scholarly journals Non‐random loss of phylogenetically distinct rare species degrades phylogenetic diversity in semi‐natural grasslands

2019 ◽  
Vol 56 (6) ◽  
pp. 1419-1428 ◽  
Author(s):  
Kei Uchida ◽  
Masayoshi K. Hiraiwa ◽  
Marc W. Cadotte
Keyword(s):  
Rare Species ◽  
Phylogenetic Diversity ◽  
Natural Grasslands ◽  
Random Loss

The Contribution of Rare Species to Community Phylogenetic Diversity across a Global Network of Forest Plots

2012 ◽  
Vol 180 (1) ◽  
pp. E17-E30 ◽  
Author(s):  
Xiangcheng Mi ◽  
Nathan G. Swenson ◽  
Renato Valencia ◽  
W. John Kress ◽  
David L. Erickson ◽  
...  
Keyword(s):  
Rare Species ◽  
Phylogenetic Diversity ◽  
Global Network

scholarly journals Patterns of change in α and β taxonomic and phylogenetic diversity in the secondary succession of semi-natural grasslands in the Northern Apennines

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e8683
Author(s):  
Lorenzo Lazzaro ◽  
Lorenzo Lastrucci ◽  
Daniele Viciani ◽  
Renato Benesperi ◽  
Vincenzo Gonnelli ◽  
...  
Keyword(s):  
Species Richness ◽  
Phylogenetic Tree ◽  
Secondary Succession ◽  
Phylogenetic Diversity ◽  
Species Selection ◽  
Dry Grasslands ◽  
Hay Meadows ◽  
Β Diversity ◽  
Natural Grasslands ◽  
Succession Stage

We studied the secondary succession in semi-natural grasslands (dry grasslands and hay meadows) located in the eastern side of the Tuscan Apennines (Tuscany, Central Italy). We compared these habitats, investigating: (i) the changes in species richness, composition and phylogenetic diversity during the succession; (ii) whether the trends in species loss and species turnover in taxonomic diversity matched those in phylogenetic diversity. We performed a stratified random sampling, in a full factorial design between habitat type and succession stage (60 sampled plots, 10 × 2 types of habitat × 3 stages of succession). We constructed a phylogenetic tree of the plant communities and compared the differences in taxonomic/phylogenetic α- and β-diversity between these two habitats and during their succession. We identified indicator species for each succession stage and habitat. Looking at α-diversity, both habitats displayed a decrease in species richness, with a random process of species selection in the earlier succession stages from the species regional pool. Nevertheless, in the latter stage of dry grasslands we recorded a shift towards phylogenetic overdispersion at the higher-level groups in the phylogenetic tree. In both habitats, while the richness decreased with succession stage, most species were replaced during the succession. However, the hay meadows were characterized by a higher rate of new species’ ingression whereas the dry grasslands became dominated with Juniperus communis. Accordingly, the two habitats showed similar features in phylogenetic β-diversity. The main component was true phylogenetic turnover, due to replacement of unique lineages along the succession. Nevertheless, in dry grasslands this trend is slightly higher than expected considering the major importance of difference in species richness of dry grasslands sites and this is due to the presence of a phylogenetically very distant species (J. communis).

When rare species become endangered: cryptic speciation in myrmecophilous hoverflies

2002 ◽  
Vol 76 (2) ◽  
pp. 315-315
Author(s):  
KARSTEN SCHONROGGE ◽  
BOYD BARR ◽  
JUDITH C. WARDLAW ◽  
EMMA NAPPER ◽  
MICHAEL G. GARDNER ◽  
...  
Keyword(s):  
Rare Species ◽  
Cryptic Speciation
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