Regeneration dynamics of forest trees in permanent field laboratory areas at Mt. Makiling Forest Reserve

Luna, Amelita C.

doi:10.4016/17768.01

Cited by 1 publication

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“…If all seeds released will germinate and survived, the species will undoubtedly invade natural ecosystems. However, the seedling survival rate of S. macrophylla was lower compared with other natural forest species like Strombosia philippinensis, Artocarpus ovata, and Diospyrus pilosanthera which were also present in the area [15,16]. In Brazil, it was reported that only 1-2% of seedlings in the understory survived 8 years after germination [17].…”

Section: Species Richness In Pfla3mentioning

confidence: 96%

“…The nested plots located in-between zones of mixed forest and the mahogany plantation have a higher seedling diversity compared to those inside the plantation. As winged seeds of S. macrophylla are easily dispersed by wind [27,28], the germinated seeds have low survival rates [15] and were outcompeted by other indigenous trees species undershade [29] stage . Four (4) months after the first inventory, no newly developed S. macrophylla saplings were observed in plots outside plantation boundary.…”

Section: Population Structure Of Tree Components In Pfla3mentioning

confidence: 99%

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2019

RJLBPCS

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Laboratory Areas were developed to establish plantations of S. macrophylla. The species was identified as forest invasive based on a country report (FAO, 2015), thus the planting of the species possess potential threat especially on areas of high nature conservation significance. This study explored on the performance of S. macrophylla and the recruitment of indigenous species inside plantation. Sample plots were randomly established to assess diversity of standing trees and seedlings.Results showed that despite planted as a pure Mahogany stand, several indigenous tree species were already present inside plantation. Presently, the plantation had a composite Shannon's Diversity Index (H') of 2.549 for trees >5cm (Moderately High), whilst seedling diversity had an overall H' value of 1.930 (Very Low). Seedling recruitment of indigenous species was progressing and population of new species coming in was apparent. A total of 44 species belonging to 20 families and 29 genera was recorded in the area. Results suggest that despite identified as bio-invasive where the threat of biodiversity loss to species invasion is high, S. macrophylla was not successful in outcompeting indigenous species on adjacent natural forest. For 75 years after its establishment, the plantation remained and had not expanded towards neighboring natural community.

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Section: Species Richness In Pfla3mentioning

confidence: 96%