SwePub
Tyck till om SwePub Sök här!
Sök i SwePub databas

  Extended search

Träfflista för sökning "WFRF:(Ignatov Michael S.) "

Search: WFRF:(Ignatov Michael S.)

  • Result 1-10 of 10
Sort/group result
   
EnumerationReferenceCoverFind
1.
  •  
2.
  • Patiño, Jairo, et al. (author)
  • Unveiling the nature of a miniature world : a horizon scan of fundamental questions in bryology
  • 2022
  • In: Journal of Bryology. - : Informa UK Limited. - 0373-6687 .- 1743-2820. ; 44:1, s. 1-34
  • Journal article (peer-reviewed)abstract
    • Introduction. Half a century since the creation of the International Association of Bryologists, we carried out a review to identify outstanding challenges and future perspectives in bryology. Specifically, we have identified 50 fundamental questions that are critical in advancing the discipline.Methods. We have adapted a deep-rooted methodology of horizon scanning to identify key research foci. An initial pool of 258 questions was prepared by a multidisciplinary and international working group of 32 bryologists. A series of online surveys completed by a broader community of researchers in bryology, followed by quality-control steps implemented by the working group, were used to create a list of top-priority questions. This final list was restricted to 50 questions with a broad conceptual scope and answerable through realistic research approaches.Key results. The top list of 50 fundamental questions was organised into four general topics: Bryophyte Biodiversity and Biogeography; Bryophyte Ecology, Physiology and Reproductive Biology; Bryophyte Conservation and Management; and Bryophyte Evolution and Systematics. These topics included 9, 19, 14 and 8 questions, respectively.Conclusions. Although many of the research challenges identified are not newly conceived, our horizon-scanning exercise has established a significant foundation for future bryological research. We suggest analytical and conceptual strategies and novel developments for potential use in advancing the research agenda for bryology.
  •  
3.
  •  
4.
  •  
5.
  •  
6.
  •  
7.
  •  
8.
  •  
9.
  •  
10.
  • Newton, Angela E, et al. (author)
  • Dating the diversification of pleurocarpous mosses
  • 2006
  • In: Pleurocarpous Mosses. - : CRC Press (Taylor & Francis Books, Inc).
  • Book chapter (peer-reviewed)abstract
    • The pleurocarpous mosses are a highly diverse monophyletic lineage, comprising about 42% of the approximately13,000 extant species of mosses. Phylogenetic analysis of molecular data suggests that the pleurocarps diversified over a (geologically) short period of time. The absence of a good fossil record has hindered attempts to determine when this group evolved and the processes implicated. In particular, the idea that evolution of pleurocarpous mosses was associated with the appearance of angiosperm forests has been untestable, and needs further study.We explored the patterns of diversification of the pleurocarps and estimated possible dates for their origins. Phylogenetic analyses, using Bayesian inference procedures, were conducted using molecular gene sequence data from the plastid rps4 and rbcL genes sampled for 12 vascular plants, 2 hornworts, 34 hepatics and 103 mosses. Ages for well-supported nodes were estimated using penalized likelihood and calibrated on the fossil date of 450 myr for the origin of land plants.The appearance of pleurocarpy was dated at 194–161 mya, significantly earlier than the radiation of the majority of pleurocarp lineages about 165–131 mya. This radiation coincides with the diversification of the angiosperms in the Early Cretaceous, but predates appearance of complex angiosperm forests in the early Cenozoic. The hypothesis that pleurocarpous mosses evolved toexploit the angiosperm forests is modified — pleurocarpous mosses diversified in the same time frame as the early angiosperms and the recovered pattern suggests a putative correlation of thesediversification events.
  •  
Skapa referenser, mejla, bekava och länka
  • Result 1-10 of 10

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Close

Copy and save the link in order to return to this view