Extrapolation of random forest models shows scale adaptation in egret colony site selection against landscape complexity

Carrasco, Luis; Toquenaga, Yukihiko; Mashiko, Miyuki

doi:10.1016/j.ecocom.2015.08.002

Cited by 10 publications

(3 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The flooded fields and irrigation ditches support large numbers of foraging herons and egrets (Lane and Fujioka 1998). Breeding habitat was homogeneously distributed here; when we gridded the entire study area into 915-m x 915-m cells, 94.5% of the cells contained at least one pixel (45.7 m x 45.7 m) of trees or bamboo, primarily moso bamboo (Phyllostachys pubescens), Simon bamboo (Pleioblastus simonii) or dwarf bamboo (P. chino), thickets that are potential breeding sites for herons and egrets (Carrasco et al 2014(Carrasco et al , 2015Fig. 2).…”

Section: Study Areamentioning

confidence: 99%

“…We analyzed 51 years of colony data for the northern Kanto Plain, Japan. Since the breeding and foraging habitats are homogeneously distributed (Carrasco et al 2014(Carrasco et al , 2015 and human disturbance occurs frequently in the area, we hypothesized that colony lineages with site fidelity should be characterized by: 1) not one-year but rather multiple-year persistence periods; and 2) not untangled but rather entangled shapes of historical trajectories.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Site Fidelity in Lineages of Mixed–Species Heron Colonies

Mashiko

Toquenaga

2018

Waterbirds

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Study Areamentioning

confidence: 99%

mentioning

confidence: 99%

Site Fidelity in Lineages of Mixed–Species Heron Colonies

Mashiko

Toquenaga

2018

Waterbirds

Self Cite

View full text Add to dashboard Cite

show abstract

“…consensus decisions in which the group makes a single collective choice, in establishing new colony locations and returning to previously used colonies (Deneubourg and Goss , Couzin ). As direct observation of collective decisions is difficult (Kerth ), many authors have studied how new breeding locations were selected by modeling preferred or avoided habitats for different spatial scales (Heina nen et al , Kelly et al ) or for different spatial configurations (Carrasco et al ). Despite the fact that many colonial birds, such as many seabirds and ardeids species, show breeding site fidelity, none of the aforementioned studies include site fidelity within their statistical models.…”

mentioning

confidence: 99%

Balance between site fidelity and habitat preferences in colony site selection by herons and egrets

Carrasco

Toquenaga

Mashiko

2017

Journal of Avian Biology

Self Cite

View full text Add to dashboard Cite

Habitat selection in avian species is a hierarchical process driven by different factors acting at multiple scales. Habitat preferences and site fidelity are two main factors affecting how colonial birds choose their breeding locations. Although these two factors affect how colonial species choose their habitats, previous studies have only focused on one factor at a time to explain the distribution of species at regional scales. Here we used 28 yr of colony location data of herons and egrets around Ibaraki prefecture in Japan in order to analyze the relative importance of habitat preferences and colony site fidelity for selecting breeding locations. We used Landsat satellite images together with a ground survey-based map to create land-use maps for past years and determine the habitats surrounding the herons and egrets colonies. Combining the estimated colony site fidelity with the habitat data, we used a random forest algorithm to create habitat selection models, which allowed us to analyze the changes in the importance of those factors over the years. We found high levels of colony site fidelity for each year of study, with its relative importance as a predictor for explaining colony distribution increasing drastically in the most recent five years. The increase in collective site fidelity could have been caused by recent changes in the population size of grey herons Ardea cinerea, a key species for colony establishment. We observed a balance between habitat preferences and colony site fidelity: habitat preferences were a more powerful predictor of colony distribution until 2008, when colony site fidelity levels were lower. Considering changes in the relative importance of these factors can lead to a better understanding of the habitat selection process and help to analyze bird species' responses to environmental changes.

show abstract

Cuckoo density as a predictor of functional and phylogenetic species richness in the predictive modelling approach: Extension of Tryjanowski and Morelli (2015) paradigm in the analytical context

Kosicki

Hromada

2018

Ecological Indicators

View full text Add to dashboard Cite

Extrapolation of random forest models shows scale adaptation in egret colony site selection against landscape complexity

Cited by 10 publications

References 44 publications

Site Fidelity in Lineages of Mixed–Species Heron Colonies

Site Fidelity in Lineages of Mixed–Species Heron Colonies

Balance between site fidelity and habitat preferences in colony site selection by herons and egrets

Cuckoo density as a predictor of functional and phylogenetic species richness in the predictive modelling approach: Extension of Tryjanowski and Morelli (2015) paradigm in the analytical context

Contact Info

Product

Resources

About