Many Angraecoids are normally moth pollinated.
Disa spp., Corycium spp., Ceratandra spp., and Satyrium spp. have a wide range of pollinators from moths, to wasps, to birds, to bees, to flies of all sorts.
Disperis spp. are most likely either fly or wasp pollinated, since they are very tiny orchids.
Some Acrolophia or Eulophia are probably bee or wasp pollinated.
I don't know how big of a role beetles play in the pollination of your native orchids in Kenya, but it is possible they may be pollinators of specific orchids as well.
If you're trying to sow your native terrestrial orchids from seed, I recommend doing a test to see what the chemical composition of the soil is and what type of soil they're growing in is. Not all of the soils will be the same, so be careful not to overgeneralize.
When the seed pods are ripe, it would be in your best interest to sow the seeds in-vitro using a nutrient medium that has a similar chemical composition to that of the soils they came from.
Should the natural pollinators of your orchids not be present in large enough numbers, you can hand pollinate them yourself.
I wouldn't disturb any kind of amphibian population at all, they are in peril due to a variety of reasons. Please don't mess with them in any way.
Some chameleons are only known from small localities in Africa, I would not go around disturbing populations of chameleons as well. Chameleons are not easy to keep, have relatively short lifespans for a lizard, and they stress out very easily. If you want to know about their care, I can provide a few tips provided I know what the species is.
Some orchids do not have obligate pollinators. At times there may be 2 or 3 different species of insects that can pollinate a particular species of orchid. The key is whether the insect can fit into the area where pollination is supposed to occur. The insect has to be the correct size and shape to remove the pollinia and be able to rub the pollinia off itself and into another flower's stigmatic opening/stigmatic surface.
The pollinators tend not to be faithful to the orchids because they eventually learn that many orchids usually do not provide a food reward for visiting the flowers.
---------- Post added at 03:20 PM ---------- Previous post was at 02:47 PM ----------
In regards to slugs and snails, certain snakes may be predators of these animals. I don't know what kind of snakes are in your area other than elapids, but if you guys have slugs and snails, something's eating them, and snakes may be one predator.
Some chameleons eat snails for certain. I know that the Jackson's Chameleon does occasionally pick off snails for food, shell and all.
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Philip
Last edited by King_of_orchid_growing:); 04-06-2014 at 07:09 PM..
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