The poison attack on lions in Kenya’s Masai
Mara National Reserve has claimed a third victim: Alan, a young male
lion in the famous Marsh Pride.
Saturday’s attack
had already claimed the lives of two lions. The lioness Bibi and
another, who was mauled by hyenas beyond recognition but is likely the
lioness Siena, both died on Sunday. Six members of the Marsh Pride,
which was featured in the BBC documentary Big Cat Diaries from 1996 to
2008, were also sickened.
Alan was the worst-off among them but was reportedly improving. But
later he separated from the rest of the pride and was too weak to avoid
being trampled by a herd of buffalo. He suffered a chest wound and other
injuries, according
to Simon Thomsett, who examined him. A hyena came to finish him off,
but he mustered the energy to crawl beneath a car. Still, his injuries
were too severe, and he had to be euthanized on Wednesday.
The poisoning occurred Saturday night, when several Maasai herdsman
allegedly planted the body of a dead cow laced with poison in response
to an earlier lion attack on their herds.
Human-lion conflict in the Masai Mara region of southwest Kenya has
been on the rise as land subdivisions and privatization reduce grazing
land for cattle. At night, some Masai are known to allow their cattle
into Masai Mara National Reserve, where the grazing is better—and
illegal.
I’m madder than a spitfire, and my heart is just absolutely aching.
“It has become the norm for tens of thousands of cattle to come into
the reserve at night, where in the old days this only happened under
conditions of extreme drought,” said Jonathan Scott, an English
zoologist who coauthored a book about the Marsh Pride.On Tuesday, Simindei Naururi and Kulangash Toposat were arraigned in Narok, Kenya, according to the BBC. A third person is being held as a material witness for the prosecution, according to a press release from the Kenya Wildlife Service, and a fourth suspect is sought, the Associated Press reported.
Anne Kent Taylor, a conservationist at the Masai Mara reserve and a National Geographic Big Cats Initiative grantee, was distressed at the news. “I’m madder than a spitfire, and my heart is just absolutely aching,” she said.
It appears that eight lions have been poisoned, but the effects go beyond them. So far, 11 vultures
have been confirmed dead, likely from feeding on the carcasses of the
dead lions. There are no reports so far of sick hyenas, which have also
scavenged one of the lions, but they may be affected too.
Lions in the region have been under immense pressure, Scott said. Not
only are human-lion conflicts on the rise as the cattle encroach on
their territory, but cattle illegally grazing on the reserve have
diminished plant life, which in turn has driven away herbivores. Fewer
herbivores means fewer meals and more difficult hunts for the lions.
The poisoning first came to light when a BBC film crew noticed the
lions behaving strangely, spasming and struggling to stand. They called
Patrick Reynolds, the manager of the nearby Governors’ Camp. Reynolds
immediately contacted the mobile veterinary unit
funded by the David Sheldrick Wildlife Trust. Guides from the
Governors’ Camp stood watch during the night to make sure hyenas
wouldn’t attack the weakened lions, and the veterinarian, Dr. Limo,
arrived in the morning.
According to Reynolds, the young lion Alan was treated with the
anti-inflammatory drug dexamethasone and atropine, which is an antidote
for pesticide poisoning. It was likely a pesticide in the highly toxic
carbamate. Carbamates such as carbofuran, which is banned in the European Union and effectively banned in the United States, have often been used to poison wildlife.
These pesticides work by blocking an enzyme called
acetylcholinesterase, which breaks down a neurotransmitter called
acetylcholine. Acetylcholine to builds up, causing the nervous system to
overexcite, which can cause death.
Lion numbers in Africa have decreased by about 50 percent since 2003, and a recent study found their numbers are likely to fall again by half in the next 20 years without major conservation efforts. There may be as few as 20,000 left, according to National Geographic’s Big Cat Initiative.
Part of that decline has been attributed to intentional pesticide poisonings.
This story was produced by National Geographic’s Special
Investigations Unit, which focuses on wildlife crime and is made
possible by grants from the BAND Foundation and the Woodtiger Fund.
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