Stand structure, floristic composition and species diversity along altitudinal gradients of a Bornean mountain range 30 years after selective logging

Laing, Renee Sherna; Ong, Kian Huat; Kueh, Roland Jui Heng; Mang, Nixon Girang; King, Patricia Jie Hung; Sait, Muaish

doi:10.1007/s11629-018-5219-4

Cited by 3 publications

(1 citation statement)

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“…Logging generates large gaps and increases the amount of light in the understory (Yamada et al 2013), which can affect the physiological performance of seedlings and, ultimately, their recruitment and establishment (Duah-Gyamfi et al 2014). Therefore, direct light to the understory can lead to changes in species composition and canopy structure of logged forests, which usually favor recruitment of early-successional species at the detriment of shade-tolerant ones (Laing et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Effects of Canopy Openness on Seedling Survival and Growth After Selective Logging in a Monodominant Lowland Swamp Forest in Costa Rica

Valverde-Barrantes¹,

Hogan²,

Rocha³

2022

JTFS

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The mechanism proposed to explain tree monodominance in tropical forests is that the dominant species forms a dense canopy and produces shade-tolerant seedlings, which together favor selfreplacement. Under this hypothesis, seedlings of monodominant species should have limited ability to respond to drastic increases in understory light, like those resulting from logging. Therefore, monodominant species should lose their seedling dominance after logging-induced canopy opening. To test this hypothesis, the current study measured seedling survival and growth of the monodominant species, Prioria copaifera, and its main competitor, Pentaclethra macroloba, in two forest stands that differ in logging history and in an unlogged stand in southeastern Costa Rica. Although, growth rates and survival of previously established seedlings were similar for both species across the three stands, seedling survival and growth decreased as light increased, with the effect being more pronounced for Prioria than for Pentaclethra. The study also investigated the ability of Prioria to respond to changing light environments by transplanting seedlings into logging-induced canopy gaps. Contrary to prediction, Prioria seedlings survived and grew better in gap centers than in gap edges or under a closed canopy. This result contrasts with established seedlings that cannot acclimate to changes in light conditions. Therefore, we conclude that continued Prioria dominance in selectively logged forests depends more on seedling production after canopy disturbance than on the established seedling present before disturbances.

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Section: Introductionmentioning

confidence: 99%