Status of birds of prey in Guinea-Bissau: first assessment based on road surveysFootnote^§

§ This article is based on a paper presented at the 14th Pan-African Ornithological Conference, Dakar, Senegal, 16–21 October 2016 and is part of a special issue on vultures in memory of André Boshoff

References

• Altenburg W, van der Kamp J. 1983. Oiseaux d’eau dans les zones humides de la Mauritanie du Sud, du Senegal et de la Guinée-Bissau. Internal report. Leersum: Research Institute for Nature Management.
   Google Scholar
• Araújo A. 1994. A Importância ornitológica da Região da Cufada na Guiné-Bissau. Report. Lisbon: Instituto para a Conservação da Natureza.
   Google Scholar
• Biai J. 2015. Strategy and national action plan for the biodiversity 2015–2020. Bissau: Secretaria de Estado do Ambiente and Ministério da Agricultura e do Desenvolvimento Rural.
   Google Scholar
• Bibby CJ, Burgess ND, Hill DA. 2000. Bird census techniques. London: Elsevier.
   Google Scholar
• BirdLife International. 2016. Important Bird and Biodiversity Areas (IBAs). Available at http://wwwadditional-info/important-bird-and-biodiversity-areas-ibas [accessed 3 March 2016].
   Google Scholar
• Borrow N, Demey R 2014. Birds of western Africa (2nd edn). London: Christopher Helm.
   Google Scholar
• Buij R, Croes BM, Komdeur J. 2013a. Biogeographical and anthropogenic determinants of landscape-scale patterns of raptors in West African savannas. Biodiversity and Conservation 22: 1623–1646. doi: 10.1007/s10531-013-0498-0
   Web of Science ®Google Scholar
• Buij R, Folkertsma I, Kortekaas K, De Iongh HH, Komdeur J. 2013b. Effects of land-use change and rainfall in Sudano-Sahelian West Africa on the diet and nestling growth rates of an avian predator. Ibis 155: 89–101. doi: 10.1111/ibi.12006
   Web of Science ®Google Scholar
• Buij R, Nikolaus G, Whytock R, Ingram DJ, Ogada D. 2015. Trade of threatened vultures and other raptors for fetish and bushmeat in West and Central Africa. Oryx 50: 1–11.
   Web of Science ®Google Scholar
• Burgas D, Byholm P, Parkkima T. 2014. Raptors as surrogates of biodiversity along a landscape gradient. Journal of Applied Ecology 51: 786–794. doi: 10.1111/1365-2664.12229
   Web of Science ®Google Scholar
• Campbell MO. 2016. Vultures: their evolution, ecology and conservation. Boca Raton: CRC Press.
   Google Scholar
• Carneiro C, Henriques M, Barbosa C, Tchantchalam Q, Regalla A, Patrício AR, Catry P. 2017. Ecology and behaviour of Palm-nut Vultures Gypohierax angolensis in the Bijagós Archipelago, Guinea-Bissau. Ostrich. 88: 113–121.
   Google Scholar
• Catry P, Araújo A, Cruz C, Pinheiro A, Poças M, Nadum J, Armelin M, Pereira JR. 1999. Are mist-nets suitable for rapid habitat evaluations in the tropics? Results from a study in Guinea-Bissau. Ostrich 70: 134–137. doi: 10.1080/00306525.1999.9634528
   Web of Science ®Google Scholar
• Coppens B. 2015. Report on the ornithological importance of the Boé region, Guinea-Bissau. Unpublished report. Daridibó, Bissau: Chimbo Foundation.
   Google Scholar
• Dawson TJ, Read D, Russell EM, Herd RM. 1984. Seasonal variation in daily activity patterns, water relations and diet of Emus. Emu 84: 93–102. doi: 10.1071/MU9840093
   Web of Science ®Google Scholar
• del Hoyo J, Collar NJ, Christie DA, Elliott A, Fishpool LDC. 2014. HBW and BirdLife International illustrated checklist of the birds of the world, vol. 1: Non-passerines. Barcelona: Lynx Editions; Cambridge: BirdLife International.
   Google Scholar
• de Naurois R. 1969. Peuplements et cycles de reproduction des oiseaux de la côte occidentale d’Afrique (du Cap Barbas, Sahara Espagnol, à la Frontière de la République de Guinée). In Mémoires du Muséum National d’Histoire Naturelle. Paris: Muséum National d’Histoire Naturelle.
   Google Scholar
• Dodman T, Barlow C, Sá J, Robertson P. 2004. Important Bird Areas in Guinea-Bissau. Dakar: Wetlands International; Bissau: Gabinete de Planificação Costeira.
   Google Scholar
• Dodman T, Sá J. 2005. Monitorização de aves aquáticas no Arquipélago dos Bijagós, Guiné-Bissau. Dakar: Wetlands International; Bissau: Gabinete de Planificação Costeira.
   Google Scholar
• Faye M. 2010. Lettre politique du développement de l’élevage de la Guinée-Bissau. Bissau: Ministério da Agricultura e do Desenvolvimento Rural, Direcção Geral da Pecuária, Projet de Réhabilitation du Secteur Agricole et Rural.
   Google Scholar
• Frade F, Bacelar A. 1957. Catálogo das aves da Guiné Portuguesa, vol. I: Non-passeres. Anais da Junta das Missões Geográficas e de Investigações do Ultramar vol. 10, t. 4, fasc. 2. Lisbon: Junta de Investigações do Ultramar
   Google Scholar
• Fuller MR, Mosher. JA. 1987. Raptor survey techniques. In: Pendleton BG, Millsap BA, Cline KW, Bird DM (eds), Raptor management techniques manual. Washington, DC: National Wildlife Federation. pp 37–65.
   Google Scholar
• Guilherme JL. 2014. Birds of the Boé region, south-east Guinea-Bissau, including first country records of Chestnut-backed Sparrow Lark Eremopterix leucotis, Lesser Striped Swallow Cecropis abyssinica and Heuglin’s Wheatear Oenanthe heuglini. Bulletin of the African Bird Club 21: 155–168.
   Google Scholar
• Hake M, Kjellen N, Alerstam T. 2003. Age-dependent migration strategy in honey buzzards Pernis apivorus tracked by satellite. Oikos 103: 385–396. doi: 10.1034/j.1600-0706.2003.12145.x
   Web of Science ®Google Scholar
• Henriques M, Monteiro H. 2014. Núcleos Importantes para as Aves: Parque Natural de Tarrafes do Rio Cacheu. Unpublished report. Bissau: Instituto da Biodiversidade e das Áreas Protegidas.
   Google Scholar
• Hijmans RJ, Cameron SE, Parra JL, Jones PG, Jarvis A. 2005. Very high resolution interpolated climate surfaces for global land areas. International Journal of Climatology 25: 1965–1978. doi: 10.1002/joc.1276
   Web of Science ®Google Scholar
• Instituto da Biodiversidade e das Áreas Protegidas. 2014. Estratégia Nacional para as Áreas Protegidas e a Conservação da Biodiversidade na Guiné-Bissau 2014–2020. Bissau: Instituto da Biodiversidade e das Áreas Protegidas.
   Google Scholar
• Instituto Nacional de Estatística. 2009. População por região, sector e localidades por sexo: censo de 2009. Bissau: Ministério da Economia e Finanças da República da Guiné-Bissau.
   Google Scholar
• Jallow M, Barlow CR, Sanyang L, Dibba L, Kendall C, Bechard M, Bildstein KL. 2016. High population density of the Critically Endangered Hooded Vulture Necrosyrtes monachus in Western Region, The Gambia, confirmed by road surveys in 2013 and 2015. Malimbus 38: 23–28.
   Web of Science ®Google Scholar
• Kemp AC, Kirwan GM, Christie DA, Marks JS. 2016. Secretarybird (Sagittarius serpentarius). In: del Hoyo J, Elliott A, Sargatal J, Christie DA, de Juana E (eds), Handbook of the birds of the world alive. Barcelona: Lynx Edicions. Available at http://www.hbw.com/node/53186 [accessed 4 December 2016].
   Google Scholar
• Kjellén N, Hake M, Alerstam T. 2001. Timing and speed of migration in male, female and juvenile Ospreys Pandion haliaetus between Sweden and Africa as revealed by field observations, radar and satellite tracking. Journal of Avian Biology 32: 57–67. doi: 10.1034/j.1600-048X.2001.320108.x
   Web of Science ®Google Scholar
• Lecoq M, Regalla A. 2015. Lista das espécies de aves do Parque Natural dos Tarrafes do Rio Cacheu identificadas até Outubro de 2015. Unpublished report. Bissau: Monte NGO and Instituto da Biodiversidade e Áreas Protegidas.
   Google Scholar
• Limiñana R, Soutullo A, Arroyo B, Urios V. 2012. Protected areas do not fulfil the wintering habitat needs of the trans-Saharan migratory Montagu’s harrier. Biological Conservation 145: 62–69. doi: 10.1016/j.biocon.2011.10.009
   Web of Science ®Google Scholar
• Mendes L, Nunes M, Rocha PA. 1998. Recenseamento da Águia-pesqueira-africana Haliaetus vocifer, Abutre-das-palmeiras Gypohierax angolensis e Águia-pesqueira-europeia Pandion haliaetus no Parque Nacional de Orango, República da Guiné-Bissau. Report prepared for the IUCN, Bissau.
   Google Scholar
• Monteiro H. 2011. Relatório Síntese: Missão de elaboração de estratégia de seguimento de aves aquáticas no PNTC, PNC e PNLC. Unpublished report. Bissau: Instituto da Biodiversidade e das Áreas Protegidas.
   Google Scholar
• Murn C, Botha A. 2017. A clear and present danger: impacts of poisoning on a vulture population and the effect of poison response activities. Oryx. DOI: 10.1017/S0030605316001137.
   Google Scholar
• Ogada D, Botha A, Shaw P. 2015b. Ivory poachers and poison: drivers of Africa’s declining vulture populations. Oryx 50: 593–596. doi: 10.1017/S0030605315001209
   Web of Science ®Google Scholar
• Ogada D, Buij R. 2011. Large declines of the Hooded Vulture Necrosyrtes monachus across its African range. Ostrich 82: 101–113. doi: 10.2989/00306525.2011.603464
   Web of Science ®Google Scholar
• Ogada D, Keesing F. 2010. Decline of raptors over a three-year period in Laikipia, Central Kenya. Journal of Raptor Research 44: 129–135. doi: 10.3356/JRR-09-49.1
   Web of Science ®Google Scholar
• Ogada D, Keesing F, Virani MZ. 2012. Dropping dead: causes and consequences of vulture population declines worldwide. Annals of the New York Academy of Sciences 1249: 57–71. doi: 10.1111/j.1749-6632.2011.06293.x
   PubMed Web of Science ®Google Scholar
• Ogada D, Odino M, Wairasho P, Mugambi B. 2016. Raptor Survey of northern Kenya 2–16 May 2016. Unpublished report. Nairobi: The Peregrine Fund.
   Google Scholar
• Ogada D, Shaw P, Beyers RL, Buij R, Murn C, Thiollay JM, Beale CM, Holdo RM, Pomeroy D, Baker N, Krüger SC, Botha A, Virani MZ, Monadjem A, Sinclair ARE. 2015a. Another continental vulture crisis: Africa’s vultures collapsing toward extinction. Conservation Letters 9: 89–97. doi: 10.1111/conl.12182
   Web of Science ®Google Scholar
• Panuccio M, Mellone U, Muner L. 2013. Differential wintering area selection in Eurasian Marsh Harrier (Circus aeruginosus): a ringing recoveries analysis. Bird Study 60: 52–59. doi: 10.1080/00063657.2012.753399
   Web of Science ®Google Scholar
• Pomeroy D, Shaw P, Opige M, Kaphu G, Ogada DL, Virani MZ. 2014. Vulture populations in Uganda: using road survey data to measure both densities and encounter rates within protected and unprotected areas. Bird Conservation International 25: 399–414. doi: 10.1017/S095927091400029X
   Web of Science ®Google Scholar
• Prakash V, Pain DJ, Cunningham AA, Donald PF, Prakash N, Verma A, Gargi R, Sivakumar S, Rahmani AR. 2003. Catastrophic collapse of Indian white-backed Gyps bengalensis and long-billed Gyps indicus vulture populations. Biological Conservation 109: 381–390. doi: 10.1016/S0006-3207(02)00164-7
   Web of Science ®Google Scholar
• Rainho A, Sousa M, Monteiro H, da Silva CS, Palmeirim JM. 2007. Morcegos e aves das florestas de Cantanhez e Cacine. Lisbon: Instituto da Conservação da Natureza e das Florestas, and Instituto da Biodiversidade e das Áreas Protegidas.
   Google Scholar
• Rodwell SP. 1996. Notes on the distribution and abundance of birds observed in Guinea-Bissau, 21 February to 3 April 1992. Malimbus 18: 25–43.
   Google Scholar
• Rondeau G, Condeé MM, Ahon B, Diallo O, Pouakouyou D. 2008. Survey of the occurrence and relative abundance of raptors in Guinea subject to international trade. JNCC Report no. 42. Peterborough: Joint Nature Conservation Committee.
   Google Scholar
• Sayre R, Comer P, Hak J, Josse C, Bow J, Warner H, Larwanou M, Kelbessa E, Bekele T, Kehl H et al. 2013. A new map of standardized terrestrial ecosystems of Africa. Washington, DC: Association of American Geographers.
   Google Scholar
• Sekercioglu CH. 2006. Increasing awareness of avian ecological function. Trends in Ecology and Evolution 21: 464–471. doi: 10.1016/j.tree.2006.05.007
   PubMed Web of Science ®Google Scholar
• Şekercioğlu ÇH, Daily GC, Ehrlich PR. 2004. Ecosystem consequences of bird declines. Proceedings of the National Academy of Sciences of the USA 101: 18042–18047. doi: 10.1073/pnas.0408049101
   PubMed Web of Science ®Google Scholar
• Sergio F, Caro T, Brown D, Clucas B, Hunter J, Ketchum J, McHugh K, Hiraldo F. 2008. Top predators as conservation tools: ecological rationale, assumptions, and efficacy. Annual Review of Ecology, Evolution, and Systematics 39: 1–19. doi: 10.1146/annurev.ecolsys.39.110707.173545
   Web of Science ®Google Scholar
• Sergio F, Newton I, Marchesi L, Pedrini P. 2006. Ecologically justified charisma: preservation of top predators delivers biodiversity conservation. Journal of Applied Ecology 43: 1049–1055. doi: 10.1111/j.1365-2664.2006.01218.x
   Web of Science ®Google Scholar
• Strandberg R, Hake M, Klaassen RHG, Alerstam T. 2012. Movements of immature European Honey Buzzards Pernis apivorus in tropical Africa. Ardea 100: 157–162. doi: 10.5253/078.100.0207
   Web of Science ®Google Scholar
• Thiel R. 1977. Activity patterns and food habits of southeastern Wisconsin Turkey Vultures. Passenger Pigeon 384: 137–143.
   Google Scholar
• Thiollay J-M. 1989. Distribution and ecology of Palearctic birds of prey wintering in West and Central Africa. In: Meyburg B-U, Chancellor RD (eds), Raptors in the modern world. Berlin: World Working Group on Birds of Prey and Owls. pp 95–107.
   Google Scholar
• Thiollay J-M. 2001. Long-term changes of raptor populations in Northern Cameroon. Journal of Raptor Research 35: 173–186.
   Web of Science ®Google Scholar
• Thiollay J-M. 2006a. Severe decline of large birds in the Northern Sahel of West Africa: a long-term assessment. Bird Conservation International 16: 353–365. doi: 10.1017/S0959270906000487
   Web of Science ®Google Scholar
• Thiollay J-M. 2007a. Raptor population decline in West Africa. Ostrich 78: 405–413. doi: 10.2989/OSTRICH.2007.78.2.46.126
   Web of Science ®Google Scholar
• Thiollay J-M. 2007b. Raptor declines in West Africa: comparisons between protected, buffer and cultivated areas. Oryx 41: 322–329. doi: 10.1017/S0030605307000809
   Web of Science ®Google Scholar
• Thiollay JM. 2006b. The decline of raptors in West Africa: long-term assessment and the role of protected areas. Ibis 148: 240–254. doi: 10.1111/j.1474-919X.2006.00531.x
   Web of Science ®Google Scholar
• Thiollay JM. 2006c. Large bird declines with increasing human pressure in savanna woodlands (Burkina Faso). Biodiversity and Conservation 15: 2085–2108. doi: 10.1007/s10531-004-6684-3
   Web of Science ®Google Scholar
• United Nations Statistics Division. 2016. Country profile: Guinea-Bissau. Available at http://data.un.org/CountryProfile.aspx?crName=guinea-bissau [accessed 12 September 2016].
   Google Scholar
• Virani MZ, Kendall C, Njoroge P, Thomsett S. 2011. Major declines in the abundance of vultures and other scavenging raptors in and around the Masai Mara ecosystem, Kenya. Biological Conservation 144: 746–752. doi: 10.1016/j.biocon.2010.10.024
   Web of Science ®Google Scholar
• Wacher T, Newby J, Houdou I, Harouna A, Rabeil T. 2013. Vulture observations in the Sahelian zones of Chad and Niger. Bulletin of the African Bird Club 20: 186–199.
   Google Scholar
• Whytock RC, Buij R, Virani MZ, Morgan BJ. 2014. Do large birds experience previously undetected levels of hunting pressure in the forests of Central and West Africa?. Oryx 50: 1–8.
   Web of Science ®Google Scholar
• Zwarts L, Bijlsma RG, van der Kamp J, Wymenga E. 2012. Les ailes du Sahel: zones humides et oiseaux migrateurs dans an environnement en mutation. Zeist: Brill.
   Google Scholar