Effects of changes in plant species richness and community traits on carabid assemblages and feeding guilds

Harvey, Jeffrey A.; Putten, Wim H. van der; Turin, H.; Wagenaar, R.; Bezemer, T. Martijn

doi:10.1016/j.agee.2008.03.006

Cited by 69 publications

(52 citation statements)

References 25 publications

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“…Biodivers Conserv (2010) 19:3255-3268 3263 biomass being available to provide food for more individuals (e.g., McFarlin et al 2008) and more shelter against predators, which appear to be less abundant in these situations anyway (this study; Harvey et al 2008). More than half the herbivores counted were Gastropoda, but Cicadellidae and Aphidoidea were also caught in high numbers.…”

Section: Invertebrate Richness and Abundancesmentioning

confidence: 65%

“…We found herbivore abundance to be favoured by the width of the margin, but most significantly by the age of field margin and vegetation cover in summer (see also Meek et al 2002;Harvey et al 2008). This latter relationship can be explained by more plant Table 2 Significant relations between field margin age and site-specific variables; in a few cases, data for certain margins were lacking (number of replicates is given below each average) Variable (unit); transformation, test …”

Section: Invertebrate Richness and Abundancesmentioning

confidence: 72%

“…Predator abundance decreased with progressing age of the margins (in contrast to Denys and Tscharntke 2002, but in line with Woodcock et al 2008), due probably to the vegetation developing from a recently sown, open situation to higher standing biomass and a denser sward, although in our analyses this development was only expressed by a significant effect of age (Noordijk et al 2010). Ground-dwelling predatory invertebrates often depend on open, sun-lit places where they can easily move to find prey (Harvey et al 2008). Those species potentially invading the arable fields have a particular preference for the open vegetation in the margins, as this is quite similar to conditions in the fields themselves (Samu and Szinetar 2002).…”

Section: Invertebrate Richness and Abundancesmentioning

confidence: 99%

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Invertebrates in field margins: taxonomic group diversity and functional group abundance in relation to age

et al. 2010

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Sown, temporary field margins are a common agri-environment scheme (AES) in the Netherlands. Despite their wide application, though, there has been scarcely any long-term monitoring of the succession of invertebrates. In the field margins of 40 farms, invertebrate diversity and the abundance of three functional groups were assessed in relation to age. The diversity in terms of number of species groups was found to increase with the age of the margins. The abundance of herbivores and detritivores also showed a positive correlation with the age of the margins. However, the abundance of predators decreased with increasing age. Older margins showed a higher total vegetation cover and fewer plant species, also resulting in lower plant species evenness. We suggest several changes to the current AES regulations. For the conservation of invertebrate diversity, longer-lasting field margins are desirable. In addition, old margins are favoured by detritivores, a group that has particular difficulty finding suitable habitats in agricultural landscapes. However, such margins are less favourable from an agricultural perspective, as they appear unsuitable for high abundances of potentially useful predators and the high vegetation cover attracts many potentially harmful herbivores. To circumvent this, the AES might be extended by incorporating hay-making, which would reduce standing biomass and might lead to more predators and fewer herbivores.

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Section: Invertebrate Richness and Abundancesmentioning

confidence: 65%

Section: Invertebrate Richness and Abundancesmentioning

confidence: 72%

Section: Invertebrate Richness and Abundancesmentioning

confidence: 99%

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Invertebrates in field margins: taxonomic group diversity and functional group abundance in relation to age

et al. 2010

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“…Plant diversity has long been recognized as an important factor determining the diversity of organisms at higher trophic levels (Harvey et al, 2008). The intimate relationship between plant and arthropods composition is complex and beyond the scope of this study.…”

Section: Discussionmentioning

confidence: 96%

Epigeic soil arthropod abundance under different agricultural land uses

Pérez‐Bote

Romero

2012

Span. j. agric. res.

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The study of soil arthropods can provide valuable information how ecosystems respond to different management practices. The objective was to assess the total abundance, richness, and composition of epiedaphic arthropods in different agrosystems from southwestern Spain. Six sites with different agricultural uses were selected: olive grove, vineyards, olive grove with vineyards, wheat fields, fallows (150-300 m long), and abandoned vineyards. Crops were managed in extensive. Field margins were used as reference habitats. At the seven sites a total of 30 pitfall traps were arranged in a 10 × 3 grid. Traps were arranged to short (SD, 1 m), medium (MD, 6 m) and large (LD, 11 m) distance to the field margins in the middle of selected plots. Pitfall traps captured a total of 11,992 edaphic arthropods belonging to 11 different taxa. Soil fauna was numerically dominated by Formicidae (26.60%), Coleoptera (19.77%), and Aranae (16.76%). The higher number of soil arthropods were captured in the field margins followed by the abandoned vineyard. Significant differences were found between sites for total abundance, and zones. However, no significant differences for total abundance were found between months (April-July). Richness and diversity was highest in field margins and abandoned vineyards. Significant differences were found for these variables between sites. Our results suggest that agricultural intensification affects soil arthropods in Tierra de Barros area, a taxonomic group with an important role in the functioning of agricultural ecosystems.Additional key words: abundance; agrosystems; diversity; field margins. Resumen Abundancia de artrópodos epigeos en parcelas con diferentes cultivosEl estudio de los artrópodos puede aportar información de interés de cómo los ecosistemas responden a las diferentes prácticas de manejo del suelo. El objetivo de este estudio fue determinar la abundancia, la riqueza y la composición de artrópodos epigeos en diferentes agrosistemas del suroeste de España. Se seleccionaron seis parcelas con diferentes usos agrícolas: olivar, viñedo, plantación mixta de viñedo-olivar, cereal, barbecho y viñedo abandonado, utilizándose los linderos como sistemas de referencia. En cada parcela se colocaron 30 trampas de caída en una cuadrícula de 10 × 3, de modo que cada línea de trampas quedó colocada a una distancia corta (SD, 1 m), media (MD, 6 m) o grande (LD, 11 m) de los linderos. Se capturaron un total de 11.992 artrópodos edáficos, pertenecientes a 11 taxa diferentes. Numéricamente la fauna del suelo estaba dominada por Formicidae (26,60%), Coleoptera (19,77%) y Aranae (16,76%). El mayor número de artrópodos se capturó en los linderos y en la viña abandonada, encontrándose diferencias significativas en la abundancia entre las diferentes parcelas y las zonas donde se ubicaron las líneas de trampas. Sin embargo, no se encontraron diferencias entre los distintos meses estudiados (abril-julio). La riqueza y la diversidad fue mayor en los linderos y en la viña abandonada, encontrándose diferenc...

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“…Yearly differences in assemblage structure are attributed to individual species responses to seasonal changes in weather conditions or other stochastic environmental variations (Davis et al, 2003;Wassenaar et al, 2005), but three years of weather data is insufficient for determining whether it was an important factor (Dennis et al, 2008). In addition, temporal changes in the vegetation might be expected to affect the fauna due to the associated changes in the structure of micro-habitats (Harvey et al, 2008).…”

Section: Discussionmentioning

confidence: 99%

Ground-dwelling arthropod communities present in three types of Cantabrian (NW Spain) heathland grazed by sheep or goats

García¹,

Ocharan²,

Jáuregui³

et al. 2010

Eur. J. Entomol.

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Abstract. The abundance, diversity and community composition of ground-dwelling arthropods present in three different types of Cantabrian heathland grazed by small ruminants were studied. A factorial design of three vegetation types (heather-, gorse-or grassdominated) and two grazer species (sheep or goats) with two replicates was established in twelve 0.6 ha paddocks. Ground-dwelling arthropods (Araneae, Opiliones, Isopoda, Julida, Microcoryphia, Hemiptera, Coleoptera and Hymenoptera) were recorded using pitfall traps and plant cover and canopy height assessed in each paddock in 2005, 2006 and 2007. Higher abundances and more families of ground dwelling arthropods were recorded in areas dominated by heather, although certain species were more numerous in areas dominated by grass. The direct effects of the grazer species on arthropods were subtle compared to their great effect on the vegetation. Significant interactions between grazer species and vegetation were observed for some taxa and the overall arthropod community composition. Gradient analyses indicate that arthropod assemblages that include Lycosidae, Opiliones and Carabidae differed between vegetation types and years, but are not affected by the grazer species. Our study shows that areas dominated by shrubby and diverse heather had the highest diversity and abundance of arthropods. Species composition varied along a gradient in the structure of the vegetation, which in turn was modified by the grazer species.

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Effects of changes in plant species richness and community traits on carabid assemblages and feeding guilds

Cited by 69 publications

References 25 publications

Invertebrates in field margins: taxonomic group diversity and functional group abundance in relation to age

Invertebrates in field margins: taxonomic group diversity and functional group abundance in relation to age

Epigeic soil arthropod abundance under different agricultural land uses

Ground-dwelling arthropod communities present in three types of Cantabrian (NW Spain) heathland grazed by sheep or goats

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