Journal article
Impact of an invasive clonal herb on epigaeic invertebrates in forest remnants in New Zealand
Biological Conservation, Vol.116(1), pp.49-58
2004
Abstract
This study determines the impact of an invasive herbaceous weed Tradescantia fluminensis on invertebrates within three lowland podocarp/ broadleaved forest remnants in southern North Island, New Zealand. Epigaeic invertebrates were sampled within three Tradescantia-infested plots and three non-infested plots at each of three sites using pitfall traps. The abundance of invertebrates was reduced in Tradescantia plots compared with non-Tradescantia plots if Collembola and Acarina, the two most abundant and variable orders, are excluded (647±123 (mean±SE) compared with 1153±370), though this difference is not statistically significant. There was no difference if they were included (3897±2530 compared with 2505±1095). Five of the 23 orders collected were sorted into recognisable taxonomic units (RTUs). RTU richness was lower in Tradescantia plots compared with non-Tradescantia plots (39.7±5.5 compared with 51.7±8.9) though there was weak statistical support. Detrended correspondence analyses separated Tradescantia and non-Tradescantia plots within sites when based on RTUs, but not when based on orders/families. Overall, impacts of Tradescantia were apparent despite large differences in invertebrate assemblages among sites. The impact of Tradescantia could be a result of the weed's tall, dense vegetation structure and associated microclimate, relative to native ground covers.
Details
- Title
- Impact of an invasive clonal herb on epigaeic invertebrates in forest remnants in New Zealand
- Authors/Creators
- R.J. Standish (Author/Creator) - Massey University
- Publication Details
- Biological Conservation, Vol.116(1), pp.49-58
- Publisher
- Elsevier BV
- Identifiers
- 991005544943707891
- Copyright
- © 2003 Elsevier Ltd.
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
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Source: InCites
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- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.40 Forestry
- 3.40.86 Plant Communities
- Web Of Science research areas
- Biodiversity Conservation
- Ecology
- Environmental Sciences
- ESI research areas
- Environment/Ecology