Carbohydrate Allocation to Storage as a Basis of Interspecific Variation in Sapling Survivorship and Growth

Root architecture and allocation patterns of eight native tropical species with different successional status used in open-grown mixed plantations in Panama

“…These results agree with those published by other authors (Reich et al 1998;Huante et al 1992;Paz 2003), although this study was carried out on a broader plant size gradient and on roots larger than 2 mm. The thicker root system of non-pioneer species supports the hypothesis that allocation to storage or defence is favoured in these species at the expense of soil exploration (Kobe 1997;Canham et al 1999). Investment in soil exploration would in contrast be needed by pioneer species to compensate higher aboveground development (i.e.…”

“…Recently, a study by Paz (2003) assessed some root architectural traits for 55 species pertaining to different functional types and found that, in general, latesuccessional species developed thicker roots (lower specific root length (SRL) values) than early-successional ones. Carbon allocation to storage or physical defense in thicker roots has been invoked as a strategy of late-successional species to survive under shade (Kobe 1997).…”

Using longitudinal survival probabilities to test field vigour estimates in sugar maple (Acer saccharum Marsh.)

“…Radial growth of tree stems is assumed to be a low priority in carbon allocation; it varies with growth conditions (e.g., soil, climate, and competition) and has been used as a sensitive surrogate measure of the carbon balance of trees (Kobe et al, 1995;Kobe, 1997). It is also a potentially useful indicator of stress and tree vigour (Waring and Pitman, 1985;Pedersen, 1998).…”

Révision du statut successionnel de l’érable à sucre (Acer saccharum)

“…These adaptations include conservative growth (i.e., smaller size and lower carbon accumulation), high allocation to coarse roots but low allocation to branches, flat crown morphology and low concentration of leaf nitrogen [16,29,47]. Nevertheless, under HL, AS showed greater height growth than BA, a species typically ranked as intermediate in shade-tolerance, while having a similar total biomass accumulation.…”