Can a native rodent species limit the invasive potential of a non‐native rodent species in tropical agroforest habitats?
作者： Alexander M Stuart , Colin V Prescott , Grant R Singleton
DOI: 10.1002/PS.4095
关键词: Rattus everetti 、 Ecology 、 Biology 、 Habitat 、 Introduced species 、 Integrated pest management 、 Invasive species 、 Rodent 、 Interspecific competition 、 Pest control
摘要: BACKGROUND Little is known about native and non-native rodent species interactions in complex tropical agroecosystems. We hypothesised that the non-pest Rattus everetti may be competitively dominant over invasive pest tanezumi within agroforests. tested this experimentally by using pulse removal for three consecutive months to reduce populations of R. agroforest habitat, assessed 6 response other species. RESULTS Following removal, individuals rapidly immigrated into sites. At end study period, were larger there was a significant shift their microhabitat use with respect ground vegetation cover following perturbation everetti. Irrespective treatment, selected less tree canopy cover, indicative severely disturbed whereas dense canopy. CONCLUSION Our results suggest sustained habitat disturbance agroforests favours tanezumi, while regeneration towards more natural state would favour pressure adjacent crops. In addition, rapid recolonisation suggests able recover from non-target impacts short-term control. © 2015 Society Chemical Industry
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