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Mating behavior of the Mongolian racerunner (Eremias argus; Lacertidae, Reptilia)
Kim, Bin-Na,Kim, Ja-Kyeong,Park, Dae-Sik The Korean Society for Integrative Biology 2012 Animal cells and systems Vol.16 No.4
Information about the mating behaviors of an endangered species is critical for the understanding of the natural history of the species as well as in situ and ex situ breeding programs designed to rehabilitate field populations. We describe the mating behaviors of the Mongolian racerunner (Eremias argus), an endangered species in South Korea. The mating of this species consists of precopulatory, copulatory, and postcopulatory stages and is composed of 12 different mating behaviors. During the postcopulatory stage, other males or females not involved in mating show more interference behaviors than during the precopulatory and copulatory stages. The male E. argus has an extraordinarily long postcopulatory bite, which may function as a type of mate-guarding behavior. This study is the first report on the mating behavior of a South Korean reptile.
Kim, Ja-Kyoung,Song, Jae-Young,Lee, Jung-Hyun,Park, Dae-Sik The Ecological Society of Korea 2010 Journal of Ecology and Environment Vol.33 No.4
In this study, we have evaluated the physical characteristics of neonate, female, and male Mongolian racerunners (Eremias argus) and determined the age structure of a population of the species in a field located in Taean-gun, Chungnam, South Korea. The physical parameters of females and males, including snout-vent length (SVL), head length, head width, and body mass were found to be significantly interrelated. Male Mongolian racerunners exhibited significantly longer heads than the females, but other physical parameters, such as SVL, head width, and body mass did not differ between the female and male specimens. In the study population, the females ranged in age from two to eleven years old and the males ranged between two to eight years of age. The number of females and males, when separated into different age classes, did not differ within each age class. Male Mongolian racerunners evidenced greater SVL growth coefficients than the females, but asymptotic SVL did not differ between the females and males.
Mating behavior of the Mongolian racerunner (Eremias argus; Lacertidae, Reptilia)
김빛나,박대식,김자경 한국통합생물학회 2012 Animal cells and systems Vol.16 No.4
Information about the mating behaviors of an endangered species is critical for the understanding of the natural history of the species as well as in situ and ex situ breeding programs designed to rehabilitate field populations. We describe the mating behaviors of the Mongolian racerunner (Eremias argus), an endangered species in South Korea. The mating of this species consists of precopulatory, copulatory, and postcopulatory stages and is composed of 12different mating behaviors. During the postcopulatory stage, other males or females not involved in mating show more interference behaviors than during the precopulatory and copulatory stages. The male E. argus has an extraordinarily long postcopulatory bite, which may function as a type of mate-guarding behavior. This study is the first report on the mating behavior of a South Korean reptile.
태안해안국립공원에 서식하는 표범장지뱀(파충강 : 장지뱀과) 먹이 분석
정종철(Jong-Chul Jeong),송재영(Jae-Young Song) 국립공원연구원 2010 국립공원연구지 Vol.1 No.1
태안해안국립공원에 서식하는 표범장지뱀의 먹이 구성을 알아보기 위해 암컷 4개체와 수컷 2개체 등 총 6개체를 대상으로 먹이원과 체장, 두장 등 형태형질을 측정하였다. 또한, SPSS 11.0을 이용하여 통계분석을 수행하였다. 그 결과 위에서 총 8목 13과의 종이 확인되었으며, 목별로는 나비목 (30.6%), 거미목(20.4%), 집게벌레목(18.4%), 단각목(10.2%), 딱정벌레목(8.2%), 매미목(6.1%), 메뚜기목(4.1%) , 풀잠자리목(2.0%) 순으로 나타났다. In order to analyze food item of Eremias argus collected in Taeanhaean national park, we analyzed six specimens, 4 females and 2 males, and these specimens maesured the morphological characteristics such as Snout-vent length (SVL), Head width (HW) to 0.01 mm using digital caliper. Additionally we analyzed statistical analysis by SPSS 11.0 program. As a results, Food item of E. argus appeared 8 orders, 13 families in stomach content, then food item composed Lepidoptera (30.6%), Araneae (20.4%), Dermaptera (18.4%), Amphipoda (10.2%), Coleoptera (8.2%), Homoptera (6.1%), Orthoptera (4.1%) and Neuroptera (2.0%).
김자경,송재영,이정현,박대식 한국생태학회 2010 Journal of Ecology and Environment Vol.33 No.4
In this study, we have evaluated the physical characteristics of neonate, female, and male Mongolian racerunners (Eremias argus) and determined the age structure of a population of the species in a field located in Taean-gun, Chungnam,South Korea. The physical parameters of females and males, including snout-vent length (SVL), head length, head width,and body mass were found to be significantly interrelated. Male Mongolian racerunners exhibited significantly longer heads than the females, but other physical parameters, such as SVL, head width, and body mass did not differ between the female and male specimens. In the study population, the females ranged in age from two to eleven years old and the males ranged between two to eight years of age. The number of females and males, when separated into different age classes, did not differ within each age class. Male Mongolian racerunners evidenced greater SVL growth coefficients than the females, but asymptotic SVL did not differ between the females and males.
장민호 ( Min Ho Chang ),오홍식 ( Hong Shik Oh ) 한국환경생태학회 2012 한국환경생태학회지 Vol.26 No.5
본 연구는 한국에 서식하는 장지뱀과 3종인 표범장지뱀(Eremias argus), 아무르장지뱀(T. amurensis), 줄장지뱀(T. wolteri)의 외부 형질에 대한 성적 크기 차이(SSD)를 알아보기 위하여 수행되었다. 외부 형질 중 주둥이-항문 길이, 꼬리 길이, 머리 길이, 머리 폭, 앞다리 길이, 뒷다리 길이와 같은 6개 부위를 중심으로 수컷과 암컷을 비교하였다. 머리-항문 길이는 student`s t 검정을, 나머지 부위는 머리-항문 길이를 공변량으로 이용하여 공분산 검정을 수행하였다. 머리 길이와 꼬리길이는 일반적인 장지뱀과의 특성과 마찬가지로 한국산 장지뱀과 3종 모두 수컷이 암컷보다 긴 것으로 나타났다. 추가적으로 표범장지뱀은 머리 넓이, 앞다리 길이, 뒷다리 길이, 줄장지뱀은 머리 넓이에서 수컷이 암컷보다 길었다. 머리-항문 길이는 한국산 장지뱀과 3종 모두 암 수 사이에서 유의한 차이가 없었다. 머리-항문 길이의 SSD의 원인을 파악하기 위해서는 수컷간의 싸움과 암컷 머리-항문 길이와 한 배 산란수의 관계와 같은 생태학적 정보가 필요하다. 한국산 장지뱀과 3종에 대한 생태학적 연구가 계속 진행된다면 SVL에서 SSD가 일어나지 않은 이유를 설명할 수 있을 것이다. This study was conducted to find the sexual size dimorphism (SSD) in morphometric characters of three species, Eremias argus, Takydromus amurensis and T. wolteri in lacertid lizard from Korea. Six external traits, snout-vent length, tail length, head length, head width, forelimb length and hind-limb length were focused to compare two sexes among the each three lizards. Student`s t-test was used to compare the adult SVL between the sexes for each species. For the other parts of the body, a one-way analysis of covariance (ANCOVA) with SVL as the covariate was used. In all these species, males have longer tail and head than females like general lacertid lizard. In addition, male E. arugus have broader head and longer forelimbs and hind-limbs than conspecific females. Likewise, male T. wolteri have broader head than females. In the three lacertid lizards from Korea, snout-vent length did not significantly differ between the sexes. To understand the causes for SSD in SVL, ecological information, such as the presence/absence of male-male combat and the correlation between the SVL of female and litter size, is required. Therefore, further ecological study on the three species of lacertid lizard from Korea will make it possible to explain the reason SSD is not found in SVL.