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Member list

Current members

Jo-Fan Wang
1. The Territorial Behavior of Euphaea formosa (Odonata). 2. Tempo and Mode of Pronotal Evolution in Membracis Treehoppers.
Hung-Nien Chen
1. The effect of typhoon on survivalship of Matrona cyanoptera. 2. Modes of phenotypic variation in Euphaea amphicyana.
Lan-Wai Yeh
Yun-Chieh Cheng
What do damselfly larvae eat? DNA barcode analyses of larval diet in Matrona cyanoptera and Euphaea formosa.
Chung-Hsin Huang
Flucuating Asymmetry and Developmental Asymmetry of Cyclommatus mniszechi.
Hui-Yun Tseng
1. Biological function of coloration in Pachyrrhynchus tobafolius. 2. Phylogeny and color evolution of Pachyrrhynchus weevils. 3. Population genetics of Pachyrrhynchus weevils on Lanyu and Green Island.
I-Ting Hsiao
Variation of genitalia in Euphaea amphicyana.
Yen-Ting Chen
The effect of forest management of Mt. Da-Shiue on the morphological variation of a ground beetle, Carabus (Apotomopterus) masuzoi.
Jyun-Huei Huang
The fighting behavior of a stag beetle, Rhaetulus crenatus.
Shi-Ting Wu
Membracis Phyllotropis.
Chiao-Wei Lin
The fighting behavior of a stag beetle, Rhaetulus crenatus.
Yong-Chao Su
Behavioral ecology, sociobiology, population genetics, and molecular phylogenetics.

Past members

Wei-Liang Xiao
Variation of wing veins in Euphaea amphicyana.
Li-Wen Weng
Why do firefly larvae emit light?
Yat-Hung Lee
Speciation of Euphaea damselflies.
Che-Yu Kuan
Variation of mandibles in stag beetles.
Chu-Yen Cheng
Phylogeography of a Philippine's treehopper, Leptocentrus reponens.
Ming-Yu Chen
Phylogeography and population history of the treehoppers, Centrochares horifficus from the Philippines Archipelago.
Shao-Chang Huang
Visual Communication of Matrona cyanoptera
Jen-Pan Huang
Population Genetics and Phylogeographic Analyses of Formosan Damselfly, Euphaea Formosa (Insecta: Odonata: Euphaeidae) from Taiwan
Wei-Yun Chen
Molecular and Phylogenetic Characterization of Endosymbiotic Bacteria of the Froghopper, Okiscarta uchidae (Insecta: Hemiptera: Cercopidae)

Visiting scholars and students

Vanitha Williams
Predatory potential of waterbug, Diplonychus rusticus and dragonfly, Diplacodes trivialis on mosquito larvae.
Marina Vilenica
Dragonfly composition (Insecta, Odonata) in wetland area of Turopolje region, Croatia
Klaas-Douwe 'KD' B. Dijkstra
History, diversity and identification of dragonflies and damselflies (Odonata).
Erin McCullough
" Diversification of weapon form: aerodynamic costs of beetle horns.
Ashley E. King
Intrasexual combat and intersexual antagonistic co-evolution in horned beetles.

Lan-Wai Yeh

Lan-Wai Yeh

Title

PhD Student 2010

Species: Carabus

Carabus

Project

Ecology and evolution of Taiwanese Carabus ground beetles.

Abstrct

E-mail:lanwai37@yahoo.com.tw

The geographic variation in body size and shape of an organism may reflect the underlying evolutionary processes, including inter- or intra-species interaction, niche differentiation, and the history of the species. Carabus (Apotomopterus) masuzoi (Imura et Sato, 1989) is an endemic ground beetle species distributing in high mountains of the central Taiwan. All members of Carabus beetles are wingless and considered to have low dispersal capacity. We analyzed the geographic pattern of body size and shape variation in two C. masuzoi populations from Mt. Ta-Hsueh Shan and Mt. Tai-Ping Shan. We measured the body size of 25 males and 25 females for each populations and used a total of 62 landmarks of different ventral body segments. Our results showed that the overall ratio of female to male body length was 1.06, and the sexual difference in body size of the two populations were 1.08 (Mt. Ta-Hsueh Shan) and 1.05 (Mt. Tai-Ping Shan).The female body length of each of the two populations (22.72 ± 0.74 mm in Mt. Ta-Hsueh Shan, 23.98 ± 0.97 mm in Mt. Tai-Ping Shan) were significantly greater than that of males (20.68 ± 0.74 mm in Mt. Ta-Hsueh Shan, 22.78 ± 0.94 mm in Mt. Tai-Ping Shan) (p< 0.000). Female and male body lengths of Mt. Tai-Ping Shan were greater than that of Mt. Ta-Hsueh Shan (p < 0.000). The mean shape of head, pronotum and abdomen between the two populations were significantly different as indicated by bootstrap resampling F-test (p=0.004, 0.0044 and 0.0047, respectively). When the body size becomes greater, the body shape of the beetles appears to become more flatter. Our results suggest that the landmark-based geometric morphometrics is useful for quantifying the body size and shape variation of C. masuzoi populations, and the beetle population from Mt. Ta-Hsueh Shan and Tai-Ping Shan differ substantially in external morphology which may reflect the influence of ecological and evolutionary processes.

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