Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

Record number 536360
Title Insect community composition and functional roles along a tropical agricultural production gradient
Author(s) Bellamy, Angelina Sanderson; Svensson, Ola; Den Brink, Paul J. van; Gunnarsson, Jonas; Tedengren, Michael
Source Environmental Science and Pollution Research 25 (2018)14. - ISSN 0944-1344 - p. 13426 - 13438.
DOI https://doi.org/10.1007/s11356-018-1818-4
Department(s) WIMEK
Aquatic Ecology and Water Quality Management
Alterra - Environmental risk assessment
Publication type Refereed Article in a scientific journal
Publication year 2018
Keyword(s) Banana production - Costa Rica - Ecosystem services - Functional roles - Insect diversity - Management practices
Abstract High intensity agricultural production systems are problematic not only for human health and the surrounding environment, but can threaten the provision of ecosystem services on which farm productivity depends. This research investigates the effects of management practices in Costa Rica on on-farm insect diversity, using three different types of banana farm management systems: high-input conventional system, low-input conventional system, and organic system. Insect sampling was done using pitfall and yellow bowl traps, left for a 24-h period at two locations inside the banana farm, at the edge of the farm, and in adjacent forest. All 39,091 individual insects were classified to family level and then morphospecies. Insect species community composition and diversity were compared using multivariate statistics with ordination analysis and Monte Carlo permutation testing, and revealed that each of the management systems were significantly different from each other for both trap types. Insect diversity decreased as management intensity increased. Reduced insect diversity resulted in fewer functional groups and fewer insect families assuming different functions essential to ecosystem health. Organic farms had similar species composition on the farm compared to adjacent forest sites, whereas species composition increasingly differed between farm and forest sites as management intensity increased. We conclude that while organic production has minimal impact on insect biodiversity, even small reductions in management intensity can have a significantly positive impact on on-farm insect biodiversity and functional roles supported.
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