Phoebastria immutabilis, Laysan albatross

Phoebastria immutabilis   (Rothschild, 1893)

Laysan albatross
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Phoebastria immutabilis

Classification / Names आम नाम | उपशब्द | CoL | ITIS | WoRMS

Aves | Procellariiformes | Diomedeidae

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

.  Tropical

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

Pacific Ocean and Western Central Atlantic.

Length at first maturity / आकार / Weight / Age

परिपक्व अवधि: Lm ?  range ? - ? cm Max length : 81.0 cm TL पुल्लिंग / अलिंग; (संदर्भ 8812); अधिकतम प्रकाशित वज़न: 2.9 kg (संदर्भ 356)

Short description आकृति विज्ञान

Wing: 20.3 cm.

जीवविज्ञान     शब्द संग्रह (उदाहरणार्थ epibenthic)

Total Length: 79 to 89 cm (Ref. 8812). Total annual breeding population of some 362,000 pairs representing about 1,200,000 to 1,400,000 birds (Ref. 84934). Occurs over open ocean (Refs. 356, 122680). Mainly feeds at night and often far from breeding colony. Forages with conspecifics, but rarely with other species. Seizes prey from the surface while sitting on the water. Scavenges on carrion and follows fishing boats. Diet consists mainly of squid as well as deep-water crustaceans, fish and flyingfish eggs (Ref. 122680).

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

Breeding birds arrive at the islands in the first week of November, egg laying starts late November to early December. Eggs start to hatch in late January to early February, and by the second week of August all birds have fled the island (Ref. 96995).

Main reference संदर्भ | संयोजक | सहयोगीयो

Lepage, D. 2007 Avibase -the World Bird Database. http://www.bsc-eoc.org/avibase/avibase.jsp [accessed 09/07/2007]. (संदर्भ 7816)

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

  Near Threatened (NT) (A4bd); Date assessed: 07 August 2018

CITES status (संदर्भ 108899)

Not Evaluated

CMS (संदर्भ 116361)


Threat to humans

Human uses


| FishSource |

साधन

अधिक जानकारी

Trophic Ecology
Food items (preys)
संघटक आहार
आहार खपत
परभक्षी
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
Physiology
Oxygen consumption

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

लौटाव (Ref. 69278): ऊंचा, न्यूनतम जनसंख्या दुगनी समय अवलागत 15 महीने। (K=3.4-9.56).
Fishing Vulnerability (संदर्भ 71543): Moderate to high vulnerability (52 of 100).
Price category (संदर्भ 80766): Unknown.