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Henderson Petrel (Pterodroma Atrata) By: Arjun Gampala
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Feeds on fish, squid, and other crustaceans Diet
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Live on Henderson Island in the Pitcairn Islands which is in the Pacific Ocean They also live in the Gambier and Marquesas Islands in French Polynesia Live on the Islands inland or Coral plateau It is food for many creatures and is also a predator for many creatures Dense forests Habitat/Niche
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Can breed at any time in the year Generally lay a single egg May hatch in 50 days Can only breed 1 at a time Parents take 19 day shifts for incubation Reproduction and Gestation
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Polynesian rats and crabs Henderson Petrel Squid, fish, and some crustaceans Small fish Small plant life (algae, coral, etc.) Predator/Prey Relationships
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This species would be a consumer It is a 3 rd level consumer Consumer/Producer
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Humans are not a threat because they live on remote islands but they may if there is an increase in tourists Polynesian rats are a major threat Every year they eat an estimated 25,000 petrel chicks on Henderson Island Threats/Human interactions
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Biotic factors: tall trees (dense forests), vines, grass, sunlight, temperature, and oxygen Abiotic factors: sand, water, and coral rock Biotic/Abiotic factors
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There are about 16,000 breeding pairs 40,000 all together Last survey was 1991 Numbers at Present
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There is an lack of space because they only breed on Henderson Island Limiting factors
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Since they live on Henderson Island surrounded by water, they have learned to catch food in the water They either dive in to catch their prey or wait until another bird vomits their food out to eat it Ability to Adapt/Adaptions
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Many animals like the Polynesian rats and crabs won’t have enough food to survive if they go extinct The food that the petrels eat will overpopulate the area beside Henderson Island eventually leaving no room for the species to survive All of the animals that eat the petrel only live on Henderson island Why my species is a butterfly species
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They are also known as Gadfly petrels They only breed on Henderson Island The beak of the Henderson petrel is sharp and curved, perfectly suited to catching and cutting up its fishy prey Henderson petrel perform their courtship display in the air There size is about 36-37 cm Interesting Facts
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http://www.arkive.org/murphys-petrel/pterodroma-ultima/image-G94955.html http://rainforests.mongabay.com/endangered/charts/birds-albatrosses.html http://www.arkive.org/henderson-petrel/pterodroma-atrata/ http://www.birdwatch.co.uk/channel/newsitem.asp?c=11&cate=__10926 http://strayfeathers.com/2011/07/24/stamp-collectors-can-help-endangered-birds/ http://www.vidiani.com/?p=13912 http://indiesquidkid.com/tag/jewel-squid/ http://eofdreams.com/fish.html http://www.daveharasti.com/nelsonbay/crustaceans/Penaeus_plebejus.jpg http://www.iucnredlist.org/ http://www.telegraph.co.uk/news/picturegalleries/picturesoftheday/8967847/Pictures-of-the-day-20-December- 2011.html?image=15 http://www.wondermondo.com/Countries/Au/Pitcairn/Henderson/HendersonEcosystem.htm http://www.bbc.co.uk/nature/13904188 http://nzbirdsonline.org.nz/species/phoenix-petrel http://www.localist.co.nz/west/articles/green-bays-bird-lady http://birdingwithkennandkim.blogspot.com/2009_02_01_archive.html http://lucy-grewcock.blogspot.com/2010/08/uk-heritage-sites-to-be-blacklisted.html http://w3.shorecrest.org/~Lisa_Peck/MarineBio/syllabus/ch9vertebrates/reptilesandbirds/repbirdwp/ian/birdstatus.html Arkive.com Bird Life.org Pitcairn.southpacific.org http://www.britishbirds.co.uk/articles/important-bird-areas-henderson-island http://w3.shorecrest.org/~Lisa_Peck/MarineBio/syllabus/ch9vertebrates/reptilesandbirds/repbirdwp/ian/birdstatus.html Credits
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