Seasonality of above-ground net primary productivity along an Andean altitudinal transect in Peru

C. A.J. Girardin, Y. Malhi, Kenneth Feeley, J. M. Rapp, M. R. Silman, P. Meir, W. Huaraca Huasco, N. Salinas, M. Mamani, J. E. Silva-Espejo, K. García Cabrera, W. Farfan Rios, D. B. Metcalfe, C. E. Doughty, L. E.O.C. Aragão

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Solar irradiance and precipitation are the most likely drivers of the seasonal variation of net primary productivity (NPP) in tropical forests. Since their roles remain poorly understood, we use litter traps, dendrometer bands and census data collected from one hectare permanent plots to quantify the seasonality of above-ground NPP components and weather parameters in 13 sites distributed along a 2800-m altitudinal gradient ranging from lowland Amazonia to the high Andes. We combine canopy leaf area index and litterfall data to describe the seasonality of canopy production. We hypothesize that solar irradiance is the primary driver of canopy phenology in wetter sites, whereas precipitation drives phenology in drier systems. The seasonal rhythm of canopy NPP components is in synchrony with solar irradiance at all altitudes. Leaf litterfall peaks in the late dry season, both in lowland (averaging 0.54 ± 0.08 Mg C ha y-1, n = 5) and montane forests (averaging 0.29 ± 0.04 Mg C ha y-1, n = 8). Peaks in above-ground coarse woody NPP appears to be triggered by the onset of rainfall in seasonal lowland rain forests (averaging 0.26 ± 0.04 Mg C ha y-1, n = 5, in November), but not in montane cloud forests.

Original languageEnglish (US)
Pages (from-to)503-519
Number of pages17
JournalJournal of Tropical Ecology
Volume30
Issue number6
DOIs
StatePublished - Nov 20 2014
Externally publishedYes

Fingerprint

Peru
seasonality
primary productivity
transect
canopy
irradiance
productivity
solar radiation
litterfall
montane forest
montane forests
phenology
lowlands
dendrometers
census data
cloud forest
tropical montane cloud forests
synchrony
lowland forests
Amazonia

Keywords

  • carbon dynamics
  • ecophysiology
  • litterfall
  • net primary productivity
  • seasonality
  • soil water content
  • solar irradiance
  • temperature
  • tropical montane cloud forest

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics

Cite this

Girardin, C. A. J., Malhi, Y., Feeley, K., Rapp, J. M., Silman, M. R., Meir, P., ... Aragão, L. E. O. C. (2014). Seasonality of above-ground net primary productivity along an Andean altitudinal transect in Peru. Journal of Tropical Ecology, 30(6), 503-519. https://doi.org/10.1017/S0266467414000443

Seasonality of above-ground net primary productivity along an Andean altitudinal transect in Peru. / Girardin, C. A.J.; Malhi, Y.; Feeley, Kenneth; Rapp, J. M.; Silman, M. R.; Meir, P.; Huaraca Huasco, W.; Salinas, N.; Mamani, M.; Silva-Espejo, J. E.; García Cabrera, K.; Farfan Rios, W.; Metcalfe, D. B.; Doughty, C. E.; Aragão, L. E.O.C.

In: Journal of Tropical Ecology, Vol. 30, No. 6, 20.11.2014, p. 503-519.

Research output: Contribution to journalArticle

Girardin, CAJ, Malhi, Y, Feeley, K, Rapp, JM, Silman, MR, Meir, P, Huaraca Huasco, W, Salinas, N, Mamani, M, Silva-Espejo, JE, García Cabrera, K, Farfan Rios, W, Metcalfe, DB, Doughty, CE & Aragão, LEOC 2014, 'Seasonality of above-ground net primary productivity along an Andean altitudinal transect in Peru', Journal of Tropical Ecology, vol. 30, no. 6, pp. 503-519. https://doi.org/10.1017/S0266467414000443
Girardin, C. A.J. ; Malhi, Y. ; Feeley, Kenneth ; Rapp, J. M. ; Silman, M. R. ; Meir, P. ; Huaraca Huasco, W. ; Salinas, N. ; Mamani, M. ; Silva-Espejo, J. E. ; García Cabrera, K. ; Farfan Rios, W. ; Metcalfe, D. B. ; Doughty, C. E. ; Aragão, L. E.O.C. / Seasonality of above-ground net primary productivity along an Andean altitudinal transect in Peru. In: Journal of Tropical Ecology. 2014 ; Vol. 30, No. 6. pp. 503-519.
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