Michael Pakenham Edgeworth
Edgew.; M. Pakenham Edgeworth; M. P. Edgeworth
May 24, 1812 – July 30, 1881
botanist, photographer
Irish botanist and photographer in India (1812-1881)
http://www.wikidata.org/entity/Q3102663
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Science Enabled by Specimen Data
Li, Y., J. Wen, Y. Ren, and J. Zhang. 2019. From seven to three: Integrative species delimitation supports major reduction in species number in Rhodiola section Trifida (Crassulaceae) on the Qinghai‐Tibetan Plateau. TAXON 68: 268–279. https://doi.org/10.1002/tax.12052
An essential component of biodiversity research and conservation is to accurately delimit species. Traditional morphology‐based taxonomy has faced great challenges in complex taxa. In the last few years, the focus of species delimitations has shifted from defining species using different species con…
Fletcher, T. L., L. Warden, J. S. Sinninghe Damsté, K. J. Brown, N. Rybczynski, J. C. Gosse, and A. P. Ballantyne. 2019. Evidence for fire in the Pliocene Arctic in response to amplified temperature. Climate of the Past 15: 1063–1081. https://doi.org/10.5194/cp-15-1063-2019
The mid-Pliocene is a valuable time interval for investigating equilibrium climate at current atmospheric CO2 concentrations because atmospheric CO2 concentrations are thought to have been comparable to the current day and yet the climate and distribution of ecosystems were quite different. One intr…
Folk, R. A., R. L. Stubbs, M. E. Mort, N. Cellinese, J. M. Allen, P. S. Soltis, D. E. Soltis, and R. P. Guralnick. 2019. Rates of niche and phenotype evolution lag behind diversification in a temperate radiation. Proceedings of the National Academy of Sciences 116: 10874–10882. https://doi.org/10.1073/pnas.1817999116
Environmental change can create opportunities for increased rates of lineage diversification, but continued species accumulation has been hypothesized to lead to slowdowns via competitive exclusion and niche partitioning. Such density-dependent models imply tight linkages between diversification and…
Karger, D. N., M. Kessler, O. Conrad, P. Weigelt, H. Kreft, C. König, and N. E. Zimmermann. 2019. Why tree lines are lower on islands—Climatic and biogeographic effects hold the answer J. Grytnes [ed.],. Global Ecology and Biogeography 28: 839–850. https://doi.org/10.1111/geb.12897
Aim: To determine the global position of tree line isotherms, compare it with observed local tree limits on islands and mainlands, and disentangle the potential drivers of a difference between tree line and local tree limit. Location: Global. Time period: 1979–2013. Major taxa studied: Trees. Method…
Chevalier, M. 2019. Enabling possibilities to quantify past climate from fossil assemblages at a global scale. Global and Planetary Change 175: 27–35. https://doi.org/10.1016/j.gloplacha.2019.01.016
The field of quantitative palaeoclimatology has made significant progress in the past decades. However, this progress has been spatially heterogeneous and strong discrepancies – both in terms of quality and density – exist between Europe and North America and the rest of the world. The need to balan…
Wan, J.-Z., C.-J. Wang, and F.-H. Yu. 2019. Large-scale environmental niche variation between clonal and non-clonal plant species: Roles of clonal growth organs and ecoregions. Science of The Total Environment 652: 1071–1076. https://doi.org/10.1016/j.scitotenv.2018.10.280
Clonal plant species can produce genetically identical and potentially independent offspring, and dominate a variety of habitats. The divergent evolutionary mechanisms between clonal and non-clonal plants are interesting areas of ecological research. A number of studies have shown that the environme…
Inman, R., J. Franklin, T. Esque, and K. Nussear. 2018. Spatial sampling bias in the Neotoma paleoecological archives affects species paleo-distribution models. Quaternary Science Reviews 198: 115–125. https://doi.org/10.1016/j.quascirev.2018.08.015
The ability to infer paleo-distributions with limited knowledge of absence makes species distribution modeling (SDM) a useful tool for exploring paleobiogeographic questions. Spatial sampling bias is a known issue when modeling extant species. Here we quantify the spatial sampling bias in a North Am…
Vetaas, O. R., J.-A. Grytnes, K. P. Bhatta, and B. A. Hawkins. 2018. An intercontinental comparison of niche conservatism along a temperature gradient. Journal of Biogeography 45: 1104–1113. https://doi.org/10.1111/jbi.13185
Aims: Phylogenetic niche conservatism (PNC) predicts that closely related species will have similar distributions along major environmental gradients, e.g. temperature. We test this theory by comparing the central tendencies of temperature for selected woody genera, and investigating whether these g…