Southern Bird | |
Analysis of the impacts of a water channel diversion wall on waterbirds inhabiting the western end of Lake Rotoiti, Bay of Plenty, New Zealand | Notornis and Birds New Zealand | |
Shaw, W1  Smith, D1  Bycroft, C1  McClellan, R1  Gillies, R1  | |
关键词: Bird counts; Lake Rotoiti; little black shags; Phalacrocorax melanoleucos; water diversion; waterfowl; | |
DOI : | |
学科分类:农业科学(综合) | |
来源: Ornithological Society of New Zealand Inc. | |
【 摘 要 】
CyanobacterialbloomsinLakeRotoitihavebeenlinkedtonutrientflowsfromLakeRotoruaviatheOhauChannel.Tomitigatethis,adiversionwallwasconstructedin2008thatwasdesignedtoredirectwaterenteringLakeRotoitifromLakeRotoruaintotheKaitunaRiver.Oneconcernwaswhetherthepresenceofthediversionwallmighthaveadverseimpactsontheabundanceofbirdsusingthelake.Monthlybirdcountswereundertakenat8sitesinLakeRotoiti,over8years,andwhichspannedtheperiodbefore,duringandafterconstructionofthewall.GeneralisedlinearmixedeffectmodelsandAICwereusedtoinvestigateanyeffectsofthewallon6birdspecies.Therewasnoapparentimpactofthewallon5ofthespecies.Thesixthspecies,littleblackshag(Phalacrocoraxmelanoleucos),wasmoreabundantinsitessurroundingthewallpost-construction,andappearedtobeusingthewallforroostingandtohuntforsmelt.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
---|---|---|---|
RO201912090835296ZK.pdf | 993KB | download |