Reference health
Home Range of Yellow-Spotted Amazon River Turtles (Podocnemis unifilis) (Testudines: Podocnemididae) in the Trombetas River Biological Reserve, Pará, Brazil
1 of 25 checkable references need attention · checked 2026-07-21
At the dated check, the references listed below either did not resolve in Crossref or DataCite, or carried a retraction notice. Each one is shown with the registry record that put it there.
20 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.
References needing attention
does not resolve to a known work10.1007/978-1-4899-3324-9
The 24 checked references that resolve
resolves10.2744/ccab-14-01-2-10.1
Turtle Hotspots: An Analysis of the Occurrence of Tortoises and Freshwater Turtles in Biodiversity Hotspots, High-Biodiversity Wilderness Areas, and Turtle Priority Areas
resolves10.2307/1938423
Kernel Methods for Estimating the Utilization Distribution in Home‐Range Studies
resolves10.2744/1071-8443(2006)5[312:DOPUTP]2.0.CO;2
Diet of Podocnemis unifilis (Testudines, Podocnemididae) During the Dry Season in the Mamirauá Sustainable Development Reserve, Amazonas, Brazil
resolves10.1655/HERPETOLOGICA-D-12-00008
Population Structure of the Turtle<i>Podocnemis erythrocephala</i>in the Rio Negro Basin, Brazil
resolves10.2307/1564736
Food Habits of an Assemblage of Five Species of Turtles in the Rio Guapore, Rondonia, Brazil
resolves10.2744/1071-8443(2006)5[18:SMOPST]2.0.CO;2
Seasonal Movements of Podocnemis sextuberculata (Testudines: Podocnemididae) in the Mamirauá Sustainable Development Reserve, Amazonas, Brazil
resolves10.1163/15685381-00003047
Movement patterns and activity of the Brazilian snake-necked turtle Hydromedusa maximiliani (Testudines: Chelidae) in southeastern Brazil
resolves10.1163/156853808786230361
Polyandry in Podocnemis unifilis (Pleurodira; Podocnemididae), the vulnerable yellow-spotted Amazon River turtle
resolves10.1641/0006-3568(2000)050[0653:TGDORD]2.0.CO;2
The Global Decline of Reptiles, Déjà Vu Amphibians
resolves10.2307/2680056
Density and Linkage Estimators of Home Range: Nearest-Neighbor Clustering Defines Multinuclear Cores
resolves10.1643/CH-04024R1
Home Range and Seasonal Activity of Southern Spotted Turtles (Clemmys guttata): Implications for Management
resolves10.2307/1447847
Terrestrial Movements in Relation to Aestivation and the Annual Reproductive Cycle of Kinosternon leucostomum
resolves10.1139/z84-148
Significance of activity and movement in the yellow-bellied slider turtle (<i>Pseudemys scripta</i>)
resolves10.2744/CCB-0847.1
The Complex Linear Home Range Estimator: Representing the Home Range of River Turtles Moving in Multiple Channels
resolves10.2307/1564646
A Radiotelemetric Study of Activity and Movements of the Blanding's Turtle (Emydoidea blandingi) in Northeastern Illinois
resolves10.3854/crm.5.000.checklist.v7.2014
Turtles of the World, 7th Edition: Annotated Checklist of Taxonomy, Synonymy, Distribution with Maps, and Conservation Status.
The 20 references without a DOI — listed, not checked
no DOI — not checkedet al. "R: A language and environment for statistical computing." , (2014)
no DOI — not checkedR. Bernhard, "Dinâmica populacional de Podocnemis erythrocephala, no rio Ayuana, Amazonas, Brasil." , (2010)
no DOI — not checkedI. Ely, "movimento e habitat utilizado por Trachemys adiutrix Vanzolini, 1995 (Testudines, Emydidae) na região dos Pequenos Lençóis Maranhenses." , "Área de vida" (2008)
no DOI — not checkedet al. "ArcGIS 9.2." , (2006)
no DOI — not checkedet al. "ArcGIS 10.2.2." , ESRI (2014)
no DOI — not checkedA. Fachín-Terán, "Alimentação de cinco espécies de quelônios em Costa Marques, Rondônia-Brasil." , (1992)
no DOI — not checkedS. Famelli, "Área de vida, movimentação e seleção de habitat do cágado Hydromedusa maximiliani (Testudines: Chelidae) no Parque Estadual Carlos Botelho." , (2013)
no DOI — not checkedJ.W. Gibbons, "Herpetologica." 42, "Movement patterns among turtle populations: applicability to management of the desert tortoise." 104 (1986)
no DOI — not checkedM.L. Harless, A.D. Walde, D.K. Delaney, et al. "Herpetological Conservation and Biology." 5, "Sampling considerations for improving home range estimates of desert tortoises: effects of estimator, sampling regime, and sex." 374 (2010)
no DOI — not checkedet al. "Listagem de Unidades de Conservação—Reservas Biológicas." , (2009)
no DOI — not checkedet al. "Plano de manejo da Reserva Biológica do Rio Trombetas." , (2004)
no DOI — not checkedA. Jacob and R. Rudran , "Rádio-telemetria em estudos populacionais. In: Métodos de estudos em biologia da conservação e manejo da vida silvestre." 285 (2004)
no DOI — not checkedP.A. Jewell, "Play, Explotation, and Territoriality in Mammals." , "The concept of home range in mammals." 85 (1966)
no DOI — not checkedW. Junk, P. Bayley, R. Sparks, "Proceedings of the International Large River Symposium. Canadian Special Publications in Fisheries and Aquatic Sciences 103." , "The flood pulse concept in river-floodplain systems." 110 (1989)
no DOI — not checkedR.U. Leite, "Composição, distribuição, utilização de ambientes e variação sazonal na densidade de quelônios aquáticos do Lago Verde, Alter do Chão, Santarém, Pará, Brasil." , (2010)
no DOI — not checkedG.J. Marshall, "Marine Technology Society Journal." 32, "Crittercam: an animal-borne imaging and data logging system." 11 (1998)
no DOI — not checkedG. Moreira and R.C. Vogt "Abstracts of the 38th Annual Meeting Herpetologists League and the 33rd Annual Meeting of the Society for the Study of Amphibians and Reptiles." , "Movements of Podocnemis expansa before and after nesting in the Trombetas River, Brazil." 79 (1990)
no DOI — not checkedJ.V. Rueda-Almonacid, J.L. Carr, R.A. Mittermeier, et al. "Las tortugas y los crocodilianos de los paises andinos del trópico. Serie de guias tropicales de campo n° 6." , 538 (2007)
no DOI — not checkedM.M. De. Souza, "Movimentação e uso do ambiente por subadultos de Podocnemis expansa (Testudines, Podocnemididae) na Reserva Biológica do Rio Trombetas, Pará." , (2012)
no DOI — not checkedR.C. Vogt, "Amazon Turtles." , 104 (2008)
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