Reptilia |
Crocodilia |
Alligatoridae
ສະພາບແວດລ້ອມ: ສະພາບແວດລ້ອມ / ເຂດດິນຟ້າອາກາດ / ລະດັບຄວາມເລິກ / ຂອບເຂດການແຈກຢາຍ
ນິເວດວິທະຍາ
Benthic; ນ້ຳຈືດ; ນ້ຳກ່ອຍ. Subtropical; 36°N - 25°N, 106°W - 75°W
Western Central Atlantic: Southeast USA (Alabama, Arkansas, North and South Carolina, Florida, Georgia, Louisiana, Mississippi, Oklahoma, Texas).
ຄວາມຍາວໃນການເຕີບໂຕເຕັມຄັ້ງທໍາອິດ / ຂະໜາດ / ນ້ຳໜັກ / ອາຍຸ
ການຈະເລີນເຕັມໄວ: Lm 1.8 range ? - ? cm Max length : 427 cm TL ຕົວຜູ້/ບໍ່ມີເພດ; (ເອກະສານອ້າງອີງ 80293); 309.9 cm TL (female); ນ້ຳໜັກສູງສຸດທີ່ເຄຍຈັດພີມມາ: 473.10 g (ເອກະສານອ້າງອີງ 80293); ນ້ຳໜັກສູງສຸດທີ່ເຄຍຈັດພີມມາ: 473.10 g
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).
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.
Britton, A. 2002 Alligator mississippiensis (DAUDIN, 1801). Crocodilian Species List. [ttp://www.flmnh.ufl.edu/cnhc/csp_amis.htm#dist, accessed 16 July 2008]. (ເອກະສານອ້າງອີງ 77040)
ສະຖານະພາບບັນຊີແດງຂອງ IUCN
(ເອກະສານອ້າງອີງ 130435: Version 2025-2 (Global))
ສະຖານະ CITES (ເອກະສານອ້າງອີງ 108899)
CMS (ເອກະສານອ້າງອີງ 116361)
Not Evaluated
ໄພຂົ່ມຂູ່ຕໍ່ມະນຸດ
Traumatogenic
ການນໍາໃຊ້ຂອງມະນຸດ
ການປະມົງ: ເປັນສີນຄ້າ; ການລ້ຽງສັດນ້ຳ: ເປັນສີນຄ້າ
FAO - ການປະມົງ: landings search; Publication: search | FishSource | ທະເລອ້ອມຂ້າງພວກເຮົາ
ເຄື່ອງມື
ຂໍ້ມູນຕື່ມອີກ
ນະໂຍບາຍດ້ານປະຊາກອນການເຕີບໃຫຍ່ສູງສຸດ. ອາຍຸ / ຂະຫນາດຄວາມຍາວ-ນ້ໍາຫນັກ rel.ຄວາມຍາວ - ຄວາມຍາວ rel.ຄວາມຖີ່ຄວາມຍາວການແປງມະຫາຊົນຄວາມອຸດົມສົມບູນ ຟີຊິກສາດການບໍລິໂພກອົກຊີເຈນ
ມະນຸດທີ່ກ່ຽວຂ້ອງສະແຕມ, ຫຼຽນ, ອື່ນໆ.
ແຫຼ່ງອີນເຕີເນັດ
ການຄາດຄະເນໂດຍອີງໃສ່ແບບຈໍາລອງ
ຄວາມສ່ຽງຕໍ່ການຫາປາ
(ເອກະສານອ້າງອີງ 71543) |
Very high vulnerability (78 of 100). |
ປະເພດລາຄາ
(ເອກະສານອ້າງອີງ 80766): |
Unknown. |
