Palm Oil Detectives

2026-03-14 14:42:00

Hydroelectric Dams Take a Toll on Jaguars, Tigers and Lions

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As reigning apex #predators of a variety of ecosystems, #bigcats like tigers, jaguars and lions are vital for ecosystem health. Yet forest loss for hydroelectric dam building is a real threat to these majestic big cats. Aside from depriving wildlife of a home, forest loss also contributes to #climatechange. It’s ironic then that hydroelectricity, which is being developed worldwide (especially in South American and Asian countries) as an alternative energy source to fossil fuels, is a big cause of deforestation. Alternative energy is important however shouldn’t come at the cost of species under threat. Better protections are urgently needed. #Boycott4Wildlife

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Often lauded as a saviour for the #environment and #climate, hydroelectric dams threaten #bigcats: #jaguars and #tigers 🐯🐅 Better protection of forests is needed to ensure endangered big #cats are protected #Boycott4Wildlife @palmoildetect.bsky.social wp.me/pcFhgU-9cr

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Written by Tara Pirie, Postdoctoral Researcher, People and Wildlife Research Group, University of Reading. This article is republished from The Conversation under a Creative Commons license. Read the original article.

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Big cats are among the most widespread top predators on Earth. Lions stalk zebra in the African savanna, tigers ambush antelope in the forests of Asia and jaguars hunt deer in the jungles of South America. They play an important role in ecosystems by regulating the numbers of these herbivores, in turn, reducing the deterioration of vegetated habitats and maintaining species diversity.
Ondrej Prosicky/Shutterstock
Tigers, lions and jaguars must cover large areas to find food, so they need a lot of energy. As with many large carnivores, big cats are under threat from habitat loss, which leaves them with less to eat. Their spread-out populations and slow reproductive rates make them particularly vulnerable. While the habitats in which big cats live range from boreal forests at high latitudes to tropical rainforests at the equator, the causes of habitat loss are largely the same: logging for wood and fuel, plantations, farming and urbanisation.

youtu.be/7VVv9oAtbVI

Aside from depriving wildlife of a home, forest loss also contributes to climate change. It’s ironic then that hydroelectricity, which is being developed worldwide (especially in South American and Asian countries) as an alternative energy source to fossil fuels, is a big cause of deforestation.

Building hydroelectric dams has caused extinctions and spread diseases in rivers globally, but the threat to ecosystems on land has largely been overlooked. In a recent study, researchers from China and Portugal investigated how existing and planned hydroelectric dams might affect two carnivores: the near-threatened jaguar (with an estimated global population of 173,000) and the endangered tiger (thought to number between 3,200 and 3,500 worldwide).

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The distribution of jaguars and tigers has shrunk 50% and 93% respectively, but the researchers found that hydroelectric plants pose a substantial risk of further declines. They found 164 dams that already intersect the jaguar range and 421 dams that do the same for tigers. This equates to one in five tigers that are likely to be affected by dams, compared with one in 200 jaguars. Since tiger numbers are already so low, this could have a considerable influence on the population’s capacity to recover and may even result in local extinctions.
A dam on the Narmada River in India, where the endangered Bengal tiger is native. Ankit K Sinha/Shutterstock

Damning developments for big cats

Large expanses of land are flooded to create reservoirs when building hydroelectric plants in low-lying, relatively flat areas. Although tigers and jaguars can and do swim, they mainly hunt species such as deer that live on land. Sites chosen for dams typically incorporate floodplains and areas along rivers that are important for both species, since they tend to contain lots of prey.

The flooded area will force both predators and prey into surrounding areas. If the vegetation here can support the influx of herbivores, tigers and jaguars will probably persist. But if it cannot, the predators may be forced further afield in search of food, potentially drawing them into conflict with people who may kill them.

Relatively pristine habitats are under threat. The number of hydroelectric dams is set to quadruple across the jaguar’s range with a further 429 planned, while 41 are expected where tigers roam. Aside from the direct loss of habitat, these new constructions can increase the presence of people in remote areas. Roads built to access new dam sites consequently open up areas that were previously impenetrable. Roads can be a barrier to some species and kill those that try to cross. Roads can also encourage new towns and villages, which divide the habitat further.
A road in Brazil which drives deep into jaguar habitat. Ricardo de O. Lemos/Shutterstock

Mitigating the damage

Where dams exist, the researchers suggest habitat loss could be limited by incorporating the surroundings into a protected area with suitable enforcement. Any new dams, though, especially in conservation areas or areas where top predators prowl, should be avoided. Sadly, most of the dams planned in Asia overlap with significant portions of the tiger’s range.

One way to mitigate the damage from building new hydroelectric plants may be to do it on slopes outside of areas that are crucial for conserving tigers and jaguars. The amount of flooded area needed to produce electricity from these plants when they’re on a slope is smaller compared to those built on lower ground, reducing the overall damage to the surrounding habitat. But impact assessments would need to confirm the plant wasn’t simply creating new issues elsewhere.

Alternative sources of energy are important for a sustainable future, but their benefits should not come at a substantial cost to species already under threat.
Craig Jones Wildlife Photography – A Bengal tiger drinking at a river
Written by Tara Pirie, Postdoctoral Researcher, People and Wildlife Research Group, University of Reading. This article is republished from The Conversation under a Creative Commons license. Read the original article.

ENDS

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Take Action in Five Ways

1. Join the #Boycott4Wildlife on social media and subscribe to stay in the loop: Share posts from this website to your own network on Twitter, Mastadon, Instagram, Facebook and Youtube using the hashtags #Boycottpalmoil #Boycott4Wildlife.

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2. Contribute stories: Academics, conservationists, scientists, indigenous rights advocates and animal rights advocates working to expose the corruption of the palm oil industry or to save animals can contribute stories to the website.

Wildlife Artist Juanchi Pérez

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3. Supermarket sleuthing: Next time you’re in the supermarket, take photos of products containing palm oil. Share these to social media along with the hashtags to call out the greenwashing and ecocide of the brands who use palm oil. You can also take photos of palm oil free products and congratulate brands when they go palm oil free.

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twitter.com/mugabe139/status/1…

4. Take to the streets: Get in touch with Palm Oil Detectives to find out more.

5. Donate: Make a one-off or monthly donation to Palm Oil Detectives as a way of saying thank you and to help pay for ongoing running costs of the website and social media campaigns. Donate here

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#animals #bigCat #bigcats #biodiversity #Boycott4wildlife #cats #Climate #climateChange #climatechange #deforestation #environment #hydroelectric #JaguarPantheraOnca #Jaguars #predators #roads #TigerPantheraTigris #tigers

Tara Pirie

Tara Pirie — Profile on The Conversation

^{The Conversation}

Palm Oil Detectives

2026-03-02 11:20:43

Do you love animals? Make every day #WorldWildlifeDay

This #WorldWildlifeDay, please remember the wild animals you love who are running out of time and land to live on. Research recently found that converting partly logged areas into palm oil plantations sounds the death knell for that ecosystem. Across the globe, from Indonesia to Brazil and Nigeria, vibrant rainforests and animals like reptiles and insects are under threat from palm oil, timber, and meat. This ecocide leaves majestic animals struggling to survive against chainsaws, bulldozers, pesticides and destruction for palm oil and meat agriculture. A multi-billion dollar industry has grown up around legitimising palm oil and meat ecocide, primarily through the RSPO but also other greenwashing schemes as well. Read on to discover more and how you can shine a light on the lives of elusive animals.

This #WorldWildlifeDay take action for #animals great and small 🦋🐦🐘🐒🐍 because #reptiles #insects #mammals and #birds deserve better than #palmoil ecocide and #extinction! When you shop always #Boycottpalmoil #Boycott4Wildlife @palmoildetect wp.me/pcFhgU-iMO

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#Palmoil and #meat #agriculture 🥩💀 are some of the biggest threats to wild #animals and farmed animals. This #WorldWildlifeDay and every single day, make sure fight for them and go #vegan 🥕🍆🍅 #BoycottPalmOil 🌴🩸☠️🧐⛔️ and #Boycott4Wildlife wp.me/pcFhgU-iMO

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Protecting Sumatra’s last remaining tigers

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Take action to protect rainforest animals

By holding to account the powerful corporations that control the world, we have the power to fight back against this ecocide. Here is how you can stand up for rainforest animals, farmed animals, indigenous people, and rainforests:

Make powerful lifestyle changes

The most impactful thing you can do is go plant-based in your diet. Boycott meat, boycott palm oil, and boycott dairy. These industries are the leading causes of global deforestation and animal cruelty.​

Supermarket sleuthing

Next time you are in the supermarket, take photos of products containing palm oil. Share these on social media to call out the greenwashing and ecocide of the brands who use it. Congratulate brands when they go completely palm oil-free.​

Join the #Boycott4Wildlife movement

Follow and join the Boycott4Wildlife movement on this website and social media. Share stories on BlueSky, Mastodon, Twitter and YouTube using the hashtags #Boycottpalmoil and #Boycott4Wildlife to be part of it!

Support indigenous sovereignty and agroecology

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Learn about other animals endangered by palm oil and other agriculture

Global
South America
S.E. Asia
India
Africa
West Papua & PNG

Gursky’s Spectral Tarsier Tarsius spectrumgurskyae

Keep reading

Sunda Flying Lemur Galeopterus variegatus

Keep reading

Western Parotia Parotia sefilata

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Capped Langur Trachypithecus pileatus

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Mountain Tapir Tapirus pinchaque

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Saola Pseudoryx nghetinhensis

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Learn about “sustainable” palm oil greenwashing

Read more about RSPO greenwashing

Lying
Fake labels
Indigenous Land-grabbing
Human rights abuses
Deforestation
Human health hazards

A 2019 World Health Organisation (WHO) report into the palm oil industry and RSPO finds extensive greenwashing of palm oil deforestation and the murder of endangered animals (i.e. biodiversity loss)

Read more

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Take Action in Five Ways

1. Join the #Boycott4Wildlife on social media and subscribe to stay in the loop: Share posts from this website to your own network on Twitter, Mastadon, Instagram, Facebook and Youtube using the hashtags #Boycottpalmoil #Boycott4Wildlife.

• Twitter
• Facebook
• Instagram
• WordPress
• YouTube
• Mail
• Mastodon

Enter your email address

Sign Up

Join 3,179 other subscribers

2. Contribute stories: Academics, conservationists, scientists, indigenous rights advocates and animal rights advocates working to expose the corruption of the palm oil industry or to save animals can contribute stories to the website.

Wildlife Artist Juanchi Pérez

Read more

Mel Lumby: Dedicated Devotee to Borneo’s Living Beings

Read more

Anthropologist and Author Dr Sophie Chao

Read more

Health Physician Dr Evan Allen

Read more

The World’s Most Loved Cup: A Social, Ethical & Environmental History of Coffee by Aviary Doert

Read more

How do we stop the world’s ecosystems from going into a death spiral? A #SteadyState Economy

Read more

3. Supermarket sleuthing: Next time you’re in the supermarket, take photos of products containing palm oil. Share these to social media along with the hashtags to call out the greenwashing and ecocide of the brands who use palm oil. You can also take photos of palm oil free products and congratulate brands when they go palm oil free.

twitter.com/CuriousApe4/status…

twitter.com/PhillDixon1/status…

twitter.com/mugabe139/status/1…

4. Take to the streets: Get in touch with Palm Oil Detectives to find out more.

5. Donate: Make a one-off or monthly donation to Palm Oil Detectives as a way of saying thank you and to help pay for ongoing running costs of the website and social media campaigns. Donate here

Pledge your support
#animalBehaviour #AnimalBiodiversityNews #animalCommunication #animalCruelty #animalExtinction #animalIntelligence #animalRights #biodiversity #Boycott4wildlife #BoycottPalmOil #deforestation #PalmOil #palmOilDeforestation

I discovered a tree kangaroo that had only been seen once – by the man who shot it in 1928

I want people to be excited about the animals I find and get them involved in conservation

^{Phoebe Weston (The Guardian)}