Ecology

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Species Most Often Observed near Pterodroma hasitata

EcoChart

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This pie chart shows the relative likelihood of observing particular other species commonly observed near Pterodroma hasitata

Top Species

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These species are those which most commonly occur in our observation database near Pterodroma hasitata. Observations favor some phyla over others. Typically Bacteria, Fungi, Protozoa, and Arthropods are more common in the field than in our records.

Top Birds

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Top Mammals

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Top Amphibians

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Top Fish

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Top Arthropods

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Top Plants

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Top Other

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Characteristics of Habitat

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Aquatic Regions:

Atlantic-northwestAtlantic-western central

Range and Population:

Pterodroma hasitata now breeds in Haiti and the Dominican Republic. There are an estimated 1,000 breeding pairs3,4, mostly in the Massifs de la Selle and de la Hotte, southern Haiti6, but records at-sea suggest that the population is over 5,000 individuals9. The area of suitable habitat in the Pic Macaya region of Massif de la Hotte is estimated to be 5 km2, with a similar area in La Visite, Massif de la Selle (the majority of colonies are found within a 10 km stretch spanning a 500 m elevational range on the north side of the ridge; two more colonies are located further to the east, span 5 km, again within a 500 m elevation range)10. Small numbers have been recently recorded on Dominica and in adjacent offshore waters, suggesting that it may still nest6. It now seems likely that small numbers breed in Cuba based on observation in the Sierra Maestra region (a congregation of 40+ individuals in the vicinity of shoreline, vocalisations heard overhead by landbased observers, and evidence of birds moving inland)11. It is believed extinct on Guadeloupe (to France) (where common in the 19th century)6. Black-capped petrel may have bred on Martinique (to France)6. Even during the breeding season it is highly pelagic, with breeding condition birds recorded off the North Carolina coast, USA3,4. Birds disperse over the Caribbean and Atlantic from the north-east USA to north-east Brazil, with four records in European waters8, but the at-sea range has contracted in the north and west.[1]
Countries:Native:
Bahamas; Dominican Republic; Haiti; United States


Vagrant:
Aruba; Cayman Islands; Colombia; Costa Rica; Jamaica; Netherlands Antilles; Puerto Rico; United Kingdom; Virgin Islands, British; Virgin Islands, U.S.


Regionally extinct (uncertain origin):
Guadeloupe; Martinique


Uncertain presence and origin:
Cuba; Dominica

[1][1]

Biome:

Terrestrial; Marine

Ecology Notes:

It nests (starting in December) colonially in cliff burrows, often within montane forest at 1,500-2,000 m, but up to 2,300 m in the Dominican Republic7. Nesting birds commute large distances from breeding to foraging sites3. It is primarily nocturnal and crepuscular, feeding on fish, invertebrate swarms, fauna associated with Sargassum seaweed reefs3, and squid5. It is attracted to localised upwellings, where the mixing of surface and deep oceanic waters produces nutrient-rich areas3.[1]


List of Habitats:1.9Forest - Subtropical/Tropical Moist Montane 10.1Marine Oceanic - Epipelagic (0-200m)

In sections below, we make some habitat inferences based on the known habitat preferences of those species most commonly associated with Pterodroma hasitata.

Zone:

alpine, montane, subtropics, temperate, tropics.

Vegetation:

boreal forest, boreal shrubland, coniferous forests, cultivated areas, deciduous woods and forests, desert, disturbed sites, fence rows, fields, forest edges, forests, gardens, grasslands, hammocks, hardwood forests, mature forests, meadows, mediterranean-type shrubby vegetation, moist woods, montane forests, open forests, pasture, pine forests, rain forest, shrubby vegetation, small trees, thickets, tropical forest, tundra grassland.

Terrain:

flood plains, hillsides, pastureland, roadsides, rock outcrops, rocky soils, streamsides, urban areas, valleys.

Soil and Rock:

clay, limestone, loam, marl, sandy areas, sandy soil, shaly areas, siliceous cliffs, thin soil.

Water in Area:

along rivers, bays, bogs, brackish water, coral reef, ditches, dry areas, estuaries, flood plains, lagoon, lakes, marshes, moist woodlands, pelagic, ponds, rivers, saltwater, seamount, shores, stream banks, streams, subtidal muddy, swamps, swampy areas, wet woods.

Slopes in Area:

hillsides, ravines.

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Footnotes

  1. Birdlife International 2007. In IUCN 2008. 2008 IUCN Red List of Threatened Species. IUCNRedList.org. Downloaded July 18, 2008. [back]