Waterbird Foraging Habitat Selection in Balikpapan Bay: Water Depth and Patch Area as Important Factors

  • Alexander Kurniawan Sariyanto Putera Graduate Program of Animal Biosciences, Department of Biology, Faculty of Mathematics and Natural Sciences, IPB University, Indonesia
  • Dyah Perwitasari-Farajallah Department of Biology, Faculty of Mathematics and Natural Sciences, IPB University, Indonesia
  • Yeni Aryati Mulyani Department of Conservation of Forest and Ecotourism, Faculty of Forestry and Environment, IPB University, Indonesia
  • Stanislav Lhota Wildlife Management and Conservation Research Group, Department of Animal Science and Food Processing, Faculty of Tropical AgriSciences, Czech University of Life Sciences Prague, Czech Republic
  • Riki Herliansyah Department of Statistics, Institut Teknologi Kalimantan, Balikpapan, Indonesia
  • Sodikin Sodikin Department of Biology, Faculty of Science and Technology, UIN Sunan Gunung Djati, Bandung, Indonesia

Abstract

Balikpapan Bay is one of the wetlands providing potential foraging habitat for waterbirds in Indonesia. Potential habitat loss due to oil industry expansion, recent waterbird occurrence, and co-occurrence of two closely related species with similar foraging characteristics led to habitat selection. Habitat selection could be affected by food as an intrinsic factor and extrinsic factor, for example, accessibility to the physical and biological components of the habitat. This study aimed to measure the foraging habitat selection, identify significant habitat quality parameters for the habitat selection and predict the foraging habitat selection model. We used one-zero sampling for collecting foraging habitat selection data, corer sampling for prey data, and collecting the abiotic environment, and Generalized Linear Modelling (GLM) to build the model. We identified four species as the migrant Little Egret (Egretta garzetta), Great Egret (Ardea alba), Purple Heron (Ardea purpurea), and Lesser Adjutant (Leptoptilos javanicus). All species, except Purple Heron, selected foraging habitats. A simple mathematic model of foraging habitat selection was significantly affected by two factors: water depth and patch area. A large patch area may provide primary prey abundance for waterbirds, while a low water depth level may give easy access to the prey.

Downloads

Download data is not yet available.
Published
2021-09-29
How to Cite
Putera, A. K. S., Perwitasari-Farajallah, D., Mulyani, Y. A., Lhota, S., Herliansyah, R., & Sodikin, S. (2021). Waterbird Foraging Habitat Selection in Balikpapan Bay: Water Depth and Patch Area as Important Factors. HAYATI Journal of Biosciences, 28(4), 312-324. https://doi.org/10.4308/hjb.28.4.312-324