River 河流

Last Updated on Sunday, 17 September, 2023 12:10:28 PM

INDEX > Dragonflies of Borneo > HABITATS OF DRAGONFLIES > River 河流

River 河流


Lower Stream 下游	Mid Stream 中流	Upper Stream 上游
Shallow stream with sands and cobbles, water ran slowly and stagnant passing highly diversified habitats along river. Shrubs and grasses along the stream. Site totally exposed to the sunlight.	Provided varieties of substrates which consist of stones, rocky, cobbles and sandy. Water surface partially covered by canopies of trees and shrubs. Slow and fast flowing water.	Rich of substrates like stone and big rocky. Stream was too small with very fast flowing water, provided open site which is totally exposed to the sunlight, deep and very crystal clear water

The 3 families of dragonflies found in Borneo Island:

1 Family of Aeshnidae

2 Family of Gomphid

3 Family Libellulidae

CHART OF DRAGONFLIES OF BORNEO

Insects of Borneo

Insects are diverse and dominant inhabitants of the tropical rainforests in Borneo Island. New species are discovered too often. Entomologists are still struggling to cope with the documentation of tropical insect diversity.

Red Dragonfly of Sabah

Most of the common dragonflies in Sabah are red coloured, especially from the family Libellulidae. Some red pecies are even confused as same species, for example the three species of Genus Neurothemis.

The compound eyes of dragonflies

Dragonflies and damselflies have large compound eyes that can see in all directions. When the compound eye is magnified several hundred times, each individual facet (ommatidium) is shown to be hexagonal in shape.

Ovipositor (Vulvar Lamina)
of Female Dragonflies and Damselflies

Female dragonflies have either one of the two method of depositing eggs from the abdomen:
1- using Ovipositor Structure
2- using Vulvar Lamina

Male do not have an ovipositor. Instead male dragonfly and damselfly have appendages.

GO FURTHER

FLORA

Fig trees of Sabah

Borneo has 150 species of wild fig trees. Most of them are found in forests of Sabah.

FISHERIES

Tiger Prawn Farms in Tawau

Prawn farming is a main commercial activities in Tawau. Spawners from Tawau are graded the best in Malaysia. For decades, Tawau has been exporting high-grade tiger prawns to several countries such as Korea, Japan, Taiwan, China, Vietnam, Singapore, Egypt and Australia.

Damselflies of Borneo