Predicting the distribution of released Oriental White Stork (Ciconia boyciana) in central Japan

Yumi Yamada, Satoru Itagawa, Takehito Yoshida, Mariko Fukushima, Jun Ishii, Masao Nishigaki, Tomohiro Ichinose

Research output: Contribution to journalArticle

Abstract

The Oriental White Stork (Ciconia boyciana) is one of the species threatened by mainly anthropogenic factor and their habitats are considered to be conserved. The first reintroduction of the species in Japan occurred in 2005. But as the species' natural wetland habitats are declining, the birds now prefer to forage in rice paddies. Thus, restoring the paddy-dominated landscape is key for further success in the reintroduction program. In addition, a quantitative method is urgently needed to assess how much suitable habitat is available and where it is located. In this study, we identified environmental factors that affect the distribution of the Oriental White Stork and produced the first predictive spatial distribution map using 2-year satellite tracking data of reintroduced individuals. The maximum entropy (MaxEnt) approach was used to model the species' distribution at the landscape scale (1 km × 1 km grid cells). We identified six relevant environmental variables. Our results highlight the proportion of area of rice paddies as alternative wetland habitat as the most influential variable affecting the distribution positively. Landscape diversity represented by a complex mosaic of paddies and forest is also important for the species, as total length of paddy–forest edge also had a positive effect on habitat suitability. Our predictive distribution map cannot entirely provide distribution; however, it may be valuable information when considering where should be conserved as habitat to maintain the Oriental White Stork population in Japan.

Original languageEnglish
JournalEcological Research
DOIs
Publication statusAccepted/In press - 2019 Jan 1

Fingerprint

Japan
paddies
habitat
habitats
reintroduction
wetlands
rice
species reintroduction
wetland
environmental factors
entropy
threatened species
remote sensing
forage
Ciconia boyciana
distribution
quantitative analysis
environmental factor
biogeography
spatial distribution

Keywords

  • habitat distribution
  • MaxEnt
  • Oriental White Stork (Ciconia boyciana)
  • rice paddies

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics

Cite this

Predicting the distribution of released Oriental White Stork (Ciconia boyciana) in central Japan. / Yamada, Yumi; Itagawa, Satoru; Yoshida, Takehito; Fukushima, Mariko; Ishii, Jun; Nishigaki, Masao; Ichinose, Tomohiro.

In: Ecological Research, 01.01.2019.

Research output: Contribution to journalArticle

Yamada, Yumi ; Itagawa, Satoru ; Yoshida, Takehito ; Fukushima, Mariko ; Ishii, Jun ; Nishigaki, Masao ; Ichinose, Tomohiro. / Predicting the distribution of released Oriental White Stork (Ciconia boyciana) in central Japan. In: Ecological Research. 2019.
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