Claim · model-written summary
Trees in lower girth classes accounted for 52-86% of stand density in all fragments except the 0.5-ha fragments.
- Taxon
- Treese2
- Outcome
- stand densitye2
- Value
- 52-86%e2
- Qualifier
- in all fragments except in 0.5-ha fragmentse2
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirection
Verbatim
e2“Trees in lower girth classes (15-55 cm circumference at breast height, CBH) accounted for 52-86% of stand density in all fragments except in 0.5-ha fragments where middle girth class (55-95 cm CBH) accounted for 47% of the total stand density”
Title
Prakash Tripathi Om; Rangdajied Reynald Khongjee Biodiversity Science 2010. doi:10.3724/sp.j.1003.2010.222
Other claims from this paper (12)
- Association Species richness of tree species was positively related to forest fragment size.
- Association Stand density and basal cover of tree species were unrelated to forest fragment size.
- Association Diversity and dominance indices of tree species were unrelated to forest fragment size.
- Observation A majority of woody tree species were contagiously distributed, making the forest community highly patchy.
- Observation Between the fragments, low Sorensen similarity and high Whittaker beta-diversity indicate marked difference in tree species composition.
- Observation The maximum stand density, basal area and Shannon diversity index of tree species were recorded in the 5-ha fragment.
- Observation The maximum Simpson dominance index of tree species was recorded in the 5-ha fragment.
- Observation In the 0.5-ha fragments, middle girth class trees accounted for 47% of total stand density.
- Observation The overall density of seedlings, saplings and adult trees formed a pyramidal structure.
- Observation The sapling-to-adult period was the critical stage in tree life cycles, with maximum mortality during this period.
- Observation Tree regeneration was not limited, as shown by a high density of saplings.
- Mechanism Human activities may have decreased tree diversity in the smaller fragments.