kova, Lucie" uniqKey="Ju I Kova L" first="Lucie" last="Ju I Ková">Lucie Ju I Ková</name></noRegion><name sortKey="Hora Kova, Jitka" sort="Hora Kova, Jitka" uniqKey="Hora Kova J" first="Jitka" last="Horá Ková">Jitka Horá Ková</name><name sortKey="Horsak, Michal" sort="Horsak, Michal" uniqKey="Horsak M" first="Michal" last="Horsák">Michal Horsák</name><name sortKey="Ju I Kova, Lucie" sort="Ju I Kova, Lucie" uniqKey="Ju I Kova L" first="Lucie" last="Ju I Ková">Lucie Ju I Ková</name><name sortKey="Ju I Kova, Lucie" sort="Ju I Kova, Lucie" uniqKey="Ju I Kova L" first="Lucie" last="Ju I Ková">Lucie Ju I Ková</name><name sortKey="Lozek, Vojen" sort="Lozek, Vojen" uniqKey="Lozek V" first="Vojen" last="Ložek">Vojen Ložek</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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