Reference health
Effectiveness of 20 Years of Conservation Investments in Protecting Orangutans
21/21 checkable references clean · checked 2026-09-23
Every reference with a DOI in the deposited reference list resolved to a known work in Crossref or DataCite at the dated check, and none carried a retraction, withdrawal, or removal notice.
81 without a DOI — not checked. A reference deposited without a DOI is never matched by title or guessed at; it stays outside the checked set, and this line discloses that.
The 21 checked references that resolve
resolves10.1016/j.cub.2018.01.053
Global Demand for Natural Resources Eliminated More Than 100,000 Bornean Orangutans
resolves10.1111/ddi.12286
Mapping perceptions of species' threats and population trends to inform conservation efforts: the Bornean orangutan case study
resolves10.1016/j.biocon.2019.108236
Cost-benefit based prioritisation of orangutan conservation actions in Indonesian Borneo
resolves10.1002/pan3.10072
Conservation and the social sciences: Beyond critique and co‐optation. A case study from orangutan conservation
resolves10.1038/s41893-020-00630-1
Impact of palm oil sustainability certification on village well-being and poverty in Indonesia
resolves10.3389/ffgc.2021.560944
Importance of Small Forest Fragments in Agricultural Landscapes for Maintaining Orangutan Metapopulations
resolves10.1016/j.gloenvcha.2017.08.002
Community forest management in Indonesia: Avoided deforestation in the context of anthropogenic and climate complexities
resolves10.1017/S0030605316000636
The roles of traditional knowledge systems in orang-utan<i>Pongo</i>spp. and forest conservation: a case study of Danau Sentarum, West Kalimantan, Indonesia
resolves10.1016/j.geoforum.2020.11.005
From rising water to floods: Disentangling the production of flooding as a hazard in Sumatra, Indonesia
resolves10.1080/00074911003642237
Indonesia's economic performance in comparative perspective and a new policy framework for 2049
resolves10.1023/A:1012033919441
Orangutan Home Range Size and Its Determinants in a Sumatran Swamp Forest
resolves10.1371/journal.pone.0011510
Recent Surveys in the Forests of Ulu Segama Malua, Sabah, Malaysia, Show That Orang-utans (P. p. morio) Can Be Maintained in Slightly Logged Forests
resolves10.1371/journal.pone.0018008
Why Don't We Ask? A Complementary Method for Assessing the Status of Great Apes
resolves10.1002/joc.5086
WorldClim 2: new 1‐km spatial resolution climate surfaces for global land areas
resolves10.1088/1748-9326/aac6f4
Evaluating the effectiveness of palm oil certification in delivering multiple sustainability objectives
resolves10.1016/j.worlddev.2019.04.012
Does oil palm agriculture help alleviate poverty? A multidimensional counterfactual assessment of oil palm development in Indonesia
The 81 references without a DOI — listed, not checked
no DOI — not checkedLand-cover changes predict steep declines for the Sumatran orangutan (Pongo abelii)
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no DOI — not checkedFirst integrative trend analysis for a great ape species in Borneo
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no DOI — not checkedRapid conversions and avoided deforestation: examining four decades of industrial plantation expansion in Borneo
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no DOI — not checkedConservation Action Classification
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no DOI — not checkedref30
no DOI — not checkedGeographic variation in behavioral ecology and conservation
no DOI — not checkedref33
no DOI — not checkedShifting apes: Conservation and welfare outcomes of Bornean orangutan rescue and release in Kalimantan
no DOI — not checkedref35
no DOI — not checkedProvincial Map
no DOI — not checkedGazetteer Data
no DOI — not checkedPeat Hydrological Area Map
no DOI — not checkedThe last frontiers of wilderness: Tracking loss of intact forest landscapes from
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no DOI — not checkedIndicative Map of Community Forestry Area (PIAPS)
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no DOI — not checkedKatingan Mentaya Project
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no DOI — not checkedMas estate (Tabin) (excluding PONGO Alliance)
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no DOI — not checkedStudi Perencanaan dan Penganggaran Bagi Pengelolaan Hutan Berbasis Masyarakat di Indonesia
no DOI — not checkedref88
no DOI — not checkedref89
no DOI — not checkedPrimate conservation
no DOI — not checkedref92
no DOI — not checkedProvincial Map
no DOI — not checkedGazetteer Data
no DOI — not checkedPeat Hydrological Area Map
no DOI — not checkedThe last frontiers of wilderness: Tracking loss of intact forest landscapes from
no DOI — not checkedEvaluating the effectiveness of palm oil certification in delivering multiple sustainability objectives
no DOI — not checkedref102
no DOI — not checkedFirst integrative trend analysis for a great ape species in Borneo
no DOI — not checkedLand-cover changes predict steep declines for the Sumatran orangutan (Pongo abelii)
no DOI — not checkedThe importance of orangutans in small fragments for maintaining metapopulation dynamics
no DOI — not checkedref109
no DOI — not checkedIndicative Map of Community Forestry Area (PIAPS)
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