Skip to main content
×
Home
    • Aa
    • Aa

Foraging behaviour at carcasses in an Asian vulture assemblage: towards a good restaurant guide

  • SABINE M. HILLE (a1), FRÄNZI KORNER-NIEVERGELT (a2), MAARTEN BLEEKER (a3) and NIGEL J. COLLAR (a4)
Abstract
Summary

Vulture populations are declining steeply worldwide. Vulture ‘restaurants’ or feeding stations are a tool for maintaining and monitoring numbers, but individual species may be disadvantaged by the effects of carcass distribution, carcass size and interspecific aggression. To test the degree to which restaurants give opportunities for each species to access the food provided, we studied behaviour and morphology in three Critically Endangered species of vulture in Cambodia: the gregariously breeding and feeding White-rumped Vulture Gyps bengalensis and Slender-billed Vulture G. tenuirostris, and the solitary Red-headed Vulture Sarcogyps calvus. We video-recorded attendance time, attendance order and dominance behaviour at different-sized carcasses. Interspecific aggression at carcasses was least frequently shown by the ‘small’ White-rumped Vulture. The relatively ‘large’ Slender-billed and ‘medium’ Red-headed Vultures showed aggression more regularly and at similar levels. However, the latter avoids conflict by waiting until Gyps vultures are no longer crowding at the carcass, although its arrival at carcasses was correlated with total number of vultures present. While more numerous than Red-headed, the two Gyps vultures are more dependent on large carcasses, which increases their vulnerability to further declines in wild large ungulate species. Body size, number of individuals, hunger levels and carcass size and availability all influence carcass attendance behaviour. An increase in the number and spatial distribution of restaurants as well as of carcass size range could boost numbers of all vulture species.

Copyright
Corresponding author
*Author for correspondence; email: sabine.hille@boku.ac.at
Linked references
Hide All

This list contains references from the content that can be linked to their source. For a full set of references and notes please see the PDF or HTML where available.

N. Becker , Y. Choresh , O. Bahat and M Inbar . (2009) Economic analysis of feeding stations as a means to preserve an endangered species: the case of Griffon Vulture (Gyps fulvus) in Israel. J. Nat. Conserv. 17: 199211.

M. Blázquez , J. A. Sánchez-Zapata , F. Botella , M. Carrete and S Eguía . (2009) Spatio-temporal segregation of facultative avian scavengers at ungulate carcasses. Acta Oecol. 35: 645650.

B. M. Bolker , M. E. Brooks , C. J. Clark , S. W. Geange , J. R. Poulsen , H. H. Stevens and J.-S White . (2008) Generalized linear mixed models: a practical guide for ecology and evolution. Trends Ecol. Evol. 24: 127135.

M. Bosè , O. Duriez and F Sarrazin . (2012) Intra-specific competition in foraging Griffon Vultures Gyps fulvus, 1: dynamics of group feeding. Bird Study 59: 182192.

M. Carrete , S. A. Lambertucci , K. Speziale , O. Ceballos , A. Travaini , M. Delibes , F. Hiraldo and J. A Donázar . (2010) Winners and losers in human-made habitats: interspecific competition outcomes in two Neotropical vultures. Anim. Conserv. 13: 390398.

T. Clements , M. Gilbert , H. J. Rainey , R. Cuthbert , J. C. Eames , P. Bunnat , S. Teak , S. Chansocheat and T. Setha (2012) Vultures in Cambodia: population, threats and conservation. Bird Conserv. Internatn. 23: 724.

A. Cortés-Avizanda , J. A. Donázar and M Carrete . (2010) Managing supplementary feeding for avian scavengers: guidelines for optimal design using ecological criteria. Biol. Conserv. 143: 17071715.

A. Cortés-Avizanda , R. Jovani , J. A. Donázar and V Grimm . (2014) Bird sky networks: how do avian scavengers use social information to find carrion? Ecology 95: 17991808.

R. Cuthbert , R. E. Green , S. Ranade , S. Saravanan , D. J. Pain , V. Prakash and A. A Cunningham . (2006) Rapid population declines of Egyptian Vulture (Neophron percnopterus) and Red-headed Vulture (Sarcogyps calvus) in India. Anim. Conserv. 9: 349354.

C. Deygout , A. Gault , O. Duriez , C. Sarrazin and C Bessa-Gomes . (2010) Impact of food predictability on social facilitation by foraging scavengers. Behav. Ecol. doi:10.1093/beheco/arq120

L. Gangoso , P. Álvarez-Lloret , A. B. Rodríguez-Navarro , R. Mateo , F. Hiraldo and J. A Donázar . (2009) Long-term effects of lead poisoning on bone mineralization in vultures exposed to ammunition sources. Envir. Poll. 157: 569574.

M. Hernández and A Margalida . (2009) Poison-related mortality effects in the endangered Egyptian vulture (Neophron percnopterus) population in Spain. Eur. J. Wildl. Res. doi:10.1007/s10344-009-0255-6

F Hertel . (1994) Diversity in body size and feeding morphology within past and present vulture assemblages. Ecology 75: 10741084.

D. C Houston . (1988) Competition for food between Neotropical vultures in forest. Ibis 130: 402417.

A. L. Jackson , G. D. Ruxton and D. C Houston . (2008) The effect of social facilitation on foraging success in vultures: a modelling study. Biol. Lett. 4: 311313.

D. A Kirk . and. D. C Houston . (1995) Social dominance in migrant and resident Turkey Vultures at carcasses: evidence for a despotic distribution? Behav. Ecol. Sociobiol. 36: 323332.

C König . (1974) Zum Verhalten spanischer Geier an Kadavern. J. Orn. 115: 289320.

A. Margalida , J. A. Donázar , M. Carrete , and J. A Sánchez-Zapata . (2010) Sanitary versus environmental policies: fitting together two pieces of the puzzle of European vulture. J. Appl. Ecol. 47: 931935.

A. Margalida , G. Bogliani , C. G. R. Bowden , J. A. Donázar , F. Genero , M. Gilbert , W. B. Karesh , R. Kock , J. Lubroth , X. Manteca , V. Naidoo , A. Neimanis , J. A. Sánchez-Zapata , M. A. Taggart , J. Vaarten , L. Yon , T. Kuiken and R. E Green . (2014) One Health approach to use of veterinary pharmaceuticals. Science 346: 12961298.

J. M. Marzluff and B Heinrich . (1991) Foraging by common ravens in the presence and absence of territory holders: an experimental analysis of social foraging. Anim. Behav. 42: 755770.

R. Moreno-Opo , A. Trujillo , A. Arredondo , L. M. González and A Margalida . (2015) Manipulating size, amount and appearance of food inputs to optimize supplementary feeding programs for European vultures. Biol. Conserv. 181: 2735.

D.-H. Nam and D.-P Lee . (2009) Abnormal lead exposure in globally threatened Cinereous vultures (Aegypius monachus) wintering in South Korea. Ecotoxicology 18: 225229.

D. L. Ogada , F. Keesing and M. Z Virani . (2012) Dropping dead: causes and consequences of vulture population declines worldwide. Ann. NY. Acad. Sci. 1249: 5771.

S. E. Piper , A. E. Boshoff and H. A Scott . (1999) Modelling survival rates in the Cape Griffon Gyps coprotheres, with emphasis on the effects of supplementary feeding. Bird Study. 46: 230238.

N. Selva , B. Jedrzejewska , W. Jedrzejewski and A Wajrak . (2005) Factors affecting carcass use by a guild of scavengers in European temperate woodland. Canad. J. Zool. 83: 15901601.

C. C. Wilmers , D. R. Stahler , R. L. Crabtree , D. W. Smith and W. M Getz . (2003) Resource dispersion and consumer dominance: scavenging at wolf- and hunter-killed carcasses in greater Yellowstone, USA. Ecol. Lett. 6: 9961003.

Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

Bird Conservation International
  • ISSN: 0959-2709
  • EISSN: 1474-0001
  • URL: /core/journals/bird-conservation-international
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×
Type Description Title
WORD
Supplementary Materials

Hille supplementary material
Table S1

 Word (17 KB)
17 KB

Metrics

Altmetric attention score

Full text views

Total number of HTML views: 1
Total number of PDF views: 38 *
Loading metrics...

Abstract views

Total abstract views: 250 *
Loading metrics...

* Views captured on Cambridge Core between September 2016 - 29th June 2017. This data will be updated every 24 hours.