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Indian government to invest in herbs

The Government of India is apparently about to invest Rs 1,000 crore (which i think is Rs 10,000,000,000, something in excess of US$ 250 million, if I’ve got my decimal points right) in herbal medicines over the next five years. The article notes that:

It is a great irony in a country where households pass herbal remedies from one generation to another, and one village to the next, that India accounts for just about 2% of the global herbal drugs market, which is valued at about $63 billion (about Rs2.5 billion). More than 8,000 indigenous medicinal plant species can be found here, but just about 1,000 are commonly traded.

But there’s more. The scheme suggests that collecting medicinal plants will earn poor people more money than cultivating food. Will it earn them enough to buy the food they would have grown? There are plans to train people how best to harvest plants sustainably, and the article talks about a genebank, which sounds more like a database to me.

I have my doubts about the wisdom of massively centralised schemes such as this one, especially when, according to the article, the plan is to convert crop-lands to medicinal plants. Does India really have so much food available that it can afford to divert land from edible crops to medicinal plants, no matter how valuable those plants are? One cannot eat money, or medicinal plants.

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Participatory mapping in Africa

An organization called Udongo — which is new to me, although that signifies nothing — reports on a massive mapping exercise in the Mukogodo forest in Kenya. Four different clans of the Yiaku people (some people call them Yaaku) will work with scientists and others to create “a three dimensional model of part of their ancestral lands, showing the Yiaku conception of natural systems of water, forestry, forest products and wildlife. The map helps to create an inventory of indigenous knowledge, natural resources and the intangible heritage of the region.” Then what? “The Yiakku will explore how the 3 D model will be integrated into the future planning processes of the Yiakku and Mukogodo community.”

If you’re listening, Udongo, let us know how it works out, OK?

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Parasites push promiscuity

Many hermaphrodite plants (and some animals) — including many crops — have what is called a mixed mating reproductive strategy. That means they reproduce by both self- and cross-fertilization, with important consequences for the amount and structure of their genetic variation. The prevalence of mixed mating systems is surprising because inbreeding depression should work to get rid of self-fertilization, resulting in “pure strategies of either outcrossing or selfing.” Now a new study suggests that its natural enemies — pests, parasites, herbivores, etc. — may have a strong effect on the evolution of a plant’s mating systems:

For example, enemies may alter the availability of mates in a population, which may have direct consequences for victim mating system evolution. Enemies may also influence the expression of traits that are important for mating system evolution, thereby improving the evolutionary stability of mixed mating as a reproductive system.

Thus the dynamics of the interactions between a species and the biodiversity that surrounds it can counter the effects of inbreeding depression and lead to the stability of an otherwise doomed evolutionary strategy. I wonder how important this has been in the evolution of agrobiodiversity. After all, concentrating plants in dense near-monocultures like agriculture does is a boon to natural enemies.