{"id":303097,"date":"2026-02-26T11:38:14","date_gmt":"2026-02-26T11:38:14","guid":{"rendered":"https:\/\/www.newsbeep.com\/nz\/303097\/"},"modified":"2026-02-26T11:38:14","modified_gmt":"2026-02-26T11:38:14","slug":"in-thailand-old-camera-trap-photos-shed-new-light-on-asian-tapirs","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/nz\/303097\/","title":{"rendered":"In Thailand, old camera-trap photos shed new light on Asian tapirs"},"content":{"rendered":"<p>&#13;<br \/>\n                              Archived camera-trap data from southern Thailand\u2019s Khlong Saeng\u2013Khao Sok Forest Complex identified at least 43 individual Asian tapirs, suggesting the area may be a key refuge for the endangered species.Researchers used \u201cbycatch\u201d images from camera traps originally set to photograph bears to estimate tapir density at 6-10 individuals per 100 square kilometers, showing existing data can help monitor elusive species.Modeling suggests the forest complex could hold up to 436 mature tapirs, far higher than previous estimates for Thailand and Myanmar combined, though researchers warn the figure may overestimate actual numbers.Despite the promising findings, Asian tapirs face ongoing threats from habitat loss and snaring, and experts say protecting intact forest strongholds is vital for the species\u2019 survival.<\/p>\n<p>See All Key Ideas<\/p>\n<p>&#13;<\/p>\n<p>Researchers in Thailand have used archived camera-trapping data to identify a stronghold for Asian tapirs in the Khlong Saeng\u2013Khao Sok Forest Complex, a lush network of protected areas in the country\u2019s southern Surat Thani province.<\/p>\n<p>The <a href=\"https:\/\/link.springer.com\/article\/10.1007\/s42991-025-00557-0\" target=\"_blank\" rel=\"noopener external nofollow\" data-wpel-link=\"external\">new study<\/a>, led by Wyatt Petersen, a biologist at King Mongkut\u2019s University of Technology Thonburi in Thailand, and published in the journal Mammalian Biology, shows how camera-trap \u201cbycatch\u201d data \u2014 images of nontarget species \u2014 can be used to monitor tapirs (Tapirus indicus). To date, tapirs have mostly been surveyed using visual transects, in which researchers walk along a predefined path through the forest and count any tapirs they can spot along the way.<\/p>\n<p>The Asian tapir, sometimes also called the Malayan tapir, is the largest of the world\u2019s four tapir species and the only one found outside Latin America. It ranges from southern Myanmar and Thailand to Sumatra and is considered endangered, with fewer than 2,500 mature individuals remaining, according to the <a href=\"https:\/\/www.iucnredlist.org\/species\/21472\/45173636\" target=\"_blank\" rel=\"noopener external nofollow\" data-wpel-link=\"external\">latest assessment<\/a> conducted in 2014 for the IUCN, the global wildlife conservation authority.<\/p>\n<p>Boldly black-and-white patterned adult tapirs can weigh up to 350 kilograms (772 pounds), whereas the more discrete brown coats of calves are flecked with white, perfectly camouflaging them against the dappled light of the forest floor. As nocturnal understory specialists, they have stubbornly thick hides to protect them against scrubby thorns, and a protruding prehensile snout for gathering foliage and fruits that doubles as a \u201csnorkel\u201d while rummaging underwater for aquatic plants.<\/p>\n<p>Although Asian tapirs are preyed on by tigers and leopards, by far their greatest threat is humans. Habitat loss and deaths in snares set by hunters are thought to have halved their numbers across their range over the past few decades, according to the IUCN assessment.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-314646\" src=\"https:\/\/www.newsbeep.com\/nz\/wp-content\/uploads\/2026\/02\/d.-8729168612_827be6144c_o-scaled.jpg\" alt=\"Adult Asian tapir\" width=\"2560\" height=\"1690\"  \/>An adult Asian tapir (Tapirus indicus), photographed in Taman Negara National Park in Peninsular Malaysia. Image by <a href=\"https:\/\/www.flickr.com\/photos\/65695019@N07\/8729168612\" target=\"_blank\" rel=\"noopener external nofollow\" data-wpel-link=\"external\">Bernard Dupont<\/a>. <a href=\"https:\/\/creativecommons.org\/licenses\/by-sa\/2.0\/deed.en\" target=\"_blank\" rel=\"noopener external nofollow\" data-wpel-link=\"external\">CC BY-SA 2.0<\/a>.<\/p>\n<p>The team in Thailand examined 91 photos of tapirs taken by camera traps set up at 40 locations around the forest complex between 2016 and 2017. The camera traps had originally been used to study the two bear species that live in the landscape: the Asian black bear (Ursus thibetanus) and the sun bear (Helarctos malayanus). In the process, the camera traps also photographed many other species, including tapirs. By observing distinctive physical traits like scars, ear marks and signs of sexual identity, the researchers identified at least 43 individual tapirs, mostly photographed at night.<\/p>\n<p>From their modeling, they estimated a tapir population density of between 6-10 individuals per 100 square kilometers (about 15-26 per 100 square miles) in their study area. This is comparable to what\u2019s been found in similar habitats in Peninsular Malaysia, such as Tengku Hassanal Wildlife Reserve (previously known as Krau Wildlife Reserve) and <a href=\"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/j.1749-4877.2012.00321.x\" target=\"_blank\" rel=\"noopener external nofollow\" data-wpel-link=\"external\">Gunung Basor Forest Reserve<\/a>.<\/p>\n<p>The researchers note that this density of tapirs would yield a population size of up to 436 mature individuals across the Khlong Saeng\u2013Khao Sok Forest Complex, dwarfing previous IUCN estimates of \u201cless than 250 individuals\u201d across both Thailand and Myanmar combined.<\/p>\n<p>While the higher-than-expected population size theoretically turns assumptions about the species\u2019 status upside down, the researchers say their estimate should be \u201cinterpreted with caution.\u201d It\u2019s unlikely that tapirs are spread evenly across the forest complex, they say, so the actual population size is probably much smaller.<\/p>\n<p>The Khlong Saeng\u2013Khao Sok Forest Complex is nonetheless \u201can important stronghold for Asian tapirs that warrants dedicated conservation attention and research,\u201d the study says.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-314647\" src=\"https:\/\/www.newsbeep.com\/nz\/wp-content\/uploads\/2026\/02\/c.-\u00a9chinotto_chena.jpg\" alt=\"Asian tapir in forest undergrowth\" width=\"2000\" height=\"1125\"  \/>The black-and-white coloration of adult Asian tapirs breaks up their outline in the forest undergrowth. Image by \u00a9<a href=\"https:\/\/www.inaturalist.org\/observations\/330169914\" target=\"_blank\" rel=\"noopener external nofollow\" data-wpel-link=\"external\">chinotto_chena<\/a>. <a href=\"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/deed.en\" target=\"_blank\" rel=\"noopener external nofollow\" data-wpel-link=\"external\">CC BY-NC 4.0<\/a>.<\/p>\n<p>Protecting remaining forest refuges where tapirs persist is crucial for the long-term survival of the dwindling species, experts say. \u201cThey are large, slow-reproducing species requiring large areas of specific habitat [and] play a vital role as seed dispersers, helping to maintain biodiversity in plant communities,\u201d Naparat Suttidate, an ecologist at Walailak University in Thailand, told Mongabay.<\/p>\n<p>Naparat, who wasn\u2019t involved in the new study, <a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S2351989424003901\" target=\"_blank\" rel=\"noopener external nofollow\" data-wpel-link=\"external\">previously showed<\/a> that habitat fragmentation poses a major threat to Asian tapirs in Thailand. As a shy and nocturnal mammal, they typically stay away from forest edges. \u201cThe few populations which remain in Peninsular Thailand persist within protected areas and their numbers continue to dwindle,\u201d he said.<\/p>\n<p>The Khlong Saeng\u2013Khao Sok camera-trap data also revealed valuable insights into tapir behavior. One curious finding was that tapir numbers in Khlong Saeng\u2013Khao Sok increased with elevation \u2014 a direct contrast to previous <a href=\"https:\/\/www.cambridge.org\/core\/journals\/oryx\/article\/asian-tapir-in-kerinci-seblat-national-park-sumatra-evidence-collected-through-phototrapping\/CE9BE89EFA9F11CF4487AE71B3BA5056\" target=\"_blank\" rel=\"noopener external nofollow\" data-wpel-link=\"external\">findings from Sumatra<\/a>. The researchers say this might reflect stronger seasonal changes in Thai forests compared to the more static year-round conditions in the forests of Sumatra. Tapirs in Thailand may be seeking Sumatra-like forest features that occur at higher elevations there.<\/p>\n<p>Another discovery was differing \u201cspace use\u201d between the sexes. Males were twice as likely to show up on the camera traps than females, indicating females might have significantly larger home ranges than males.<\/p>\n<p>The results also show how existing camera-trap data sets can be used to learn more about Asian tapirs and other animals with small home ranges that might otherwise be overlooked, the researchers say. In this way, the study provides a new way of gathering insights into enigmatic and little-studied species in the face of relentless habitat loss and environmental change.<\/p>\n<p>Understanding more about tapirs can also bring benefits for their forest habitats, according to Naparat. \u201cThey act as an iconic symbol for education and ecotourism,\u201d he said. \u201cFascination with these creatures and concern for their future sparks interest, funding and action that benefits tropical forest conservation as a whole.\u201d<\/p>\n<p>Banner image: An adult Asian tapir (Tapirus indicus). Image by \u00a9<a href=\"https:\/\/www.inaturalist.org\/observations\/172680238\" target=\"_blank\" rel=\"noopener external nofollow\" data-wpel-link=\"external\">Royle Safaris<\/a>. <a href=\"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/deed.en\" target=\"_blank\" rel=\"noopener external nofollow\" data-wpel-link=\"external\">CC BY-NC 4.0<\/a>.<\/p>\n<p>Carolyn Cowan is a staff writer for Mongabay.<\/p>\n<p>Citations:<\/p>\n<p>Petersen, W. J., Steinmetz, R., Sribuarod, K., &amp; Ngoprasert, D. (2026). Insights into the abundance and ecology of Asian tapirs using camera-trap bycatch data. Mammalian Biology. doi:<a href=\"https:\/\/doi.org\/10.1007\/s42991-025-00557-0\" target=\"_blank\" rel=\"noopener external nofollow\" data-wpel-link=\"external\">10.1007\/s42991-025-00557-0<\/a><\/p>\n<p>Rayan, D. M., Mohamad, S. W., Dorward, L., Aziz, S. A., Clements, G. R., Christopher, W. C., \u2026 Magintan, D. (2012). Estimating the population density of the Asian tapir (Tapirus indicus) in a selectively logged forest in Peninsular Malaysia. Integrative Zoology, 7(4), 373-380. doi:<a href=\"https:\/\/doi.org\/10.1111\/j.1749-4877.2012.00321.x\" target=\"_blank\" rel=\"noopener external nofollow\" data-wpel-link=\"external\">10.1111\/j.1749-4877.2012.00321.x<\/a><\/p>\n<p>Suwannaphong, T., Radeloff, V. C., Limmun, W., &amp; Suttidate, N. (2024). The effect of habitat fragmentation on Malay tapir abundances in Thailand\u2019s protected areas. Global Ecology and Conservation, 54, e03186. doi:<a href=\"https:\/\/doi.org\/10.1016\/j.gecco.2024.e03186\" target=\"_blank\" rel=\"noopener external nofollow\" data-wpel-link=\"external\">10.1016\/j.gecco.2024.e03186<\/a><\/p>\n<p>Holden, J., Yanuar, A., &amp; Martyr, D. J. (2003). The Asian tapir in Kerinci Seblat National Park, Sumatra: Evidence collected through photo-trapping. Oryx, 37(1), 34-40. doi:<a href=\"https:\/\/doi.org\/10.1017\/S0030605303000097\" target=\"_blank\" rel=\"noopener external nofollow\" data-wpel-link=\"external\">10.1017\/S0030605303000097<\/a><\/p>\n<p>See related story:<\/p>\n<p><a href=\"https:\/\/news.mongabay.com\/2022\/07\/small-mammals-stranded-by-hydropower-dams-die-out-surprisingly-fast-study\/\" data-wpel-link=\"internal\" rel=\"nofollow noopener\" target=\"_blank\">Small mammals stranded by hydropower dams die out surprisingly fast: Study<\/a><\/p>\n<p>FEEDBACK: <a href=\"https:\/\/docs.google.com\/forms\/d\/e\/1FAIpQLSdwYikhkUZHBMgkZY-4fufZwd-SPyT66xsPyJoy8dYx1FYMaA\/viewform\" target=\"_blank\" rel=\"noopener external nofollow\" data-wpel-link=\"external\">Use this form<\/a> to send a message to the author of this post. If you want to post a public comment, you can do that at the bottom of the page.<\/p>\n<p>                    <img alt=\"\" src=\"https:\/\/www.newsbeep.com\/nz\/wp-content\/uploads\/2026\/02\/9107d4825c02b08157c0fcd5d76225369727ff199bbfc6285f277af6d67d3d73.png\"  class=\"avatar avatar-32 photo\" height=\"32\" width=\"32\" loading=\"lazy\" decoding=\"async\"\/>        <\/p>\n<p>                            &#13;<br \/>\n                            <a href=\"\" data-wpel-link=\"internal\"\/>&#13;<br \/>\n&#13;<\/p>\n<p>        &#13;<\/p>\n","protected":false},"excerpt":{"rendered":"&#13; Archived camera-trap data from southern Thailand\u2019s Khlong Saeng\u2013Khao Sok Forest Complex identified at least 43 individual Asian&hellip;\n","protected":false},"author":2,"featured_media":303098,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[111,139,69,147,406],"class_list":["post-303097","post","type-post","status-publish","format-standard","has-post-thumbnail","category-wildlife","tag-new-zealand","tag-newzealand","tag-nz","tag-science","tag-wildlife"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/posts\/303097","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/comments?post=303097"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/posts\/303097\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/media\/303098"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/media?parent=303097"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/categories?post=303097"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/tags?post=303097"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}