Quantification of motility of carabid beetles in farmland

Allema, A.B.; Werf, Wopke Van der; Groot, J.C.J.; Hemerik, Lia; Gort, Gerrit; Rossing, W.A.H.; Lenteren, J.C. van

doi:10.1017/s0007485315000012

Cited by 7 publications

(12 citation statements)

References 39 publications

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“…Population redistribution in a homogeneous habitat can be modelled using Fokker‐Planck diffusion (Turchin, ; Ovaskainen, ), whereas behavioural responses to habitat interfaces can be modelled using preference indices (Cantrell & Cosner, ; Ovaskainen & Cornell, ; Maciel & Lutscher, ). The parameter representing the rate of population spread in a Fokker‐Planck modelling framework is denoted as motility with unit m 2 day −1 (Turchin, ; Allema et al, ). Motility in the Fokker‐Planck equation is similar to diffusivity in the Fickian diffusion model, but whereas diffusion evens out differences in density between adjacent habitats, even if the diffusivity is spatially heterogeneous, the same is not the case for a Fokker‐Planck model (Turchin, ).…”

Section: Introductionmentioning

confidence: 99%

Dispersal of a carabid beetle in farmland is driven by habitat‐specific motility and preference at habitat interfaces

Allema

Hemerik

Rossing

et al. 2019

Entomologia Exp Applicata

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Carabid beetles are common predators of pest insects and weed seeds in agricultural systems. Understanding their dispersal across farmland is important for designing farms and landscapes that support pest and weed biological control. Little is known, however, about the effect of farmland habitat discontinuities on dispersal behaviour and the resulting redistribution of these beetles. We released 1,985 well‐fed and 1,680 food‐deprived individuals of the predatory carabid beetle Pterostichus melanarius (Illiger) (Coleoptera: Carabidae) on a farm in Wageningen, The Netherlands. We recaptured 23.6% of those beetles over a period of 23 days in 2010. The farmland comprised agricultural fields with various crop species and tillage, separated by strips of perennial vegetation. We developed discrete Fokker‐Planck diffusion models to describe dispersal based on motility (m2 day−1) and preferential behaviour at habitat interfaces. We used model selection and Akaike’s information criterion to determine whether movement patterns were driven by variation in motility between habitats, preferential behaviour at habitat interfaces, or both. Model selection revealed differences in motility among habitats and gave strong support for preferential behaviour at habitat interfaces. Behaviour at interfaces between crop and perennial vegetation was asymmetric, with beetles preferentially moving towards the crop. Furthermore, beetles had lower motility in perennial strips than in arable fields. Also between arable habitats movement was asymmetric, with beetles preferentially moving towards the habitat in which motility was lowest. Neither crop type nor tillage explained differences in motility between crop habitats. Recapture data representing dispersal patterns of beetles were best described by a model that accounted for differences in motility between farmland habitats and preferential behaviour at habitat interfaces. Motility in farmland and behaviour at interfaces can also be estimated for other organisms and farmland habitats to support design of farmland conducive to natural pest suppression. Landscape design for early recruitment of carabids into arable fields should take into account the quantity and quality of resource habitats in the landscape, their proximity to crop fields, movement rates, and the possibility of movement responses at interfaces between landscape elements.

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Section: Introductionmentioning

confidence: 99%

Dispersal of a carabid beetle in farmland is driven by habitat‐specific motility and preference at habitat interfaces

Allema

Hemerik

Rossing

et al. 2019

Entomologia Exp Applicata

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“…There is empirical evidence that insect activity can depend on habitat structure, for example, the meta‐analysis by Allema et al. () showed that mobility rates of Carabid beetles (Carabidae) is approximately 5.6 times as high in farmland as in woody habitat. In particular, those species associated with forested habitats had greater mobility than those associated with open field habitats, both in arable land and woody habitat.…”

Section: Resultsmentioning

confidence: 99%

“…high dispersal rates have been recorded for Carabid beetles (Coleoptera: Carabidae) in farmland in contrast to lower rates measured in woody habitats, see table 2 in Allema et al. (). Capture rates are strongly influenced if the movement paths are correlated, i.e. if insects exhibit memory, such as recollection of previous locations.…”

Section: Discussionmentioning

confidence: 96%

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Analysing the impact of trap shape and movement behaviour of ground‐dwelling arthropods on trap efficiency

Ahmed

Petrovskii

2019

Methods Ecol Evol

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The most reliable estimates of the population abundance of ground‐dwelling arthropods are obtained almost entirely through trap counts. Trap shape can be easily controlled by the researcher, commonly the same trap design is employed in all sites within a given study. Few researchers really try to compare abundances (numbers of collected individuals) between studies because these are heavily influenced by environmental conditions, e.g. temperature, habitat structure and food sources available, directly affecting insect movement activity. We propose that useful insights can be obtained from a theoretical‐based approach. We focus on the interplay between trap shape (circle, square, slot), the underlying movement behaviour and the subsequent effect on captures. We simulate trap counts within these different geometries whilst considering movement processes with clear distinct properties, such as Brownian motion (BM), the correlated random walk (CRW) and the Lévy walk (LW). (a) We find that slot shaped traps are far less efficient than circular or square traps assuming same perimeter length, with differences which can exceed more than two‐fold. Such impacts of trap geometry are only realized if insect mobility is sufficiently large, which is known to significantly vary depending on type of habitat. (b) If the movement pattern incorporates localized forward persistence then trap counts accumulate at a much slower rate, and this rate decreases further with higher persistency. (c) If the movement behaviour is of Lévy type, then fastest catch rates are recorded in the case of circular trap, and the slowest for the slot trap, indicating that trap counts can strongly depend on trap shape. Lévy walks exacerbate the impact of geometry while CRW make these differences more inconsequential. In this study we reveal trap efficiencies and how movement type can alter capture rates. Such information contributes towards improved trap count interpretations, as required in ecological studies which make use of trapping systems.

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“…Dispersal (i.e., the spatial redistribution of populations) is one of the most significant components of entomological population ecology, behavioral ecology and conservation [ 1 – 4 ]. Because dispersal is (in part) random movement of individuals, which underlies the redistribution in space of a population [ 5 – 8 ], there is a close relationship between movement (i.e., the spatial behavior of individuals) and dispersal. Movement of insects is of central importance for them to avoid natural enemies [ 9 ], search for food [ 10 , 11 ], secure mates [ 12 ], and find suitable habitats [ 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

Movement Behavior and Host Location Ability of Corythucha ciliata

Liu

2016

PLoS ONE

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Insect movement behavior is highly important in entomological population ecology, behavioral ecology and conservation, and in invasion ecology. In this study, we used an exotic lace bug (Corythucha ciliata) as a model organism to address the hypothesis that an insect species invading a new area has a high host location ability and rapid mobility by which it can be successfully carried to a new habitat. To test this hypothesis, three movement parameters (speed, duration and distance) of C. ciliata were assessed using laboratory and field observations. We found that 5th-instar nymphs of C. ciliata could move as far as 750 cm throughout their lifespan and that they moved an average of 0.038 m/min during the first 15 minutes after release, which was significantly farther than that of other instars. Of the tested nymphs, 21.85% could locate their host trees; of adults released 20 m from hosts, 11% reached the host trees on the first day, with an average flight distance of 22.14 m and a maximum flight distance of 27 m. The results of this study partly explain the mechanism of rapid diffusion. These results are also important for predicting population spread, improving eradication surveys, and managing future introductions of C. ciliata.

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Quantification of motility of carabid beetles in farmland

Cited by 7 publications

References 39 publications

Dispersal of a carabid beetle in farmland is driven by habitat‐specific motility and preference at habitat interfaces

Dispersal of a carabid beetle in farmland is driven by habitat‐specific motility and preference at habitat interfaces

Analysing the impact of trap shape and movement behaviour of ground‐dwelling arthropods on trap efficiency

Movement Behavior and Host Location Ability of Corythucha ciliata

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