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The islands were proclaimed as a Critical Habitat by the Philippine government through Presidential Proclamation No. 1412 on April 22, 2007. [6] It covered 175 hectares (430 acres) covering the two interconnected islands where important bird habitats such as mangroves, beach forests, lagoons, and mudflats are found. [ 7 ]
Insular biogeography [1] or island biogeography is a field within biogeography that examines the factors that affect the species richness and diversification of isolated natural communities. The theory was originally developed to explain the pattern of the species–area relationship occurring in oceanic islands.
Oceanic islands arise due to volcanic activity or reef growth, and usually subside over time due to erosion and changing sea levels. [1] When islands emerge, they undergo the process of ecological succession as species colonize the island (see theory of island biogeography). New species cannot immigrate via land, and instead must arrive via air ...
The Insular Government of the Philippine Islands [6] (Spanish: Gobierno Insular de las Islas Filipinas [7]) was an unincorporated territory of the United States that was established on April 11, 1899 upon ratification of the 1898 Treaty of Paris. [8] It was reorganized in 1935 in preparation for later independence.
The Philippines was never connected to mainland Asia via land bridges, [dubious – discuss] so the flora and fauna of the islands had to cross ocean straits to reach the Philippines. The Philippines is part of the Indomalayan realm , and its flora and fauna is mostly derived from tropical Asia.
Pulo Island, commonly known as Isla Pulo, is a long, narrow island surrounded by mudflats in the Manila Bay coast of Navotas, about 13 kilometers (8.1 mi) north of Manila in the Philippines. It is a sitio in Barangay Tanza , connected to the mainland of Navotas by a 500-meter-long (1,600 ft) bamboo bridge. [ 1 ]
The Samar Island Natural Park, in Samar, is the largest contiguous tract of old-growth forest in the Philippines. It is the country's largest terrestrial protected area , with an area of 333,300 hectares (824,000 acres).
The Philippines is an archipelago that comprises 7,641 islands, [8] and with a total land area of 300,000 square kilometers (115,831 sq mi), it is the world's fifth largest island country. [ 2 ] [ 3 ] [ 9 ] The eleven largest islands contain 95% of the total land area.