Wildlife of the Philippines

The wildlife of the Philippines includes a significant number of endemic plant and animal species. The country's surrounding waters reportedly[1] have the highest level of marine biodiversity in the world. The Philippines is one of the seventeen megadiverse countries and is a global biodiversity hotspot. In 2013, 700 of the country's 52,177 species were listed as threatened.[2]

The Philippine tarsier is endemic to the southern Philippines.

The Philippines has among the highest rates of discovery in the world with sixteen new species of mammals discovered in the last ten years. Because of this, the rate of endemism for the Philippines has risen and likely will continue to rise.[3]

Some of the smallest and largest animals and plants are found in the Philippines. The smallest primate, the tarsier, the biggest moth, the Atlas moth or mariposa in Tagalog, the smallest deer, the Philippine mouse-deer or pilandok, the smallest and biggest fish, whale shark and Philippine goby live in the Philippines.[4]

Birds

The celestial monarch is only found in the Philippines. It is threatened by habitat loss.
The head and shoulders of a large raptor in profile.
A Philippine eagle at Philippine Eagle Center in Davao City.

There are 714 species of birds in the Philippines, of which 243 are endemic, 3 have been introduced by humans, and 52 are rare or accidental. The Philippines has the third-highest number of endemic birds behind the much larger countries of Australia and Indonesia. There are 67 globally threatened species, including the rufous hornbill and the critically endangered national bird of the Philippines, the Philippine eagle or monkey-eating eagle. Until 1995, the national bird of the Philippines was the maya (which, in the Philippines, refers to a variety of small, commonly observed passerine birds). The Philippines is also home to Tawi-Tawi's blue-winged racket-tail, the most endangered parrot species in Southeast Asia, the Sulu hornbill, one of the most endangered animals in the world with a population of just 27. and the Calayan rail, the most endangered species of rail in the world, found only on a small island in the Babuyan Islands.[5]

According to the EDGE of Existence Programme of the Zoological Society of London, the Philippines has the highest bird endemism in the world. Six of the world's 50 most evolutionary distinct and globally endangered (EDGE) species are found in the Philippines. These species are the Philippine eagle (15th place, the highest from the Philippines), spoon-billed sandpiper (#19), black-hooded coucal (#22), Sulu hornbill (#41), Cebu brown-dove (#46), rufous-headed hornbill (#50). Previously, in 2013, when the list was up to 100, the various bleeding heart dove species found only in the Philippines and the Philippine cockatoo were also in the list.[6]

Amphibians and reptiles

There are more than 111 species of amphibians and 270 species of reptiles in the Philippines, 80% of the amphibians are endemic and 70% of the reptiles of the Philippines are also endemic.[7] It is believed that there are not more than 14 of the 114 total species of snakes including flying snakes in the country are venomous. Several species of reptiles and amphibians remains undiscovered. The Philippines also has 50–60 endemic Platymantis frog species, by far the most diverse genus of amphibians in the archipelago.[8]

The endemic freshwater crocodile Crocodylus mindorensis is critically endangered and is considered the most threatened crocodilian in the world. In 1982, wild populations were estimated to be only 500–1,000 individuals; by 1995 a mere 100 crocodiles remained living in the wild. The recent discovery of a population of this species in the Sierra Madre mountains of Luzon brings new hope for its conservation. Projects were being made in an effort to save the crocodiles. The Crocodile Rehabilitation, Observance and Conservation (CROC) Project of the Mabuwaya Foundation is active in carrying out such projects.

Other threatened reptiles include Gray's monitor and the Philippine forest turtle. There are two newly discovered species of frugivorous monitor lizard, the Panay monitor lizard from the island of Panay and Northern Sierra Madre forest monitor from north east Luzon, there are only three species of monitor lizards that are specialized frugivores.

Marine animals

There is great diversity in marine animals in the Philippines' 7,107 islands' seas. Butanding, or whale shark, the largest fish, can be found in the province of Sorsogon. The dwarf pygmy goby or Philippine goby (Pandaca pygmaea), is one of the shortest and lightest freshwater fish in the world with a size of 9-11 mm or the size of a grain of rice. The milkfish or bangus (Chanos chanos), can also be found in oceans and can be cultivated in freshwaters in Hagonoy, Bulacan and other provinces.[9] Yellow-fin tuna, blue marlin, red snapper, swordfish, flying fish, parrot fish, puffer fish, jack, manta ray and pink salmon are also found in the Philippines. The biggest clam, Tridacna gigas, is found in the Philippines. One of the heaviest bony fish in the world, the ocean sunfish (Mola mola), can also be found in the country.

Freshwater fish

The Philippines has about 330 freshwater fish,[10] including nine endemic genera and more than 65 endemic species, many of which are confined to single lakes. An example is Sardinella tawilis, a freshwater sardine found only in Taal Lake. Lake Lanao, in Mindanao, seems to be experiencing the country's most catastrophic extinction event, with nearly all of the lake's endemic fish species now almost certainly extinct, primarily due to the introduction of tilapia, which is an edible fish, for the expansion of the fishing industry. Other exotic species were also introduced to the lake.[3]

Insects and other invertebrates

Troides magellanus, also known as the Magellan birdwing butterfly

About 70 percent of the Philippines' nearly 21,000 recorded insect species are found only in the country. In addition about one-third of the 915 butterflies found here are endemic to the country, and over 110 of the more than 130 species of tiger beetle are found nowhere else. One of the largest butterflies in the world and the largest in the Philippines, the Magellan birdwing can be found here. The largest moth, the Atlas moth, can be found in the Philippines.[3]

Atlas moth

Crustaceans are very diverse in the archipelago. More than 50 species of freshwater crabs (in genera Carpomon, Insulamon, Isolapotamon, Mainitia, Mindoron, Ovitamon, Parathelphusa and Sundathelphusa) are known from the Philippines and all are endemic to the country.[11]

Flora

See also

References

  1. Carpenter, K.E. and V.G. Springer. 2005. Environmental Biology of Fishes (2005) 72: 467–480.
  2. OECD Food and Agricultural Reviews Agricultural Policies in the Philippines. OECD Publishing. April 7, 2017. ISBN 978-92-64-26908-8. Retrieved April 20, 2023.
  3. Conservation International. "Biological diversity in the Philippines". Retrieved March 17, 2015.
  4. Biology for Non-Science Majors. 1983. ISBN 9789712314452.
  5. Allen, Desmond. Birds of the Philippines.
  6. "Species". EDGE of Existence.
  7. Brown M. R.., Siler D.C.. Oliveros H.C.. Esselstyn A.J..Diesmos C. A.. Hosner A. P.. Linkem W. C.. Barley J. A.. Oaks R. J.. Sanguila B. M.. Welton J. L.. Blackburn C. D.. Moyle G. R.. Peterson T. A.. Alcala C. A.. 2013. Evolutionary Processes of Diversification in a Model Island Archipelago (pdf). The Annual Review of Ecology, Evolution, and Systematics. Vol.44. pp.411–35. doi:10.1146/annurev-ecolsys-110411-160323. Retrieved on April 14, 2017
  8. Brown, R. M., Siler, C. D., Richards, S. J., Diesmos, A. C. and Cannatella, D. C. (2015), Multilocus phylogeny and a new classification for Southeast Asian and Melanesian forest frogs (family Ceratobatrachidae). Zool J Linn Soc, 174: 130–168. doi:10.1111/zoj.12232
  9. Medenilla, Vina (May 19, 2022). "A primer on bangus". Manila Bulletin.
  10. Nguyen, T.T.T., and S. S. De Silva (2006). Freshwater finfish biodiversity and conservation: an Asian perspective. Biodiversity & Conservation 15(11): 3543–3568
  11. Mendoza, Jose Christopher E.; Darren C.J. Yeo (2014). "A new species of Isolapotamon Bott, 1968 (Decapoda, Brachyura, Potamidae) from Mindanao, with notes on the Philippine Isolapotamon species". In Yeo, Darren C.J.; Neil Cumberlidge; Sebastian Klaus (eds.). Advances in Freshwater Decapod Systematics and Biology, Crustaceana Monographs. Vol. 19. pp. 135–159. doi:10.1163/9789004207615_009. ISBN 9789004207615.
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