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Research & Conservation Institute

   
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Madagascar Conservation: The Angonoka Tortoise

The Angonoka tortoise is the world’s most endangered tortoise.

Endemic to Madagascar, the Angonoka tortoise (also known as the Ploughshare, Madagascar or Madagascar angulated tortoise) Madagascar Conservation: The Angonoka Tortoiseis found in only a sixty square kilometre area around Baly Bay and is one of the rarest land tortoises in the world. The terrain and plant life in this area is mixed and includes savannah, bamboo scrub, mangrove swamp and deciduous forest. The tortoises prefer the bamboo thickets.

The Angonoka (Astrochelys yniphora) and the Radiated (Astrochelys radiata) tortoise are the only species in the genus.

Angonoka tortoises are smallish land tortoises that reach around 40 centimetres long and have brown, high-domed shells. Males can weigh over 10 kg with females averaging 8.8 kg. The name “Ploughshare” comes from one of the plates (or scutes) of the lower shell projecting out and up between the front legs (resembling a ploughshare) which male tortoises use when fighting in an attempt to flip the other tortoise over. Fighting mostly occurs during breeding season when females bury up to seven clutches of eggs. These hatch during the rainy season and are left to fend for themselves.

ploughshare 1Unfortunately, females only start laying eggs after they reach 15 to 20 years of age, making conservation efforts even more difficult. Fertility rates and hatching success rates mean that only about 4 hatchlings are produced per season per female.

The current population is estimated at 600 individuals and is sadly still decreasing. They are therefore at an extremely high risk of extinction and researchers believe that these tortoises will become extinct in the wild within the next 15 years.

The tortoise’s main predator is the bush pig which was introduced into the area by man. The bush pig eats the tortoise’s eggs and young.

Included in the threats to the tortoise population is their collection for the pet trade (because of their attractive shell colourations) and the popular use of fires to clear grazing land for cattle. Luckily, conservation groups have created firebreaks through controlled fires which have led to the decrease in out of control fires.

Although there has been an increase of enforcement of the restrictions on illegal trade, they have remained in extremely high baby ploughshare - tortoise conservationdemand on the global pet market – a fully grown female tortoise was recently estimated to sell for $60,000 on the Asian black market.

Conservationists have even begun engraving their shells with identifying marks to tarnish their most attractive feature and make them less desirable to poachers and collectors. This is a last-chance effort to try and protect them and is not dissimilar to the cutting of a rhino’s horn to make them less attractive to poachers. Engraving needs to be superficial though, no deeper than the keratin layer of the shell, so that it isn’t painful, but it still causes discomfort due to the trauma of the capture, etc., although it is worth it in the long run if it saves their life.

Conservationists have also developed captive breeding programs and conservation plans that include the community around their habitat. Communities around the tortoise’s habitat have started creating firebreaks and proposed the creation of a park to protect the tortoise and the forests.

Even with all of these improvements, close monitoring of the tortoise population and the global pet trade is still essential. As recently as 2013, smugglers were arrested carrying a single bag containing 54 Angonoka tortoises and 21 Radiated tortoises into Thailand. The 54 Angonoka tortoises could be as much as 10% of the world’s population of the species!

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Madagascar Research and Conservation Institute

4 days ago

Madagascar Research and Conservation Institute
Join us in Marine program and explore and learn this sea slug biodiversity in our home reef! 🔥☺️#madagascarvolunteer #madagascar #turtletowerhomereef #nudibranch #seaslug #marineprogram #conservation #biodiversity #indicatorspecies #importantrole #marinelife ... See MoreSee Less

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Madagascar Research and Conservation Institute

1 week ago

Madagascar Research and Conservation Institute
It was a good week to say hi to everyone from us with a cool drone shot by @dadsonnnnnnn 🎉🥳 #madagascarvolunteer #volunteer #volunteering #goodweek #volunteeringisfun #turtlecove #itsthewibe ... See MoreSee Less

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Madagascar Research and Conservation Institute

2 weeks ago

Madagascar Research and Conservation Institute
Meet Solly, our much-loved Marine Conservation Officer at Madagascar Research and Conservation Institute (MRCI). Growing up in a small rural fishing community in northern Madagascar, he has always had a deep connection to the oceanSoon after completing his higher education, Solly enrolled in the University of North Antsiranana where he earned a Master’s Degree in Marine SciencesIn 2019, Solly was accepted as a marine intern at MRCI. With his amazing attitude, work ethic and enthusiasm, he was quickly promoted to Marine Conservation OfficerSolly’s dream is to become a PADI Diving Instructor.MRCI has undertaken to create this GoFundMe account in collaboration with Emily Borth to help Solly achieve his dream.Please donate and help us make Solly’s dream come true by click the link below! 🙏🏼☺️https://gofund.me/176e591dPhoto credit : @hello_socialbutterfly 🌸#madagascar #madagascarvolunteer #solly’sdream #fundraiser #padiinstructor #PADIIDC2023 #PADIIDC2024 #paditv #localmarinebiologist #marineresearch #padiprofessional #futurecareer #gofundme ... See MoreSee Less

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Madagascar Research and Conservation Institute

2 weeks ago

Madagascar Research and Conservation Institute
Hiiii volunteers of the week! 🥰Shoutout to community and construction team and also Jeronimo for showing the dignity, commitment, passion to the program and most important to the people in the village!We are lucky to have you all here at our camp 🎉Join us? Click link on bio 🐣#madagascarvolunteer #madagascar #volunteeroftheweek #volunteering #community #teachingenglish #construction #buildingtrashsystem #paintingtheschool #forkids #forlocals #communityengagement ... See MoreSee Less

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Madagascar Research and Conservation Institute

3 weeks ago

Madagascar Research and Conservation Institute
We are glad to share that our community library in Ampangorina village has been refurbished by our community volunteers, staff and help from little hands! ☺️In many of the village in Madagascar, young people have little to no access to reading materials, we hope by keep adding books to our community library can improve in children’s literacyThanks to our volunteers that donated the books, your help and support is always appreciated 😇🌸#madagascarvolunteer #madagascar #community #communitylibrary #forchildren #local #books #donatedbooks #improvingchildrenliteracy #communitydevelopment ... See MoreSee Less

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Madagascar Research and Conservation Institute

4 weeks ago

Madagascar Research and Conservation Institute
Hello teachers! 🎉Our community program is strong as we have a lot of volunteers that are passionate to give what they have to the local community in the village by teaching english, from the kids classes to adult classes, beginner to intermediate level! Its very rewarding when you come to Madagascar with a purpose and leave knowing you made a positive impact! 🎉❤️Join us on the Community program, click link on bio! 🔥#madagascarvolunteer #madagascar #teachers #english #beginnerclass #intermediateclass #learning #education #forlocals #impact #purpose #communityeducation #engagement #volunteeringisfun ... See MoreSee Less

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Madagascar Research and Conservation Institute

4 weeks ago

Madagascar Research and Conservation Institute
Congratulations Jack-ie Chan and Daan 🎉 Thanks for bringing a lot of good mood and joy to the camp, also for your consistent contribution in Forest program and Marine program, we glad to have you guys around and leave with an impact! Volunteering with us click link on bio!#madagascarvolunteer #madagascar #volunteer #volunteering #forlocal #saveplanet #saveocean #sustainable #volunteeringisfun #volunteeroftheweek #conservation #motivated ... See MoreSee Less

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Madagascar Research and Conservation Institute

1 month ago

Madagascar Research and Conservation Institute
Today we went to the shipwreck for a dive that called mitsio wreck🛥 located not too far from Nosy Komba only 35min boat drive!And please meet the toxic trio (Stone fish, Lion fish as well Scorpion fish)! Can you guys spotted it? 🙈 they are incredibly well camouflaged and sometimes even use biofluorescence (glowing with a different color) to blend into their environment 🥰These carnivores got their name from the many toxic spikes and spines across their bodies. The venom from these contains powerful neurotoxins that can be extremely painful, and even deadly. And yes, that goes for humans too!We also wants to congratulate Gorka & Emily for finishing their Advance Open Water course and now its time to learn more about our ocean and help us to carry the survey as soon as they develop our @conservationdiverofficial EMP course in Marine Program! 🥳Join us? Click link on our bio 🎉#madagascar #madagascarvolunteer #marineconservation #mitsiowreck #stonefish #lionfish #scorpionfish #biodiversity #marinelife #conservation #citizenscientist #marineconservationist #practicesurvey ... See MoreSee Less

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Madagascar Research and Conservation Institute

1 month ago

Madagascar Research and Conservation Institute
Job Opportunity in Madagascar at Madagascar Research Conservation Institute (MRCI)!We are looking for PADI Dive Instructor 🤿 who wants to join our team and amazing project in Marine Conservation program which you’ll be able to grow in person with us!We are looking a responsible person who is passionate about diving, strong background of conservation, PADI renewed instructor who is able to teach and followed all the safety standard of diving from Open Water up to Dive Master, and able to service and maintain all diving equipment 🌊Applicants who have completed Conservation Diver internship or Instructor training will be looked upon more favorable as the role will eventually teaching of @conservationdiverofficial course, even some experience in remote areas! What we offer is basic salary, commission on courses, 3 meals a day, accommodation and visas are provided. We are looking to fill this role as soon as possible, get in touch and please send your CV to Wendy@madagascarvolunteer.com ! ... See MoreSee Less

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Madagascar Research and Conservation Institute

1 month ago

Madagascar Research and Conservation Institute
Our marine volunteers are in the water to do practice survey with their EMP course with Solly our local marine biologist!Everyday our volunteers will start the lecture on the topic’s how to monitoring our key indicator species of Invertebrates, Fish, and assess the bottom composition including coral and their state of health followed by a dive to put the theory into the practical 🎉 Our instructor will do debrief after the dive, talking about the struggle that they’ve encountered and give volunteers better understanding more about the ecology of our local reef. Join us in Marine program and help us to raise awareness and be a citizen scientist wherever you go! 🔥And if you feel you can help Solly to achieve his dream to be PADI dive instructor to develop his professional career please share or donate by click the link below, we do really appreciate all the help! 🎉😍https://gofund.me/176e591d#madagascarvolunteer #madagascar #conservation #citizenscientist #marine #conservationdiver #marinebiologist #supportcommunity #staffdevelopment #EMPcourse #ecology #reefmonitoring #practicesurvey #solly’sdream #fundraiser #padiinstructor #PADIIDC2023 #PADIIDC2024 #paditv #localmarinebiologist #marineresearch #padiprofessional #futurecareer #gofundme ... See MoreSee Less

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Contact Us

Madagascar Office: Madagascar Research and Conservation Institute, Home Sakalava, Rue R Tsiomeko, Hell-Ville, Nosy Be, Madagascar
Phone: +261 32 50 891 57
Office Hours: Please take note of the time zone differences when contacting us.
Email: volunteer@madagascarvolunteer.com

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Teaching | Marine Conservation | Forest Conservation | Combinations

Disclaimer:  We reserve the right to change our Volunteer Programs at any time, without prior notice.