72 Dolphins Left
There are only 72 freshwater Irrawaddy dolphins left in Myanmar, according to a 2004 census. Similarly small populations also occur in Cambodia and Bangladesh.
Threats to the dolphins in Myanmar include accidental killings by fishers and increased levels of pollution.
Environmental protection of the dolphins has improved with the establishment of protected river areas, said Brian Smith, a WCS expert on the dolphins who is based in Phuket, Thailand.
The country's critically endangered population of river dolphins was unaffected by the cyclone, because most of the animals live far north of the flooded area, he said.
However, there is a population of so-called estuarine Irrawaddy dolphins that inhabits the open waters of the now completely flooded delta.
In the past they have occasionally been seen swimming farther inland, in the waterways of the mangrove forest.
"These animals may have been affected by the storm surge, becoming stranded in low-lying areas, but the majority of the population is likely to inhabit open waters and were probably unaffected by the cyclone," Smith said.
The state of much of the delta remains unknown, because scientists have conducted little work there.
Earlier this year, sightings of 84 spoon-billed sandpipers were reported at two coastal wetland sites in Myanmar.
The sandpipers are extremely rare, with populations having plummeted in the last few years to only 200 to 300 pairs.
The birds breed in Siberia, but scientists had not known where the sandpipers spent their winters.
"It looks like this area [in Myanmar] could be their most important winter habitat but we're not sure what the impact [of the cyclone] will be on the population," said Poole, the WCS Asia director.
Biologists, he added, will have little baseline data on wildlife populations in the delta to determine what the true impact of the cyclone has been.
"We simply don't know what was there before," he said.
Tigers in Peril?
Conservationists warn that the long-term environmental effects of the cyclone could be dire and spread throughout the country.
"My concern would be similar to what we saw in Aceh, Indonesia, after the  tsunami," Poole said.
"People are going to need food, need to rebuild houses, a lot of the rice crops are going to be lost. What impact is that going to have on the environment in the long term."
Rabinowitz, the Panthera president, thinks even the Hukaung Tiger Reserve in the far north of the country, in Kachin State, will eventually feel the effects of the disaster.
"For a country that has long been on the edge, with its forests and wildlife only now starting to get adequate protection in some places, this cyclone was a catastrophe at all levels," he said.
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