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The role of anthropogenic disturbance and invasion of yellow crazy ant in a recent decline of land crab population

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dc.contributor.authorLee, Ching-Chenen
dc.contributor.authorChiu, Ming-Chungen
dc.contributor.authorShih, Chun-Hanen
dc.contributor.authorYang, Chin-Cheng Scottyen
dc.contributor.authorLiu, Hung-Changen
dc.contributor.authorLin, Chung-Chien
dc.date.accessioned2022-04-20T14:57:13Zen
dc.date.available2022-04-20T14:57:13Zen
dc.date.issued2021-06-10en
dc.description.abstractThe yellow crazy ant, Anoplolepis gracilipes was first reported in Kenting National Park, Taiwan, in the 2000s, raising the concern of this invasive ant's potential effects on the native land crab populations. We investigated the distribution and abundance of A. gracilipes and its adverse effect on the land crab populations at four land crab hotspots within the park. Our survey results indicated that A. gracilipes was widespread and abundant at three of the study sites (Hsiangchiaowan, Shadao, and Natural Spring), while the distribution was much more confined at the fourth site (Houwan). Land crab populations experienced a notable decline at all the study sites except Houwan, indicating an inverse relationship between the population of land crabs and distribution/abundance of A. gracilipes. Combining the results of visual observations, the decline of land crab populations can be attributed, at least partially, to direct attacks by A. gracilipes on land crabs in their natural habitat and during the breeding migration season. Generalized additive model showed that worker abundance of this ant is associated with human disturbance levels, suggesting that anthropogenic disturbance may have contributed to the decline in land crab populations via promoting the abundance of A. gracilipes.en
dc.description.notesWe thank Kenting National Park Headquarters for supporting this study (Grant Number: 486-105-01-528). The authors also wish to thank Mei-Yin Yang for providing land crab data at Houwan area. We are grateful to Chung-Te Chang for his assistance in the preparation of study area map. Thanks also go to Po-Cheng Hsu for his technical assistance in the field. Particular thanks are due to Jheng-Jhang Li from East Peak Ecological Consultants Inc. and National Sun Yat-sen University for providing information on the land crab diversity in Kenting National Park.en
dc.description.sponsorshipKenting National Park Headquarters [486-105-01-528]en
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1038/s41598-021-91732-zen
dc.identifier.issn2045-2322en
dc.identifier.issue1en
dc.identifier.other12234en
dc.identifier.pmid34112879en
dc.identifier.urihttp://hdl.handle.net/10919/109704en
dc.identifier.volume11en
dc.language.isoenen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.titleThe role of anthropogenic disturbance and invasion of yellow crazy ant in a recent decline of land crab populationen
dc.title.serialScientific Reportsen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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