Foraging Behaviour of the Black-Headed Heron at Kibimba Rice Scheme, Eastern Uganda

Main Article Content

Sarah Nachuha
Polycarp M. Mwima

Abstract

Variations in the factors affecting prey availability directly impact on the spatial dispersion of foraging birds. The feeding success and efficiency of the Black-headed Heron (Ardea melanocephala) was examined in the different growth stages/phases of paddy rice, namely: Ploughed fields, Phase 1 fields (2 weeks-1 month after sowing) and Harvested fields. Feeding success of the Black-headed Heron varied significantly across the rice growth stage. This variation was explained by a combination of factors such water depth, waterbird abundance, Nearest Neighbor Distance (NND) and food or prey abundance (except amphibian abundance). Statistical analysis were conducted using Genstat Version 8.1 (VSN Intl.2003, in which a General Linear Mixed Model were used to examine the variation in each behavioural measure. Foraging in aggregations on rice paddies seems to be more beneficial to the Black-headed Heron. The closeness to a conspecific had a positive effect on the feeding efficiency of the Black-headed Heron as they foraged on fields with abundant prey (Phase 1) and a negative effect on fields with less abundant prey (Ploughed fields). Generally, the data seem to suggest that there is a functional relationship between the Black-headed Heron, and prey abundance, and the absence of interference competition on rice fields.

Keywords:
Foraging, success, efficiency, rice phase, NND, black-headed heron, statistical analysis.

Article Details

How to Cite
Nachuha, S., & Mwima, P. M. (2020). Foraging Behaviour of the Black-Headed Heron at Kibimba Rice Scheme, Eastern Uganda. Advances in Research, 21(10), 83-90. https://doi.org/10.9734/air/2020/v21i1030254
Section
Original Research Article

References

Parker GA, WJ Sutherland. Ideal free distributions when individuals differ in competitive ability: Phenotype-limited ideal free models. Animal Behaviour, 1986;34: 1222-1242.

Kahl MP. Food ecology of the wood stork (Mycteria Americana). Ecolological Monograph. 1964;34:97-117.

Kushlan JA, JC Ogden JL Tilmant. Relation of water level and fish availability to wood stork reproduction in the southern Everglades, Florida. (Open File Report, 1975:75-434). Tallahassee: US Geological Survey.

Knight EC, Vennesland RG, Waterbirds, Winchester NN. Importance of proximity to foraging areas for the pacific great blue heron (Ardea herodias fannini) nesting in a developed landscape. 2012;39(2):165-174.

Milsom TP, SD Langton, WK Parkin, S Peel, JD Bishop, JD Hart, NP Moore. Habitat Models of bird species distribution: An aid to the management of coastal grazing marshes. Journal of. Applied. Ecology. 2000;37:706-727.

Bryant DM. Reproductive costs in the House Martin. Journal of Animal Ecoolgy. 1979;48:655-675.

Goss-Custard JD. Intake rates and food supply in migrating and wintering shorebirds, 1984; 233-269. In JA Burger and BA Olla (eds.), behavior of marine animals, Vol.6: Shorebirds; migration and foraging behavior. Plenum Press, New York.

Pulliam HR, Caraco T. Living in Groups: is there any optimal group size? Behavioral ecology, 2nd edn (eds JR Krebs, NB Davies) 1984;122-147. Blackwell Scientific, Oxford.

Goss-Custard JD, V Le, SEA Dit Durrel. The effect of dominance and feeding method on the intake rates of oystercatchers, Haematopus ostralegus L. Journal of Animal Ecology. 1988;57:827-844.

Cresswell W. Interference competition at low competitor densities in blackbirds Turdus merula. Journal of Animal Ecology. 199;66:461-471.

Vennesland RG. Risk perception of great Blue Herons: Experimental evidence of habituation. Canadian Journal of Zoology. 2010;88:81-89.

Fasola ML, Canova, N Saino. Rice fields support a large portion of herons breeding in the Mediterranean region. Ecology, conservation and management of colonial waterbirds in the mediterranean region (eds A Crivelli, H Hafner, M Fasola, RM Erwin and DA McCrimmon Jr) Colonial Waterbirds, 19 (Special Publication 1). 1996;122-128.

Fasola M, X Ruiz. The value of rice fields as substitute wetlands for waterbirds in the mediterranean region. Ecology, Conservation and management of colonial waterbirds in the mediterranean region (eds A Crivelli, H Hafner, M Fasola, R M Erwin and DA McCrimmon Jr) colonial waterbirds, 19 (Special Publication 1). 1996;122-128.

Kazantzidis S, V Goutner. Foraging ecology and conservation of feeding habitats of little egrets (Egretta garzetta) in the Axios river delta, macedonia Greece. 1996;115-121 in Ecology, conservation and management of colonial waterbirds in the Mediterranean region (AJ Crivelli, H Hafner, M Fasola, RM Erwin, DA McCrimmon, Jr Eds). Colonial Waterbirds 19 (Special Publication 1).

Elphick CS, LW Oring. Winter management of californian rice fields for waterbirds. Journal of Applied Ecology, 1998;35:95-108.

Maeda T. Patterns of bird abundance and habitat use in rice fields of the kanto plain, central Japan. Ecological Research. 2001; 16:569-585.

Knight EC, Vennesland RG, Waterbirds, Winchester NN. Importance of proximity to foraging areas for the pacific great blue heron (Ardea herodias fannini) nesting in a developed landscape. 2012;39(2):165-174.

Márcio R Gimenes, L Anjos. Quantitative analysis of foraging habitat use by ciconiiformes in the upper paraná river floodplain, Brazil. Brazilian Archives of Biology and Technology. 2011;54:415-427.

Hancock J, Kushlan J. The Herons Hand-book. Harper and Row, New York; 1984.

Kasoma PMB. The ecology of the large wading birds of kazinga channel, Queen elizabeth national park. Ph.D Thesis, Cambridge University; 1989.

Altmann J. Observational study of behavioral sampling methods. Behavior, 1974. 1958;49:227-267.

Willard DE. The feeding ecology of five species of herons in South Eastern New Jersey. Condor. 1977;79:462-470.

Quinney TE, Smith PC. Comparative foraging behaviour and efficiency in adult and juvenile great Blue Herons. Canadian Journal of Zoology. 1980;58:1168-1173.

Mock DW, KC Mock. Feeding behaviour and ecology of the goliath heron. Auk. 1980;97:433-448.

Siegfried R. Aspects of the feeding ecology of cattle egrets Ardeola ibis in South Africa. Journal of Animal. Ecology. 1972;41:71-78.

Hafner H. Creation of a breeding site for tree-nesting herons in the Camargue, Southern France. in: Managing wetlands and their birds, (DA Scott, Ed.). International Waterfowl and Wetlands Research Bureau, Slimbridge, United Kingdom. 1982;216-220.

Weller MW. Use of two waterbird guilds as evaluation tools for the Kissimmee River restoration. Restoration Ecology. 1995;3: 211-24.

Yu-Seong C, Kwon In-Ki, Jeong-Chil Y. Foraging habitat preferences of Herons and Egrets. Journal of ecological Field Biology. 2007;30:237-244.

Heyer WR, MA Donnelly, RW McDiarmid, LC Hayek, and MS Foster. Measuring and monitoring biological diversity: Standard methods for amphibians. Smithsonian Institution Press, Washington, D. C. 1994; 364.

Sutherland WJ. Ecological census techniques: A handbook. Cambridge university press, Cambridge, U.K. 1996; 336.

Gerard BM. Factors affecting earthworms in pastures. Journal of Animal Ecology. 1967;36:235-252.

Ndang'ang'a PK, Njoroge JBM, Ngamau K, Kariuki W, Atkinson PW, Vickery J. Avian foraging behaviour in relation to provision of ecosystem services in a highland East African agroecosystem. Bird Study. 2013;60:156-168. DOI: 10.1080/00063657.2012.758228

Edwards CA, Lofty JR. Biology of earthworms. Chapman and Hall, London, UK; 1972.

Greenwood PH. The fishes of Uganda. Uganda society, Kampala; 1966.

Nachuha S. Is waterbird distribution within rice paddies of eastern Uganda affected by the different stages of rice growing? In: Harebottle DM, Craig AJFK, Anderson MD, Rakotomanana H, Muchai M, edotors. Proceedings of the 12th Pan-African Ornithological Congress, Cape Town, Animal Demography Unit. 2008;44-49.

Kushlan JA. Avian use F fluctuating wetlands. Freshwater Wetlands and Wildlife, CONF-8603101, DOE Symposium Series No. 61 (eds RR Sharitz, JW Gibbons), 1989; 593-604. USDOE office of scientific and technical information, Oak ridge, TN.