Logging from Rivers May Control Human Invasions

Kursar, Thomas A.; Grauel, William

doi:10.1046/j.1523-1739.2002.00204.x

Cited by 2 publications

(3 citation statements)

References 3 publications

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“…below). Measures can, however, be taken to mitigate the susceptibility of logged forest to burning (Holdsworth & Uhl, 1997) and encroachment (Kursar & Grauel, 2002).…”

Section: Discussionmentioning

confidence: 99%

Burning and logging differentially affect endemic vs. widely distributed butterfly species in Borneo

Cleary

Mooers

2006

Diversity and Distributions

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We assess the differential impact of logging and ENSO (El Niño Southern Oscillation)induced disturbance on the relative butterfly abundance and species richness of range-restricted and widespread species within the island of Borneo. Relative abundance and species richness were assessed using rarefaction and species accumulation curves in unburned isolates surrounded by burned forest, the burned forest itself, and continuous forest unaffected by ENSO-induced disturbance in addition to logged and unlogged landscapes in unburned forest. The relative abundance of endemics was significantly higher in unlogged forest than logged forest and significantly higher in unburned forest than burned forest. Rarefied species richness of range categories was similar (Bornean endemics) or higher (other categories) in selectively logged than unlogged forest. In contrast, rarefied species richness of range-restricted species was highest in continuous forest, intermediate in unburned isolates, and lowest in burned forest. Only two individuals of a single Bornean endemic species were found in all the burned forest. Although species richness was higher in all range categories in continuous forest than in unburned isolates and in burned forest, the difference was most pronounced for range-restricted species. Logging and ENSO-induced fires thus have contrasting effects on range-restricted species. While both increase the relative abundance of widely distributed species at the expense of range-restricted species, only ENSO-induced disturbance lowers the rarefied number of restricted range species. Our research highlights the threat that severe ENSO events pose to geographically restricted classes of biodiversity.

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“…below). Measures can, however, be taken to mitigate the susceptibility of logged forest to burning (Holdsworth & Uhl, 1997) and encroachment (Kursar & Grauel, 2002).…”

Section: Discussionmentioning

confidence: 99%

Burning and logging differentially affect endemic vs. widely distributed butterfly species in Borneo

Cleary

Mooers

2006

Diversity and Distributions

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“…Prioria copaifera is one of the Neotropical caesalpinoids trees species known to form monodominant stands. It accounts for 60-90% of the basal area in the lowlands forest subjected to periodic flooding distributed from Nicaragua to Colombia and Jamaica (Gonzáles, Gómez, & Arteaga, 1991;Kursar, & Grauel, 2002). Commercially available stands have been extensively described (Linares, 1987;Condit, Hubell, & Foster, 1993) and heavily exploited for wood during the last century (Lamb, 1953;Kursar, & Grauel, 2002).…”

mentioning

confidence: 99%

“…It accounts for 60-90% of the basal area in the lowlands forest subjected to periodic flooding distributed from Nicaragua to Colombia and Jamaica (Gonzáles, Gómez, & Arteaga, 1991;Kursar, & Grauel, 2002). Commercially available stands have been extensively described (Linares, 1987;Condit, Hubell, & Foster, 1993) and heavily exploited for wood during the last century (Lamb, 1953;Kursar, & Grauel, 2002). However, there is still a lack of reliable information about the effects of logging activities on the structure and diversity of these forests (Grauel, 2004;Webb, 1997Webb, , 1999.…”

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confidence: 99%

Impactos de la extracción en la estructura y la dinámica de plántulas en un bosque tropical dominado por Prioria copaifera (Fabaceae), (Talamanca, Costa Rica)

Valverde‐Barrantes

Rocha

2013

RBT

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The factors that determine the existence of tropical forests dominated by a single species (monodominated forests) have been the subject of debate for a long time. It has been hypothesized that the low frequency of disturbances in monodominated forests and the tolerance to shade of the monodominant species are two important factors explaining the prolonged dominance of a single species. We determined the role of these two factors by examining the effects of logging activities on the floristic composition and seedling dynamics in a Prioria copaifera dominated forest in Southeastern Costa Rica. We determined the floristic composition for trees ≥2.5cm DBH and the associated recruitment, survival and mortality of tree canopy seedlings in two sites logged two (L-02) and 12 years (L-12) prior to sampling and an unlogged forest (ULF). Our results showed that L-02 stands had lower species richness (25 species) than the L-12 and ULF stands (49 and 46 species, respectively). As expected, we found significant logging effects on the canopy structure of the altered forests, particularly when comparing the L-02 and the ULF stands. Seedling density was higher in ULF (0.96 seedlings/ m 2 ) than in the L-02and L-12 stands (0.322 and 0.466 seedlings/m 2 , respectively). However, seedling mortality was higher in the ULF stands (54%) than in the L-02 (26%) and L-12 (15%) stands. P. macroloba in L-02 was the only species with abundant regeneration under P. copaifera in L-02 stand, where it accounted for 35% of the seedlings. Despite the reduction in seedling abundance observed after logging, P. copaifera seems to maintain large seedling populations in these forests, suggesting that this species maintains its dominance after logging disturbances. Our findings challenge the hypothesis that the regeneration of monodominant species is not likely to occur under heavily disturbed canopy conditions.

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Logging from Rivers May Control Human Invasions

Cited by 2 publications

References 3 publications

Burning and logging differentially affect endemic vs. widely distributed butterfly species in Borneo

Burning and logging differentially affect endemic vs. widely distributed butterfly species in Borneo

Impactos de la extracción en la estructura y la dinámica de plántulas en un bosque tropical dominado por Prioria copaifera (Fabaceae), (Talamanca, Costa Rica)

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