Methodology

Fine litter fall

Canopy litterfall is collected in 25 0.25 m2 litter traps installed one meter above the ground on each plot. Litterfall is collected bi-weekly, split into different components (leaves, fruits, flowers, seeds, woody tissue, epiphytes and bromeliads, unidentified fine debris), oven dried at 80 ºC, and weighed. Under long term-steady state conditions, the litterfall will be similar to the canopy production, but this is not the case on seasonal timescales. For this reason, we estimate NPPCanopy on an annual timeframe and litterfall on an inter-annual timeframe.

As we do not account for decomposition and herbivory of litter trapped in the canopy before reaching the litter traps our litterfall measurements are likely to be underestimated (Clark et al., 2001). Further, it is important to account for palm leaf litter (large leaves) in lowland plots to avoid further underestimations.

Where are we working?

Bullet_red - Site Bullet_blue - Plot Bullet_yellow - Field station

Photos and images

Medium_p1010428
Uploaded 26 Mar 2013 by Sam Moore. Copyright © 2017.

Hi All,

I've just returned from a month in Gabon and am very happy to report that all 6 plots (2 in each of the 3 sites) are now fully installed and March/April will be the first month where all measurements are taken simultaneously within all plots. All three sites now have a team of 2 people working on data collection and analysis. During Yadvinder’s week-long stay, we visited all sites and completed installation of all under- and above-canopy weather stations at the same time as successfully dodging charging elephants. I’ve uploaded some photos from this trip – enjoy!

Best,
Sam

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