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
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
1. The effect of typhoon on survivalship of Matrona cyanoptera. 2. Modes of phenotypic variation in Euphaea amphicyana.
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.

Teng-Yu Liu

Teng-Yu Liu

Title

Undergraduate Student 2016-

Species: Rhaetulus crenatus crenatus

Rhaetulus crenatus crenatus

Project

Fighting behaviour and life history observation of a stag beetle Rhaetulus crenatus crenatus.

Abstrct

E-mail:beetles1000@gmail.com

Link to Personal Web Pages

Global Facebook fan page

Research topic
Fighting behaviour and life history observation of a stag beetle Rhaetulus crenatus crenatus

Intro to be added.

“R.

Video recording of R. crenatus fighting.

Difference of Ritualized Fighting Behavior Between Stag Beetles Rhaetulus crenatus crenatus and Cyclommatus mniszechi

Sexual dimorphism can be seen in some stag beetles (Coleoptera: Lucanidae) . Male stag beetles have highly variable and impressive mandibles used for aggressive fightings to obtain food, territory and mates. Different stag beetle species may have specific fighting behaviors and fighting routes. We investigated the variation in fighting behavior of Rhaetulus crenatus crenatus and Cyclommatus mniszechi. Conspecific staged fighting trials were conducted in laboratory environment. Rhaetulus crenatus crenatus has 11 different behavior stages while C. mniszechi has 12. The 9 fighting stages of Initiation (I), Walking (W), Approach (A), Encounter (E), Clamp (C), Flip (F), Stand still (S), Pursue (U), and Retreat (R) were observed in both stag beetles. However, Provoke (Pr) and Push (Pu) are unique behaviors seen in R. crenatus crenatus. Body raising (B), Tussle (T) and Pressure (Pr) were found only in C. mniszechi. Fighting behavioral differences between these two stag beetles also lead to differences in fighting routes. During the stage of Push(Pu), Tussle (T), and Pressure (Pr), these two stag beetles have the closest physical contact with each other. At this stages, the two species place their front legs in different positions. Substantial differences in front tibia structure can be observed. There were two well-developed and immovable spins on the outer apex of the front tibia of R. crenatus crenatus while C. mniszechi only has one. We hypothesize that there is a correlation between structural differences of the tibia and fighting styles in stag beetles.

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