Member list
Current members
- Lan-Wei Yeh
- Ecology and evolution of Taiwanese Carabus ground beetles.
- Chung-Hsin Huang
- Master topic: Flucuating Asymmetry and Developmental Asymmetry of Cyclommatus mniszechi; PhD topic: Evolution of Mandible Morphology and Fighting Behavior in Stag Beetles
- Ying-Yuan Lo
- Systematics, Behavior and Evolution of Lynx Spiders.
- Leocris Batucan Jr.
- New Species and DNA Barcoding of the Mayfly (Ephemeroptera) in Mt. Malindang, Mindanao, Philippines.
- Chun-Yu Lin
- Parasitoid Wasps of Damselflies; Phylogenetics and Evolution Histories of Treehoppers
- Hsu-Yi Lin
- Fighting Behavior of Odontolabis siva parryi Stag Beetles
- Sheng Lin
- Transcriptome Profiling Psolodesmus mandarinus mandarinus Damselfly
- Pei-Hsuan Chang
- Thermal Adaptation and Habitat Preference of Psolodesmus mandarinus Damselfly
- Min-Chen Lin
- Disruptive Camauflage of Colors of Pachyrhynchus Weevils.
- Masahiko Tanahashi
- Ecology and Evolution of Pachyrhynchus Weevils.
- Su-Ping Lin
- Symbiotic Yeasts of Stag Beetles
- Jun-Ying Wang
- Conservation of Mortonagrion hirosei Damselflies
- Chin-Han Hsiao
- Fighting Behavior of Rhaetulus crenatus Stag Beetles
- Wei-Zhe Tseng
- Systematics and Evolution of Weevils
- Cheng-Tse Yung
- Maternal Gift of Pachyrhynchus sarcitis Weevils
Past members
- Jo-Fan Wang
- Territorial behavior, trait evolution.
- Yu-Hsun Hsu
- Mating strategy, behavioural ecology, molecular ecology, population genetics, molecular phylogenetics, biostatistics.
- Yi-Shou Yang
- Reproductive Isolation of Psolodesmus mandarinus subspecies.
- Wataru Kojima
- Evolution of male sexual traits in Taiwanese scarab beetles.
- Zhen-Yi Chen
- Fighting behavior and reproductive strategy of stag beetles.
- Teng-Yu Liu
- Fighting behaviour and life history observation of a stag beetle Rhaetulus crenatus crenatus.
- Princess Angelie S. Casas
- Insect Diversity and Evolution
- Lu-Yi Wang
- Defense Mechanism of Pachyrhynchus weevils.
- Hui-Yun Tseng
- Aposematic coloration, island biogeography.
- Yu-Jen Yu
- Variation and Adaptation of wings.
- Yen-Ting Chen
- Systematics and evolution of insects.
- Yun-Chieh Cheng
- Damselfly larval diet, molecular evolution.
- Tai-Chia Chiang
- The effect of aposematic colors of Pachyrhynchus weevils on avian predators.
- Yong-Chao Su
- Behavioral ecology, sociobiology, population genetics, and molecular phylogenetics.
- I-Ting Hsiao
- Variation of genitalia in Euphaea amphicyana.
- 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.
- Wei-Liang Xiao
- Variation of wing veins in Euphaea amphicyana.
- Hung-Nien Chen
- Chu-Yen Cheng
- Phylogeography of a Philippine's treehopper, Leptocentrus reponens.
- Che-Yu Kuan
- Variation of mandibles in stag beetles.
- Yat-Hung Lee
- Speciation of Euphaea damselflies.
- 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
- Jillian del Sol
- Behavioral Ecology; Mating System Ecology; Weapon Ecology and Evolution; Evolutionary Biology
- Ian Dela Cruz
- New Species and DNA Barcoding of the Stonefly (Plecoptera) in Mt. Malindang, Mindanao, Philippines.
- Shinya Komata
- Ecology & Evolution of Wing Polymorphism in a Mimetic Swallowtail Butterfly, Papilio memnon.
- 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.
Hung-Nien Chen
Title
Master Student 2009
Species: Euphaea amphicyana
Project
1. The effect of typhoon on survivalship of Matrona cyanoptera. 2. Modes of phenotypic variation in Euphaea amphicyana.
Abstrct
E-mail：the_god_of_nian@yahoo.com.tw
1. Survival Rate, Sex Ratio, and the Effect of a Typhoon on a Damselfly, Matrona cyanoptera (Calopterygidae) of Subtropical Taiwan
Population study investigates the change of species in time and space. Mark-recapture method is one of the most efficient ways to study population dynamics. Matrona cyanoptera is one of the most common damselflies in the lowland streams of Taiwan, but the basic life history of this species is still lacking. We estimated the longevity and movement in adult M. cyanoptera using mark-recapture method. The study site is a stretch of 300-meter stream located in Whow-Pai-Kun river of Nantou county. We marked 168 individuals and recorded 2,082 recapture data from July 3rd to October 25th of 2009. The results showed that the population size for M. cyanoptera during the study period was close to 1,061. The estimated average longevity of adults was 27.2±0.3 days and there was no significantly difference between sexes. The observed maximum longevity was 68 days for males, and 70 days for females. Maximum average range of movement was 103±95 meters. The survey was interrupted by Morakot typhoon from August 8th to 10th. Eighty-eight percent of previously marked individuals were absent at the study site. The sex ratio of adults was not significantly different before Morakot typhoon (p=0.13, ♂=21, ♀=32), but it was significantly different after Morakot typhoon (p<0.01, ♂=87, ♀=26). The results suggested that Morakot typhoon changed the sex ratio of this species, as well as having a great effect on local population size.
Mating of marked M. cyanoptera individuals.
2. Modes of phenotypic diversification in an endemic Philippine damselfly, Euphaea amphicyana (Odonata, Euphaeidae)
Phenotypic variation can result from either one or the combination of three main evolutionary processes: geographic isolation, sexual selection, and ecological segregation. Euphaea amphicyana is an endemic damselfly of the Philippines and exhibits extensive among-island variation in the shape and color of wings. This study investigates the preponderance of the above three evolutionary processes underlying the phenotypic diversification of E. amphicyana. We test three predictions: 1) Geographic isolation: the rate of morphological variation should be correlated with geographic distance and neutral rate of evolution. 2) Sexual selection: morphological characters presumably under sexual selection, such as wing coloration and genital fossa, should not be correlated with neutral evolution. 3) Ecological segregation: the character sets presumably under natural selection should not correlate with neutral evolution. The morphological measurement and molecular data were used to study the divergence of characters and reconstruct phylogenies. Internodal distances of morphological characters and molecular phylogenies will be compared using multiple correlation and ANOVA. The preliminary result of COII haplotype networks showed three distinct E. amphicyana groups across islands. Additional molecular markers, such as nuclear introns and microsatellite DAN, and morphological character sets will be developed.