Disentangling the regeneration niche of Vatica odorata (Griff.) Symington using point pattern analysis

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

Abstract

Seed dispersal and environmental heterogeneity, and the effects of their interaction, are perceived to be determinants of the spatial patterns of trees. We applied the spatial point process to analyse Vatica odorata (Griff.) Symington (Dipterocarpaceae) in Cuc Phuong National Park of Vietnam to understand its spatial patterns, and to decipher the main factors affecting seedling establishment of the species. We established a total of 12 replicated plots, each of which had one or two seed trees in the centre, and recorded all regeneration plants of V. odorata with their positions. A total of 671 regeneration plants were found. Covariates, including canopy, ground cover, and distance to seed trees, were measured on systematic grids of 4 × 4 m. In the context of the spatial point processes, we used a generalised linear mixed model, considering a random effect of the plot. In the model, the greatest distance observed is about 35 m from the seed tree. The canopy and ground cover have a significant impact on the regeneration of the species: The intensity of regenerating stems was greatest with a canopy cover of 70%. The ground cover range for good development of regenerating plants was between 10 and 30%.

Details

Original languageEnglish
Pages (from-to)336-360
Number of pages25
JournalEcologies
Volume3
Issue number3
Publication statusPublished - Sept 2022
Peer-reviewedYes

External IDs

Mendeley 939df6d8-6fc7-3fc5-bc19-4640ad915228
unpaywall 10.3390/ecologies3030026
ORCID /0000-0003-3796-3444/work/142242231
Scopus 85177780586

Keywords

Keywords

  • canopy cover, Vatica odorata, regeneration, distance to seed tree, spatial point pattern, ground cover, generalized linear mixed model

Library keywords