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An overview of the Cape geophytes
No full textProches, Serban, Cowling, Richard M., Goldblatt, Peter, Manning, John C., Snijman, Deirdré A. (2006): An overview of the Cape geophytes. Biological Journal of the Linnean Society 87: 27-43, DOI: 10.1111/j.1095-8312.2006.00557.
Figure 2 in An overview of the Cape geophytes
No full textFigure 2. The study area, largely equivalent to the fynbos and succulent karoo biomes (the distribution at quarter-degree scale, based on Low & Rebelo, 1998).Published as part of Proches, Serban, Cowling, Richard M., Goldblatt, Peter, Manning, John C. & Snijman, Deirdré A., 2006, An overview of the Cape geophytes, pp. 27-43 in Biological Journal of the Linnean Society 87 on page 29, DOI: 10.1111/j.1095-8312.2006.00557.x, http://zenodo.org/record/784636
Figure 3 in An overview of the Cape geophytes
No full textFigure 3. Geographic patterns of diversity in the Cape (at the quarter-degree scale), in two major geophyte families: A, Iridaceae; B, Orchidaceae (data from Proches et al., 2005).Published as part of Proches, Serban, Cowling, Richard M., Goldblatt, Peter, Manning, John C. & Snijman, Deirdré A., 2006, An overview of the Cape geophytes, pp. 27-43 in Biological Journal of the Linnean Society 87 on page 33, DOI: 10.1111/j.1095-8312.2006.00557.x, http://zenodo.org/record/784636
Figure 4 in An overview of the Cape geophytes
No full textFigure 4. Phylogenetic relationships in the Asparagales (based on Chase et al., 2000a; Fay et al., 2000; Soltis et al., 2000; APG II, 2003; Rudall, 2003; only recognizing clades with> 50% support), indicating geophytism (Stevens, 2001) and southern African taxa (see Leistner, 2000). Numbers of genera/species indicated for each family, based on Stevens (2001).Published as part of Proches, Serban, Cowling, Richard M., Goldblatt, Peter, Manning, John C. & Snijman, Deirdré A., 2006, An overview of the Cape geophytes, pp. 27-43 in Biological Journal of the Linnean Society 87 on page 34, DOI: 10.1111/j.1095-8312.2006.00557.x, http://zenodo.org/record/784636
Figure 1 in An overview of the Cape geophytes
No full textFigure 1. Geophyte diversity in the five mediterranean-climate regions of the world. Data from Cowling et al. (1996) and Parsons & Hopper (2003), with an additional estimate of 1335 species for the Mediterranean Basin (S. Proches, unpubl. data). Data for the Cape, as compiled in this paper.Published as part of Proches, Serban, Cowling, Richard M., Goldblatt, Peter, Manning, John C. & Snijman, Deirdré A., 2006, An overview of the Cape geophytes, pp. 27-43 in Biological Journal of the Linnean Society 87 on page 28, DOI: 10.1111/j.1095-8312.2006.00557.x, http://zenodo.org/record/784636
Figure 7 in An overview of the Cape geophytes
No full textFigure 7. Representation of hysteranthous, synanthous, and evergreen geophytes at five localities in the Cape. Pie size is proportional to the total numbers of species (data from Reid & Dyer, 1984; Snijman, 1984; Goldblatt, 1985, 1986, 1989; Perry, 1994; Goldblatt & Manning, 1998).Published as part of Proches, Serban, Cowling, Richard M., Goldblatt, Peter, Manning, John C. & Snijman, Deirdré A., 2006, An overview of the Cape geophytes, pp. 27-43 in Biological Journal of the Linnean Society 87 on page 39, DOI: 10.1111/j.1095-8312.2006.00557.x, http://zenodo.org/record/784636
Figure 6. Storage organ size for seven large Cape geophyte genera. Median, central 50 in An overview of the Cape geophytes
No full textFigure 6. Storage organ size for seven large Cape geophyte genera. Median, central 50% of the values, and ranges are given (data from Reid & Dyer, 1984; Snijman, 1984; Goldblatt, 1985, 1986, 1989; Perry, 1994; Goldblatt & Manning, 1998). The storage organs are annually replaced in the first four genera, but not in the last three, in which they have continuous growth.Published as part of Proches, Serban, Cowling, Richard M., Goldblatt, Peter, Manning, John C. & Snijman, Deirdré A., 2006, An overview of the Cape geophytes, pp. 27-43 in Biological Journal of the Linnean Society 87 on page 38, DOI: 10.1111/j.1095-8312.2006.00557.x, http://zenodo.org/record/784636
Figure 5 in An overview of the Cape geophytes
No full textFigure 5. Diversity of reproductive and vegetative characters in some speciose geophytic genera in the Cape. Based on the characters cited in naural dichotomous keys from Linder & Kurzweil (1999) and Manning et al. (2002). Since generic-level keys were used, the ratio between vegetative and reproductive characters in each genus is likely to represent a good approximation of the reality; however, intergeneric comparisons may not be strictly valid. Phylogenetic relationships based on Meerow et al. (1999), Chase et al. (2000a), Reeves et al. (2001), and Goldblatt et al. (2005).Published as part of Proches, Serban, Cowling, Richard M., Goldblatt, Peter, Manning, John C. & Snijman, Deirdré A., 2006, An overview of the Cape geophytes, pp. 27-43 in Biological Journal of the Linnean Society 87 on page 36, DOI: 10.1111/j.1095-8312.2006.00557.x, http://zenodo.org/record/784636
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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