John B. Dickie

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Improved phylogenies and the accumulation of broad comparative data sets have opened the way for phylogenetic analyses to trace trait evolution in major groups of organisms. We arrayed seed mass data for 12,987 species on the seed plant phylogeny and show the history of seed size from the emergence of the angiosperms through to the present day. The largest(More)
We used correlated divergence analysis to determine which factors have been most closely associated with changes in seed mass during seed plant evolution. We found that divergences in seed mass have been more consistently associated with divergences in growth form than with divergences in any other variable. This finding is consistent with the strong(More)
Previous investigators have identified strong positive relationships between genome size and seed mass within species, and across species from the same genus and family. Here, we make the first broad-scale quantification of this relationship, using data for 1222 species, from 139 families and 48 orders. We analyzed the relationship between genome size and(More)
Earth is home to a remarkable diversity of plant forms and life histories, yet comparatively few essential trait combinations have proved evolutionarily viable in today's terrestrial biosphere. By analysing worldwide variation in six major traits critical to growth, survival and reproduction within the largest sample of vascular plant species ever compiled,(More)
Given the widespread belief that the conservation of palms, especially the large-trunked species, is only accomplished throughin situ preservation or in plantations, this paper explores the feasibility of a third approach, i.e. cryogenic preservation of their seedsex situ. Seeds of the following palm species were subjected to air-drying to assess their(More)
Ex situ conservation efforts such as those of zoos, botanical gardens, and seed banks will form a vital complement to in situ conservation actions over the coming decades. It is therefore necessary to pay the same attention to the biological diversity represented in ex situ conservation facilities as is often paid to protected-area networks. Building the(More)
Angela T. Moles, Sarah E. Perkins, ShawnW. Laffan, Habacuc Flores-Moreno, Monica Awasthy, Marianne L. Tindall, Lawren Sack, Andy Pitman, Jens Kattge, Lonnie W. Aarssen, Madhur Anand, Michael Bahn, Benjamin Blonder, Jeannine Cavender-Bares, J. Hans C. Cornelissen, Will K. Cornwell, Sandra D ıaz, John B. Dickie, Gr egoire T. Freschet, Joshua G. Griffiths,(More)
Max Planck Institute for Biogeochemistry, Hans-Knöll-Strasse 10, 07745 Jena, Germany, German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Deutscher Platz 5, 04103 Leipzig, Germany, Department of Forest Resources, University of Minnesota, St Paul, MN 55108, USA, Department of Computer Science and Engineering, University of(More)
Sandel, B. (Corresponding author, brody.sandel@biology.au.dk), Guti errez, A.G. (bosqueciencia@googlemail.com), Reich, P.B. (preich@umn.edu), Schrodt, F. (fschrodt@bgc-jena.mpg.de), Dickie, J. (j.dickie@kew.org), Kattge, J. (jkattge@bgc-jena.mpg.de) Department of Bioscience, Aarhus University, Ny Munkegade 114, 8000 Aarhus C, Denmark; Instituto de(More)
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