For millions of years while the rest of the world went through cooling and warming periods, the equatorial rainforests of Malaysia, Borneo and Sumatra have provided a warm and sheltered environment for plant and animal life. This geographic-zoological-botanical region was actually a single land mass during the last ice age when the sea level dropped 100 feet. Because the climate on the equator doesn't change much and the surrounding oceans provide plenty of moisture in the form of rain, the region’s forests have remained consistent over very long periods of time allowing for an unprecedented number of endemic species of plants and animals to evolve.
The highest amounts of rainfall in the world are found in this region, ranging from 2000 mm per year to 3500 mm. Rain generally falls evenly throughout the year with of course certain areas being exceptional and having seasonal variations. These seasonal variations in rainfall along with distinct types of topography, including peat swamps, limestone and granite terrain, have created very distinct vegetation zones. The highest mountain between the Himalayas and New Guinea, Mount Kinabalu at 4,095 meters in Sabah, is one of the most outstanding centers for plant diversity in the world. There is even an alpine zone at the top of this world heritage site.
My desire to travel to Malaysia and Borneo was first inspired by the book The Malay Archipelago written by Alfred Russel Wallace. This groundbreaking volume was first published in 1869 and described in great detail the natural history of the chain of islands that start at (and include) the Malay Peninsula and extend from Sumatra to the west to beyond New Guinea in the east. Wallace divided this Archipelago into five groups of islands. The group that he called the Indo-Malay Island was comprised of the Malay Peninsula and Singapore, Borneo, Sumatra, and Java. The MalaysiaFlora website documents some of the fascinating species of plants, insects and animals that I have come upon during my travels through this region in the countries of Peninsular Malaysia and the Malaysian states of Sarawak and Sabah on the island of Borneo. I have also included some photos from Singapore because of the geographical proximity.
The complex tropical ecosystems found in this equatorial region provide great insight into the study of tropical horticulture and arboriculture. Indeed, experiencing and understanding the native habitat of a particular species of plant (or animal) is a great step toward its successful cultivation and exhibition.