the philippine envi
DESCRIPTION
For all SSC-W students!TRANSCRIPT
The Philippine Environment Amidst Climate Change
PHILIPPINE BIODIVERSITY
Biodiversity refers to the totality of life forms in the areas they occupy
ImportancImportance of e of
BiodiversitBiodiversityy
ImportancImportance of e of
BiodiversitBiodiversityyHeaney and Regalado
IMPORTANCE OF BIODIVERSITYFood
FISH comprises 10% of protein intake globally and 50-60% that of Filipinos.
Food for all living organisms not just for man!
> 90% calorie intake globally comes from 80 PLANT SPECIES
IMPORTANCE OF BIODIVERSITYMedicines
•80% of the world’s population use plants as 1° source of medicine
•30% of all pharma medicines are developed from plants and animals
Fuel, timber, fiber and other resourcesMost houses, furniture and even
many clothes are made from natural products, including wood, oils, resins, waxes, gums and fibers.The cocoons of silk worms are the basis of the valuable, centuries-old Asian silk-making industry.
IMPORTANCE OF BIODIVERSITY
Air and water purification
IMPORTANCE OF BIODIVERSITY
Drought, erosion and flood control
IMPORTANCE OF BIODIVERSITY
Social / cultural value
IMPORTANCE OF BIODIVERSITY
Biodiversity is directly linked with traditional, spiritual and cultural values of people.
Economic value
IMPORTANCE OF BIODIVERSITY
National National Pride: Pride:
Philippine Philippine BiodiversitBiodiversit
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82 species are FOUND ONLY 82 species are FOUND ONLY
in the Philippinesin the Philippines
105 species of 105 species of AMPHIBIANSAMPHIBIANS
More than 254 More than 254 species of species of ReptilesReptiles
More than 254 More than 254 species of species of ReptilesReptiles
…with 208 species endemic to the Philippines
BIRDSA total of 576 species of A total of 576 species of
birdsbirds
196 of these occur only in 196 of these occur only in the Philippinesthe Philippines
Of the 179 species of land Of the 179 species of land mammals,mammals,111 species are found only in the PhilippinesHeaney and Regalado
Around 20,940 species of insects
69.8% are endemics
estimated 15,000 species, 50% are endemics
70 – 80% Flowering plants
193 Threatened species
211 Lakes, 18 major rivers,
22 marshes, swamps and reservoir
INLAND WATERSINLAND WATERS
PHILIPPINE WETLANDS1616 species of aquatic plants
3675 species of fauna
MANGROVES
Around 60 mangrove plant species in the world
54 mangroves and related species occur in
the Philippines
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Corals462 coral species recorded (Werner and Allen, 2000) Highest in the world !!!
•Eastern Papua New Guinea with 380 species;
•Ryukyu / Yaeyama Islands with 370
•Great Barrier Reef, Australia with 350
FISH
Philippine Total = 2,459/4,000 species in the Indo-Pacific region
(Fish Base 2000)
82 (possibly 98) species are Philippine Endemics
2,241 marine species (2/3 coral reef-associated)
209 freshwater species
MolluscsMolluscs22,000 freshwater, land and marine 22,000 freshwater, land and marine
speciesspecies
photos by Evette Lee
Seven occur in
Philippine waters
Nine species of
Giant Clams worldwide
COUNTRYTotal
species
Endemic
Species
% Endemi
c
Land Area (km2)
Philippines
1139 558 50% 300,780
Spain 435 25 6% 451,171
Brazil 3131 788 25% 8,511,965
Source: Heaney, 2002
Biodiversity and Endemism
Some Notable Flora and Fauna Species in Philippines•Philippine Eagle-
world’s largest eagle
•King cobra largest - terrestrial venomous snake
•Reticulated python - largest / longest snake
•Phil. Iron Wood/magkuno - hardest wood
Some Notable Flora and Fauna Species in PhilippinesOne of the smallest deerMouse deer1 of the Smallest primitive primatesSlow loris & Tarsier
One of the Largest flowersRafflesia speciousaWorld’s 2 largest batsGolden-crowned Flying Fox & Large Flying FoxWorld’s largest ratCloud rat
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Some Notable Flora and Fauna Species in Philippines
Giant Clam – world’s largest giant clam species
Boring Clam – smallest giant clam species
Porcelain Clam – rarest giant clam species
Sperm whale – largest toothed cetacean
Killer whale – largest dolphin species
Minke Whale – smallest of all baleen whales
Dugong – only herbivorous marine mammal in the Philippines
•Whale Shark – world’s largest fish
•Giant Manta Ray – world’s largest ray
•Saltwater crocodile – world’s largest living reptile
•Leatherback turtle – largest of all sea turtles
Photo by Evette Lee
•Dwarf Pygmy Goby - smallest freshwater fish
•Sinarapan / Bia / Tabios - smallest food fish
Some Notable Flora and Fauna Species in Philippines
One of the World’s Richest in Mineral Resources
• 2nd to Indonesia in geological prospectivity in SouthEast Asia
• 2nd to South Africa in Gold production
• 3rd in copper production
• 3rd in Gold, 4th in Copper deposits
• 5th in Nickel deposits
• 6th in Chromite in nickel deposits
Why is Why is Philippine Philippine
BiodiversityBiodiversity
so rich?so rich?Heaney and Regalado
SE Asia SE Asia ReconstructionsReconstructions
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Present configuration
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DisappearDisappearing ing
BiodiversiBiodiversityty
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Composition and current characteristics of biodiversity in the Philippine Marine
environment (source: DENR, 1997)
Taxon NumberEconomically
ImportantThreatene
d
Marine Fungi 7
Sea Grasses 16 3
Algae 1,062 531 60
Corals1 381
Other Invertebrates
1,616 152 47
Fish2 1,831 672
Mammals3 18 18 18
Reptiles 20 20 20
Total*Total* 4,9514,951 1,3961,396 1451451 Total number of corals found in the Phil. now stands at 462 (Werner and Allen, 2000)2 Total number of fish now is estimated to be over 2,000 species.3 Total number of marine mammals in Philippine waters is now at 23.* Estimated number of species in the Philippine marine environment is over 5,000
Status of Philippine Mangroves
! loss is largely due to fishpond conversion of mangroves
! reclamation for residential, commercial & industrial purposes and excessive harvesting of trees for fuel
1918 450,000 hectares (Brown and Fisher, 1920)
19971997 only 112,400 hectares (24.97%) only 112,400 hectares (24.97%) remains!!! remains!!! (Phil. Forestry Statistics, 1998)
Total number of wildlife species in the Philippines
Major Taxa No. of Species
Endemic Species
ThreatenedSpecies
Amphibians 101+ 82+ (78%)
24
Reptiles 258+ 170+ (66%) 8
Birds 576+* 195+ (34%) 74
Mammals 204+** 111+ (54%) 51
Total 1139+ 558+ 50%) 157
1875 1949 1970 1987 1992
Forest loss in Negros
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Source: Environmental Science for Social Change, 1999
Extent of Forest Cover Loss in the last 100 years
Less than 6% of the country’s original forest remains!
YEAR 2002
18% forest cover
< 3% original forest remains!!!
0
50,000
100,000
150,000
200,000
250,000
300,000
1400 1500 1600 1700 1800 1900 1990
YEAR Extent of Original Forest Cover in the Philippines
Km2 FOREST COVER
Spanish colonization (270,000 km2)
American colonization (210,000 km2)
Philippine Independence 1950’s (150,000 km2)
Post EDSA Revolution (8,000 km2)
Land area (300,000 km2)
(400 years)
(100 years)
(50 years)
(40 years)
The Physical Environment
Country’s productivity
* "Declining" productivity of the country's agricultural lands and fisheries.
• .
• These areas become increasingly degraded and pushed beyond their capacity to produce
• Cause: Rapid forest loss has eliminated habitat for unique and threatened plant and animal species; it has also left large tracts of land in the Philippines vulnerable to soil erosion
*The loss of nutrient rich soil reduces crop yields and contributes to the expanded use of chemical fertilizers - a practice that can, in turn, pollute water sources.
• Rivers and streams also carry eroded soil to the coasts, where it interferes with fish nursery areas.
• * Soil runoff into fish breeding and nursery areas is one of several factors leading to the overall decline in productivity of fisheries in the Philippines
Consequences Food insecurity. The lack of a stable and reliable
food supply contributes to poor nutritional status for many Filipinos, especially for children: Approximately 28 percent of children under 5 are underweight (DOH Report, 2006)
Food insecurity also contributes to increases in environmentally destructive practices such as slash-and-burn agriculture ("kaingin" farming) or the use of dynamite to increase short-term fish catches.
. * In 1970, 32 percent of the country's population lived in urban areas. * Today, 48 percent is crowded into cities, where housing and infrastructure struggle to keep pace with the growing numbers.
• Overcrowding and insufficient housing can be particularly detrimental to children: Studies have suggested that infant mortality rates in Manila's slums are three times higher than in non-slum areas
Water crisis is not far behind: Access to clean and adequate water is an acute seasonal problem in Metro Manila, Central Luzon, Southern Tagalog, and Central Visayas.
Government monitoring data showed that up to 58 percent of the country's water ground is contaminated with coliform bacteria, causing such diseases as diarrhea, cholera, dysentery, and hepatitis A.
studies show that there is a steady 30-50% drop in the levels of the country’s water sources for the past 20 years or an average drop of 1 meter/year
While on the average, the atmosphere’s moisture is renewed every 8 days, stream water every 16 days, soil moisture annually, swamp water in 5 years, lake water in 17 years, groundwater renews only after 1,400 years.
Threats to Threats to Philippine Philippine biodiversitbiodiversit
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Picture soure: Internet
Industrial Pollution
(Sources of Water… continuation)
Aquaculture
Mobile Pollution
(Sources of Air… continuation)
Domestic Pollution
DIRECT
• Deforestation due to unsustainable logging, farming and related
practices • Aquatic destruction due to
unsustainable fishing and deforestation
• Conflicting and poor policies• Poor law enforcement• Pollution• Natural extinction
INDIRECT•Poverty
from 47% Erap regime to 65% now (2 out of 3 feel extreme hunger)
•Overpopulation 87.6 Million (August 1,
2007)
•Corruption
•Lack of knowledge/Miseducation
•Apathy (Tragedy of the Common)
Laws of Ecology
Nature’s Law of InterrelatednessNature’s Law of Interrelatedness
All things are All things are interconnectedinterconnected
Law of Conservation of Matter
Everything Must Go somewhere!
Nature Knows Best
“In the end, we will conserve only what we love, we will love only what we understand, and we will understand only what we are taught.”
-Baba Dioum, a Senegalese conservationist