Gelochelidon nilotica, Gull-billed tern
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Gelochelidon nilotica   Gmelin, 1789

Gull-billed tern
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Classification / Names आम नाम | उपशब्द | CoL | ITIS | WoRMS

Aves | Charadriiformes | Laridae

Environment: milieu / climate zone / गहराई सीमा / distribution range पारिस्थितिकी

; खारा.  Tropical; 56°N - 44°S, 116°W - 173°E (संदर्भ 124582)

Distribution देश | ऐफ ऐ ओ क्षेत्र | Ecosystems | संयोग | भूमिका

Indo-Pacific, Atlantic Ocean and the Mediterranean.

Length at first maturity / आकार / Weight / Age

परिपक्व अवधि: Lm ?  range ? - ? cm Max length : 43.0 cm TL पुल्लिंग / अलिंग; (संदर्भ 8812); अधिकतम प्रकाशित वज़न: 290.00 g (संदर्भ 356)

Short description आकृति विज्ञान

Culmen: 4.1 cm; tarsus: 2.3 cm; wing: 33.0 cm.

जीवविज्ञान     शब्द संग्रह (उदाहरणार्थ epibenthic)

Total Length: 35 to 43 cm; Wingspan: 86 to 103 cm (Ref. 8812). Total population is 55,000 pairs, mostly in Asia, 40,000 pairs. European population of about 6,800 to 160,000 pairs is declining due to loss of habitat (Ref. 84934). Surface seizing; coastal; coastal Islands (Ref. 356). Feeds by dipping to the sea surface with occasional plunge-dives. Breeds colonially in salt marshes, salt works, coastal dunes, islands and freshwater lagoons in southern North America, Caribbean, South America, Europe, Asia, Australia and northern Africa (Ref. 84934). Gull-billed terns are observed to display group adherence. This species has a high nest fidelity in stable habitats, and yet when environmental disasters occur, they retain their mates and settle with the same neighbors at the breeding locality (Ref. 87784).

Life cycle and mating behavior परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | Eggs | Fecundity | Larvae

Main reference संदर्भ | संयोजक | सहयोगीयो

Enticott, J. and D. Tipling 1997 Seabirds of the World: the complete reference. Singapore: New Holland (Publishers) Ltd. 234 p. (संदर्भ 84934)

IUCN Red List Status (संदर्भ 130435: Version 2025-1)

  Least Concern (LC) ; Date assessed: 14 August 2019

CITES status (संदर्भ 108899)

Not Evaluated

CMS (संदर्भ 116361)

Appendix II: Migratory species conserved through agreements

Threat to humans

Human uses


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साधन

E-book | कार्यक्षेत्र पथप्रदर्शक

अधिक जानकारी

Trophic Ecology
Food items (preys)
संघटक आहार
आहार खपत
परभक्षी
पारिस्थितिकी
पारिस्थितिकी
Population dynamics
बाढ़
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
बहुतायत
Life cycle
पुनरुत्पत्ति
परिपक्व अवधि
Fecundity
मछलीऔ का अंडे देना
Eggs
Egg development
Larvae
Distribution
देश
ऐफ ऐ ओ क्षेत्र
Ecosystems
संयोग
भूमिका
Physiology
Oxygen consumption
Human Related
Stamps, coins, misc.
Outreach
सहयोगीयो
Taxonomy
आम नाम
उपशब्द
आकृति विज्ञान
तस्वीरे
संदर्भ
संदर्भ

इंटरनेट स्रोत

BHL | BOLD Systems | CISTI | DiscoverLife | FAO(Publication : search) | Fishipedia | GenBank (genome, nucleotide) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | Tree of Life | Wikipedia (Go, खोज) | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 12.1 - 29.1, mean 27.1 (based on 5421 cells).
Fishing Vulnerability (संदर्भ 71543): Low to moderate vulnerability (33 of 100).
Price category (संदर्भ 80766): Unknown.

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