Rat poison: time to think again

Just as the use of insecticides does not solve a mosquito problem, vermin are not controlled by repeated use of poisons.

Rat poison lodged in letter-box. Rat poison lodged in letter-box. Photo: Vivian Grisogono

For many years, rat poison has been delivered to households all over the island in totally inadequate cellophane bags. To make matters worse, the instructions are inside, so the poison has to be handled if you want to read them. Foreign residents who do not know Croatian are at a disadvantage. One thought that the white tablet which comes with the red warfarin mixture was the antidote. Luckily, they had no occasion to try it, as the tablet is a separate poison meant for septic tanks, and has no antidote. The antidote to the warfarin is vitamin K. Warnings that the poison is about to be delivered are patchy and haphazard. While the official Stari Grad website always carries advance notice, that has not been the case elsewhere. In Pitve it was usually a small notice taped to the rubbish bin a day or two beforehand. However, during 2016 there has been an improvement in Jelsa, with warnings being given on the Council's website as well as on the Town Hall notice board.

Warning of the impending poison delivery on the rubbish bin. Photo: Vivian Grisogono

By law, vitamins have to be packaged securely, but it seems that rat poison does not. EU membership has not changed this irresponsible and dangerous custom. The bags are left apparently randomly around the villages. I have found them variously on a window sill, dangling from my post-box, even on top of my car! Delivery is clearly irresponsible. Are the poisons used in a more responsible manner? All too often, they are simply placed in heaps around a property, even where they may be a hazard to pets or young children. The safest way to put down such poisons - if you feel you must - is to use a rigid tube with access holes at either end large enough for mice or rats, but too small for other animals.

Packaged rat poison as delivered to local households. Photo: Vivian Grisogono

While vermin within buildings present a problem and possible health hazard, the same is not true of mice and rats in the wild, which have their place, not least in the natural food chain. For an insight into their lifestyles, see the video below, or click here.

Given regular doses of poison, rats become resistant, so poison is not the solution. On the other hand, although the poison is not supposed to attract other animals, it does, and cats and dogs have died through eating it. The more's the pity, as cats keep rats, mice and even snakes under control. For any major rat infestation, the best methods for avoiding the problem of resistance are to let tenacious dogs like Jack Russell terriers hunt them, or to use traps.

Rat poison delivered to a car roof. Photo: Vivian Grisogono

The local councils must spend quite a significant sum of money on distributing these poisons. Looking at the 2015 financial report from Jelsa Council, I was unable to identify exactly how much was spent on the campaigns against vermin and insects, as these items were not identified individually. Is this money being spent wisely? I think not.

In the United Kingdom, poisons against vermin are available, but are not generally distributed by local councils. They were (and maybe still are) distributed on request. Some sixty years ago, when we lived not far from London, my brother, sister and I came home from school to find an unmarked jam jar on the kitchen table. Ever adventurous, my sister delved in. “Cheesy“, she purred, and continued to satisfy her hunger. There was no fridge full of food in those days, indeed no fridge, and the larder was empty. However, Brother and I were more cautious, and refused her kind offer to share. Our mother's horror when she came home from work sometime later and asked where the rat poison was can be imagined. Sister spent the night in hospital, where diligent stomach pumping saved her life. I think that was the last time the local council left unmarked rat poison in anyone's home in an innocent-looking, insecure jam jar.

No safeguards regarding handling and storage. Photo: Vivian Grisogono

On Hvar in recent years I have managed to stop the deliveries by putting up notices round my property saying 'Otrov ne hvala' ('Poison, no thanks'), a tactic I recommend to anyone who does not want to be burdened with handling or storing hazardous substances.

My warning notice: No poisons!

Uncontrolled poison distribution is obviously hazardous. Coupled with the fact that poison is not an efficient method of controlling pests, the current policy needs to be reviewed, and practices need to be substantially improved - as a matter of extreme urgency.

© Vivian Grisogono 2016

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    MARA NORTH CONSERVANCY, Kenya — Under a fading sun, Kenya’s Maasai Mara came alive.

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    © Will McCarry

    Elijah Toirai explains current conservancy boundaries and potential areas for expansion.

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    © Will Turner

    A black-backed jackal hunts for prey.

    “But then the nature finance team at Conservation International — these crazy guys — came up with a wild idea,” Alie said. “In just six months they put this entirely new funding model together: loaning money at an affordable rate to the conservancies so that they can continue to pay staff and wildlife rangers.”

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    The loans enabled families in the Maasai Mara to continue receiving income from their lands to pay for health care, home repairs, school fees and more. And because tourism revenues — not government funding — support wildlife protection in conservancies, this replacement funding ensured wildlife patrols continued normally, with rangers working full time.

    Born out of this emergency, we discovered a new way to do conservation.

    Elijah Toirai

    “The catastrophe of COVID-19 was total for us,” said Benard Leperes, a landowner with Mara North Conservancy and a conservation expert at Maasai Mara Wildlife Conservancies Association. “Without Conservation International and the fund, this landscape would have not been secured; the conservancies would have disintegrated as people were forced to sell their land to convert it to agriculture.”

    But it was communities themselves that proved the model might be replicable after the pandemic ended.

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    “Born out of this emergency, we discovered a new way to do conservation.”

    A new era for conservation

    The high plateaus overlooking the Maasai Mara are home to the very last giant pangolins in Kenya.

    These mammals, armored with distinctive interlocking scales, are highly endangered because of illegal wildlife trade. In Kenya, threats from poaching, deforestation and electric fences meant to deter elephants from crops have caused the species to nearly disappear. Today, scientists believe there could be as few as 30 giant pangolins left in Kenya.

    Conservancies could be crucial to bringing them back. Conservation International has identified opportunities to provide transformative funding for conservancies in this area — a sprawling grassland northwest of Maasai Mara that is the very last pangolin stronghold in the country. The fund will help communities better protect an existing 10,000-hectare (25,000-acre) conservancy and bring an additional 5,000 hectares under protection. It provides a safety net, ensuring a steady income for the communities as the work of expanding the conservancy begins. With a stable income, communities can start work to restore the savanna and remove electric fences that have killed pangolins. And as wildlife move back into the ecosystem, the grasslands will begin to recover.

    In addition to expanding conservancies around Maasai Mara, Conservation International has identified other critical ecosystems where community conservancies can help lift people out poverty, while providing new habitats for wildlife. Conservation International has ambitious plans to restore a critical and highly degraded savanna between Amboseli and Tsavo National Parks in southern Kenya, as well as a swath of savanna outside Kruger National Park in South Africa.

    © Emily Nyrop

    A lone acacia tree in a sea of grass.

    Elephants, fire, Maasai and cattle

    Many of the new and emerging community conservancies have been carefully chosen as key wildlife corridors that would be threatened by overgrazing livestock.

    When the first Maasai Mara conservancies were established in 2009, cattle grazing was prohibited within their boundaries. When poorly managed, cattle can wear grasses down to their roots, triggering topsoil erosion and the loss of nutrients, microbes and biodiversity vital for soil health. It was also believed that tourists would be put off by the sight of livestock mingling with wildlife.

    © Emily Nyrop

    Cattle are closely monitored in the Maasai Mara to prevent overgrazing.

    However, over the years, landowners objected, lamenting the loss of cultural ties to cattle and herding. “That was when we changed tactics,” said Raphael Kereto, the grazing manager for Mara North Conservancy.

    Beginning in 2018, Mara North and other conservancies in the region started adopting livestock grazing practices to restore the savanna. Landowners agreed to periodically move livestock between different pastures, allowing grazed lands to recover and regrow,  mimicking the traditional methods pastoralists have used on these lands for hundreds, if not thousands, of years.

    “Initially, there was a worry that maybe herbivores and other wildlife will run away from cattle,” said Kereto. “But we have seen the exact opposite — the wildlife all follow where cattle are grazing. This is because we have a lot of grass, and all the animals follow where there is a lot of grass. We even saw a cheetah with a cub that spent all her time rotating with wildlife.”

    “It's amazing — when we move cattle, the cheetah comes with it.”

    The loans issued by the fund — now called the African Conservancies Facility — will enhance rotational grazing systems, which are practiced differently in each conservancy, by incorporating best practices and lessons from the organization’s Herding for Health program in southern Africa.

    © Will Turner

    An elephant herd stares down a pack of hyenas.

    For landowners like Dickson Kaelo, who was among the pioneers to propose the conservancy model in Kenya, the return of cattle to the ecosystem has restored a natural order.

    “I always wanted to understand how it was that there was so much more wildlife in the conservancies than in Maasai Mara National Reserve,” said Kaelo, who heads the Kenya Wildlife Conservancy Association, based in Nairobi.

    “I went to the communities and asked them this question. They told me savannas were created by elephants, fire and Maasai and cattle, and excluding any one of those is not good for the health of the system. So, I believe in the conservancies — I know that every single month, people go to the bank and they have some money, they haven't lost their culture because they still are cattle keepers, and the land is much healthier, with more grass, more wildlife, and the trees have not been cut.

    “For me, it’s something really beautiful.”


    Further reading:

    Will McCarry is the content director at Conservation International. Want to read more stories like this? Sign up for email updates. Also, please consider supporting our critical work.

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