Aves |
Charadriiformes |
Laridae
Environment: milieu / climate zone / تغييرات عمق / distribution range
بوم شناسي
. Tropical; 83°N - 86°S, 180°W - 180°E (مرجع 124582)
Circumglobal. Tropical to polar.
Length at first maturity / Size / Weight / سن
بلوغ: Lm ?  range ? - ? cm Max length : 38.0 cm TL جنس نر / بدون خواص جنسي; (مرجع 8812); بيشينه وزن گزارش شده: 110.00 g (مرجع 356)
Culmen: 3.35 cm; tarsus: 1.69 cm; wing: 27.0 cm.
Total Length: 33 to 38 cm; Wingspan: 79 to 81 cm (Ref. 8812). Coastal (Ref. 356), found in the beach, shoreline, and pelagic zone (Ref. 116102). Displays surface plunging and dipping (Ref. 356). "Erect" and "sky-pointing" display as an appeasement posture during nesting and in pairing. High level of territorial aggression during pre-incubation and hatching periods. European Starlings (Sturnus vulgaris) and Ruddy Turnstones (Arenaria interpres) feed on its eggs. Colonial behavior as an anti-predatory tactic by confusing or intimidating its predator. Ruddy Turnstones (A. interpres) steal fish delivered by parents of young birds in colonial nesting sites. Surface feeder. Moves across the great distance from the polar northern hemisphere to the southern polar region to feed after the breeding season; when feeding, tend to spread out pelagically instead of in groups. 1988 La Niña event linked to fledging failure on Mousa Island off Scotland (Ref. 87784).
Life cycle and mating behavior
بلوغ | تولید مثل | تخم ریزی | Eggs | Fecundity | Larvae
مآخذ اصلی
مراجع | هماهنگ كننده | همكاران
Lepage, D. 2007 Avibase -the World Bird Database. http://www.bsc-eoc.org/avibase/avibase.jsp [accessed 09/07/2007]. (مرجع 7816)
وضعيت در فهرست قرمز IUCN
(مرجع 130435: Version 2025-1)
وضعيت از نظر سايتس (مرجع 108899)
Not Evaluated
خطر برای انسان ها
استفاده انسانی
| FishSource |
ابزارها
اطلاعات بيشتر
Life cycleتولید مثل
بلوغ
Fecundity
تخم ریزی
Eggs
نمو تخم
Larvae
PhysiologyOxygen consumption
Human RelatedStamps, coins, misc.
منابع اينترنتي
Estimates based on models
Preferred temperature
(Ref.
115969): 0.4 - 13.3, mean 6.8 (based on 2468 cells).
جهندگی
زياد, كمينه زمان لازم براي دو برابر شدن جمعيت ، كمتر از 15 ماه (K=67.24-75.43).
Fishing Vulnerability
Low to moderate vulnerability (28 of 100).
طبقه قيمت
Unknown.