Why is Biosystematics important?
 


The Madagascar Perwinkle, Catharantus roseus Linnaeus (Apocynaceae),  contains chemicals which are used to successfully treat childhood leukemia, a form of blood cancer. Many such plants and animals with valuable pharmaceutical properties are still hidden in forests, oceans, and other habitats waiting to be discovered.
 


The four illustrated examples on the left reflect the following points: (A) the Dodo Bird could have survived if humans had the knowledge about its biosystematics. In fact, thank to present knowledge (B) the Madagascar Periwinkle is now highly valued; and (C) the Birdwing Butterflies and Vu Quang Bovine are now protected. Currently, litle is known about life on Earth; approximately 5% of the world's biological resources, or roughly 1.5 million out of an estimated 30 million species, are known to science. Unfortunately, because of our rudimentary knowledge of living things, we continue to waste and deplete the earth’s irreplaceable biological resources at such a rate that about one-half of existing life forms will become extinct within our lifetime. Biosystematics is, therefore, an essential science of the present and future needed for continued discovery of living things.

Biosystematics knowledge of living organisms is essential for programs designed to preserve the integrity and well-being of the life-sustaining systems of the biosphere and to benefit humanity, including:

(A) comprehensive use, management, conservation and protection of the earth's biological diversity and resources;
(B) preservation of the earth's ecosystems and environments;
(C) development of human society in a sustainable manner in order to preserve the vital equilibrium of nature;
(D) discovery and identification of new food sources, genetic resources, environmental bio-indicators, biological control agents, and organisms with medicinal and other beneficial properties.

The Dodo Bird, Raphus cucullatus (Raphidae) became extinct in 1680. The extinction of this bird consequently endangers the existence of another species, the Dodo Tree. In fact, in order to germinate, seeds of this plant must first be cracked by the beak of this bird, and then be abraded and partially digested through the bird digestive tract. Man caused this extinction solely due to ignorance and lack of knowledge, not knowing the vulnerability of this flightless, defenseless bird.

The Tailed Birdwing Butterfly, Ornithoptera paradisea Staudinger, and many other Birdwing Butterflies (Papilionidae), are on the brink of extinction because their natural habitats have severely dwindled due to human encroachment, and due to abusive collecting by greedy, ignorant butterfly traders.
The VuQuang Bovine, Pseudoryx nghetinhensis Vu et al. (Bovidae), from Vietnam was recently discovered and described (1993). The discovery of a mammal of this size astounded the world's scientific community. This mammal is being threatened because its peculiar natural habitat covers only a small area.