Search

Your search keyword '"Hartkopf-Fröder C."' showing total 15 results
Start Over Author "Hartkopf-Fröder C."
15 results on '"Hartkopf-Fröder C."'

6. Late Permian (Lopingian) terrestrial ecosystems: A global comparison with new data from the low-latitude Bletterbach Biota

Author

Bernardi, M., Massimo Petti, Fabio, Kustatscher, E., Franz, M., Hartkopf-Fröder, C., Labandeira, Conrad C., Wappler, Torsten, van Konijnenburg-van Cittert, Johanna H.A., Peecook, Brandon R., Angielczyk, Kenneth D., Bernardi, M., Massimo Petti, Fabio, Kustatscher, E., Franz, M., Hartkopf-Fröder, C., Labandeira, Conrad C., Wappler, Torsten, van Konijnenburg-van Cittert, Johanna H.A., Peecook, Brandon R., and Angielczyk, Kenneth D.

Abstract

The late Palaeozoic is a pivotal period for the evolution of terrestrial ecosystems. Generalised warming and aridification trends resulted in profound floral and faunal turnover as well as increased levels of endemism. The patchiness of well-preserved, late Permian terrestrial ecosystems, however, complicates attempts to reconstruct a coherent, global scenario. In this paper, we provide a new reconstruction of the Bletterbach Biota (Southern Alps, NE Italy), which constitutes a unique, low-latitude record of Lopingian life on land. We also integrate floral, faunal (from skeletal and footprint studies), and plant–insect interaction data, as well as global climatic interpretations, to compare the composition of the 14 best-known late Permian ecosystems. The results of this ecosystem-scale analysis provide evidence for a strong correlation between the distribution of the principal clades of tetrapod herbivores (dicynodonts, pareiasaurs, captorhinids), phytoprovinces and climatic latitudinal zonation. We show that terrestrial ecosystems were structured and provincialised at high taxonomic levels by climate regions, and that latitudinal distribution is a key predictor of ecosystem compositional affinity. A latitudinal diversity gradient characterised by decreasing richness towards higher latitudes is apparent: mid- to low-latitude ecosystems had the greatest amount of high-level taxonomic diversity, whereas those from high latitudes were dominated by small numbers of higher taxa. The high diversities of tropical ecosystems stem from their inclusion of a mixture of late-occurring holdovers from the early Permian, early members of clades that come to prominence in the Triassic, and contemporary taxa that are also represented in higher latitude assemblages. A variety of evidence suggests that the Permian tropics acted as both a cradle (an area with high origination rates) and museum (an area with low extinction rates) for biodiversity.

Published
2017

7. Late Permian (Lopingian) terrestrial ecosystems: A global comparison with new data from the low-latitude Bletterbach Biota

Author

Marine Palynology, Marine palynology and palaeoceanography, Bernardi, M., Massimo Petti, Fabio, Kustatscher, E., Franz, M., Hartkopf-Fröder, C., Labandeira, Conrad C., Wappler, Torsten, van Konijnenburg-van Cittert, Johanna H.A., Peecook, Brandon R., Angielczyk, Kenneth D., Marine Palynology, Marine palynology and palaeoceanography, Bernardi, M., Massimo Petti, Fabio, Kustatscher, E., Franz, M., Hartkopf-Fröder, C., Labandeira, Conrad C., Wappler, Torsten, van Konijnenburg-van Cittert, Johanna H.A., Peecook, Brandon R., and Angielczyk, Kenneth D.

Published
2017

8. Relation of the neritic microfaunas and continental microfloras with the conodont and other pelagic faunas within the latest part of the Famennian with a few, new additional data and synthetic correlation chart

Author

STREEL M., BELKA Z., DREESEN R., DURKINA A.V., GROOS UFFENORDE H., HANCE L., HARTKOPF FRÖDER C., HAYDUKIEWICZ J., KORN D., PIECHA M., PERRI, MARIA CRISTINA, SPALLETTA, CLAUDIA, STREEL M., BELKA Z., DREESEN R., DURKINA AV., GROOS-UFFENORDE H., HANCE L., HARTKOPF-FRÖDER C., HAYDUKIEWICZ J., KORN D., PERRI M.C., PIECHA M., and SPALLETTA C.

Published
2005

9. Relation of the neritic microfaunas and continental microfloras with the conodont and other pelagic faunas of the latest part of the Famennian

Author

Streel M., Belka Z., Dreesen R., Durkina A. V., Groos Uffenorde H., Hance L., Hartkopf Fröder C., Haydukiewicz J., Korn D., Piecha M., PERRI, MARIA CRISTINA, SPALLETTA, CLAUDIA, Streel M., Belka Z., Dreesen R., Durkina A.V., Groos-Uffenorde H., Hance L., Hartkopf-Fröder C., Haydukiewicz J., Korn D., Perri M.C., Piecha M., and Spalletta C.

Published
2004

12. Comparison of quantification methods to measure fire-derived (black/elemental) carbon in soils and sediments using reference materials from soil, water, sediment and the atmosphere

Author

Hammes, K., Schmidt, M.W.I., Smernik, R.J., Currie, L.A., Ball, W.P., Nguyen, T.H., Louchouarn, P., Houel, S., Gustafsson, Örjan, Elmquist, Marie, Cornelissen, G., Skjemstad, J.O., Masiello, C.A., Song, J., Peng, P., Mitra, S., Dunn, J.C., Hatcher, P.G., Hockaday, W.C., Smith, D.M., Hartkopf-Fröder, C., Böhmer, A., Lüer, B., Huebert, B.J., Amelung, W., Brodowski, S., Huang, L., Zhang, W., Gschwend, P.M., Flores-Cervantes, D.X., Largeau, C., Rouzaud, J.N., Rumpel, C., Guggenberger, G., Kaiser, K., Rodionov, A., Gonzalez-Vila, F.J., Gonzalez-Perez, J.A., de la Rosa, J.M., Manning, D.A.C., López-Capél, E., Ding, L., Hammes, K., Schmidt, M.W.I., Smernik, R.J., Currie, L.A., Ball, W.P., Nguyen, T.H., Louchouarn, P., Houel, S., Gustafsson, Örjan, Elmquist, Marie, Cornelissen, G., Skjemstad, J.O., Masiello, C.A., Song, J., Peng, P., Mitra, S., Dunn, J.C., Hatcher, P.G., Hockaday, W.C., Smith, D.M., Hartkopf-Fröder, C., Böhmer, A., Lüer, B., Huebert, B.J., Amelung, W., Brodowski, S., Huang, L., Zhang, W., Gschwend, P.M., Flores-Cervantes, D.X., Largeau, C., Rouzaud, J.N., Rumpel, C., Guggenberger, G., Kaiser, K., Rodionov, A., Gonzalez-Vila, F.J., Gonzalez-Perez, J.A., de la Rosa, J.M., Manning, D.A.C., López-Capél, E., and Ding, L.

Published
2007
Full Text
View/download PDF

14. New fungal cephalothecoid-like fructifications from central European Neogene deposits.

Author

Worobiec G, Neumann FH, Worobiec E, Nitz V, and Hartkopf-Fröder C

Subjects
Germany, Microscopy, Poland, Sordariales cytology, Fossils microbiology, Sordariales classification, Sordariales isolation & purification
Abstract

Fragments of cephalothecoid fructifications (peridia) were encountered during palynological investigations of Neogene deposits in Mizerna-Nowa/Poland and Adendorf/Germany. Isolated plates of cephalothecoid ascoma in shape and cellular structure similar to the extant members of the family Cephalothecaceae are described as Cephalothecoidomyces neogenicus fossil gen. et sp. nov. while remnants of fungal sporocarps with cephalothecoid walls with indistinct lines of dehiscence, similar in structure to peridia with cephalothecoid morphology of extant representatives the family Chaetomiaceae (mainly genus Chaetomidium) are assigned to Adendorfia miocenica fossil gen. et sp. nov. We also propose a new interpretation of some previously described fossil fungal taxa that we consider to be remnants of cephalothecoid ascomata., (Copyright © 2017 British Mycological Society. Published by Elsevier Ltd. All rights reserved.)

Published
2017
Full Text
View/download PDF

15. Mid-Cretaceous charred fossil flowers reveal direct observation of arthropod feeding strategies.

Author

Hartkopf-Fröder C, Rust J, Wappler T, Friis EM, and Viehofen A

Subjects
Acari ultrastructure, Animals, Culicidae ultrastructure, Feeding Behavior, Flowers physiology, Flowers ultrastructure, Germany, Magnoliopsida ultrastructure, Microscopy, Electron, Scanning, Paleontology, Pollen physiology, Pollen ultrastructure, Acari physiology, Biological Evolution, Culicidae physiology, Fossils, Magnoliopsida physiology
Abstract

Although plant-arthropod relationships underpin the dramatic rise in diversity and ecological dominance of flowering plants and their associated arthropods, direct observations of such interactions in the fossil record are rare, as these ephemeral moments are difficult to preserve. Three-dimensionally preserved charred remains of Chloranthistemon flowers from the Late Albian to Early Cenomanian of Germany preserve scales of mosquitoes and an oribatid mite with mouthparts inserted into the pollen sac. Mosquitoes, which today are frequent nectar feeders, and the mite were feeding on pollen at the time wildfire consumed the flowers. These findings document directly arthropod feeding strategies and their role in decomposition.

Published
2012
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results