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Journal articles on the topic 'Dinagat islands'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Villancio, Gil Gabriel, Renz Angelo Duco, Ronaldo Sales Jr, et al. "An annotated checklist of birds of the Dinagat Islands, Philippines." Check List 18, no. 5 (2022): 1147–64. http://dx.doi.org/10.15560/18.5.1147.

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The Dinagat Islands hold a large and varied avian fauna with high rate of endemism and species of conservation concern. However, anthropogenic activities pose a grave threat to the avian diversity of these islands. We conducted a three-year (2017&ndash;2019) avifaunal survey using mist-nets to inventory the avian species of the islands. We recorded 37 species in 22 families. Seventeen species are Philippine endemic, one species is of conservation concern, and two species are newly recorded from the Dinagat Islands. We also present an annotated checklist of bird species of the Dinagat Islan

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Villancio, Gil Gabriel, Renz Angelo Duco, Jr Ronaldo Sales, et al. "An annotated checklist of birds of the Dinagat Islands, Philippines." Check List 18, no. (5) (2022): 1147–64. https://doi.org/10.15560/18.5.1147.

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The Dinagat Islands hold a large and varied avian fauna with high rate of endemism and species of conservation concern. However, anthropogenic activities pose a grave threat to the avian diversity of these islands. We conducted a three-year (2017–2019) avifaunal survey using mist-nets to inventory the avian species of the islands. We recorded 37 species in 22 families. Seventeen species are Philippine endemic, one species is of conservation concern, and two species are newly recorded from the Dinagat Islands. We also present an annotated checklist of bird species of the Dinagat Islands b

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3

Maglangit, Erl Pfian T., Riza Jane C. Tapdasan, Jr. Rico C. Medija, et al. "New distribution record, ecology and tail trifurcation of Cyrtodactylus mamanwa (Gekkonidae) on Dinagat Islands, Philippines." Herpetozoa 34, no. () (2021): 175–81. https://doi.org/10.3897/herpetozoa.34.e67196.

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This study highlights the ecology, natural history, and a new distribution record by providing a unique habitat occurrence record in karst ecosystem and describes a tail anomaly of the endemic Mamanwa Bent-toed Gecko Cyrtodactylus mamanwa in the province of Dinagat. The detection of a new population on Unib Island in the southwestern Dinagat extends the previously known distribution of this gekkonid by approximately 100 km south from its known distribution.

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Maglangit, Erl Pfian T., Riza Jane C. Tapdasan, Rico C. Medija Jr., et al. "New distribution record, ecology and tail trifurcation of Cyrtodactylus mamanwa (Gekkonidae) on Dinagat Islands, Philippines." Herpetozoa 34 (September 2, 2021): 175–81. http://dx.doi.org/10.3897/herpetozoa.34.e67196.

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This study highlights the ecology, natural history, and a new distribution record by providing a unique habitat occurrence record in karst ecosystem and describes a tail anomaly of the endemic Mamanwa Bent-toed Gecko Cyrtodactylus mamanwa in the province of Dinagat. The detection of a new population on Unib Island in the southwestern Dinagat extends the previously known distribution of this gekkonid by approximately 100 km south from its known distribution.

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Paymalan, Irmalyn, and Elben Joy B. Erno. "Status, Challenges and Directions of Research Involvement of Teachers: A Baseline Study for Research and Development Intervention Program in Dinagat Division." IJRDO- Journal of Educational Research 5, no. 4 (2020): 14–35. http://dx.doi.org/10.53555/er.v5i4.3109.

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DepEd through DepEd Order No. 65, s. 2003mandates the institutionalization of the research-based decision and policy making in the department. Nevertheless, in remote areas like Dinagat Islands, only few teachers, both in public and private schools, were involved in research. As baseline study for the research and development intervention program of Dinagat Division, this study aimed to find out the status, challenges and directions of research involvement of private and public school teachers in the Division of Dinagat Islands. Specifically, the study sought data on the profile of the private

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Fernando, Edwino S., J. Peter Quakenbush, Edgardo P. Lillo, and Perry S. Ong. "Medinilla theresae (Melastomataceae), a new species from ultramafic soils in the Philippines." PhytoKeys 113 (December 11, 2018): 145–55. http://dx.doi.org/10.3897/phytokeys.113.30027.

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A new species, Medinillatheresae Fernando, from ultramafic soils on Dinagat and Mindanao Islands, Philippines is described and illustrated. The species is characterized by its terrestrial erect habit, non-setose nodes, 3-plinerved, lanceolate and coriaceous leaves arranged in whorls, cauline or axillary and pendulous inflorescences, rounded flower buds, 4-merous flowers, and straight anthers. It is compared with other similar species in the Medinillapendula Merr. complex.

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Fernando, Edwino S., J. Peter Quakenbush, Edgardo P. Lillo, and Perry S. Ong. "Medinilla theresae (Melastomataceae), a new species from ultramafic soils in the Philippines." PhytoKeys 113 (December 11, 2018): 145–55. https://doi.org/10.3897/phytokeys.113.30027.

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A new species, Medinilla theresae Fernando, from ultramafic soils on Dinagat and Mindanao Islands, Philippines is described and illustrated. The species is characterized by its terrestrial erect habit, non-setose nodes, 3-plinerved, lanceolate and coriaceous leaves arranged in whorls, cauline or axillary and pendulous inflorescences, rounded flower buds, 4-merous flowers, and straight anthers. It is compared with other similar species in the Medinilla pendula Merr. complex.

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Barrientos, M. A., J. A. Gabo-Ratio, T. Yamada, K. Jabagat, A. M. Francisco, and K. Yonezu. "Co, Sc, and Ni enrichment in the Cagdianao nickel laterite deposit, Dinagat Islands, Philippines." IOP Conference Series: Earth and Environmental Science 1373, no. 1 (2024): 012041. http://dx.doi.org/10.1088/1755-1315/1373/1/012041.

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Abstract Nickel laterites are soils that are derived from the weathering of mafic and ultramafic rocks. These deposits are being extracted mostly for their economic Ni and Fe content. However, in recent studies, the potential of nickel laterites to hold significant amounts of critical metals such as Sc and Co are already being investigated. In the Philippines, nickel laterite deposits form through the weathering of ophiolitic units. One of these is the Cagdianao nickel laterite deposit which was derived from the weathering of the ultramafic units of the Dinagat Ophiolite Complex in Dinagat Isl

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Mapatac, Levitah, Natividad Mamaoag, Cristina Cubillas, and Jemima Mahal Dalago. "PHYTOCHEMICAL SCREENING AND CYTOTOXICITY LEVEL OF MACROALGAE IN LORETO, DINAGAT ISLAND, PHILIPPINES." BIMP-EAGA Journal for Sustainable Tourism Development 4, no. 2 (2015): 121–31. http://dx.doi.org/10.51200/bimpeagajtsd.v4i2.3193.

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The use of macroalgae as a substitute for synthetic drugs is gaining popularity. Macroalgae is a simple and fascinating species that is a treasure chest of natural chemicals and beneficial ingredients and can be found in some areas of the marine environment. This study was undertaken to evaluate the toxicity effect through brine shrimp bioassay and presence of the secondary metabolites through phytochemical screening of ethanolic extract in selected macroalgae collected along the intertidal zone in selected areas of the Barangays in Loreto Dinagat Islands. A total of ten macroalgae were collec

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ROBINSON, ALASTAIR S., SARAH GRACE ZAMUDIO, and ROLLY BALAGON CABALLERO. "Nepenthes erucoides (Nepenthaceae), an ultramaficolous micro-endemic from Dinagat Islands Province, northern Mindanao, Philippines." Phytotaxa 423, no. 1 (2019): 21–32. http://dx.doi.org/10.11646/phytotaxa.423.1.3.

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A new species of Nepenthes—N. erucoides—is described and illustrated from a single ultramafic peak in the Dinagat Islands Province of northeastern Mindanao. It is a distinctive component of a relatively low-elevation, highly biodiverse montane elfin forest that has evolved in association with a particularly thin and extremely hostile substrate. Plant habit, and leaf, inflorescence, indumentum and peristome-column morphology appear superficially similar to those of the ultramaficolous montane species of Palawan, implicating an environmental basis for a syndrome of shared characteristics.

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Bilocura, Edson B., Allyssa Lloyd Kimberly F. Mariscal, Anarose E. Gamot, Zaire Shean Samillano, and July J. Cabalquinto. "Assessment of Basic Computer Skills of the Alternative Learning System (ALS) Learners." Cognizance Journal of Multidisciplinary Studies 3, no. 9 (2023): 154–64. http://dx.doi.org/10.47760/cognizance.2023.v03i09.010.

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Lack of instructional materials like computers was determined as one of the problems the ALS itself has faced therefore, this study objectified the basic computer skills among Alternative Learning System (ALS) Learners in San Jose, Dinagat Islands. 51 ALS learners comprised the respondents’ group and the assessment was conducted at Sta. Cruz, San Jose, Dinagat Islands. Results revealed that majority of the ALS learners had good knowledge of operating Windows, while a large percentage of them cannot effectively operate the Microsoft Word software with little to no knowledge of creating and edit

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Edson, B. Bilocura, Lloyd Kimberly F. Mariscal Allyssa, E. Gamot Anarose, Shean Samillano Zaire, and J. Cabalquinto July. "Assessment of Basic Computer Skills of the Alternative Learning System (ALS) Learners." Cognizance Journal of Multidisciplinary Studies (CJMS) 3, no. 9 (2023): 154–64. https://doi.org/10.47760/cognizance.2023.v03i09.010.

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<em>Lack of instructional materials like computers was determined to be one of the problems the ALS itself has faced; therefore, this study examined the basic computer skills of Alternative Learning System (ALS) learners in San Jose, Dinagat Islands. 51 ALS learners comprised the respondents’ group, and the assessment was conducted at Sta. Cruz, San Jose, and Dinagat Islands. Results revealed that the majority of the ALS learners had good knowledge of operating Windows, while a large percentage of them could not effectively operate the Microsoft Word software with little to no knowledge

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13

Sanguila, Marites B., Kerry A. Cobb, Cameron D. Siler, Arvin C. Diesmos, Angel C. Alcala, and Rafe M. Brown. "The amphibians and reptiles of Mindanao Island, southern Philippines, II: the herpetofauna of northeast Mindanao and adjacent islands." ZooKeys 624 (October 17, 2016): 1–132. https://doi.org/10.3897/zookeys.624.9814.

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We summarize all available amphibian and reptile species distribution data from the northeast Mindanao faunal region, including small islands associated with this subcenter of endemic vertebrate biodiversity. Together with all publicly available historical information from biodiversity repositories, we present new data from several major herpetological surveys, including recently conducted inventories on four major mountains of northeast Mindanao, and adjacent islands of Camiguin Sur, Dinagat, and Siargao. We present species accounts for all taxa, comment on unresolved taxonomic problems, and

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Durango, Rhea Grace, and Kristopher Ngilangil. "Voices From the Classroom: Lived Realities of Multigrade Teachers in Tubajon District, Dinagat Islands." Psychology and Education: A Multidisciplinary Journal 43, no. 1 (2025): 1–9. https://doi.org/10.70838/pemj.430101.

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This phenomenological study explored the lived realities of multigrade teachers in Tubajon District, Dinagat Islands. Anchored on the ART (Adaptation, Resilience, and Thriving) Framework of Resilience, the study employed Colaizzi’s descriptive phenomenological method to uncover the essence of these teachers’ experiences. Analysis of interview data revealed nine theme clusters, which were further grouped into three major themes: the complex demands of multigrade teaching, growth and fulfillment in multigrade teaching, and strategies for effective multigrade teaching. Findings revealed that mult

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15

NICKRENT, DANIEL L., and MARK GREGORY Q. RULE. "An evaluation of the genus Cyne (Loranthaceae) including a new species and rediscovery and neotypification of the rare C. quadriangula." Phytotaxa 558, no. 1 (2022): 67–80. http://dx.doi.org/10.11646/phytotaxa.558.1.4.

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A new species of Cyne (Loranthaceae) from Bucas Grande and Dinagat Islands, Philippines is described and named C. barcelonae in honor of the Filipina botanist Julie F. Barcelona. Phylogenetic analysis using the complete nuclear ribosomal DNA cistron confirms it is sister to C. banahaensis, the only species among the six in the genus with complete descriptions of floral morphology. The species is similar to the rare C. perfoliata of Papua New Guinea by having connate-perfoliate upper leaves but differs from others in the genus by possessing palmate leaf venation, inflorescences lacking an operc

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16

Hara, Tamiki. "Beyond Personalistic Politics: A Progressive Congresswoman’s Challenge to a Political Dynasty in Dinagat Islands, Philippines." Philippine Political Science Journal 42, no. 1 (2021): 30–55. http://dx.doi.org/10.1163/2165025x-bja10014.

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Abstract Political dynasties remain powerful in Philippine politics to this day. However, in recent years, the Philippines has experienced some significant transformations in the realm of traditional politics. Some politicians have emerged at the local level willing to confront those supported by dynastic politics. Since most literature on Philippine politics have emphasized the durability of elite domination, such changes have not yet been fully studied. This article addresses how progressive politics evolves in contention with a political dynasty based on a qualitative, exploratory case stud

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Meriam Makinano - Santillan, Arnaldo C. Gagula, Stephanie Mae Salcedo – Albores, et al. "Combined Hydrological and Geologic Assessment for Sustainable Management of the Sambunotan Watershed, Dinagat Islands, Philippines." Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES) 10 (October 17, 2024): 956–63. http://dx.doi.org/10.5109/7323375.

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18

ADORADOR, JIRO T., ZHEREELEEN D. MENESES, and EDWINO S. FERNANDO. "Pinanga gruezoi (Arecaceae), a new slender clustering palm from the Philippines with notes on an amended description of P. samarana." Phytotaxa 429, no. 2 (2020): 120–34. http://dx.doi.org/10.11646/phytotaxa.429.2.3.

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We describe a new species of Pinanga, P. gruezoi, from the islands of Samar, Bucas Grande, Dinagat, and (northeastern) Mindanao, Philippines. It is a diminutive slender clustering palm with pluricostulate coriaceous leaflets, rather few, short and arching to reflexed rachillae, which bear relatively large distichously arranged and closely-set ovoid-ellipsoidal fruits. Additionally, we rediscovered P. samarana, hitherto known from type material that was first collected more than a century ago, and provided an amended description based on recent collections and field observations. Discussions on

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Oposa, Zealy Ace A., Angielou V. Loquez, Hazel B. Montalba, Alvin J. Sumampong, Nescile Jake B. Ganto, and Liza L. Chua. "IMPLEMENTATION OF TRAVEL RESTRICTION ORDER IN THE LIVING CONDITION OF DINAGATNONS IN POBLACION DINAGAT ISLANDS, PHILIPPINES." Cognizance Journal of Multidisciplinary Studies 3, no. 6 (2023): 471–84. http://dx.doi.org/10.47760/cognizance.2023.v03i06.032.

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Travel restrictions are regulations or policies implemented by authorities that restrict or limit the movement of individuals, often in response to emergencies, health crises, or security threats. The study focused on Implementation of Travel Restriction order in the living condition of Dinagatnons in Poblacion Dinagat Islands, Philippines. The study utilized descriptive-survey research design. There were 100 motorbanca captain, crew, owner, driver, retail store owner and wholesale store owner. Frequency Count and Percentage Distribution, Mean and Standard Deviation, Analysis of Variance (ANOV

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Zealy, Ace A. Oposa, V. Loquez Angielou, B. Montalba Hazel, J. Sumampong Alvin, Jake B. Ganto Nescile, and L. Chua Liza. "IMPLEMENTATION OF TRAVEL RESTRICTION ORDER IN THE LIVING CONDITION OF DINAGATNONS IN POBLACION DINAGAT ISLANDS, PHILIPPINES." Cognizance Journal of Multidisciplinary Studies (CJMS) 3, no. 6 (2023): 471–84. https://doi.org/10.47760/cognizance.2023.v03i06.032.

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Travel restrictions are regulations or policies implemented by authorities that restrict or limit the movement of individuals, often in response to emergencies, health crises, or security threats. The study focused on Implementation of Travel Restriction order in the living condition of Dinagatnons in Poblacion Dinagat Islands, Philippines. The study utilized descriptive-survey research design. There were 100 motorbanca captain, crew, owner, driver, retail store owner and wholesale store owner. Frequency Count and Percentage Distribution, Mean and Standard Deviation, Analysis of Variance (ANOV

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Cabrera, Gian Carla D., Alma P. Gamboa, Eric John D. Capito, and Alfonso Victorino H. Famaran. "The Taal Volcano Eruption and Landfall of Super Typhoon Odette: A Dilogy of Disasters in the Philippines, An Abstract on the Response Strategies of Dr. Jose N. Rodriguez Memorial Hospital and Sanitarium-Philippine Emergency Medical Assistance Team (DJNRMHS PEMAT) for the TAAL and DINAGAT Missions in the Years 2020 and 2021." Prehospital and Disaster Medicine 37, S2 (2022): s92. http://dx.doi.org/10.1017/s1049023x22001911.

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Background/Introduction:The country’s location makes it vulnerable to natural disasters, hence, the PEMAT’s potential was tested during local disaster response for Taal Volcano Eruption in Batangas last January 2020 and during the aftermath of Super Typhoon Odette in Dinagat Islands last December 2021, amidst COVID-19 surge.Objectives:The primary objective of the deployment was to augment the DOH in the provision of safe, effective, and efficient quality health care services appropriate to the victims’ needs, timely, and coordinated mobilization of DJNRMHS PEMAT, and to evaluate the knowledge

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Maglangit, Erl Pfian T., Jason Jon Joshua B. Paraguya, Rae Mar T. Maglangit, Olga M. Nuñeza, Mae Lowe L. Diesmos, and Arvin C. Diesmos. "Novel cave habitat used by the cryptic lizard Pinoyscincus abdictus abdictus (Squamata: Scincidae) on Dinagat Islands, Philippines." Phyllomedusa: Journal of Herpetology 20, no. 1 (2021): 99–104. http://dx.doi.org/10.11606/issn.2316-9079.v20i1p99-104.

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Lazarte, Jessa Mae T., Connie Fern Miranda, Ruel S. Apas, et al. "Perceived Health Impacts of Surface Mining: Local Perspectives from the Mining Communities in Libjo, Dinagat Islands, Philippines." International Journal of Environmental Research and Public Health 22, no. 3 (2025): 365. https://doi.org/10.3390/ijerph22030365.

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This study examines the perceived health impacts of a mining company on residents of Libjo, Dinagat Islands, Philippines, addressing a critical research gap in understanding the perceived health impacts of mining activities in underrepresented regions. The perceived health impacts of mining operations were examined using a qualitative research approach, employing semi-structured interviews. The interview instrument was developed to investigate how mining company activities impact key health determinants, such as water quality, sanitation, income, employment, infrastructure, education, and wome

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24

Clarence, S. Aguillon. "Assessing residents willingness to pay and participate in tree planting at Brgy. Diegas, Basilisa, Province of Dinagat Island." Journal of Biodiversity and Environmental Sciences (JBES) 25, no. 2 (2024): 209–16. https://doi.org/10.5281/zenodo.15421068.

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The study aims to assess the residents’ willingness to pay and participate in tree planting activities in Brgy. Diegas, Basilisa, PDI. There are 295 random participants or respondents who had been interviewed in Brgy, Diegas with a total of 174 males and 121 females respectively. With the frequency and percent distribution across their demographic profile ages 21-30 had 43%, 31-40 had 39%, and 40 above which is 18% with this there are many of the ages 21-30 years old had been interviewed in the said Barangay. In the willingness to donate for tree planting the respondents wish to donate P

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Jay, T. Torrefiel, T. Sabanal Brian, Breech T. Cuta Chester, et al. "A detailed assessment of threats to tarsiers and its habitat: A case of Tarsiers Carlito syrichta (Linnaeus, 1758) in Hindang, Leyte." Journal of Wildlife and Biodiversity 7, no. X (2022): X. https://doi.org/10.5281/zenodo.7308755.

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The Philippine tarsier <em>Carlito syrichta </em>(Linnaeus, 1758) is considered a specially protected flagship species in the Philippines. However, the species is threatened due to natural disasters and human activities. Little is known about the ecology and existing threats of tarsier populations in some islands in the Philippines, particularly in Samar, Dinagat, Biliran, and Leyte. In this study, we report the existence of a population of tarsiers utilizing a karst forest patch in Hindang, Leyte, and characterize the habitat of the species after a super typhoon. Using field-based observation

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26

Meriam Makinano-Santillan, Michelle V. Japitana, Arnaldo C. Gagula, et al. "Land-cover Characterization and Water Quality Assessment of the Sambunotan Watershed, Dinagat Islands in Support of the Development of the Watershed Management Plan." Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES) 10 (October 17, 2024): 910–15. http://dx.doi.org/10.5109/7323368.

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Odtojan, Medielyn M., Sheila Mae B. Ancla, Eva A. Rellon, Joryne Mae P. Aying, Glynis Irene S. Buot, and Marialie M. Enecio. "Willingness to Pay for Recreational Benefits using Contingent Valuation: A Case Study of Lake Bababu." Journal of Social Responsibility,Tourism and Hospitality, no. 24 (June 13, 2022): 9–18. http://dx.doi.org/10.55529/jsrth.24.9.18.

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Dinagat Islands aimed to become the ecotourism center of the Caraga Region, in which Lake Bababu is one of its outstanding sites. Promotion of its ecotourism with much consideration on its sustainable ecological conservation. Hence, this study focused on the economic valuation of Lake Bababu through a Contingent Valuation Method by determining the respondents’ Willingness To Pay (WTP) for the protection and conservation of the area. A dichotomous iterative approach was applied to get the maximum willingness to pay of the tourists. A total of 357 tourists were interviewed based on the 4,884 tot

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Tangcalagan, Dave, Chona Daga, Alvin Tan, et al. "The 2013-2015 Nationwide Prevalence Survey of Soil-Transmitted Helminths (STH) and Schistosomiasis among School-Age Children in Public Schools in the Philippines." Pediatric Infectious Disease Society of the Philippines Journal 23, no. 1 (2022): 75–96. http://dx.doi.org/10.56964/pidspj20222301010.

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Objectives: The Department of Health (DOH) aims to reduce the prevalence of intestinal parasitism and proportion of heavy intensity of infection in the country by 2022. Among the interventions is school-based mass drug administration (MDA). Regular assessment of MDA gives guidance to the DOH. The aim of this survey was to determine the prevalence of soil transmitted helminthiasis and histosomiasis among public school children ages 5 to 16 years old. Methodology: A cross-sectional, school-based study using multi-stage stratified cluster sampling was conducted from 2013 to 2015, covering the Nat

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Petallar, Charlito Jr G., and Carmelin P. Mosa. "Perception on the use of graphic organizer in teaching English for academic professional purposes." International Journal of English Literature and Social Sciences 10, no. 4 (2025): 188–220. https://doi.org/10.22161/ijels.104.30.

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This study explored the perceptions of teachers and students on the use of digitized graphic organizers in teaching English for Academic and Professional Purposes (EAPP) among Senior High School learners in four public schools in Cagdianao, Dinagat Islands. Specifically, it aimed to describe the respondents’ demographic profiles, assess their knowledge, attitudes, and practices (KAP) toward graphic organizers, determine significant differences based on profile variables, and identify perceived advantages and disadvantages of their use. Utilizing a descriptive research design, the study involve

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Emin, ATASOY, ATIŞ Evren, and Gaukhar KONYSPAEVNA Baubekova. "The Republic of the Philippines from the Perspective of Geography of Countries." NTERNATIONAL JOURNAL OF HUMANITIES AND ART RESEARCH 8, no. 3 (2023): 261–93. https://doi.org/10.5281/zenodo.8350637.

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The Republic of the Philippines, which is the most populous Catholic Christian population of the Asian continent, is both a Southeast Asian country and an archipelago, a Monsoon and ASEAN country, and a Pacific state surrounded by the Pacific Ocean waters. This ocean country, which does not possess land borders, consists of 7641 islands. The islands of Luzon, Negros, Mindanao, Palawan, Cebu, Panay and Samar constitute the country's largest ones in terms of both area and population. Nevertheless, Bohol, Boracay, Siargao, Samal, Camiguin, Cebu, Siquijor, Malapascua, Bantayan, Coron, Panglao

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Ordas, Jorge Anton D., Yen-Ting Chen, Eiana Joshier A. Odulio, Genea Nichole G. Cortez, Sarah Grace S. Zamudio, and Niña Kathryn G. Alfeche. "Two new species of Psychotria L. (Psychotrieae-Rubiaceae) from Dinagat Island, Philippines." Webbia 80, no. 1 (2025): 67–76. https://doi.org/10.36253/jopt-17036.

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Psychotria alejandroi and P. nitidifolia, two new species from Dinagat Island, Philippines, are described and illustrated. Both species belong to the Pilosella species group sensu Sohmer and Davis (2007), characterized by inflorescences with defined axes bearing sessile flowers and fruits. Psychotria alejandroi is similar to P. pilosella but can be distinguished by having truncate, lobed stipules with its inner lobes extending into long aristae, lanceolate to narrowly ovate leaves that are coriaceous and scabrous, longer inflorescences (2–4 cm long), bracts with entire margins, 5- to 6-merous

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Tamayo, Maverick, Edwino Fernando, and Peter Fritsch. "VACCINIUM COARCTATUM (ERICACEAE), AN ULTRAMAFIC-OBLIGATE NEW SPECIES FROM THE DWARF FOREST OF MOUNT REDONDO, DINAGAT ISLAND, PHILIPPINES." Edinburgh Journal of Botany 80, no. 1960 (2023): 1–12. https://doi.org/10.24823/EJB.2023.1960.

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Tamayo, Maverick, Fernando, Edwino, Fritsch, Peter (2023): VACCINIUM COARCTATUM (ERICACEAE), AN ULTRAMAFIC-OBLIGATE NEW SPECIES FROM THE DWARF FOREST OF MOUNT REDONDO, DINAGAT ISLAND, PHILIPPINES. Edinburgh Journal of Botany 80 (1960): 1-12, DOI: 10.24823/EJB.2023.1960, URL: http://dx.doi.org/10.24823/ejb.2023.1960

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Lee, Young June, David C. Marshall, Alma Mohagan, and Kathy B. R. Hill. "Cicadas (Hemiptera: Cicadidae) from Camiguin of Mindanao Province and Dinagat Island in the Philippines, with a new genus and three new species." Zootaxa 4097, no. 2 (2016): 187–202. https://doi.org/10.11646/zootaxa.4097.2.2.

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Lee, Young June, Marshall, David C., Mohagan, Alma, Hill, Kathy B. R. (2016): Cicadas (Hemiptera: Cicadidae) from Camiguin of Mindanao Province and Dinagat Island in the Philippines, with a new genus and three new species. Zootaxa 4097 (2): 187-202, DOI: 10.11646/zootaxa.4097.2.2

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Amoroso, Victor B., Mescel S. Acola, Maria Melanie M. Guiang, Florfe M. Acma, Peter W. Fritsch, and Fulgent P. Coritico. "A new species of grass fern, Schizaea erecta (Schizaeaceae), from Dinagat Island, Mindanao, Philippines." Phytotaxa 618, no. 3 (2023): 265–73. https://doi.org/10.11646/phytotaxa.618.3.4.

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Amoroso, Victor B., Acola, Mescel S., Guiang, Maria Melanie M., Acma, Florfe M., Fritsch, Peter W., Coritico, Fulgent P. (2023): A new species of grass fern, Schizaea erecta (Schizaeaceae), from Dinagat Island, Mindanao, Philippines. Phytotaxa 618 (3): 265-273, DOI: 10.11646/phytotaxa.618.3.4, URL: http://dx.doi.org/10.11646/phytotaxa.618.3.4

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AMOROSO, VICTOR B., MESCEL S. ACOLA, MARIA MELANIE M. GUIANG, FLORFE M. ACMA, PETER W. FRITSCH, and FULGENT P. CORITICO. "A new species of grass fern, Schizaea erecta (Schizaeaceae), from Dinagat Island, Mindanao, Philippines." Phytotaxa 618, no. 3 (2023): 265–73. http://dx.doi.org/10.11646/phytotaxa.618.3.4.

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Schizaea erecta Amoroso & Coritico (Schizaeaceae) from Dinagat Island, Mindanao, Philippines, is here described. This species is distinguished from other species of Schizaea by its consistently erect sterile and fertile fronds, narrow laminae, opposite sorophore lobes, rhizomes covered with short appressed brown scales, and oblong sporangia with apical annulus and conspicuous long, white hairs. A taxonomic key to the species of Philippine Schizaeaceae is provided.

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Řeháková, Milada, Václav Řehák, and William L. R. Oliver. "Rediscovery of the Dinagat Bushy-tailed Cloud Rat Crateromys australis (Musser, Heaney & Rabor, 1985) (Mammalia: Rodentia: Muridae) from Dinagat Island, Philippines." Journal of Threatened Taxa 7, no. 8 (2015): 7428–35. http://dx.doi.org/10.11609/jott.o4226.7428-35.

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Lillo, Edgardo P., Edwino S. Fernando, and Mary Jane R. Lillo. "Plant diversity and structure of forest habitat types on Dinagat Island, Philippines." Journal of Asia-Pacific Biodiversity 12, no. 1 (2019): 83–105. http://dx.doi.org/10.1016/j.japb.2018.07.003.

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Tamayo, Maverick, Edwino Fernando, and Peter Fritsch. "VACCINIUM COARCTATUM (ERICACEAE), AN ULTRAMAFIC-OBLIGATE NEW SPECIES FROM THE DWARF FOREST OF MOUNT REDONDO, DINAGAT ISLAND, PHILIPPINES." Edinburgh Journal of Botany 80 (May 19, 2023): 1–12. http://dx.doi.org/10.24823/ejb.2023.1960.

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A new species of blueberry, Vaccinium coarctatum M.N.Tamayo & Fernando, from the dwarf forest on ultramafic soil of Dinagat Island, Philippines, is described. It closely resembles Vaccinium hamiguitanense P.W.Fritsch but is distinct from that species in having a longer inflorescence, shorter pedicels, longer and persistent bracteoles, white-hirsutulous calyx lobes, and shorter anther spurs. This discovery brings the number of Vaccinium species known from the Philippines to 41. A key to the small-leaved Vaccinium in the Philippines is provided.

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Stankovic, Stevan. "Regional geography of the professor Borivoje Z. Milojevic." Glasnik Srpskog geografskog drustva 86, no. 2 (2006): 19–28. http://dx.doi.org/10.2298/gsgd0602019s.

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Borivoje Z. Milojevic was born on December 22, 1885, in Carina near Krupanja (Serbia). He died on 22. October, 1967, in Belgrade. He developed methodology and set up the foundation of regional geography in Serbia. This is author books Radjevina and Jadar, Pester and Sjenica, Dinara Littoral and Islands, High Mountains in our kingdom, Main Valleys in Yugoslavia, Durmitor Mt., Bay of Boka Kotorska, Loess of Banat, General regional geography.

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LEE, YOUNG JUNE, DAVID C. MARSHALL, ALMA MOHAGAN, and KATHY B. R. HILL. "Cicadas (Hemiptera: Cicadidae) from Camiguin of Mindanao Province and Dinagat Island in the Philippines, with a new genus and three new species." Zootaxa 4097, no. 2 (2016): 187. http://dx.doi.org/10.11646/zootaxa.4097.2.2.

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Brown, Rafe M., Utpal Smart, Alan E. Leviton, and Eric N. Smith. "A New Species of Long-glanded Coralsnake of the GenusCalliophis(Squamata: Elapidae) from Dinagat Island, with Notes on the Biogeography and Species Diversity of PhilippineCalliophisandHemibungarus." Herpetologica 74, no. 1 (2018): 89–104. http://dx.doi.org/10.1655/herpetologica-d-17-00008.

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Shabrina, Alifah Talitha, and Asep Yudha Wirajaya. "Perbandingan Karakteristik Ilustrasi Naskah Syair Saiban dan Zainab Asyamiyah dan Ghayat al-Muna: Sebuah Kajian Kodikologi." Jumantara: Jurnal Manuskrip Nusantara 10, no. 2 (2020): 111. http://dx.doi.org/10.37014/jumantara.v10i2.584.

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Syair Saiban and Zainab Asyamiyah (hereinafter abbreviated as SSZA) is one of the texts contained in the anthology text entitled ""Bahwa Inilah Kitab Yang Dinamai Akan Dia Gemala Mestika Pada Menyatakan Membahagi Pusaka". This manuscript is stored in the British Library with an inventory code EAP153-6-2. SSZA is a Malay text that is assumed to be the result of translation from Arabic texts. This SSZA text was finished copying on Penyengat Island, with a thickness of 18 pages. This SSZA text contains guidance on husband and wife relationships that are bound in a legal marriage. However, the pre

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Villancio, Gil Gabriel, Renz Angelo Duco, Gerald Labiano, et al. "Volant and Small Non-volant Mammals of Dinagat Island, Philippines." Philippine Journal of Science 150, S1 (2021). http://dx.doi.org/10.56899/150.s1.33.

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The Philippine province of Dinagat Islands supports a huge array of flora and fauna with a high rate of endemism, including three species of mammals found nowhere else in the world. However, anthropogenic activities such as mining are rampant on the island and present a grave threat to the island’s unique biodiversity. We conducted a survey of volant and small non-volant mammals in selected municipalities of Dinagat Islands to contribute to the current understanding of Philippine mammalian fauna. A total of 17 species of volant mammals were recorded among 420 individuals captured in mist nets,

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SALAMANES, JULIUS JOHN DP, JHAYSON MARK J. SANTOS, ELEANOR S. AUSTRIA, and GIL GABRIEL S. VILLANCIO. "Short Communication: A new species of tarantula of the genus Orphnaecus Simon, 1892 (Araneae: Theraphosidae) from the Province of Dinagat Islands, Philippines." Biodiversitas Journal of Biological Diversity 23, no. 8 (2022). http://dx.doi.org/10.13057/biodiv/d230852.

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Abstract. Salamanes JJDP, Santos JMJ, Austria ES, Villancio GGS. 2022. Short Communication: A new species of tarantula of the genus Orphnaecus Simon, 1892 (Araneae: Theraphosidae) from the Province of Dinagat Islands, Philippines. Biodiversitas 23: 4283-4288. Orphnaecus adamsoni sp. nov., a new species of tarantula of the genus Orphnaecus Simon, 1892 is described and illustrated based on the specimens collected from the Province of Dinagat Islands, Philippines. It closely resembles O. kwebaburdeos (Barrion-Dupo, Barrion & Rasalan, 2015). However, it can be easily distinguished by having a

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Repique-Calumba, Analyn, and Pilmore Causing. "Pilak-Dinagat: A localized workbook as supplemental material for teaching Asian literature." Pantao (International Journal of the Humanities and Social Sciences), 2025. https://doi.org/10.69651/pijhss0402256.

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This study focused on the evaluation and validation of a developed workbook to determine its appropriateness for teaching Filipino 9 (Asian Literature), specifically in the context of literary works from the Dinagat Islands. The objective was to develop a localized version of the Asian Literature module, as the researchers believe that this approach better addresses the cultural awareness and appreciation of students and the local community of Dinagat by integrating untold and undocumented local narratives. Through this research, the lessons are expected to create stronger connections with stu

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Senarillos, Tristan Luap, and Jayson Ibañez. "Notes on the Nest Architecture and Nest Site Characteristics of Mindanao Treeshrew (Tupaia everetti Thomas, 1892) from Dinagat Islands, Philippines." Philippine Journal of Science 152, no. 2 (2023). http://dx.doi.org/10.56899/152.02.18.

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The Mindanao treeshrew (Tupaia everetti Thomas, 1892) is an endemic non-volant mammal species found in the Mindanao Faunal Region in the Philippines. The nest architecture and nest site characteristics of T. everetti are described for the first time based on a single active nest documented from Dinagat Islands. The nest was on the ground, built inside a cavity of a dead pandan tree (Sararanga cf. philippinensis), and was surrounded by natural vegetation. This nest discovery is a valuable contribution to the minimal existing literature about this poorly studied species, which may be increasingl

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R. Andrin, Arnel, and Emmy Lou A. Borta. "Relative Abundance of Landed Fish Family: Scombridae in the Municipality of San Jose, Dinagat Islands, Philippines." International Journal of Innovative Science and Research Technology, June 13, 2025, 236–40. https://doi.org/10.38124/ijisrt/25jun439.

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Dinagat Island has rich marine biodiversity; however, little is known of these resources in scientific reports. Family Scombridae, comprising tunas, mackerels, and bonitos, plays a vital role in the food security, economic livelihoods, and ecological balance of tropical coastal communities. This study aimed to assess the species composition and relative abundance of landed Scombridae species in the Municipality of San Jose, Dinagat Islands, Philippines, from January to October 2024. A total of five species Katsuwonus pelamis, Rastrelliger kanagurta, Euthynnus affinis, Auxis thazard, and Thunnu

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Rhonajean O. Capison and Angielee G. Camarin. "Development and Acceptability of Blue Tongue Berry (Melastoma mahalabatricum) Wine." International Journal of Emerging Technologies and Innovative Research, July 13, 2025, 239–50. https://doi.org/10.48175/ijarsct-28323.

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This study was conducted to develop and evaluate the acceptability of Blue Tongue Berry Wine (Melastoma malabathricum) as an innovative local beverage in Dinagat, Dinagat Islands. Specifically, it assessed the sensory acceptability of three wine formulations, determined significant differences in sensory ratings across formulations, and analyze the physicochemical components of the most preferred wine. A quantitative research design was used with systematic sampling to select 120 participants. Data were analyzed using mean, standard deviation, MANOVA for repeated measures with Bonferroni’s tes

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Jed J. Ruales, Jeco, Darlo Novo M. Beltran, Ralph R. J. E. Rozano, Jess H. Jumawan, and Mark Arcebal K. Naive. "Alpinia spongioides (Zingiberaceae), a new species from Dinagat Islands, Philippines." Nordic Journal of Botany, February 11, 2025. https://doi.org/10.1111/njb.04642.

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Alpinia spongioides Naive, Ruales, Beltran & Rozano, is described here as a new species from Dinagat Islands, Philippines. The species belongs to Alpinia sect. Alpinia subsect. Presleia by having small flowers and quadrilobed labellum. It resembles Alpinia foxworthyi but differs by its puberulent ligule with ciliate margin, longer petiole, calyx, filament, as well as an ecristate anther. This paper provides a detailed description, colour plates, and information on its phenology, habitat and distribution, as well as a provisional conservation status assessment. The discovery of this species

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Pavo, Raymundo R., and Ma Himaya A. Tamayo-Guttierez. "Framing the Story of A Woman Politician in the Dinagat Islands, Philippines: A Post-Structural Analysis." Asia-Pacific Social Science Review 19, no. 4 (2019). http://dx.doi.org/10.59588/2350-8329.1264.

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