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Diversity, stratification and temporal dynamics of geometrid moths (lepidoptera: geometridae) in Kubah Lowland Mixed Dipterocarp Forest, Sarawak

The diversity and stratification of the geometrid moths was investigated in a mixed dipterocarp forest, Kubah National Park, Sarawak. Modified Pennsylvanian light traps illuminated with a 160 Watt mercury vapour lamp were used to sample moths in the understorey (1 m) and canopy (32 m) strata. From a...

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Main Author: Irene, Christianus
Format: Thesis
Language:English
Published: Universiti Malaysia Sarawak, (UNIMAS) 2012
Subjects:
SF Animal culture
Online Access:http://ir.unimas.my/id/eprint/13555/3/Irene.pdf
http://ir.unimas.my/id/eprint/13555/
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spelling my.unimas.ir.135552024-02-27T08:18:57Z http://ir.unimas.my/id/eprint/13555/ Diversity, stratification and temporal dynamics of geometrid moths (lepidoptera: geometridae) in Kubah Lowland Mixed Dipterocarp Forest, Sarawak Irene, Christianus SF Animal culture The diversity and stratification of the geometrid moths was investigated in a mixed dipterocarp forest, Kubah National Park, Sarawak. Modified Pennsylvanian light traps illuminated with a 160 Watt mercury vapour lamp were used to sample moths in the understorey (1 m) and canopy (32 m) strata. From a total of 336 samples, 916 individuals representing 173 species of geometrid moths were recorded. A total of 149 species and 675 individuals of geometrids were sampled in the understorey while 100 species and 241 individuals in the canopy stratu Overall, species diversity of geometrid moth in Kubah mixed dipterocarp forest was found to be considerably high (ex = 63.09 ±3 AI) for a single moth family and fell in the range of previously reported diversity score in Bornean rain forests. Results from the present study unequivocally showed that both understorey (ex = 59.17 ± 3.66) and canopy (ex = 64.09 ± 6.7) strata did not differ significantly in terms of diversity, however species richness and abundance tend to be numerica]Jy high in the understorey stratum. Kubah lowland mixed dipterocarp forest was characterised by the dominance of Ennominae and the presence of the least diverse Bomean geometrid subfamily Oenochrominae. A unimodal pattem with a peak of abundance in the understorey stratum was detected in Ennominae and ground specialists were represented from the tribes Hypochrosini, Boarmiini and Baptini. Markedly, data from the present study revealed that geometrid moth populations fluctuate through time, particularly the subfamily Ennominae and Geometrinae. Yet, the fluctuations in geometrid moth populations in response to meteorological factors and moonlight illumination were insignificant. Universiti Malaysia Sarawak, (UNIMAS) 2012 Thesis NonPeerReviewed text en http://ir.unimas.my/id/eprint/13555/3/Irene.pdf Irene, Christianus (2012) Diversity, stratification and temporal dynamics of geometrid moths (lepidoptera: geometridae) in Kubah Lowland Mixed Dipterocarp Forest, Sarawak. Masters thesis, Universiti Malaysia Sarawak, (UNIMAS).
institution Universiti Malaysia Sarawak
building Centre for Academic Information Services (CAIS)
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sarawak
content_source UNIMAS Institutional Repository
url_provider http://ir.unimas.my/
language English
topic SF Animal culture
spellingShingle SF Animal culture
Irene, Christianus
Diversity, stratification and temporal dynamics of geometrid moths (lepidoptera: geometridae) in Kubah Lowland Mixed Dipterocarp Forest, Sarawak
description The diversity and stratification of the geometrid moths was investigated in a mixed dipterocarp forest, Kubah National Park, Sarawak. Modified Pennsylvanian light traps illuminated with a 160 Watt mercury vapour lamp were used to sample moths in the understorey (1 m) and canopy (32 m) strata. From a total of 336 samples, 916 individuals representing 173 species of geometrid moths were recorded. A total of 149 species and 675 individuals of geometrids were sampled in the understorey while 100 species and 241 individuals in the canopy stratu Overall, species diversity of geometrid moth in Kubah mixed dipterocarp forest was found to be considerably high (ex = 63.09 ±3 AI) for a single moth family and fell in the range of previously reported diversity score in Bornean rain forests. Results from the present study unequivocally showed that both understorey (ex = 59.17 ± 3.66) and canopy (ex = 64.09 ± 6.7) strata did not differ significantly in terms of diversity, however species richness and abundance tend to be numerica]Jy high in the understorey stratum. Kubah lowland mixed dipterocarp forest was characterised by the dominance of Ennominae and the presence of the least diverse Bomean geometrid subfamily Oenochrominae. A unimodal pattem with a peak of abundance in the understorey stratum was detected in Ennominae and ground specialists were represented from the tribes Hypochrosini, Boarmiini and Baptini. Markedly, data from the present study revealed that geometrid moth populations fluctuate through time, particularly the subfamily Ennominae and Geometrinae. Yet, the fluctuations in geometrid moth populations in response to meteorological factors and moonlight illumination were insignificant.
format Thesis
author Irene, Christianus
author_facet Irene, Christianus
author_sort Irene, Christianus
title Diversity, stratification and temporal dynamics of geometrid moths (lepidoptera: geometridae) in Kubah Lowland Mixed Dipterocarp Forest, Sarawak
title_short Diversity, stratification and temporal dynamics of geometrid moths (lepidoptera: geometridae) in Kubah Lowland Mixed Dipterocarp Forest, Sarawak
title_full Diversity, stratification and temporal dynamics of geometrid moths (lepidoptera: geometridae) in Kubah Lowland Mixed Dipterocarp Forest, Sarawak
title_fullStr Diversity, stratification and temporal dynamics of geometrid moths (lepidoptera: geometridae) in Kubah Lowland Mixed Dipterocarp Forest, Sarawak
title_full_unstemmed Diversity, stratification and temporal dynamics of geometrid moths (lepidoptera: geometridae) in Kubah Lowland Mixed Dipterocarp Forest, Sarawak
title_sort diversity, stratification and temporal dynamics of geometrid moths (lepidoptera: geometridae) in kubah lowland mixed dipterocarp forest, sarawak
publisher Universiti Malaysia Sarawak, (UNIMAS)
publishDate 2012
url http://ir.unimas.my/id/eprint/13555/3/Irene.pdf
http://ir.unimas.my/id/eprint/13555/
_version_ 1792160589878919168
score 13.211869

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