Shorebirds can adopt foraging strategies that take advantage of human fishing practices
Vitor O. Lunardi A C D and Regina H. Macedo B
+ Author Affiliations
- Author Affiliations
A Programa de Pós-graduação em Ecologia, Instituto de Ciências Biológicas, Universidade de Brasília, Brasília 70910-900, Brazil.
B Departamento de Zoologia, Instituto de Ciências Biológicas, Universidade de Brasília, Brasília 70910-900, Brazil.
C Present address: Laboratório de Ecologia Evolutiva e Molecular, Universidade Federal Rural do Semiárido, Mossoró, RN 59625-900, Brazil.
D Corresponding author. Email: lunardi.vitor@ufersa.edu.br
Emu 114(1) 50-60 https://doi.org/10.1071/MU12097
Submitted: 17 October 2012 Accepted: 7 June 2013 Published: 1 November 2013
Abstract
Human presence and activities are considered to be a potential threat to many species, mainly because they interfere with the abilities of many animals to exploit essential resources. In this study we investigate the influence of human presence and activities on the behaviour of nine shorebird species in an intertidal area at Baía de Todos os Santos, north-eastern Brazil. The area is used both by shorebirds and traditional human community to extract invertebrates for food, and also used by people for recreation. We analyse and compare the foraging behaviour of shorebirds under three different conditions: absence of humans, presence of humans manually gathering shellfish (shellfishing), and presence of humans engaged in recreational activity. Recreational activity was associated with greater behavioural change to the shorebirds than shellfishing. Shorebirds were less plentiful, showed lower foraging rates and moved around more when exposed to recreational activity. Larger shorebirds were less abundant when shellfishing or recreational activities were taking place. Intertidal areas of sediment manually overturned by shellfishers had higher rates of shorebird foraging and agonistic encounters, suggesting that shorebirds’ foraging strategies take advantage of human shellfishing. These results can be interpreted within a conservation framework to provide guidelines for the management decisions in areas used by shorebirds.
Additional keywords: artisanal fishing, benthic, Charadriidae, coastal conservation, dependence, human–wildlife interactions, Scolopacidae, shellfish.
References
Adams, D. C., and Anthony, C. D. (1996). Using randomization techniques to analyze behavioural data. Animal Behaviour 51, 733–738.| Using randomization techniques to analyze behavioural data.Crossref | GoogleScholarGoogle Scholar |
Ambrose, W. G., Dawson, M., Gailey, C., Ledkovsky, P., O’Leary, S., Tassinari, B., Vogel, H., and Wilson, C. (1998). Effects of baitworm digging on the soft-shelled clam, Mya arenaria, in Maine: shell damage and exposure on the sediment surface. Journal of Shellfish Research 17, 1043–1049.
Antas, P. T. Z. (1983). Migration of Nearctic shorebirds (Charadriidae and Scolopacidae) in Brasil – flyways and their different seasonal use. Wader Study Group Bulletin 39, 52–56.
Beale, C. M., and Monaghan, P. (2004). Behavioural responses to human disturbance: a matter of choice? Animal Behaviour 68, 1065–1069.
| Behavioural responses to human disturbance: a matter of choice?Crossref | GoogleScholarGoogle Scholar |
Benoit-Bird, K. J., Battaile, B. C., Heppell, S. A., Hoover, B., Irons, D., Jones, N., Kuletz, K. J., Nordstrom, C. A., Paredes, R., Suryan, R. M., Waluk, C. M., and Trites, A. W. (2013). Prey patch patterns predict habitat use by top marine predators with diverse foraging strategies. PLoS ONE 8, e53348.
| Prey patch patterns predict habitat use by top marine predators with diverse foraging strategies.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC3sXpsFGhsw%3D%3D&md5=c5113e7c658bfb0d13927f797e3f82d1CAS | 23301063PubMed |
Bildstein, K. L., Bancroft, G. T., Dugan, P. J., Gordon, D. H., Erwin, R. M., Nol, E., Payne, L. X., and Senner, S. E. (1991). Approaches to the conservation of coastal wetlands in the Western Hemisphere. Wilson Bulletin 103, 218–254.
Blumstein, D. T. (2006). Developing an evolutionary ecology of fear: how life history and natural history traits affect disturbance tolerance in birds. Animal Behaviour 71, 389–399.
| Developing an evolutionary ecology of fear: how life history and natural history traits affect disturbance tolerance in birds.Crossref | GoogleScholarGoogle Scholar |
Blumstein, D. T., and Fernández-Juricic, E. (2010). ‘A Primer of Conservation Behavior.’ (Sinauer Associates: Sunderland, MA.)
Blumstein, D. T., Anthony, L. L., Harcourt, R., and Ross, G. (2003). Testing a key assumption of wildlife buffer zones: is flight initiation distance a species-specific trait? Biological Conservation 110, 97–100.
| Testing a key assumption of wildlife buffer zones: is flight initiation distance a species-specific trait?Crossref | GoogleScholarGoogle Scholar |
Brosnan, D. M., and Crumrine, L. L. (1994). Effects of human trampling on marine rocky shore communities. Journal of Experimental Marine Biology and Ecology 177, 79–97.
| Effects of human trampling on marine rocky shore communities.Crossref | GoogleScholarGoogle Scholar |
Burger, J. (1981). The effect of human activity on birds at a coastal bay. Biological Conservation 21, 231–241.
| The effect of human activity on birds at a coastal bay.Crossref | GoogleScholarGoogle Scholar |
Burger, J. (1998). Effects of motorboats and personal watercraft on flight behavior over a colony of Common Terns. Condor 100, 528–534.
| Effects of motorboats and personal watercraft on flight behavior over a colony of Common Terns.Crossref | GoogleScholarGoogle Scholar |
Burton, N. H. K. (2007). Landscape approaches to studying the effects of disturbance on waterbirds. Ibis 149, 95–101.
| Landscape approaches to studying the effects of disturbance on waterbirds.Crossref | GoogleScholarGoogle Scholar |
Burton, N. H. K., Armitage, M. J. S., Musgrove, A. J., and Rehfisch, M. M. (2002). Impacts of man-made landscape features on numbers of estuarine waterbirds at low tide. Environmental Management 30, 857–864.
| Impacts of man-made landscape features on numbers of estuarine waterbirds at low tide.Crossref | GoogleScholarGoogle Scholar |
Cirano, M., and Lessa, G. C. (2007). Oceanographic characteristics of Baía de Todos os Santos, Brazil. Revista Brasileira de Geofísica 25, 363–387.
| Oceanographic characteristics of Baía de Todos os Santos, Brazil.Crossref | GoogleScholarGoogle Scholar |
Cornelius, C., Navarrete, S. A., and Marquet, P. A. (2001). Effects of human activity on the structure of coastal marine bird assemblages in central Chile. Conservation Biology 15, 1396–1404.
| Effects of human activity on the structure of coastal marine bird assemblages in central Chile.Crossref | GoogleScholarGoogle Scholar |
Cresswell, W. (2008). Non-lethal effects of predation in birds. Ibis 150, 3–17.
| Non-lethal effects of predation in birds.Crossref | GoogleScholarGoogle Scholar |
de Araujo, L. M., and Bramwell, B. (2002). Partnership and regional tourism in Brazil. Annals of Tourism Research 29, 1138–1164.
| Partnership and regional tourism in Brazil.Crossref | GoogleScholarGoogle Scholar |
de Boer, W. F., and Longamane, F. A. (1996). The exploitation of intertidal food resources in Inhaca Bay, Mozambique, by shorebirds and humans. Biological Conservation 78, 295–303.
| The exploitation of intertidal food resources in Inhaca Bay, Mozambique, by shorebirds and humans.Crossref | GoogleScholarGoogle Scholar |
Defeo, O., McLachlan, A., Schoeman, D. S., Schlacher, T. A., Dugan, J., Jones, A., Lastra, M., and Scapini, F. (2009). Threats to sandy beach ecosystems: a review. Estuarine, Coastal and Shelf Science 81, 1–12.
| Threats to sandy beach ecosystems: a review.Crossref | GoogleScholarGoogle Scholar |
Dias, M. P., Peste, F. A., Granadeiro, J. P., and Palmeirim, J. M. (2008). Does traditional shellfishing affect foraging by waders? The case of the Tagus Estuary (Portugal). Acta Oecologica 33, 188–196.
| Does traditional shellfishing affect foraging by waders? The case of the Tagus Estuary (Portugal).Crossref | GoogleScholarGoogle Scholar |
Erlandson, J. M., Madonna, L. M., and Des Lauriers, M. (2008). Life on the edge: early maritime cultures of the Pacific Coast of North America. Quaternary Science Reviews 27, 2232–2245.
| Life on the edge: early maritime cultures of the Pacific Coast of North America.Crossref | GoogleScholarGoogle Scholar |
Evans, P. R. (1976). Energy balance and optimal foraging strategies in shorebirds: some implications for their distributions and movements in the non-breeding season. Ardea 64, 117–139.
Ferns, P. N., Rostron, D. M., and Siman, H. Y. (2000). Effects of mechanical cockle harvesting on intertidal communities. Journal of Applied Ecology 37, 464–474.
| Effects of mechanical cockle harvesting on intertidal communities.Crossref | GoogleScholarGoogle Scholar |
Frid, A., and Dill, L. (2002). Human-caused disturbance stimuli as a form of predation risk. Conservation Ecology 6(1), 11. Available at http://www.consecol.org/vol6/iss1/art11/ [Verified 28 July 2009].
Gabriel, K. R. (1978). A simple method of multiple comparisons of means. Journal of the American Statistical Association 73, 724–729.
| A simple method of multiple comparisons of means.Crossref | GoogleScholarGoogle Scholar |
Gill, J. A. (2007). Approaches to measuring the effects of human disturbance on birds. Ibis 149, 9–14.
| Approaches to measuring the effects of human disturbance on birds.Crossref | GoogleScholarGoogle Scholar |
Gill, J. A., Norris, K., and Sutherland, W. J. (2001). Why behavioural responses may not reflect the population consequences of human disturbance. Biological Conservation 97, 265–268.
| Why behavioural responses may not reflect the population consequences of human disturbance.Crossref | GoogleScholarGoogle Scholar |
Glover, H. K., Weston, M. A., and Maguire, G. S. (2011). Towards ecologically meaningful and socially acceptable buffers: response distances of shorebirds in Victoria, Australia, to human disturbance. Landscape and Urban Planning 103, 326–334.
| Towards ecologically meaningful and socially acceptable buffers: response distances of shorebirds in Victoria, Australia, to human disturbance.Crossref | GoogleScholarGoogle Scholar |
Goss-Custard, J. D., Stillman, R. A., West, A. D., Caldow, R. W. G., Triplet, P., le V dit Durell, S. E. A., and McGrorty, S (2004). When enough is not enough: shorebirds and shellfishing. Proceedings of the Royal Society of London – B. Biological Sciences 271, 233–237.
| When enough is not enough: shorebirds and shellfishing.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DC%2BD2c7msVOhsg%3D%3D&md5=fba0e0f9c63912be8ece268c952dd3b2CAS |
Gray, J. S. (1997). Marine biodiversity: patterns, threats and conservation needs. Biodiversity and Conservation 6, 153–175.
| Marine biodiversity: patterns, threats and conservation needs.Crossref | GoogleScholarGoogle Scholar |
Griffiths, J., Dethier, M. N., Newsom, A., Byers, J. E., Meyer, J. J., Oyarzun, F., and Lenihan, H. (2006). Invertebrate community responses to recreational clam digging. Marine Biology 149, 1489–1497.
| Invertebrate community responses to recreational clam digging.Crossref | GoogleScholarGoogle Scholar |
Guay, P.-J., Weston, M. A., Symonds, M. R. E., and Glover, H. K. (2013). Brains and bravery: little evidence of a relationship between brain size and flightiness in shorebirds. Austral Ecology 38, 516–522.
| Brains and bravery: little evidence of a relationship between brain size and flightiness in shorebirds.Crossref | GoogleScholarGoogle Scholar |
Hicklin, P. W., and Smith, P. C. (1984). Selection of foraging sites and invertebrate prey by migrant Semipalmated Sandpipers, Calidris pusilla (Pallas), in Minas Basin, Bay of Fundy. Canadian Journal of Zoology 62, 2201–2210.
| Selection of foraging sites and invertebrate prey by migrant Semipalmated Sandpipers, Calidris pusilla (Pallas), in Minas Basin, Bay of Fundy.Crossref | GoogleScholarGoogle Scholar |
Hill, D., Hockin, D., Price, D., Tucker, G., Morris, R., and Treweek, J. (1997). Bird disturbance: improving the quality and utility of disturbance research. Journal of Applied Ecology 34, 275–288.
| Bird disturbance: improving the quality and utility of disturbance research.Crossref | GoogleScholarGoogle Scholar |
International Wader Study Group (2003). Waders are declining worldwide. Conclusions from the 2003 International Wader Study Group Conference, Cádiz, Spain. International Wader Study Group, Thetford, Norfolk, UK. Available at http://www.waderstudygroup.org/conf/previous/2003.php [Verified 25 June 2012].
Kaiser, M. J., Broad, G., and Hall, S. J. (2001). Disturbance of intertidal soft-sediment benthic communities by cockle hand raking. Journal of Sea Research 45, 119–130.
| Disturbance of intertidal soft-sediment benthic communities by cockle hand raking.Crossref | GoogleScholarGoogle Scholar |
Kalejta, B., and Hockey, P. A. R. (1994). Distribution of shorebirds at the Berg River estuary, South Africa, in relation to foraging mode, food supply and environmental features. Ibis 136, 233–239.
| Distribution of shorebirds at the Berg River estuary, South Africa, in relation to foraging mode, food supply and environmental features.Crossref | GoogleScholarGoogle Scholar |
Lafferty, K. D. (2001). Disturbance to wintering western Snowy Plovers. Biological Conservation 101, 315–325.
| Disturbance to wintering western Snowy Plovers.Crossref | GoogleScholarGoogle Scholar |
Lowther, P. E., Douglas, H. D., III, and Gratto-Trevor, C. L. (2001). Willet (Tringa semipalmata). In ‘The Birds of North America Online’. (Ed. A. Poole.) (Cornell Lab of Ornithology: Ithaca, NY.) Available at http://bna.birds.cornell.edu/bna/species/579 [Verified 28 October 2009].
Lunardi, V. O., and Macedo, R. H. (2010). First reproductive record of Wilson’s Plover in Baía de Todos os Santos, Northeastern Brazil. Wilson Journal of Ornithology 122, 788–791.
| First reproductive record of Wilson’s Plover in Baía de Todos os Santos, Northeastern Brazil.Crossref | GoogleScholarGoogle Scholar |
Lunardi, V. O., Macedo, R. H., Granadeiro, J. P., and Palmeirim, J. M. (2012). Migratory flows and foraging habitat selection by shorebirds along the northeastern coast of Brazil: the case of Baía de Todos os Santos. Estuarine, Coastal and Shelf Science 96, 179–187.
| Migratory flows and foraging habitat selection by shorebirds along the northeastern coast of Brazil: the case of Baía de Todos os Santos.Crossref | GoogleScholarGoogle Scholar |
Masero, J. A., Castro, M., Estrella, S. M., and Pérez-Hurtado, A. (2008). Evaluating impacts of shellfish and baitworm digging on bird populations: short-term negative effects on the availability of the mudsnail Hydrobia ulvae to shorebirds. Biodiversity and Conservation 17, 691–701.
| Evaluating impacts of shellfish and baitworm digging on bird populations: short-term negative effects on the availability of the mudsnail Hydrobia ulvae to shorebirds.Crossref | GoogleScholarGoogle Scholar |
Morrison, R. I. G. (1984). Migration systems of some New World shorebirds. In ‘Shorebirds: Migration and Foraging Behavior’. (Eds J. Burger and B. L. Olla.) pp. 125–202. (Plenum Press: New York.)
Morrison, R. I. G., and Ross, R. K. (1989). ‘Atlas of Nearctic Shorebirds on the Coast of South America.’ (Canadian Wildlife Service: Ottawa, ON.)
Myers, J. P., Williams, S. L., and Pitelka, F. A. (1980). An experimental analysis of prey availability for Sanderlings (Aves : Scolopacidae) feeding on sandy beach crustaceans. Canadian Journal of Zoology 58, 1564–1574.
| An experimental analysis of prey availability for Sanderlings (Aves : Scolopacidae) feeding on sandy beach crustaceans.Crossref | GoogleScholarGoogle Scholar |
Myers, J. P., Morrison, R. I. G., Antas, P. Z., Harrington, B. A., Lovejoy, T. E., Sallaberry, M., Senner, S. E., and Tarak, A. (1987). Conservation strategy for migratory species. American Scientist 75, 18–26.
Navedo, J. G., and Masero, J. A. (2007). Measuring potential negative effects of traditional harvesting practices on waterbirds: a case study with migrating Curlews. Animal Conservation 10, 88–94.
| Measuring potential negative effects of traditional harvesting practices on waterbirds: a case study with migrating Curlews.Crossref | GoogleScholarGoogle Scholar |
Navedo, J. G., and Masero, J. A. (2008). Effects of traditional clam harvesting on the foraging ecology of migrating Curlews (Numenius arquata). Journal of Experimental Marine Biology and Ecology 355, 59–65.
| Effects of traditional clam harvesting on the foraging ecology of migrating Curlews (Numenius arquata).Crossref | GoogleScholarGoogle Scholar |
Oliveira, J. A. P. (2002). Implementing environmental policies in developing countries through decentralization: the case of protected areas in Bahia, Brazil. World Development 30, 1713–1736.
| Implementing environmental policies in developing countries through decentralization: the case of protected areas in Bahia, Brazil.Crossref | GoogleScholarGoogle Scholar |
Oliveira, J. A. P. (2003). Governmental responses to tourism development: three Brazilian case studies. Tourism Management 24, 97–110.
| Governmental responses to tourism development: three Brazilian case studies.Crossref | GoogleScholarGoogle Scholar |
Parkington, J. (2003). Middens and moderns: shellfishing and the Middle Stone Age of the Western Cape. South African Journal of Science 99, 243–247.
Pienkowski, M. W. (1983). Changes in the foraging patterns of plovers in relation to environmental factors. Animal Behaviour 31, 244–264.
| Changes in the foraging patterns of plovers in relation to environmental factors.Crossref | GoogleScholarGoogle Scholar |
Pierce, G. J., Spray, C. J., and Stuart, E. (1993). The effect of fishing on the distribution and behaviour of waterbirds in the Kukut area of lake Songkla, southern Thailand. Biological Conservation 66, 23–34.
| The effect of fishing on the distribution and behaviour of waterbirds in the Kukut area of lake Songkla, southern Thailand.Crossref | GoogleScholarGoogle Scholar |
Pomeroy, A. C., Butler, R. W., and Ydenberg, R. C. (2006). Experimental evidence that migrants adjust usage at a stopover site to trade off food and danger. Behavioral Ecology 17, 1041–1045.
| Experimental evidence that migrants adjust usage at a stopover site to trade off food and danger.Crossref | GoogleScholarGoogle Scholar |
Prates, A. P., Lima, L. H., and Chatwin, A. (2007). Coastal and marine conservation priorities in Brazil. In ‘Priorities for Coastal and Marine Conservation in South America’. (Ed. A. Chatwin.) pp. 15–23. (The Nature Conservancy: Arlington, VA.)
Rippe, H., and Dierschke, V. (1997). Picking out the plum jobs: feeding ecology of Curlews Numenius arquata in a Baltic Sea wind flat. Marine Ecology Progress Series 159, 239–247.
| Picking out the plum jobs: feeding ecology of Curlews Numenius arquata in a Baltic Sea wind flat.Crossref | GoogleScholarGoogle Scholar |
Robar, N. D. P., and Hamilton, D. J. (2007). A method for estimating habitat use by shorebirds using footprints. Waterbirds 30, 116–120.
| A method for estimating habitat use by shorebirds using footprints.Crossref | GoogleScholarGoogle Scholar |
Shepherd, P. C. F., and Boates, J. S. (1999). Effects of a commercial baitworm harvest on Semipalmated Sandpipers and their prey in the Bay of Fundy Hemispheric Shorebird Reserve. Conservation Biology 13, 347–356.
| Effects of a commercial baitworm harvest on Semipalmated Sandpipers and their prey in the Bay of Fundy Hemispheric Shorebird Reserve.Crossref | GoogleScholarGoogle Scholar |
Skeel, M. A., and Mallory, E. P. (1996). Whimbrel (Numenius phaeopus). In ‘The Birds of North America Online’. (Ed. A. Poole.) (Cornell Lab of Ornithology: Ithaca, NY.) Available at http://bna.birds.cornell.edu/bna/species/219 [Verified 27 October 2009].
Smit, C. J., and Visser, G. J. M. (1993). Effects of disturbance on shorebirds: a summary of existing knowledge from the Dutch Wadden Sea and Delta area. Wader Study Group Bulletin 68, 6–19.
Soares, L. S. H., Lopez, J. P., Muto, E. Y., and Giannini, R. (2011). Capture fishery in northern Todos os Santos Bay, tropical southwestern Atlantic, Brazil. Brazilian Journal of Oceanography 59, 61–74.
Sousa, G. S. (1851). Tratado Descritivo do Brasil em 1587. (Typographia Universal de Laemmert. Place: Rio de Janeiro, Brazil.) Available at http://www.dominiopublico.gov.br/pesquisa/DetalheObraForm.do?select_action=&co_obra=38095 [Verified 31 October 2009].
Stillman, R. A., Goss-Custard, J. D., West, A. D., Le V dit Durrel, S. E. A., McGrorty, S., Caldow, R. W. G., Norris, K. J., Johnstone, I. G., Ens, B. J., Van Der Meer, J., and Triplet, P. (2001). Predicting shorebird mortality and population size under different regimes of shellfishery management. Journal of Applied Ecology 38, 857–868.
| Predicting shorebird mortality and population size under different regimes of shellfishery management.Crossref | GoogleScholarGoogle Scholar |
Tamhane, A. C. (1979). A comparison of procedures for multiple comparisons of means with unequal variances. Journal of the American Statistical Association 74, 471–480.
Weston, M. A., and Elgar, M. A. (2005). Disturbance to brood-rearing Hooded Plover Thinornis rubricollis: responses and consequences. Bird Conservation International 15, 193–209.
| Disturbance to brood-rearing Hooded Plover Thinornis rubricollis: responses and consequences.Crossref | GoogleScholarGoogle Scholar |
Weston, M. A., and Elgar, M. A. (2007). Responses of incubating Hooded Plovers (Thinornis rubricollis) to disturbance. Journal of Coastal Research 233, 569–576.
| Responses of incubating Hooded Plovers (Thinornis rubricollis) to disturbance.Crossref | GoogleScholarGoogle Scholar |
Weston, M. A., Ehmke, G. C., and Maguire, G. S. (2011). Nest return times in response to static versus mobile human disturbance. Journal of Wildlife Management 75, 252–255.
| Nest return times in response to static versus mobile human disturbance.Crossref | GoogleScholarGoogle Scholar |
Weston, M. A., McLeod, E. M., Blumstein, D. T., and Guay, P. J. (2012). A review of flight-initiation distances and their application to managing disturbance to Australian birds. Emu 112, 269–286.
| A review of flight-initiation distances and their application to managing disturbance to Australian birds.Crossref | GoogleScholarGoogle Scholar |
Wynberg, R. P., and Branch, G. M. (1994). Disturbance associated with bait-collection for sandprawns (Callianassa kraussi) and mudprawns (Upogebia africana): long-term effects on the biota of intertidal sandflats. Journal of Marine Research 52, 523–558.
| Disturbance associated with bait-collection for sandprawns (Callianassa kraussi) and mudprawns (Upogebia africana): long-term effects on the biota of intertidal sandflats.Crossref | GoogleScholarGoogle Scholar |
Yasué, M. (2006). Environmental factors and spatial scale influence shorebirds’ responses to human disturbance. Biological Conservation 128, 47–54.
| Environmental factors and spatial scale influence shorebirds’ responses to human disturbance.Crossref | GoogleScholarGoogle Scholar |
Ydenberg, R. C., and Dill, L. M. (1986). The economics of fleeing from predators. Advances in the Study of Behavior 16, 229–249.
| The economics of fleeing from predators.Crossref | GoogleScholarGoogle Scholar |
Zar, J. H. (1999). ‘Biostatistical Analysis.’ (Prentice-Hall: Upper Saddle River, NJ.)
Zharikov, Y., and Skilleter, G. A. (2004). Potential interactions between humans and non-breeding shorebirds on a subtropical intertidal flat. Austral Ecology 29, 647–660.
| Potential interactions between humans and non-breeding shorebirds on a subtropical intertidal flat.Crossref | GoogleScholarGoogle Scholar |
Zwarts, L., and Esselink, P. (1989). Versatility of male Curlews (Numenius arquata) preying upon Nereis diversicolor – deploying contrasting capture modes dependent on prey availability. Marine Ecology Progress Series 56, 255–269.
| Versatility of male Curlews (Numenius arquata) preying upon Nereis diversicolor – deploying contrasting capture modes dependent on prey availability.Crossref | GoogleScholarGoogle Scholar |