Emerson Y. Sy

Emerson Y. Sy

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114
Publications
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Publications

Publications (114)
Article
Full-text available
Seahorses Hippocampus spp. are a unique group of fish characterized by their unusual morphology and male pregnancy. The current 48 seahorse species occur mainly in shallow seawaters globally, of which 10 species occur in the Philippines. Estimated annual seahorse collection in the Philippines for the traditional medicine trade was 4,000,000 individ...
Technical Report
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The illegal wildlife trade is one of the most lucrative transnational crimes in the world. Numerous wildlife are threatened with extinction due to overexploitation for food, medicine, and as pets. Although it is difficult to quantify the illegal wildlife trade due to its mostly clandestine nature, analyzing seizure data can indicate its magnitude....
Technical Report
Full-text available
Seizure data analysis from 2000–2017 documented 38 cases involving an estimated 667 to 740 Philippine Pangolins. Additionally, 10 tonnes of frozen Sunda Pangolins involving 2,870 animals were confiscated from a vessel in 2013. In the most recent period from 2018–2019, a total of 28 incidents comprising seizures and retrievals involving an estimat...
Article
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NAJA SAMARENSIS (Southern Philippine Cobra). PHILIPPINES: BANGSAMORO REGION: MINDANAO: MAGUINDANAO PROVINCE: Municipality of Upi: Barangay Borongotan, Purok Gladiola (6.98629°N, 124.16893°E; WGS 84), 475 m elev. 11–12 July 2022. Peter Jan D. de Vera. Verified by Lief Erikson D. Gamalo. Zoological Reference Collection, Lee Kong Chian Natural History...
Data
Checklist of reptiles of the Philippines
Book
This photographic identification guide to 225 lizard species most commonly seen in mainland and maritime Southeast Asia (covering Brunei Darussalam, Cambodia, Indonesia, Laos, Myanmar, Peninsular and east Malaysia, Thailand, Timor-Leste, Singapore, the Philippines and Vietnam) is perfect for resident and visitor alike. High quality photographs from...
Article
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CITES, the Convention on International Trade in Endangered Species of Wild Fauna and Flora, is an international agreement among currently 183 Parties. It is based on the use of three Appendices, in which species are listed according to their need for regulation in international trade. The vast majority of all CITES species are listed in Appendix I...
Article
The global trade in wildlife affects most major taxonomic groups (Fukushima et al., 2020; Scheffers et al., 2019). Managing wildlife trade requires an accurate understanding of the dimensions of trade and its impacts (positive, neutral, or negative) on the conservation of native wildlife populations. We are concerned that assertions made by Natusch...
Technical Report
Full-text available
First published record of King Cobra (Ophiophagus hannah)
Article
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Monitor lizards (genus Varanus) are utilized for their skin, meat and parts, or as pets. Eleven endemic species are currently recognized in the Philippines, including the only three known frugivorous monitor species in the world. We conducted a 30-month online study and reviewed 30 years (1989-2018) of CITES trade data to determine the dynamics of...
Article
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The Philippine or Palawan Forest Turtle Siebenrockiella leytensis is the only endemic turtle known to occur in the Philippines. It was assessed as Critically Endangered in 2000 and has been considered as one of the world's top 25 most endangered turtles since 2003. The species is accorded protection nationally by the Wildlife Protection and Conserv...
Article
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The Tokay Gecko Gekko gecko is traded internationally in the millions annually for use in traditional medicines and to a lesser extent, for the pet trade. The vast majority of Tokay Geckos are collected in the wild and apparent captive-bred individuals may be in fact wild-caught as well. A get-rich-quick scheme involving the trade of Tokay Gecko ac...
Article
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Niche shifts and environmental non-equilibrium in invading alien species undermine niche-based predictions of alien species’ potential distributions and, consequently, their usefulness for invasion risk assessments. Here, we compared the realized climatic niches of four alien amphibian species (Hylarana erythraea, Rhinella marina, Hoplobatrachus ru...
Article
Full-text available
The Philippine Forest Turtle Siebenrockiella leytensis is a critically endangered species endemic to the Palawan group of islands. Evidence of this species breeding in captivity is very scarce and limited to two documented events. Although strictly protected, illegal trade seems to continue with sightings of this species in China, USA, and Europe....
Article
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New record of Kaloula pulchra, Eleutherodactylus planirostris and Hoplobatrachus rugulosus on Leyte Island, Philippines
Article
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Illegal trade in wildlife in Indonesia is rampant, and includes many little-known species, such as the Sulawesi Bear Cuscus Ailurops ursinus. Too often the trade in less charismatic species goes unnoticed, with many being pushed towards extinction. Sadly, few, if any, effective interventions are put in place to prevent further declines. The demand...
Article
Six alien frogs have been introduced in the Philippines: chronologically, Hylarana erythraea, Rhinella marina, Lithobates catesbeianus, Hoplobatrachus rugulosus, Kaloula pulchra, and Eleutherodactylus planirostris. Here, we collected and synthesized historical and geographical data to reconstruct their history of invasion and to update their curren...
Article
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King Cobra Ophiophagus hannah predation on Palawan Water Monitor Varanus palawanensis in the Philippines
Article
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The endemic-rich amphibian fauna of the Philippine Archipelago (ca. 350,000 km2) includes six alien frogs: the American bullfrog (Lithobates catesbeianus), Asiatic painted toad (Kaloula pulchra), cane toad (Rhinella marina), Chinese bullfrog (Hoplobatrachus rugulosus), green paddy frog (Hylarana erythraea), and greenhouse frog (Eleutherodactylus p...
Article
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The Red-tailed Green Ratsnake has a wide distributional range in Southeast Asia, including Andaman Islands. The snake occurs in the Philippines on the islands of Balabac, Batan, Bohol, Bongao, Calayan, Camiguin Norte, Dinagat, Leyte, Lubang, Luzon, Marinduque, Mindanao, Negros, Palawan, Panay, Sabtang and Sibuyan (Sy & Tan, 2013; Leviton et al., 20...
Presentation
Full-text available
Introduction: Horizon scanning methods identify potentially invasive alien species (i.e., alien species that are not occurring in an area but can potentially threaten native biodiversity if introduced), based on its probability of success in each stage of the invasion process (i.e., introduction, establishment, and spread) and their eventual impact...
Article
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In 2004, the Philippines' Department of Environment and Natural Resources issued the National List of Threatened Fauna Species. Between 2015 and 2017, this was reviewed by assessing 1994 taxa, including 57 mammals, 683 birds, 355 reptiles, 115 amphibians, and 784 invertebrates, using the threatened categories specified in the 2001 Wildlife Reso...
Article
Full-text available
In 2004, the Philippines' Department of Environment and Natural Resources issued the National List of Threatened Fauna Species. Between 2015 and 2017, this was reviewed by assessing 1994 taxa, including 57 mammals, 683 birds, 355 reptiles, 115 amphibians, and 784 invertebrates, using the threatened categories specified in the 2001 Wildlife Resource...
Article
Full-text available
The illegal wildlife trade is a major threat to an increasingly long list of species, and nowhere is this threat greater than in Southeast Asia. The demand for live animals from Southeast Asian countries for the exotic pet trade threatens a wide variety of species, including some already on the brink of extinction. Here we report on seizures made o...
Technical Report
Full-text available
The trade in live reptiles as pets has increased significantly in the last three decades with Asian countries playing an increasing role as important trade hubs and consumers. In the Philippines, all non-native and native reptile species are protected under the Wildlife Act of 2001 and enthusiasts are required to obtain permits to keep reptiles leg...
Article
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First record of the Greenhouse Frog on Palawan Island
Article
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First record of Naja philippinensis on Catanduanes Island
Article
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First record of Eleutherodactylus planirostris on Mactan Island
Article
A new species of the freshwater crab genus Sundathelphusa Bott, 1969 (Gecarcinucidae) is described from the island of Mindanao in the southern Philippines. The Philippine Islands host the greatest species diversity of this genus, although only four species were previously known from Mindanao. The new species is most similar to S. mistio (Rathbun, 1...
Article
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OPHIOPHAGUS HANNAH (King Cobra). PHILIPPINES: LUZON ISLAND: NUEVA VIZCAYA PROVINCE: Municipality of Kasibu: Barangay Didipio (16.331311°N, 121.464778°E; WGS 84), 686 m elev. 17 September 2016. Bonifacio V. Labatos, Jr. Verified by Indraneil Das. Digital image voucher, Lee Kong Chian Natural History Museum, National University of Singapore ZRC [IMG]...
Article
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King Cobra Ophiophagus hannah in Nueva Vizcaya, Luzon, Sorsogon, Luzon, and Bohol Island
Article
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Of the 10,272 currently recognized reptile species, fewer than 8% are regulated by the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) and the European Wildlife Trade Regulations (EWTR). However, The International Union for Conservation of Nature (IUCN) Red List has assessed 45% of the world’s reptile species...
Article
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King Cobra Ophiophagus hannah in Nueva Ecija, Luzon Island, Cebu Island, Zamboanga del Norte, Mindanao Island
Data
Individual collected (SVL = 110 mm) represents the first provincial record. Introduced species in Philippines, previously recorded on Luzon, Mindanao, Mindoro, Palawan, and Panay (Diesmos et al. 2006. J. Environ. Sci. and Manage. 9:41−53). Published record on Mindanao from Agusan del Sur Province (Sularte et al. 2015. Advances in Environ. Sci. 7:20...
Article
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The herpetological fauna of the Philippine Islands is high in diversity and endemism (Brown and Diesmos 2009; Brown et al. 2013; Diesmos et al. 2014), yet faces threats such as habitat mod- ification and loss, natural catastrophes (i.e., Typhoon Haiyan), invasive species, hunting for food or the pet trade, and the spread of chytrid fungus (Sodhi et...
Book
Full-text available
Sy, E.Y. 2015. Turtles and tortoises in the Philippine pet trade. Red Rhino Publishing, Manila, Philippines. 105 pp.
Book
Full-text available
The most comprehensive bibliography on Philippine amphibians and reptiles. Copies may be ordered from redrhinopublishing@gmail.com
Article
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Sy, E.Y., L.A. de Layola, C.M.T. Yu, and A.C. Diesmos. 2015.
Article
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Keeping reptiles as pets has steadily increased in popularity as evidenced by increasing trade volume in the last few decades. To establish a baseline data on available exotic reptiles and to elucidate the dynamics of reptile trade in the Philippines, wildlife trade surveys and interviews were conducted between 2008–2013 in Metro Manila, Cebu, and...
Article
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Naja philippinensis in Benguet Province, Luzon Island, Philippines
Article
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Trading exotic amphibians is a cause for concern due to its possible negative effects. A checklist of exotic amphibians in the Philippine pet trade was compiled based on surveys conducted between 2008 and 2013. Thirty five exotic species were documented, including the African Clawed Frog (Xenopus laevis), a widely available species in the trade and...
Article
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H. platyurus is a moderate-sized (43-58 mm SVL) gecko with a widepread distribution in Southeast Asia and in the Philippines.

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