Coleoptera of Genting Highland, Malaysia: Species richness and diversity changes along the elevationsAcronym: MCNB-Musthafa-and-Abdullah-2019
Diversity studies of beetles have been fairly well covered by the scientific community, but they focused little on the diversity change across elevations in the montane ecosystems. Elevational beetle diversity has not been explored at Genting Highland, Malaysia. Therefore, the objective of this study was to assess and understand species richness, abundance and diversity changes among beetles at Genting Highland along the elevations. We used multiple trapping methods and compared compositional differences (beta diversity) between elevations. Moreover, we compared three different types of trapping methods.
The mountains in Malaysia, the Titiwangsa Range, are located in the centre from Pahang to Kelantan states. Genting Highland is on the Pahang and Selangor border in Bentong District, which is just 50 km from Kuala Lumpur, Malaysia.
All the collected samples were sorted and tallied to morphospecies level using established keys (Triplehorn and Johnson, 2005) and then cross checked with the Wildlife Department of Malaysia, University of Malaya, National University of Malaysia and Forestry department of Malaysia museum collections. The previous collection at our lab was also used to identify samples to morphospecies level.
The commonly used nonparametric estimators ACE (Abundance-based Coverage Estimator), ICE (Incidence-based Coverage Estimator) and Chao 1estimators were used to calculate species richness at each altitudinal band using PAST 3.07 (Hammer et al., 2001). The Clench model was used to estimate the sampling effort efficacy with the use of estimated species. Richness and slope of the species accumulation curve for all beetles collected from each elevational transect were plotted using STATISTICA 8.0 (StatSoft Inc. 2007).
Species abundance was calculated for all sampling methods at altitudinal band and differences between these values were analyzed with Kruskal-Wallis nonparametric tests. For diversity analysis, the Shannon diversity index, the Simpson diversity index and Fisher’s alpha diversity indexes were used, while the Margalef index was used to calculate calculation. Cluster analysis for abundance was conducted in STATISTICA 8.0, using a dissimilarity matrix with the Bray-Curtis index as a distance measure, and the Ward´s amalgamation algorithm. Beta diversity was measured through Bray-Curtis index of similarity as for the faunistic similar¬ity between the four altitudinal sites. Cluster analysis was also performed, using PAST 3.07 (Hammer et al., 2001) to define groups of sites according to species composition, using the Bray-Curtis index as a distance measure and the UPGMA (Unweighted Pair-Groups Method using arithmetic Averages) method as an amalgamation algorithm.
Type of content
Includes: point occurrence data.
Musthafa, M. M., Abdullah, F., 2019. Coleoptera of Genting Highland, Malaysia: species richness and diversity changes along the elevations.
This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License.
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