Fenología de Tayloria dubyi (Splachnaceae) en las turberas de la Reserva de Biosfera Cabo de Hornos

Description:

This article proposes a methodology for phenological studies of Tayloria dubyi (Splachnaceae) in the peatlands of the Cape Horn Biosphere Reserve.

Creator(s):
Creation Date: 2010
Partner(s):
UNT College of Arts and Sciences
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UNT Scholarly Works
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Total Uses: 246
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Creator (Author):
Jofre, Jocelyn

Universidad de Magallanes; Instituto de Ecología y Biodiversidad

Creator (Author):
Massardo, Francisca

Universidad de Magallanes; Instituto de Ecología y Biodiversidad

Creator (Author):
Rozzi, Ricardo, 1960-

University of North Texas; Universidad de Magallanes; Instituto de Ecología y Biodiversidad

Creator (Author):
Goffinet, Bernard

University of Connecticut

Creator (Author):
Marino, Paul

Memorial University of Newfoundland

Creator (Author):
Raguso, Robert A.

Cornell University

Creator (Author):
Navarro, Nelso P.

Universidad de Magallanes; Universidad de Sāo Paulo

Publisher Info:
Place of Publication: [Santiago, Chile]
Date(s):
  • Creation: 2010
Description:

This article proposes a methodology for phenological studies of Tayloria dubyi (Splachnaceae) in the peatlands of the Cape Horn Biosphere Reserve.

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Note:

Abstract: The sub-Antarctic Magellanic ecoregion harbors a high diversity of bryophytes, greater than the species richness of vascular plants. Despite this fact, phenological studies on bryophytes are lacking for this ecoregion and Chile. Based on the study of the sporophytic phase of Tayloria dubyi, an endemic moss from the sub-Antarctic Magellanic ecoregion, the authors propose a methodology for pheonological studies on austral bryophytes. The authors defined five phenophases, easily distinguishable with a hand-lens, which were monthly recorded during 2007 and 2008 in populations of T. dubyi at the Omora Ethnobotanical Park and Mejillones Bay on Navarino Island (55°S) in the Cape Horn Biosphere Reserve. The sporophytic (or reproductive) phase of T. dubyi presented a clear seasonality. After growing in November, in three months (December - February) of the austral reproductive season the sporophytes mature and release their spores; by March they are already senescent T. dubyi belongs to the Splachnaceae family for which entomochory (dispersal of spores by insects, specifically Diptera) has been detected in the Northern Hemisphere. The period of spores release in T. dubyi coincides with the months of highest activity of Diptera which are potential dispersers of spores; hence, entomochory could also take place in sub-Antarctic Magellanic ecoregion. In sum, the authors' work: (i) defines a methodology for phenological studies in austral bryophytes, (ii) it records a marked seasonality ion the sporophyte phase of T. dubyi, and (iii) it proposes to evaluate in future research the occurrence of entomochory in splachnaceae species growing in the sub-Antarctic peatlands and forest ecosystems in the Southern Hemisphere.

Physical Description:

12 p.

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Subject(s):
Keyword(s): bryophytes | Cape Horn Biosphere Reserve | phenology reproduction | Splachnaceae | sub-Antarctic Magellanic ecoregion
Source: Revista Chilena de Historia Natural, 2010, Santiago: Sociedad de Biología de Chile, pp. 195-206
Parallel Title: Phenology of Tayloria dubyi (Splachnaceae) in the peatlands of the Cape Horn Biosphere Reserve
Series Title: Sub-Antarctic Biocultural Conservation Program
Partner:
UNT College of Arts and Sciences
Collection:
UNT Scholarly Works
Identifier:
  • ARK: ark:/67531/metadc97952
Resource Type: Article
Format: Text
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Access: Public
Citation:
Publication Title: Revista Chilena de Historia Natural
Volume: 83
Page Start: 195
Page End: 206
Pages: 12
Peer Reviewed: Yes