Focus on Natural Connections
Known as the cigar orchid (Cyrtopodium punctatum) or cow horn orchid,
this attractive orchid was the victim of over harvesting in past decades.
Larry Richardson, wildlife biologist for Florida Panther National
Wildlife Refuge, explains, "Cigar orchids were typically shipped north
for people to have as extraordinary centerpieces at highbrow gatherings.
Once the orchid stopped blooming, they threw the whole orchid plant
away. Unfortunately, people threw more fancy parties than any wild
orchid population could sustain."
Although
that issue has been corrected, other challenges face the cigar orchid.
In fact, if not for people like Richardson, these orchids would not
be reproducing at all outside Naples. "It's the pollinators. They're
gone out here," laments Richardson who for years has had to use forceps
to transfer pollen from one orchid to the next to keep them going.
"There are two species of ground nesting bees that pollinate these
orchids. No bees, no orchids. The bees are still in Naples, but they
have very specific needs relating to ground water - needs that are
not being met out here because of the draining of the Everglades."
This issue is a recurring theme for Richardson. "Any plant or animal
becomes endangered by the loss of one of its critical needs like food,
water, and cover. So orchids are just like Florida panthers in this
respect. Take away one critical element and it all cascades down."
And water provides the perfect example. In addition to decimating
the pollinators for cigar orchids, the lower water levels of the Everglades
decreased the humidity that many orchids need to flourish. Lower water
also removed the protective buffer zone from fires. And it also decreased
the frost protection since water would absorb the heat from sunlight
during the day and slowly release it throughout the night.
Focus on Pollinators
Besides being a target for poaching, the famous ghost orchid like
other orchids
relies
on pollinators. Although not certain, the pollinator for the ghost
orchid is believed to be the giant sphinx moth. It has a very long
proboscis or tongue. With its five to six inch long proboscis, it
is capable of reaching into the long nectar tube of the ghost orchid.
When the moth gets nectar, it also exchanges genetic material from
the other ghost orchids it has visited. Current knowledge indicates
that the ghost orchid cannot be self-pollinated and must be cross-pollinated
in order to produce seeds. So, potentially, as the sphinx moth goes,
so goes the ghost orchid.
But orchids are just one small portion of the pollinated community.
According to NORP president Lee Hoffman, "One of every three bites
of food we eat and almost every thing we drink is dependent on pollinators.
Our research so far has led us to believe one of the major causes
of the orchid depletion is because of the loss of pollinators. Our
project hopes to work on bringing back the pollinators which will
help other species of plants including our food crops."
Focus on Fungus
The role of mycorrhizal fungus in Florida's native orchids is not
yet fully understood but appears to be absolutely critical. For example,
the vanilla orchid from the tropical Americas and many other orchids
cannot establish themselves at all without the aid of its fungal partner.
In addition, studies of other orchid populations indicate the fungus
may also assist in drought and disease resistance, reduction of pest
damage, and increasing general plant health. These same orchids can
be raised in the lab without the fungus in special conditions, but
in the wild they are dependent upon fungus. Jay O'Neill, a biologist
at the Smithsonian Environmental Research Center, is already researching
which fungus is appropriate and necessary for the propagation of each
orchid species for NORP.
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Orchid Restoration Project main page