Predation on mangrove propagule under four light intensity habitats in Kabili-Sepilok and Elopura Forest Reserves Sabah

Chong Fung Yun, . and Kueh Roland, . and Mojiol Andy Russell, . (2015) Predation on mangrove propagule under four light intensity habitats in Kabili-Sepilok and Elopura Forest Reserves Sabah. [Proceedings Paper]

Mangroves generally occupy a narrow niche between the marine and terrestrial environment. In this environment seed predation is more important than microsite competition because it determines the plant population. A study on propagule predation especially to look into the mortality percentages of mangrove tree species is important in order to find out the factors that affect the establishment of mangrove seedlings. Four study sites were established at the Kabili-Sepilok Elopura riverbanks. Six species namely Bruguiera sexangula B. parvifolia B. gymnorrhiza Ceriops tagal Rhizophora apiculata and R. mucronata were investigated. Within each site four replicates of 5 x 5 m plots were established with 6 individual propagules randomly selected from each species and planted vertically. The survival status of propagules namely eaten washed away and no changes were observed and recorded in a period of 45 days. The study sites selected were naturally found to have small gap 7 7m big gap 15 15m closed canopy 50 and shaded canopy 80. Our findings showed mortality percentages of propagules caused by predators have the least in small gap 7 7m big gap 15 15m closed canopy 80 shaded canopy 50. Propagules of Bruguiera sexangula and B. parvifolia were the most consumed. In conclusion propagule predators mainly crabs were the major cause of mortality and this predation is less serious in smaller gaps.

Full text available from: Official URL: http://www.forest.sabah.gov.my/docs/frc/Other.Conf...

Abstract

Mangroves generally occupy a narrow niche between the marine and terrestrial environment. In this environment seed predation is more important than microsite competition because it determines the plant population. A study on propagule predation especially to look into the mortality percentages of mangrove tree species is important in order to find out the factors that affect the establishment of mangrove seedlings. Four study sites were established at the Kabili-Sepilok Elopura riverbanks. Six species namely Bruguiera sexangula B. parvifolia B. gymnorrhiza Ceriops tagal Rhizophora apiculata and R. mucronata were investigated. Within each site four replicates of 5 x 5 m plots were established with 6 individual propagules randomly selected from each species and planted vertically. The survival status of propagules namely eaten washed away and no changes were observed and recorded in a period of 45 days. The study sites selected were naturally found to have small gap 7 7m big gap 15 15m closed canopy 50 and shaded canopy 80. Our findings showed mortality percentages of propagules caused by predators have the least in small gap 7 7m big gap 15 15m closed canopy 80 shaded canopy 50. Propagules of Bruguiera sexangula and B. parvifolia were the most consumed. In conclusion propagule predators mainly crabs were the major cause of mortality and this predation is less serious in smaller gaps.

[error in script]

Item Type:	Proceedings Paper
AGROVOC Term:	Mangrove forests
AGROVOC Term:	Mangroves
AGROVOC Term:	Forest reserves
AGROVOC Term:	Predation
AGROVOC Term:	Seeds
AGROVOC Term:	Predators
AGROVOC Term:	Plantlets seedlings
AGROVOC Term:	Bruguiera
AGROVOC Term:	Rhizophora apiculata
AGROVOC Term:	Rhizophora
Geographical Term:	MALAYSIA
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 05:16
URI:	http://webagris.upm.edu.my/id/eprint/13761

Actions (login required)

View Item