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Alligator - Вид в
Alligatoridae - - Классификация -
- Alligatoridae
- Crocodilia
- Reptilia
- Chordata
- Animalia
- Вид в
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Alligator mississippiensis (Daudin, 1801)
American alligator
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Изображение на Google |
No photo available for this species.No drawings available for Alligatoridae.
Изображение на Google |
No photo available for this species.
Классификация / Names народные названия | синонимы | CoL | ITIS | WoRMS
Reptilia | Crocodilia | Alligatoridae
Environment: milieu / climate zone / пределы глубины / distribution range экология
; пресноводный; солоноватоводный. Subtropical; 36°N - 25°N, 106°W - 75°W
Distribution страны | регионы FAO | Ecosystems | места находок | интродукции
Western Central Atlantic: Southeast USA (Alabama, Arkansas, North and South Carolina, Florida, Georgia, Louisiana, Mississippi, Oklahoma, Texas).
Length at first maturity / Size / Weight / Возраст
половая зрелость: Lm 1.8 range ? - ? cm Max length : 427 cm TL самец/пол неопределен; (ссылка 80293); 309.9 cm TL (female); наибольший вес (опубликованные данные): 473.10 g (ссылка 80293); наибольший вес (опубликованные данные): 473.10 g
Краткое описание морфология
Broad snout with bony nasal bridge; edge of upper jaw overlaps with teeth of lower jaw when mouth closed. Juveniles are miniature adults with bright yellow cross-bands on black skin; yellow bands turn to olive brown. Skin around jaws, neck and belly are creamy white. Pale ventral surface, scales near tail black. Bony plates on scales of belly. Olive green eyes (Ref. 77040). Sexual dimorphism visible only on juveniles and adults greater than 0.6 m.
Can tolerate saline waters for short periods of time. Construct burrows used for shelter and hibernation at low temperatures. Construct alligator holes for refuge during dry periods. May cross land when alligator holes dry out to find another body of water. Opportunistic feeders. Juveniles feed on small invertebrates (insects, frogs) and small fish. Dietary range increases as size increases and larger adults consume all aquatic and terrestrial prey (fish, turtles, small mammals, birds, reptiles including small alligators). May also scavenge. Feeding activity related to temperature, decreasing at temperatures below 20 to 23°C. Ectothermic. Home range size of adult males is 2000 acres (Ref. 80292).
Life cycle and mating behavior половая зрелость | размножение | нерест | Eggs | Fecundity | Larvae
Courtship rituals involve rapid head-slapping on water surface, body postures reinforced with odor from musk glands. Courtship synchronizes spermatogenesis and ovulation. Female creates the nest, often the same site each year and near an 'alligator hole' from freshly torn up vegetation and mud (usually at the start of summer) above the water level. Female lays 20-50 eggs (average of 40-45), remains near the nest until eggs hatch, sometimes breaking the egg to help hatchlings out. She then takes 8-10 hatchlings in her mouth and carries them to the water encouraging them to swim out. Juveniles form pods which often stay close to the mother for a period of up to 2 years.
Основная ссылка
ссылки | координатор | соавторы
Britton, A. 2002. (ссылка 77040)
Статус Красного Списка МСОП
(ссылка 130435: Version 2024-2)
Статус СИТЕС (ссылка 108899)
Appendix II: International trade monitored
CMS (ссылка 116361)
Not Evaluated
Угроза для людей
Traumatogenic
Использование человеком
рыболовство: коммерческий; аквакультура (рыбоводство): коммерческий
FAO - рыболовство: landings | FishSource | Sea Around Us
инструменты
дополнительная информация
Trophic Ecology
экология
Population dynamics
Life cycle
Distribution
Physiology
Oxygen consumption
Human Related
Stamps, coins, misc.
Outreach
ссылки
ресурсы в Интернет
BHL | BOLD Systems | CISTI | DiscoverLife | FAO(рыболовство: ; publication : search) | Fishipedia | GenBank (Геном, Нуклеотид) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | Tree of Life | Wikipedia (Вперёд, поиск) | Zoological Record
Estimates based on models
Категория цены
(ссылка 80766):
Unknown.