TY - JOUR A1 - Oldeland, Jens A1 - Eibes, Pia Maria A1 - Irl, Severin David Howard A1 - Schmiedel, Ute T1 - Do image resolution and classifier choice impact island biogeographical parameters of terrestrial islands? Y1 - 2022-03-29 VL - 26 IS - 4 SP - 2004 EP - 2022 JF - Transactions in GIS DO - 10.1111/tgis.12920 PB - N2 - Island biogeography provides concepts for conservation management as fragmented habitats are comparable to ocean islands. Remote sensing can help to extract terrestrial habitat islands on the landscape scale. However, little is known about the effects of image resolution and classification algorithms on resulting island size and related parameters. We study the combined effect of three image resolutions (2, 10, and 30 m) and three classification algorithms (Artificial Neural Network, Random Forest, Support Vector Machine) by extracting quartz islands from WorldView‐2 imagery using image segmentation. We compared four island parameters (i.e., area, distance, shape index, and perimeter–area ratio between resolutions and classifiers). We found that in all cases, image resolution and classification algorithms had a strong effect. However, image resolution was more important for area and shape. Artificial Neural Network always provided the best performance as a classifier (OA: 0.880, kappa: 0.801, F1: 0.912). Hence, conservation strategies could lead to different results when different pattern extraction strategies are applied. Future studies which aim at extracting terrestrial habitat islands from image datasets should aim for the highest possible resolution and compare the outcomes of different classifiers to ensure the best possible results. UR - http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/10261 ER -