Repositorio
Institucional

Murua, Roberto

Tagle, Leonardo

Briones, Mireya

Montalba, Rene

Lambin, Xavier

Determination of minimal age of five species of Chusquea bamboos through rhizome analysis as a tool to predict the flowering in southern Chile

SOC BIOLGIA CHILE

REVISTA CHILENA DE HISTORIA NATURAL

en

Synchronous flowering and subsequent drying up of bamboos of the genus Chusquea are important processes in the dynamics and structure of many forest ecosystems. In southern South America, bamboo flowering and subsequent mast seeding trigger rodent outbreaks associated with zoonotic diseases. Predicting future flowering events requires knowledge of the age of bamboo stands together with species-specific periodicity in flowering. We explored whether it is possible to predict the minimum age in bamboo plants based on the features of their rhizomes. We studied bamboo stands of age known by the local people in 15 sites in the coastal and Andes Mountains as well as in and the Central Valley of southern Chile (37 degrees 48'- 43 degrees 58' S, from 12 to 1047 m.a.s.l.). For 164 individual plants, of five South American Chusquea bamboo species (C. valdiviensis, C. uliginosa, C. culeou, C. montana, and C. macrostachya), we collected and characterized the number and shape of divisions of whole rhizomes. For all species sampled there was a tight linear relationship between plant age and the number of rhizome divisions or rhizomes, accounting for 11-99 % of variation. In order to overcome constraints caused by the limited number of age cohorts available for individual species and to allow for prediction over a wider range of age, we also fitted a common linear model to species with similar age-rhizome relationships. We provide calibration relationships that can be used for retrospectively estimating the date of last flowering over large areas where bamboos form part of the understory and for predicting the future flowering events.

Artículo original

This work was funded by a The Wellcome Trust/ Grant 070461 to Xavier Lambin and Roberto Murua. We thank the many park rangers and local farmers who kindly informed us of the date of bamboo flowering in their area and of the age of the specific plants we sampled. We are also grateful to Pedro Munoz, San Martin park keeper for his assistance in field work and Lautaro Bahamondes for the illustration. Revista Chilena de Historia Natural has a publishing policy by which full articles are available for free in line up with the Wellcome Trust Grant procedures.

Este trabajo fue financiado por la subvención 070461 de The Wellcome Trust, otorgada a Xavier Lambin y Roberto Murua. Agradecemos a los guardaparques y agricultores locales que amablemente nos informaron sobre la fecha de floración del bambú en su área y la edad de las plantas que muestreamos. También agradecemos a Pedro Muñoz, guardaparques de San Martín, por su ayuda en el trabajo de campo, y a Lautaro Bahamondes por la ilustración. La Revista Chilena de Historia Natural tiene una política editorial que permite el acceso gratuito a los artículos completos, de acuerdo con los procedimientos de la subvención de The Wellcome Trust.

10.4067/S0716-078X2013000400004

pdf

age determination

Bamboo

Chusquea spp.

Hanta

seed masting

rhizome

HANTAVIRUS PULMONARY SYNDROME

NOTHOFAGUS FORESTS

POPULATION

BAMBUSOIDEAE

ABUNDANCE

PATTERNS

RODENTS

POACEAE

LONG

SEED

Determinación de la edad

Bambú

Chusquea spp.

Hanta

fructificación masiva de semillas

rizoma

SÍNDROME PULMONAR POR HANTAVIRUS

BOSQUES DE NOTHOFAGUS

POBLACIÓN

BAMBUSOIDEAE

ABUNDANCIA

PATRONES

ROEDORES

POACEAE

LARGO

SEMILLA

age determination

Bamboo

Chusquea spp.

Hanta

seed masting

rhizome

HANTAVIRUS PULMONARY SYNDROME

NOTHOFAGUS FORESTS

POPULATION

BAMBUSOIDEAE

ABUNDANCE

PATTERNS

RODENTS

POACEAE

LONG

SEED

Determinación de la edad

Bambú

Chusquea spp.

Hanta

fructificación masiva de semillas

rizoma

SÍNDROME PULMONAR POR HANTAVIRUS

BOSQUES DE NOTHOFAGUS

POBLACIÓN

BAMBUSOIDEAE

ABUNDANCIA

PATRONES

ROEDORES

POACEAE

LARGO

SEMILLA

Silvicultura

Botánica

Ecología

Determination of minimal age of five species of Chusquea bamboos through rhizome analysis as a tool to predict the flowering in southern Chile

REVISTA CHILENA DE HISTORIA NATURAL

en

Artículo original

versión publicada

Wellcome Trust 070461

Wellcome Trust 070461

SOC BIOLGIA CHILE

0716-078X

423

432

Conservación de la biodiversidad

Ecología

Biodiversity Conservation

Ecology

pdf

WOS:000332750700004