論文

査読有り
2020年9月

Life in the canopy: community trait assessments reveal substantial functional diversity among fern epiphytes

NEW PHYTOLOGIST
  • Joel H. Nitta
  • ,
  • James E. Watkins
  • ,
  • Charles C. Davis

227
6
開始ページ
1885
終了ページ
1899
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1111/nph.16607
出版者・発行元
WILEY

The expansion of angiosperm-dominated forests in the Cretaceous and early Cenozoic had a profound effect on terrestrial biota by creating novel ecological niches. The majority of modern fern lineages are hypothesized to have arisen in response to this expansion, particularly fern epiphytes that radiated into the canopy. Recent evidence, however, suggests that epiphytism does not correlate with increased diversification rates in ferns, calling into question the role of the canopy habitat in fern evolution.To understand the role of the canopy in structuring fern community diversity, we investigated functional traits of fern sporophytes and gametophytes across a broad phylogenetic sampling on the island of Moorea, French Polynesia, including > 120 species and representatives of multiple epiphytic radiations.While epiphytes showed convergence in small size and a higher frequency of noncordate gametophytes, they showed greater functional diversity at the community level relative to terrestrial ferns.These results suggest previously overlooked functional diversity among fern epiphytes, and raise the hypothesis that while the angiosperm canopy acted as a complex filter that restricted plant size, it also facilitated diversification into finely partitioned niches. Characterizing these niche axes and adaptations of epiphytic ferns occupying them should be a priority for future pteridological research.

Web of Science ® 被引用回数 : 13

リンク情報
DOI
https://doi.org/10.1111/nph.16607
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000534597000001&DestApp=WOS_CPL
ID情報
  • DOI : 10.1111/nph.16607
  • ISSN : 0028-646X
  • eISSN : 1469-8137
  • Web of Science ID : WOS:000534597000001

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