Remote sensing analysis reveals habitat, dispersal corridors and expanded distribution for the Critically Endangered Cross River gorilla Gorilla gorilla diehli

ORYX

Volumn 46, Issue 2, 2012, Pages 278-289

  Bergl, Richard A ^a   Warren, Ymke ^b   Nicholas, Aaron ^b   Dunn, Andrew ^c   Imong, Inaoyom ^c   Sunderland Groves, Jacqueline L ^b,e   Oates, John F ^d  

^a North Carolina Zoological Park   (United States)

^b WILDLIFE CONSERVATION SOCIETY   (Cameroon)

^c Wildlife Conservation Society Nigeria   (Nigeria)

^d CITY UNIVERSITY OF NEW YORK   (United States)

^e CENTER FOR INTERNATIONAL FORESTRY RESEARCH   (Indonesia)

Author keywords

Cameroon; Cross River gorilla; forest; fragmentation; Gorilla gorilla diehli; Nigeria; range; remote sensing

Indexed keywords

ANTHROPOGENIC EFFECT; CONSERVATION GENETICS; DEMOGRAPHY; DISPERSAL; DISTURBANCE; ENDANGERED SPECIES; GENETIC DIFFERENTIATION; HABITAT CONSERVATION; HABITAT FRAGMENTATION; HABITAT LOSS; HABITAT TYPE; HOMINID; NATURAL RESOURCE; NEW RECORD; NEW SPECIES; POPULATION DISTRIBUTION; POPULATION SIZE; POPULATION STRUCTURE; PRESSURE EFFECT; REMOTE SENSING; SATELLITE DATA; STOCHASTICITY; TAXONOMY; TROPICAL FOREST; WILD POPULATION;

CAMEROON; CROSS RIVER [(RVR) WEST AFRICA];

GORILLA GORILLA; GORILLA GORILLA GORILLA;

EID: 84860836240     PISSN: 00306053     EISSN: 13653008     Source Type: Journal    
DOI: 10.1017/S0030605310001857     Document Type: Article

References (82)

1. ALVES , M.S., PIMM, S.L., ALLINE, S., RAPOSO, M.A., DE L. BROOKE, M., HARRIS, G. et al. (2008) Mapping and exploring the distribution of the Vulnerable grey-winged cotinga Tijuca condita. Oryx, 42, 562-566.
2. ANCRENAZ, M., AMBU, L., SUNJOTO, I., AHMAD, E., MANOKARAN, K., MEIJAARD, E. & LACKMAN, I. (2010) Recent surveys in the forests of Ulu Segama Malua, Sabah, Malaysia, show that orangutans (P. p. morio) can be maintained in slightly logged forests. PLoS One, 5(7), e11510.
3. ANDERSON, R.P., LEW, D. & PETERSON, A.T. (2003) Evaluating models of species' distributions: criteria for selecting optimal models. Ecological Modelling, 162, 211-232. (Pubitemid 36400305)
4. ATTWELL, C.A.M. & COTTERILL, F.P.D. (2000) Postmodernism and African conservation science. Biodiversity and Conservation, 9, 559-577. (Pubitemid 30397770)
5. BARNES, R.F.W. (1990) Deforestation in tropical Africa. African Journal of Ecology, 28, 161-173.
6. BERGL, R.A., BRADLEY, B.J., NSUBUGA, A.M. & VIGI LANT, L. (2008) Genetic effects of habitat fragmentation, population size and demographic history on primate populations: the Cross River gorilla in a comparative context. American Journal of Primatology, 70, 848-859.
7. BERGL, R.A., OATES, J.F. & FOTSO, R. (2007) Distribution and protected area coverage of endemic taxa in West Africa's Biafran forests and highlands. Biological Conservation, 134, 195-208. (Pubitemid 44809163)
8. BERGL, R.A. & VIGI LANT, L. (2007) Genetic analysis reveals population structure and recent migration within the highly fragmented range of the Cross River gorilla (Gorilla gorilla diehli). Molecular Ecology, 16, 501-516. (Pubitemid 46161076)
9. BOLGER, D.T., SCOTT, T.A. & ROTENBERRY, J.T. (2001) Use of corridor-like landscape structures by bird and small mammal species. Biological Conservation, 102, 213-224. (Pubitemid 32965056)
10. BOND, I., GRIEG-GRAN, M., WERTZ-KANOUNNIKOFF, S., HAZLEWOOD, P., WUNDER, S. & ANGELSEN, A. (2009) Incentives to Sustain Forest Ecosystem Services: A Review and Lessons for REDD. International Institute for Environment and Development, London, UK.
11. BOYD, D.S. & DUANE, W.J. (2001) Exploring spatial and temporal variation in the middle infrared reflectance measured from the tropical forests of West Africa. International Journal of Remote Sensing, 22, 1861-1878. (Pubitemid 32555001)
12. BROOKS, T., BALMFORD, A., BURGESS, N., FJ ELDSÅ, J., HANSEN, L.A., MOORE, J. et al. (2001) Towards a blueprint for conservation in Africa. BioScience, 51, 613-624.
13. BUCHANAN, G.M., BUTCHART, S.H.M., DUTSON, G., PILGRIM, J.D., STEININGER, M.K., BISHOP, K.D. & MAYAUX, P. (2008) Using remote sensing to inform conservation status assessment: estimates of recent deforestation rates on New Britain and the impacts upon endemic birds. Biological Conservation, 141, 56-66. (Pubitemid 350186285)
14. BUCKNELL, D. & GROVES, J.L. (2002) Local Perception of the Population Size, Distribution and Ranging Behaviour of the Cross River Gorilla within the Takamanda and Mone Forest Reserves and the Mbulu Forest, Cameroon. Wildlife Conservation Society Report, New York, USA.
15. CHAPMAN, C.A., LAWES, M. & EELEY, H.A.C. (2006) What hope for African primate diversity? African Journal of Ecology, 44, 116-133. (Pubitemid 43806419)
16. CLEMENTS, T. (2010) Reduced Expectations: the political and institutional challenges of REDD+. Oryx, 44, 309-310.
17. COWLISHAW, G. & DUNBAR, R.I.M. (2000) Primate Conservation Biology. University of Chicago Press, Chicago, USA.
18. CZECH, B. (2002) A transdisciplinary approach to conservation land acquisition. Conservation Biology, 16, 1488-1497. (Pubitemid 35456960)
19. EBELING, J. & YASUÉ, M. (2008) Generating carbon finance through avoided deforestation and its potential to create climatic, conservation and human development benefits. Philosophical Transactions of the Royal Society, B, 363, 1917-1924. (Pubitemid 351482532)
20. FAO (FOOD AND AGRICULTURE ORGANIZATION) (2010) Global Forest Resources Assessment 2010. Food and Agriculture Organization of the United Nations, Rome, Italy.
21. FAY, J.M. (1987) Report on the Participation of J. Michael Fay in the Takamanda Gorilla Survey Project. WWF-US, Washington, DC, USA.
22. FERRARO, P.J. & SIMPSON, R.D. (2002) The cost-effectiveness of conservation payments. Land Economics, 78, 339-353.
23. GLCF (2010) Global Land Cover Facility. Http://glcf.umiacs.umd.edu/ index.shtml [accessed 9 May 2011].
24. GREEN, K. (1986) Assessing primate habitat using Landsat technology. In Primate Ecology and Conservation (eds J. Else & P. Lee), Cambridge University Press, Cambridge, UK.
25. GUSTAFSON, E.J. & GARDNER, R.H. (1996) The effect of landscape heterogeneity on the probability of patch colonization. Ecology, 77, 94-107.
26. HANSEN, M., DEFRIES, R., TOWNSHEND, J.R., CARROLL, M., DIMICELI, C. & SOHLBERG, R. (2003) 500m MODIS Vegetation Continuous Fields version 1.0. The Global Land Cover Facility, College Park, USA.
27. HARCOURT, A.H. (1996) Is the gorilla a threatened species? How should we judge? Biological Conservation, 75, 165-176.
28. HARCOURT, A.H. & DOHERTY, D.A. (2005) Species-area relationships of primates in tropical forest fragments: a global analysis. Journal of Applied Ecology, 42, 630-637. (Pubitemid 41710786)
29. IMONG, I. (2005) 2005 Afi Mountain Census Report. Wildlife Conservation Society Biodiversity Research Programme, Calabar, Nigeria.
30. IMONG, I. & DUNN, A. (2005) A Gorilla Reconnaissance Survey of the Okwa Hills, Okwangwo Division, Cross River National Park. Wildlife Conservation Society Biodiversity Research Programme, Calabar, Nigeria.
31. IREMONGER, S., RAVILIOUS, C. & QUINTON, T. (1997) A Global Overview of Forest Conservation CD-ROM. World Conservation Monitoring Centre and Centre for International Forestry Research, Cambridge, UK.
32. ITE, U. & ADAMS, W. (2000) Expectations, impacts and attitudes: conservation and development in Cross River National Park, Nigeria. Journal of International Development, 12, 325-342 (Pubitemid 30306376)
33. IUCN (2010) IUCN Red List of Threatened Species v. 2010.4. Http:// www.iucnredlist.org [accessed 9 May 2011].
34. JOHNS, A. & SKORUPA, J. (1987) Responses of rainforest primates to habitat disturbance: a review. International Journal of Primatology, 8, 157-191.
35. KI S S, A. (2004a) Is community-based ecotourism a good use of biodiversity conservation funds? Trends in Ecology & Evolution, 19, 232-237.
36. KI S S, A. (2004b) Making biodiversity conservation a land-use priority. In Getting Biodiversity Projects to Work: Towards More Effective Conservation and Development (eds T.O. McShane & M.P. Wells), pp. 98-123. Columbia University Press, New York, USA.
37. KOBLER, A. & ADAMIC, M. (2000) Identifying brown bear habitat by a combined GIS and machine learning method. Ecological Modelling, 135, 291-300. (Pubitemid 32106144)
38. KÖNDGEN, S., KÜHL, H., N'GORAN, P.K., WALSH, P.D., SCHENK, S., ERNST, N. et al. (2008) Pandemic human viruses cause decline of endangered great apes. Current Biology, 18, 260-264.
39. KÜHL, H.F., MAISELS, F., ANCRENAZ, M. & WILLIAMSON, E.A. (2008) Best Practice Guidelines for Surveys and Monitoring of Great Ape Populations. IUCN/Species Survival Commission Primate Specialist Group, Gland, Switzerland.
40. KÜHL, H.F., NZEINGUI , C., LE DUCYENO, S., HUIJBREGTS, B., BOESCH, C. & WALSH, P.D. (2009) Discriminating between village and commercial hunting of apes. Biological Conservation, 142, 1500-1506.
41. LAPORTE, N., GOETZ, S., JUSTICE, C. & HEINICKE, M. (1998) A new land cover map for central Africa derived from multi-resolution, multi-temporal AVHRR data. International Journal of Remote Sensing, 19, 3537-3550. (Pubitemid 29147996)
42. LARKIN, J.L., MAEHR, D.S., HOCTOR, T.S., ORLANDO, M.A. & WHITNEY, K. (2004) Landscape linkages and conservation planning for the black bear in west-central Florida. Animal Conservation, 7, 1-12.
43. MAIN, M.B., ROKA, F.M. & NOSS, R.F. (1999) Evaluating costs of conservation. Conservation Biology, 13, 1262-1272.
44. MANSFIELD, A. (1908) Urwald Dokumente. Vier Jahre unter den Crossfluss-Negern Kameruns. Reimer, Berlin, Germany.
45. MARTINEZ-CRUZ, B., GODOY, A. & NEGRO, J.J. (2004) Population genetics after fragmentation: the case of the endangered Spanish imperial eagle (Aquila adalberti). Molecular Ecology, 13, 2243-2255. (Pubitemid 38946414)
46. MAYEAUX, P., RICHARDS, T. & JANODET, E. (1999) A vegetation map of central Africa derived from satellite imagery. Journal of Biogeography, 26, 353-366. (Pubitemid 29332310)
47. MBOH, H. & WARREN, Y. (2007) Large Mammal Survey of the proposed Takamanda National Park. Unpublished Report to the Wildlife Conservation Society and KfW. Report 2 in the July 2007 series. Wildlife Conservation Society Takamanda-Mone Landscape Project, Limbe, Cameroon.
48. MCDERMID, G.J., HALL, R.J., SANCHEZ-AZOFEIFA, G.A., FRANKLIN, S.E., STENHOUSE, G.B., KOBLIUK, T. & LEDREW, E.F. (2009) Remote sensing and forest inventory for wildlife habitat assessment. Forest Ecology and Management, 257, 2262-2269.
49. MCFARLAND, K.L. (2007) Ecology of Cross River Gorillas (Gorilla gorilla diehli) on Afi Mountain, Cross River State, Nigeria. PhD thesis, City University of New York Graduate Center, New York, USA.
50. MCGRAW, W.S. (2005) Update on the search for Miss Waldron's red colobus monkey (Procolobus badius waldroni). International Journal of Primatology, 26, 605-619. (Pubitemid 40850056)
51. MCNEILAGE, A., PLUMPTRE, A.J., BROCK-DOYLE, A. & VEDDER, A. (2001) Bwindi Impenetrable National Park, Uganda: gorilla census 1997. Oryx, 35, 39-47. (Pubitemid 32113810)
52. MILLER, L., SAVAGE, A. & GIRALDO, H. (2004) Quantifying remaining forested habitat within the historic distribution of the cotton-top tamarin (Saguinus oedipus) in Colombia: implications for long-term conservation. American Journal of Primatology, 64, 451-457. (Pubitemid 40118364)
53. MITTERMEIER, R.A., WALLIS, J., RYLANDS, A.B., GANZHORN, J., OATES, J.F., WILLIAMSON, E. et al. (eds) (2010) Primates in Peril: The World's 25 Most Endangered Primates 2008-2010. IUCN/Species Survival Commission Primate Specialist Group, Arlington, USA.
54. NAUGHTON-TREVES, N. & WEBER, W. (2001) Human dimensions of the African rainforest. In African Rain Forest Ecology and Conservation (eds W. Weber, L.J.T. White, A. Vedder & N. Naughton-Treves), pp. 30-43. Yale University Press, New Haven, USA.
55. NICHOLAS, A. (2009) Gorilla guardians gain momentum. Gorilla Journal, 39, 12-14.
56. NOSS, A.J. (1997) Challenges to nature conservation with community development in central African forests. Oryx, 31, 180-188. (Pubitemid 27353851)
57. OATES, J.F., ABEDI-LARTEY, M., MCGRAW, W.S., STRUHSAKER, T.T. & WHITESIDES, G.H. (2000) Extinction of a West African red colobus monkey. Conservation Biology, 14, 1526-1532.
58. OATES, J.F., BERGL, R.A. & LINDER, J.M. (2004) Africa's Gulf of Guinea Forests: Biodiversity Patterns and Conservation Priorities. Conservation International Center for Applied Biodiversity Science, Washington, DC, USA.
59. OATES, J.F., BERGL, R.A., SUNDERLAND-GROVES, J. & DUNN, A. (2008) Gorilla gorilla ssp. diehli. In IUCN Red List of Threatened Species v. 2010.4. Http://www.iucnredlist.org [accessed 9 May 2011].
60. OATES, J.F., MCFARLAND, K.L., GROVES, J.L., BERGL, R.A., LINDER, J.M. & DISOTELL, T.R. (2003) The Cross River gorilla: natural history and status of a neglected and critically endangered subspecies. In Gorilla Biology (eds A. Taylor & M.L. Goldsmith), 472-497. Cambridge University Press, Cambridge, UK.
61. OATES, J.F., SUNDERLAND-GROVES, J., BERGL, R.A., DUNN, A., NICHOLAS, N., TAKANG, E. et al. (2007) Regional Action Plan for the Conservation of the Cross River Gorilla (Gorilla gorilla diehli). IUCN Primate Specialist Group/Conservation International, Arlington, USA.
62. PATTANAVIBOOL, A. & DEARDEN, P. (2002) Fragmentation and wildlife in montane evergreen forests, northern Thailand. Biological Conservation, 107, 155-164. (Pubitemid 34635356)
63. PENCE, G.Q.K., BOTHA, M.A. & TURPIE, J.K. (2003) Evaluating combinations of on- and off-reserve conservation strategies for the Agulhas Plain, South Africa: a financial perspective. Biological Conservation, 112, 253-273. (Pubitemid 36572854)
64. PLUMPTRE, A.J., MCNEILAGE, A., HALL, J.S. & WI LLIAMSON, E. (2003) The current status of gorillas and threats to their existence at the beginning of a new millennium. In Gorilla Biology: A Multidisciplinary Perspective (eds A. Taylor & M. Goldsmith), pp. 414-431. Cambridge University Press, Cambridge, UK.
65. PLUMPTRE, A.J. & REYNOLDS, V. (1994) The effect of selective logging on the primate populations in the Budongo Forest Reserve. Journal of Applied Ecology, 31, 631-641.
66. POLLINI, J. (2009) Carbon sequestration for linking conservation and rural development in Madagascar: the case of the Vohidrazana- Mantadia Corridor Restoration and Conservation Carbon Project. Journal of Sustainable Forestry, 28, 322-342.
67. ROOD, E. & GANIE, A.A. (2010) Using presence-only modelling to predict Asian elephant habitat use in a tropical forest landscape: implications for conservation. Diversity and Distributions, 16, 975-984.
68. ROUGET, M., COWLING, R.M., LOMBARD, A.T., KNIGHT, A.T. & KERLEY, G.I.H. (2006) Designing large-scale conservation corridors for pattern and process. Conservation Biology, 20, 549-561.
69. RUSSON, A., ERMAN, A. & DENNIS, R. (2001) The population density of orang-utans (Pongo pygmaeus pygmaeus) in and around the Denau Sentarum Wildlife Reserve, West Kalimantan, Indonesia. Biological Conservation, 97, 21-28.
70. SCHADT, S., KNAUER, F., KACZENSKY, P., REVILLA, E., WI EGAND, T. & TREPL, L. (2002) Rule-based assessment of suitable habitat and patch connectivity for the Eurasian lynx. Ecological Applications, 12, 1469-1483. (Pubitemid 36516751)
71. SCHIØTZ, A. (1999) Treefrogs of Africa. Edition Chimaira, Frankfurt am Main, Germany.
72. SLAYBACK, D. (2003) Land cover change in the Takamanda Forest Reserve, Cameroon: 1986-2000. In Takamanda: The Biodiversity of an African Rainforest. (eds J.A. Comiskey, T. Sunderland & J.L. Sunderland-Groves), pp. 173-179. Smithsonian Institution, Washington, DC, USA.
73. SUNDERLAND, T.C.H., COMISKEY, J.A., BESONG, S., MBOH, H., FONWEBON, J. & DIONE, M.A. (2003) Vegetation survey of Takamanda Forest Reserve, Cameroon. In Takamanda: The Biodiversity of An African Rainforest (eds J.A. Comiskey, T.C.H. Sunderland & J.L. Sunderland-Groves), pp. 19-53. Smithsonian Institution, Washington, DC, USA.
74. SUNDERLAND-GROVES, J.L., EKINDE, A. & MBOH, H. (2009) Cross River gorilla (Gorilla gorilla diehli) nesting behaviour at Kagwene Mountain, Cameroon: implications for assessing group size, agestructure and density at other Cross River gorilla localities. International Journal of Primatology, 30, 253-266.
75. SUNDERLAND-GROVES, J.L., MAISELS, F. & EKINDE, A. (2003) Surveys of the Cross River gorilla and chimpanzee populations in Takamanda Forest Reserve, Cameroon. In Takamanda: The Biodiversity of an African Rainforest (eds J.A. Comiskey, T.C.H. Sunderland & J.L. Sunderland-Groves), pp. 129-140. Smithsonian Institution, Washington, DC, USA.
76. THALMANN, O., WEGMANN, D., SPITZNER, M., ARANDJ ELOVIC, M., GUSCHANSKI, K., LEUENBERGER, C. et al. (2011) Historical sampling reveals dramatic demographic changes in western gorilla populations. BMC Evolutionary Biology, 11, 85.
77. THOMAS, L., LAAKE, J.L., STRINDBERG, S., MARQUES, F.F.C., BUCKLAND, S.T., BORCHERS, D.L. et al. (2006) Distance 5.0 Release 2. Research Unit for Wildlife Population Assessment. University of St Andrews, St Andrews, UK.
78. USGS (2004) Shuttle Radar Topography Mission. Global Land Cover Facility. University of Maryland, College Park, USA.
79. VAN SCHAIK, C., MONK, K. & YARROW ROBERTSON, J. (2001) Dramatic decline in orang-utan numbers in the Leuser ecosystem, Northern Sumatra. Oryx, 35, 14-25. (Pubitemid 32113808)
80. WIKRAMANAYAKE, E., MCKNIGHT, M., DINERSTEIN, E., JOSHI, A., GURUNG, B. & SMITH, D. (2004) Designing a conservation landscape for tigers in human-dominated environments. Conservation Biology, 18, 839-844. (Pubitemid 38689105)
81. WILKIE, D.S. & LAPORTE, N. (2001) Forest area and deforestation in Central Africa: current knowledge and future directions. In African Rainforest Ecology and Conservation (eds W. Weber, L. White, A. Vedder & L. Naughton-Treves), pp. 119-139. Yale University Press, New Haven, USA.
82. WUNDER, S., ENGEL, S. & PAGIOLA, S. (2008) Taking stock: a comparative analysis of payments for environmental services programs in developed and developing countries. Ecological Economics, 65, 843-852.