About: Femoral pore

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Femoral pores are a part of a holocrine secretory gland found on the inside of the thighs of certain lizards and amphisbaenians which releases pheromones to attract mates or mark territory. In certain species only the male has these pores and in other species, both sexes have them, with the male's being larger. Femoral pores appear as a series of pits or holes within a row of scales on the ventral portion of the animal's thigh.

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  • Femoralporen sind Hautdrüsen, die bei einigen Echsen auf der Innenseite der Oberschenkel sitzen. Sie sind in der Paarungszeit vor allem bei den Männchen vergrößert. Die von den Femoralporen abgegebenen Sekrete variieren chemisch zwischen den Geschlechtern und Individuen stark und absorbieren zumindest bei einigen Arten wie dem Wüstenleguan Ultraviolettstrahlung. Es wird daher vermutet, dass sie eine Rolle bei der Identifizierung des Geschlechts und möglicherweise verschiedener Individuen innerhalb einer Art spielen. (de)
  • Femoral pores are a part of a holocrine secretory gland found on the inside of the thighs of certain lizards and amphisbaenians which releases pheromones to attract mates or mark territory. In certain species only the male has these pores and in other species, both sexes have them, with the male's being larger. Femoral pores appear as a series of pits or holes within a row of scales on the ventral portion of the animal's thigh. Femoral pores are present in all genera in the families Cordylidae, Crotaphytidae, Hoplocercidae, Iguanidae, Phrynosomatidae, and Xantusiidae. They are absent in all genera in the Anguidae, Chamaeleonidae, Dibamidae, Helodermatidae, Scincidae, Xenosauridae, and Varanidae families. They are present in other lizards and amphisbaenians quite variably, some geckoes, Phelsuma, for example have these pores, others in the same family do not. In the desert iguana (Dipsosaurus dorsalis), the waxy lipids released from the femoral pores absorb ultraviolet (UV) wavelengths making them visible to species which can detect UV light. According to tests performed on the Green iguana, the variation in the chemicals released by the femoral pores can help to determine age, sex, and individual identity of the animal in question. Male leopard geckos (Eublepharis macularius), actually taste the secretions by flicking their tongues, if a male determines the other gecko in question is a male, the two will fight. In certain species such as geckoes, the females lack femoral pores altogether. In most families of lizards that have femoral pores, notably the iguanids, both sexes have femoral pores, but the males tend to be much larger than females of the same size and age. In these instances they are used as a marker for sexual dimorphism. The number of femoral pores varies considerably among species. For example, the number of pores in male lizards of the family Lacertidae can range between zero (e.g. Meroles anchietae) and 32 (e.g. Gallotia galloti) per limb. Also, shrub-climbing species tend to have fewer femoral pores than species inhabiting other substrates (such as sandy and rocky substrate), suggesting a role of the environment on the evolution of the chemical signaling apparatus in lacertid lizards. (en)
  • Les pores fémoraux sont une série d'orifices de la face intérieure des cuisses de certains lézards et des amphisbènes, apparaissant comme une série de petits creux suivant une ligne d'écailles, et d'où sont libérés les phéromones produites par une glande sécrétoire holocrine, ces phéromones attirant les partenaires sexuels ou servant à marquer le territoire. Selon les espèces, seuls les mâles possèdent ces pores ou les deux sexes en sont munis, ceux des mâles étant plus larges. (fr)
  • 대퇴공(Femoral Pore)은 짝을 유인하거나 영역을 표시하기 위해 페로몬을 분비하는, 어떤 도마뱀이나 지렁이도마뱀류의 허벅지 아랫쪽에 돋아난 (en:holocrine)분비선이다. 어떤 종은 수컷만이 대퇴공이 나있고, 다른 종들은 암수가 다 나있지만 수컷의 대퇴공이 좀 더 크다. 대퇴공은 동물의 허벅지의 밑부분에 일렬로 돋아나있다. 위치에 따라 항문 앞에 나있다면 항문전공(Preanal Pore)이라고 불린다. 대퇴공은 갑옷도마뱀과, 목걸이도마뱀과, 가시꼬리도마뱀과, 이구아나과, 뿔도마뱀과, 밤도마뱀과의 모든 속들에서 찾아볼 수 있으며. 무족도마뱀과, 카멜레온과, 장님도마뱀과, 독도마뱀과, 도마뱀과, 악어도마뱀과, 왕도마뱀과의 모든 속들에선 찾아볼 수 없다. 대퇴공은 다른 도마뱀류나 지렁이도마뱀류에서 군데군데 존재하는데, 예를 들면 낮도마뱀붙이류 같은 몇몇 도마뱀붙이류는 대퇴공을 가지고 있지만, 같은 과의 다른 속들은 가지고 있지 않다. 사막이구아나는 대퇴공에서 자외선을 흡수하는 왁스 지질을 분비하여, 자외선을 감지할 수 있는 동물들의 눈에 띈다. 녹색이구아나로 행해진 실험 결과, 대퇴공이 분비한 다양한 화학물질로 연령, 성별, 개체 식별에 활용할 수 있었다. 수컷 표범도마뱀붙이는 대퇴공의 분비물을 혓바닥을 낼름거려 맛보며, 분비물을 남긴 개체가 수컷이라면 서로 싸울 것이다. 도마뱀붙이류와 같은 어떤 종은 암컷은 대퇴공이 아예 존재하지 않는다. 도마뱀류에 속한 대부분의 과, 특히 이구아나과는 대퇴공이 있지만, 연령과 덩치가 같을 때 수컷의 대퇴공이 훨씬 컸다. 이는 성적 이형성의 예시로 볼 수 있다. 대퇴공의 숫자는 종마다 다양하다. 예를 들면 과의 수컷의 대퇴공은 허벅지당 0개(e.g. Meroles anchietae)에서 32개(e.g. Gallotia gallotia)에 이른다. 또한 덤불에 사는 종은 바위 무더기 따위의 다른 곳에 서식하는 종보다 대퇴공이 적은 경향이 있으며, 장지뱀류의 화학신호 분비선의 진화에 환경이 어떤 역할을 했는지 엿볼 수 있다. (ko)
  • Femorale poriën zijn klieropeningen die voorkomen bij reptielen. De klieren zelf worden dijklieren genoemd. Femorale poriën zijn gelegen aan de onderzijde van de dijen van de achterpoot. De dijklieren scheiden een vettige stof af die verschillende organische verbindingen zoals feromonen bevat. De functie van de poriën is het verspreiden van een geurvlag om partners te lokken en concurrenten te weren. (nl)
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  • Femoralporen sind Hautdrüsen, die bei einigen Echsen auf der Innenseite der Oberschenkel sitzen. Sie sind in der Paarungszeit vor allem bei den Männchen vergrößert. Die von den Femoralporen abgegebenen Sekrete variieren chemisch zwischen den Geschlechtern und Individuen stark und absorbieren zumindest bei einigen Arten wie dem Wüstenleguan Ultraviolettstrahlung. Es wird daher vermutet, dass sie eine Rolle bei der Identifizierung des Geschlechts und möglicherweise verschiedener Individuen innerhalb einer Art spielen. (de)
  • Les pores fémoraux sont une série d'orifices de la face intérieure des cuisses de certains lézards et des amphisbènes, apparaissant comme une série de petits creux suivant une ligne d'écailles, et d'où sont libérés les phéromones produites par une glande sécrétoire holocrine, ces phéromones attirant les partenaires sexuels ou servant à marquer le territoire. Selon les espèces, seuls les mâles possèdent ces pores ou les deux sexes en sont munis, ceux des mâles étant plus larges. (fr)
  • Femorale poriën zijn klieropeningen die voorkomen bij reptielen. De klieren zelf worden dijklieren genoemd. Femorale poriën zijn gelegen aan de onderzijde van de dijen van de achterpoot. De dijklieren scheiden een vettige stof af die verschillende organische verbindingen zoals feromonen bevat. De functie van de poriën is het verspreiden van een geurvlag om partners te lokken en concurrenten te weren. (nl)
  • Femoral pores are a part of a holocrine secretory gland found on the inside of the thighs of certain lizards and amphisbaenians which releases pheromones to attract mates or mark territory. In certain species only the male has these pores and in other species, both sexes have them, with the male's being larger. Femoral pores appear as a series of pits or holes within a row of scales on the ventral portion of the animal's thigh. (en)
  • 대퇴공(Femoral Pore)은 짝을 유인하거나 영역을 표시하기 위해 페로몬을 분비하는, 어떤 도마뱀이나 지렁이도마뱀류의 허벅지 아랫쪽에 돋아난 (en:holocrine)분비선이다. 어떤 종은 수컷만이 대퇴공이 나있고, 다른 종들은 암수가 다 나있지만 수컷의 대퇴공이 좀 더 크다. 대퇴공은 동물의 허벅지의 밑부분에 일렬로 돋아나있다. 위치에 따라 항문 앞에 나있다면 항문전공(Preanal Pore)이라고 불린다. 대퇴공은 갑옷도마뱀과, 목걸이도마뱀과, 가시꼬리도마뱀과, 이구아나과, 뿔도마뱀과, 밤도마뱀과의 모든 속들에서 찾아볼 수 있으며. 무족도마뱀과, 카멜레온과, 장님도마뱀과, 독도마뱀과, 도마뱀과, 악어도마뱀과, 왕도마뱀과의 모든 속들에선 찾아볼 수 없다. 대퇴공은 다른 도마뱀류나 지렁이도마뱀류에서 군데군데 존재하는데, 예를 들면 낮도마뱀붙이류 같은 몇몇 도마뱀붙이류는 대퇴공을 가지고 있지만, 같은 과의 다른 속들은 가지고 있지 않다. (ko)
rdfs:label
  • Femoralpore (de)
  • Femoral pore (en)
  • Pore fémoral (fr)
  • 대퇴공 (ko)
  • Femorale porie (nl)
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