Lowland Grainy Frog Kalophrynus palmatissimus

Lowland Grainy Frog Kalophrynus palmatissimus

IUCN Status: Endangered

Location: Peninsular Malaysia

The Lowland Grainy #Frog Kalophrynus palmatissimus is an elusive leaf litter #amphibian found in the rainforests of Peninsular #Malaysia. Their survival is under dire threat from rampant #palmoil-driven #deforestation, as well as infrastructure expansion and quarrying. The widespread clearing of forests for monoculture plantations has stripped away the rich, damp habitats they rely on for shelter, breeding, and foraging. As forest fragments become smaller, their populations are increasingly isolated and vulnerable. Without urgent action to curb deforestation, this species could vanish forever. Every time you shop, fight for their survival and #BoycottPalmOil #Boycott4Wildlife.

Rough skinned Lowland Grainy #Frogs look like leaves 🐸🌿making them invisible to predators. Yet the expansion of #palmoil #deforestation is a formidable threat to these #amphibians. Fight for them and #BoycottPalmOil 🌴⛔️ #Boycott4Wildlife @palmoildetect https://palmoildetectives.com/2021/01/25/lowland-grainy-frog-kalophrynus-palmatissimus/

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Habitat within this species’ range has been converted to non-timber plantations, such as oil palm.

IUCN Red List

Appearance and Behaviour

The Lowland Grainy Frog is a master of disguise, with a rough-textured, grainy skin that mimics the damp leaf litter of the rainforest floor. Their muted brown and orange colouration allows them to remain nearly invisible, blending into the undergrowth to avoid predators. They are a terrestrial species, relying on the moisture of the rainforest to prevent desiccation. Primarily nocturnal, they emerge at night to forage, moving stealthily through the thick leaf litter. Their dependence on undisturbed, humid environments makes them highly susceptible to habitat loss.

Lowland Grainy Frog Kalophrynus palmatissimus

Threats

Palm Oil and Rubber Monoculture Expansion

The primary threat to this species of frog is large-scale deforestation for palm oil and rubber plantations. This relentless destruction of Malaysia’s lowland rainforests has led to widespread loss of their habitat, leaving them with fewer places to breed and forage. As palm oil plantations expand, forested land continues to disappear at an alarming rate.

Infrastructure Development

Road construction, commercial and industrial development, and the expansion of human settlements have fragmented their remaining habitat. As forests are cut into smaller patches, populations become isolated, reducing their genetic diversity and increasing their risk of extinction.

Quarrying for Granite

In Panti Forest Reserve, the threat of granite quarrying looms over the last remaining strongholds of this species. The destruction of forested land for quarrying operations eliminates critical breeding grounds and disrupts entire ecosystems.

Diet

The Lowland Grainy Frog is an insectivore, feeding primarily on small invertebrates that thrive within the leaf litter. Studies have shown that they prefer areas with smooth, non-hairy leaves, which provide shelter and support a higher abundance of invertebrate prey. The loss of rainforest leaf litter due to logging and palm oil monoculture plantations directly impacts their ability to find food.

Reproduction and Mating

These frogs breed in temporary pools and damp forest areas, where males produce high-pitched calls at night to attract mates. Their eggs are laid on moist surfaces, and tadpoles develop in small water bodies. The destruction of rainforest habitats and pollution of water sources place their breeding success at significant risk. Without protected environments, their ability to reproduce is severely compromised.

Geographic Range

This species is endemic to Peninsular Malaysia, where they have been recorded in Ayer Hitam Forest Reserve, Pasoh Forest Reserve, and Panti Forest Reserve. Although they has shown some adaptability to disturbed habitats, its reliance on intact, humid forests makes deforestation the greatest threat to its survival.

Lowland Grainy Frog Kalophrynus palmatissimus

FAQ

Do Lowland Grainy Frogs Make Good Pets?

No. These frogs require undisturbed rainforest conditions to survive. Capturing them for the pet trade disrupts wild populations and contributes to their decline. If you care about their future, the best way to help is by protecting their natural habitat and advocating for rainforest conservation.

How does palm oil deforestation threaten the Lowland Grainy Frog?

Palm oil plantations replace biodiverse rainforests with monocultures, destroying the leaf litter environment that these frogs depend on for shelter and food. Without this protective cover, they are more exposed to predators, extreme temperatures, and habitat fragmentation. The chemicals used in palm oil plantations also pollute nearby water sources, making it even harder for them to breed and survive.

How does habitat fragmentation affect the Lowland Grainy Frog?

When forests are cleared for agriculture, roads, and infrastructure, populations of the Lowland Grainy Frog become isolated in small, disconnected patches of land. This limits their ability to move, find mates, and maintain genetic diversity. Inbreeding and reduced genetic variation make them more vulnerable to disease and environmental changes.

How does quarrying impact the Lowland Grainy Frog?

Granite quarrying in places like Panti Forest Reserve threatens one of their last strongholds. Quarrying removes forest cover, eliminates breeding sites, and disrupts entire ecosystems. Dust and chemical runoff from quarrying can also contaminate the soil and water sources, making them uninhabitable for frogs and their prey.

Take Action!

The Lowland Grainy Frog is vanishing due to palm oil-driven deforestation, habitat destruction, and quarrying. You can help by:

• Refusing to buy products containing palm oil, which fuels rainforest destruction.

• Supporting indigenous-led conservation efforts in Malaysia.

• Raising awareness about the devastating impacts of palm oil on wildlife.

Every time you shop, fight for their survival when you #BoycottPalmOil #Boycott4Wildlife.

https://youtu.be/GZrfKQ4loMI

You can support this beautiful animal

There are no known conservation activities for this animal. Share out this post to social media and join the #BoycottPalmOil #Boycott4Wildlife on social media to raise awareness

Further Information

ICUN endangered logo

Aziz, M. A., Mohd. Top, M. T., Shohaimi, S., Ab Ghani, I., & Fletcher, C. (2020). Morphometric study of Kalophrynus palmatissimus at two forest reserves: Ayer Hitam Forest Reserve, Selangor vs. Pasoh Forest Reserve, Negeri Sembilan. Authorea. Retrieved from https://www.authorea.com/users/322896/articles/452166-morphometric-study-of-kalophrynus-palmatissimus-at-two-forest-reserves-ayer-hitam-forest-reserve-selangor-vs-pasoh-forest-reserve-negeri-sembilan

Muhammad, F. A., Marina, M. T., Shamarina, S., Ab Ghani, N. I., & Fletcher, C. (2019). Types of leaves preference by Kalophrynus palmatissimus in two forest reserves. International Journal of Scientific and Research Publications, 9(10), 319. https://doi.org/10.29322/IJSRP.9.10.2019.p9443

IUCN SSC Amphibian Specialist Group. 2018. Kalophrynus palmatissimus. The IUCN Red List of Threatened Species 2018: e.T57843A90961057. https://dx.doi.org/10.2305/IUCN.UK.2018-2.RLTS.T57843A90961057.en. Downloaded on 25 January 2021.

Wikipedia contributors. (n.d.). Kalophrynus palmatissimus. Wikipedia, The Free Encyclopedia. https://en.wikipedia.org/wiki/Kalophrynus_palmatissimus

Lowland Grainy Frog Kalophrynus palmatissimus


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How can I help the #Boycott4Wildlife?


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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Wildlife Artist Juanchi Pérez

Wildlife Artist Juanchi Pérez

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Mel Lumby: Dedicated Devotee to Borneo’s Living Beings

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Anthropologist and Author Dr Sophie Chao

Anthropologist and Author Dr Sophie Chao

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Health Physician Dr Evan Allen

Health Physician Dr Evan Allen

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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.

https://twitter.com/CuriousApe4/status/1526136783557529600?s=20

https://twitter.com/PhillDixon1/status/1749010345555788144?s=20

https://twitter.com/mugabe139/status/1678027567977078784?s=20

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

#Amphibian #amphibians #Boycott4wildlife #BoycottPalmOil #deforestation #EndangeredSpecies #ForgottenAnimals #Frog #Frogs #herpetology #LowlandGrainyFrogKalophrynusPalmatissimus #Malaysia #palmoil #SouthEastAsia

Goliath Frog Conraua goliath

Goliath Frog Conraua goliath

Red List Status: Endangered

Extant (resident): Cameroon; Equatorial Guinea

Presence Uncertain: Gabon

Goliath #Frogs are the largest frog in the world and can grow as large as a domestic cat. These muscle-bound #amphibians lift heavy rocks to build nests and protect their young. They face extinction from #palmoil #deforestation and human persecution including hunting.

Their nesting and reproduction is hugely dependent upon access to clean, fast-flowing rivers – for this reason the encroachment of industrial scale palm oil, cocoa and timber deforestation and p0llution and #pesticides of rivers are direct threats to the existence of the goliath #frog. Help them every time you shop in the supermarket and #Boycottpalmoil #Boycott4Wildlife

https://youtu.be/hANPCRD1dmE

Goliath #Frogs 🐸💚 are #endangered in #Gabon 🇬🇦 #Cameroon 🇨🇲 and Equatorial Guinea 🇬🇶 by #palmoil #deforestation 🌴🔥 and #hunting. Help them every time you shop and #Boycottpalmoil 🌴🩸☠️🚜🔥⛔️ #Boycott4Wildlife @palmoildetect https://palmoildetectives.com/2023/10/29/goliath-frog-conraua-goliath/

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Goliath #Frogs are the largest #frogs in the world 🐸🤯💚🫶 These muscly #amphibians 🏋️🪨 lift heavy rocks to build nests. They face #extinction from #palmoil. Fight for them when you #Boycottpalmoil 🌴🩸🤮🧐⛔️ #Boycott4Wildlife @palmoildetect https://palmoildetectives.com/2023/10/29/goliath-frog-conraua-goliath/

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Appearance & Behaviour

The goliath frog gets their name from the fact that they are the largest extant frog in the world weighing between 600 grams to 3.2 kilos. Male and females appear almost the same with sexual dimorphism minimal. Despite their abnormally large size, their eggs and tadpoles are a similar size as other frogs. The skin on the back and upper side of their body is a rusty emerald green colour with limbs and underside a yellowish orange hue. They have excellent hearing but don’t possess a vocal sack, meaning that they don’t have a mating call – as do many other frog species.

The Goliath Frog is adversely affected by the loss of forest habitat for agriculture (including the creation of new cocoa plantations, banana plantations, and palm oil plantations), logging and human settlements.

Read more

Goliath Frog Conraua goliathGoliath Frog Conraua goliathGoliath Frog Conraua goliathGoliath Frog Conraua goliathGoliath Frog Conraua goliath threatsGoliath Frog Conraua goliathGoliath Frog Conraua goliathGoliath Frog Conraua goliathGoliath Frog Conraua goliath

Geographic range

These frogs are typically found near fast flowing rivers with sandy bottoms in Cameroon and Equatorial Guinea. They may have now gone extinct in Gabon. They prefer clear and oxygenated water from clean rivers and streams in densely forested and humid parts of the rainforest. They typically stay in rivers during the heat of the day and will emerge onto land during the night time.

Goliath frogs don’t survive well in heavily degraded and deforested areas and prefer undisturbed forest, streams and fast-flowing rivers far away from villages.

Diet

Goliath tadpoles feed on a single aquatic plant Dicraeia warmingii which is found only in areas of clean oxygenated water close to waterfalls and fast-flowing rapids. This explains their range and serious vulnerability to extinction.

Adult goliath frogs are less fussy and will feed on multiple food sources including: baby turtles, young snakes, small mammals, bats, crustaceans, mollusks, fish, dragonflies, locusts, insects, spiders and worms.

Mating & reproduction

Unlike most other frogs, goliath frogs don’t have a vocal sac and therefore don’t call to their mates.

Goliath frogs create nesting sites for offspring – this is a form of parental care. Adult males will take their cue from the environment in order to build a nest that is going to be safest for their offspring. They have three kinds of nests.

Each nest type presents advantages and disadvantages depending on whether it is the dry or the rainy season and the presence or absence of predators of the eggs at different sites.

  1. rock pools cleared of leaf litter.
  2. Washouts at riverbanks.
  3. Depressions dug into the gravel of riverbanks.

The third kind of nest is arduous to create and is typically one metre in diameter. The building of this kind of nest requires brute strength for moving large rocks. It is thought that this is why goliath frogs are so large and muscular. Other extra large frog species such as gladiator frogs, bornean giant river frogs also perform this task.

The construction of nest is used by males as a way of demonstrating their prowess and reproductive fitness as mates to females. Male frogs provide most of the parental investment in the eggs and nest building, whereas females will deposit the eggs after fertilisation and then depart afterwards. Larval development of eggs to tadpoles to frogs takes approximately 85-95 days.

Threats

The Goliath Frog is adversely affected by the loss of forest habitat for agriculture (including the creation of new cocoa plantations, banana plantations, and palm oil plantations), logging and human settlements.

Read more

Goliath frogs face multiple human-related threats, including:

  • Agricultural pollution and run-off: Pesticides and chemicals used in palm oil and cocoa plantations in this region are toxic to Goliath frogs, who require clean rivers to reproduce.
  • Industrial timber, palm oil, meat and cocoa deforestation
  • Human consumption: Both for local subsistence and sold to bushmeat markets.
  • Collection for the illegal pet trade: Animals are exported from Cameroon to Zoos in the USA and Europe. Although captive frogs live longer than their wild relatives, they are not able to breed in captivity.

Support Goliath Frogs by going vegan and boycotting palm oil in the supermarket, it’s the #Boycott4Wildlife

Goliath Frog Conraua goliathGoliath Frog Conraua goliath threats

Support the conservation of this species

This animal has no protections in place. Read about other forgotten species here. Create art to support this forgotten animal or raise awareness about them by sharing this post and using the #Boycottpalmoil #Boycott4Wildlife hashtags on social media. Also you can boycott palm oil in the supermarket.

Further Information

IUCN SSC Amphibian Specialist Group. 2019. Conraua goliathThe IUCN Red List of Threatened Species 2019: e.T5263A96062132. https://dx.doi.org/10.2305/IUCN.UK.2019-1.RLTS.T5263A96062132.en. Accessed on 12 November 2022.

Goliath Frog on Animalia.bio

Goliath Frog on Wikipedia

Marvin Schäfer, Sedrick Junior Tsekané, F. Arnaud M. Tchassem, Sanja Drakulić, Marina Kameni, Nono L. Gonwouo & Mark-Oliver Rödel (2019) Goliath frogs build nests for spawning – the reason for their gigantism?, Journal of Natural History, 53:21-22, 1263-1276, DOI: 10.1080/00222933.2019.1642528

Contribute to palm oil detectives - black rhino in profile

How can I help the #Boycott4Wildlife?


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.

Enter your email address

Sign Up

Join 3,529 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

Wildlife Artist Juanchi Pérez

Read more

Mel Lumby: Dedicated Devotee to Borneo’s Living Beings

Mel Lumby: Dedicated Devotee to Borneo’s Living Beings

Read more

Anthropologist and Author Dr Sophie Chao

Anthropologist and Author Dr Sophie Chao

Read more

Health Physician Dr Evan Allen

Health Physician Dr Evan Allen

Read more

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

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

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.

https://twitter.com/CuriousApe4/status/1526136783557529600?s=20

https://twitter.com/PhillDixon1/status/1749010345555788144?s=20

https://twitter.com/mugabe139/status/1678027567977078784?s=20

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

#Africa #AfricanNews #Amphibian #amphibians #Boycott4wildlife #BoycottPalmOil #bushmeat #Cameroon #deforestation #endangered #EndangeredSpecies #EquatorialGuinea #extinction #ForgottenAnimals #Frog #Frogs #Gabon #GoliathFrogConrauaGoliath #herpetology #hunting #illegalPetTrade #PalmOil #palmoil #pesticides #pollution