Komodo Flora Fauna


PHYSICAL ENVIRONMENT: Topography: The topography is varied, with slopes from 0 – 80%. There is little flat ground, and that is generally located near the beach. The altitude varies from sea level to 735 m above sea level. The highest peak is Gunung Satalibo on Komodo Island.
Geology: The islands in Komodo National Park are volcanic in origin. The area is at the juncture of two continental plates: Sahul and Sunda. The friction of these two plates has led to large volcanic eruptions and caused the up-thrusting of coral reefs. Although there are no active volcanoes in the park, tremors from Gili Banta (last eruption 1957) and Gunung Sangeang Api (last eruption 1996) are common. West Komodo probably formed during the Jurasic era approximately 130 million years ago. East Komodo, Rinca, and Padar probably formed approximately 49 million years ago during the Eocene era.
Climate: Komodo National Park has little or no rainfall for approximately 8 months of the year, and is strongly impacted by monsoonal rains. High humidity levels year round are only found in the quasi-cloud forests on mountain tops and ridges. Temperatures generally range from 170C to 340C, with an average humidity level of 36%. From November through March the wind is from the west and causes large waves that hit the entire length of Komodo island’s west beach. From April through October the wind is dry and large waves hit the south beaches of Rinca and Komodo islands.

The terrestrial ecosystems are strongly affected by the climate: a lengthy dry season with high temperatures and low rainfall, and seasonal monsoon rains. The Park is situated in a transition zone between Australian and Asian flora and fauna. Terrestrial ecosystems include open grass-woodland savanna, tropical deciduous (monsoon) forest, and quasi cloud forest.
Due to the dry climate, terrestrial plant species richness is relatively low. The majority of terrestrial species are xerophytic and have specific adaptations to help them obtain and retain water. Past fires have selected for species that are fire-adapted, such as some grass species and shrubs. Terrestrial plants found in Komodo National Park include grasses, shrubs, orchids, and trees. Important food tree species for the local fauna include Jatropha curkas, Zizyphus sp., Opuntia sp., Tamarindus indicus, Borassus flabellifer, Sterculia foetida, Ficus sp., Cicus sp., ‘Kedongdong hutan’ (Saruga floribunda), and ‘Kesambi’ (Schleichera oleosa).

The terrestrial fauna is of rather poor diversity in comparison to the marine fauna. The number of terrestrial animal species found in the Park is not high, but the area is important from a conservation perspective as some species are endemic.. Many of the mammals are Asiatic in origin (e.g., deer, pig, macaques, civet). Several of the reptiles and birds are Australian in origin. These include the orange-footed scrubfowl, the lesser sulpher-crested cockatoo and the nosy friarbird.
Reptiles: The most famous of Komodo National Park’s reptiles is the Komodo Dragon (Varanus komodoensis). It is among the world’s largest reptiles and can reach 3 meters or more in length and weigh over 70kg. To find out more about this fascinating creature click here.
Other than the Komodo Dragon twelve terrestrial snake species are found on the island. including the cobra (Naja naja sputatrix), Russel’s pit viper (Vipera russeli), and the green tree vipers (Trimeresurus albolabris). Lizards include 9 skink species (Scinidae), geckos (Gekkonidae), limbless lizards (Dibamidae), and, of course, the monitor lizards (Varanidae). Frogs include the Asian Bullfrog (Kaloula baleata), Oreophyne jeffersoniana and Oreophyne darewskyi. They are typically found at higher, moister altitudes.
Mammals: Mammals include the Timor deer ( Cervus timorensis ), the main prey of the Komodo dragon, horses (Equus sp), water buffalo (Bubalus bubalis), wild boar (Sus scrofa vittatus), long-tailed macaques ( Macaca fascicularis ), palm civets ( Paradoxurus hermaphroditus lehmanni), the endemic Rinca rat ( Rattus rintjanus ), and fruit bats. One can also find goats, dogs and domestic cats.
Birds: One of the main bird species is the orange-footed scrub fowl ( Megapodius reinwardti ), a ground dwelling bird. In areas of savanna, 27 species were observed. Geopelia striata and Streptopelia chinensis were the most common species. In mixed deciduous habitat, 28 bird species were observed, and Philemon buceroides, Ducula aenea, and Zosterops chloris were the most common.

The three major coastal marine plants are algae, seagrasses and mangrove trees. Algae are primitive plants, which do not have true roots, leaves or stems. An important reef-building algae is the red coralline algae, which actually secretes a hard limestone skeleton that can encrust and cement dead coral together. Seagrasses are modern plants that produce flowers, fruits and seeds for reproduction. As their name suggests, they generally look like large blades of grass growing underwater in sand near the shore. Thallasia sp. and Zastera spp. are the common species found in the Park. Mangroves trees can live in salty soil or water, and are found throughout the Park. An assessment of mangrove resources identified at least 19 species of true mangroves and several more species of mangrove associates within the Park’s borders.
Komodo National Park includes one of the world’s richest marine environments. It consists of forams, cnidaria (includes over 260 species of reef building coral), sponges (70 species), ascidians, marine worms, mollusks, echinoderms, crustaceans, cartilaginous and bony fishes (over 1,000 species), marine reptiles, and marine mammals (dolphins, whales, and dugongs). Some notable species with high commercial value include sea cucumbers (Holothuria), Napoleon wrasse (Cheilinus undulatus), and groupers