The distribution of soil insects across three spatial scales in agricultural grassland

A - Papers appearing in refereed journals

Benefer, C. M., D'Ahmed, K. S., Blackshaw, R. P., Sint, H. M. and Murray, P. J. 2016. The distribution of soil insects across three spatial scales in agricultural grassland. Frontiers in Ecology and Evolution. 4, p. 41.

AuthorsBenefer, C. M., D'Ahmed, K. S., Blackshaw, R. P., Sint, H. M. and Murray, P. J.
Abstract

The effects of specific environmental factors on abundance and distribution of some individual soil insect taxa is known, but how scale influences spatial distribution is less well evaluated, particularly at the community level. However, given that many soil insects are pests or beneficial natural enemies, and that collectively they play a role in soil processes, this information is of potential value for predictive modeling and in furthering our understanding of soil ecology and management. The objectives of this study were to characterize the spatial distribution, relative population sizes, effect of sampling scale and taxa co-occurrence on a range of soil insects at the family level over 2 years. Soil cores were taken from agricultural grassland soils across three different sampling scales (farm, field, and core) using a systematic sampling approach. Spatial distribution was assessed using the variance-to-mean (VMR) ratio and taxa distribution plots and the contribution of scale, spatial (geographical location), and biotic (presence-absence of other species) factors determined using deviance partitioning. Tipulid larvae (leatherjackets) were the most abundant taxa in both years, but the composition of other Dipteran and Coleopteran taxa varied between years. The VMRs revealed differences in spatial distribution between taxa across scales and years, showing a range of underlying distributional patterns. Scale was the most important factor influencing species distributions, but a large proportion of deviance remained unexplained and there was much variation between taxa, suggesting biological and scale-specific factors are driving distributions, in agreement with a previous study.

Keywordsdeviance partitioning; variance-to-mean ratio; Tipulidae; pest; belowground; soil communities
Year of Publication2016
JournalFrontiers in Ecology and Evolution
Journal citation4, p. 41
Digital Object Identifier (DOI)doi:10.3389/fevo.2016.00041
Open accessPublished as ‘gold’ (paid) open access
FunderBiotechnology and Biological Sciences Research Council
Funder project or codeThe North Wyke Farm Platform [2012-2017]
Publisher's version
Copyright license
CC BY
Output statusPublished
Publication dates
Online21 Apr 2016
Publication process dates
Accepted04 Apr 2016
PublisherFrontiers Media SA
ISSN2296-701X

Permalink - https://repository.rothamsted.ac.uk/item/8v238/the-distribution-of-soil-insects-across-three-spatial-scales-in-agricultural-grassland

24 total views
35 total downloads
1 views this month
0 downloads this month
Download files as zip