Preprint Article Version 1 This version is not peer-reviewed

Estimating the Potential Habitat of Breeding Egrets and Herons (Family Ardeidae) for Urban Forest Management in Daejeon Metropolitan City, Korea

Version 1 : Received: 3 August 2018 / Approved: 3 August 2018 / Online: 3 August 2018 (11:59:19 CEST)

How to cite: Shin, M.; Lee, E.; Cho, H. Estimating the Potential Habitat of Breeding Egrets and Herons (Family Ardeidae) for Urban Forest Management in Daejeon Metropolitan City, Korea. Preprints 2018, 2018080065 (doi: 10.20944/preprints201808.0065.v1). Shin, M.; Lee, E.; Cho, H. Estimating the Potential Habitat of Breeding Egrets and Herons (Family Ardeidae) for Urban Forest Management in Daejeon Metropolitan City, Korea. Preprints 2018, 2018080065 (doi: 10.20944/preprints201808.0065.v1).

Abstract

Potential breeding habitat of egrets and herons was evaluated using the Maximum Entropy Model (MaxEnt). Model output can help guide management of nuisance egret and heron rookeries in urban forests of Daejeon Metropolitan City, Korea. This study examined 126 locations regarded as breeding sites of egrets and herons at the nationwide census conducted by the National Institute of Environmental Research between 2011 and 2012. In addition, 252 randomly selected locations were used to identify the significant variables among a total of 15 environmental variables within 4 factors (topography, natural environment, distance and climate). Twelve variables were significantly different between the breeding and randomly selected points. The final 10 variables were selected through Pearson’s correlation analysis. Using MaxEnt, breeding area was estimated using the 10 selected variables in Daejeon. The area under the receiver operating characteristic curve (AUC) was 0.950, which was the average value through 10-fold cross-validation to estimate the model reliability. The potential breeding habitat for egrets and herons was estimated to be 106.69 km2 (19.76% of the total area) in Daejeon. Within the estimated potential habitat, 11.82 km2 (12.46%) were less than 50 m from the residential district while 79.85 km2 (88.92%) were more than 50m from the residential district. Discriminative management strategies considering the breeding location of egrets and herons should be applied not only to minimize conflicts with residents, but also to maintain stable egret and heron breeding sites in Daejeon, Korea.

Subject Areas

Egrets and herons; MaxEnt; potential habitat; residential district

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Comment 1
Received: 19 August 2018
Commenter: María Napal (Click to see Publons profile: )
The commenter has declared there is no conflict of interests.
Comment: This is a fairly well done example of SDM applied to management. Statistical procrdures are clearly described and support the conclusions.
I'm only curious about the range of ecological conditions in which the birds aportar un the study. I.e., whether the sampling has been systematic or incidental, the latter probably explaining more nests being detected in more reachable áreas.
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