Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1111/1365-2664.12826
Volltext Shareable Link
Titel (primär) Increasing species richness but decreasing phylogenetic richness and divergence over a 320-year period of urbanization
Autor Knapp, S.; Winter, M.; Klotz, S.
Quelle Journal of Applied Ecology
Erscheinungsjahr 2017
Department BZF
Band/Volume 54
Heft 4
Seite von 1152
Seite bis 1160
Sprache englisch
Keywords biological invasions; evolutionary history; extirpation; immigration; long-term ecological research; phyloecology; phylogenetic diversity; red-list species; species richness; urbanization
UFZ Querschnittsthemen RU1;
  1. Urbanization is increasing faster than ever, contributing to a global extinction crisis. Recently, scientists have debated whether species richness on local and regional scales is mostly declining, but long-term changes in phylogenetic richness and divergence were largely disregarded. Space-for-time approaches revealed that plant phylogenetic divergence is lower in urban than in non-urban areas. However, such approaches cannot fully disentangle the relative importance of the biotic processes that drive temporal changes in diversity.
  2. Using a unique European urban flora covering 320 years in seven time steps, combined with a comprehensive plant phylogeny, we examined (i) how species richness changed with urbanization over time; (ii) whether trends in phylogenetic richness and divergence parallel trends in species richness; and (iii) whether species extirpation or immigration is driving these changes.
  3. We found that over time urban species richness increased, but phylogenetic richness and divergence decreased. Extirpations of phylogenetically distinct native species and immigrations of phylogenetically common native and non-native species caused a non-random loss of phylogenetic diversity. Our analyses suggest that if future extirpations and immigrations continue to follow the patterns observed over history, this loss will continue.
  4. Synthesis and applications. Measures to protect phylogenetic diversity should combine the protection of threatened habitats and their species with the maintenance of habitats that mitigate heat and safeguard evolutionary history. Urban planners should consider a phylogenetically diverse set of species when designing green spaces.
dauerhafte UFZ-Verlinkung
Knapp, S., Winter, M., Klotz, S. (2017):
Increasing species richness but decreasing phylogenetic richness and divergence over a 320-year period of urbanization
J. Appl. Ecol. 54 (4), 1152 - 1160 10.1111/1365-2664.12826