Locomotion in ground beetles (Coleoptera carabidae): An interpretation of leg structure in functional terms

Forsythe, T. G.

doi:10.1111/j.1469-7998.1983.tb02811.x

Cited by 41 publications

(25 citation statements)

References 4 publications

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“…In contrast to vertebrates, little was previously known about general patterns in the allometry of speed in invertebrates, as the few studies that include more than one or two species are restricted to specific taxonomic groups (Forsythe , Hurlbert et al. ).…”

Section: Discussionmentioning

confidence: 99%

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The little things that run: a general scaling of invertebrate exploratory speed with body mass

Hirt

Lauermann

Brose

et al. 2017

Ecology

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Abstract. Speed is a key trait of animal movement, and while much is already known about vertebrate speed and how it scales with body mass, studies on invertebrates are sparse, especially across diverse taxonomic groups. Here, we used automated image-based tracking to characterize the exploratory (voluntary) speed of 173 invertebrates comprising 57 species across six taxonomic groups (Arachnida, Chilopoda, Diplopoda, Entognatha, Insecta, Malacostraca) and four feeding types (carnivore, detritivore, herbivore, omnivore). Across all individuals, exploratory speed (mm/s) scaled with body mass (g) following a power-law relationship with a scaling exponent of 0.19 AE 0.04 (mean AE SE) and an intercept of 14.33 AE 1.2. These parameters varied substantially with taxonomic group and feeding type. For the first time, we provide general empirically derived allometric scaling relationships of exploratory speed across broad taxonomic groups of invertebrates. As exploratory speed drives key components of species interactions, such as encounter and attack rates, or competition, our study contributes to a deeper understanding of the role of individual movement in population and community level processes.

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Section: Discussionmentioning

confidence: 99%

“…). The few empirical studies that include more than two invertebrate species either do not report allometric equations (e.g., Forsythe ) or focus on a single taxonomic group (e.g., ants, whose foraging speed scales with mass to an exponent between 0.14 and 0.32 with a central tendency around 0.25; Hurlbert et al. ).…”

Section: Introductionmentioning

confidence: 99%

The little things that run: a general scaling of invertebrate exploratory speed with body mass

Hirt

Lauermann

Brose

et al. 2017

Ecology

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“…Interestingly, the best single measure of structural body size in P. cupreus was the length of the hind femur, and the worst measure was the commonly used length of elytron. In contrast to other insect orders (e.g., Diptera; Blanckenhorn & Hosken 2003), length of legs is rarely used in studies on body condition in beetles, although leg dimensions and shape have been intensively studied in context of their functionality in carabids (Forsythe 1983). …”

Section: Discussionmentioning

confidence: 99%

Measurement of Body Condition in a Common Carabid Beetle,Poecilus cupreus: A comparison of Fresh Weight, Dry Weight, and Fat Content

Knapp

Knappová

2013

Journal of Insect Science

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Because of its direct consequences on reproductive success, body condition is an often-studied individual trait in insects. Various studies on insects use disparate methods to assess “body condition.” However, it is doubtful that the results obtained by disparate methods are comparable. In this study, the body conditions of Poecilus cupreus (Linnaeus) (Coleoptera: Carabidae) from eight sites were compared based on the following commonly used variables: (i) fresh weight, (ii) dry weight, and (iii) fat content. All of these variables were corrected for structural body size. Moreover, the effects of using the following ways of assessing structural body size were examined: (a) one size measurement (length of elytron, which is commonly used in beetles), and (b) three size measurements (length of elytron, width of pronotum and length of hind femur). The results obtained using the various estimations of body condition (i, ii, iii) varied significantly. Therefore, studies employing distinct body measurements to assess body condition are not comparable to each other. Using multiple structural size measurements in body condition analyses is better than the common practice of using only one size measurement. However, in the present study, results provided by both methods differ only slightly. A recommendation on the use of terminology in studies on body condition is introduced.

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“…). We identified traits based on three broad categories: (i) pollination/hunting efficiency, (ii) foraging range/dispersal and (iii) key aspects of species ecology and behaviour (Forsythe ; Juliano ; Ribera et al . ; Kotze & O'Hara ; Bommarco et al .…”

Section: Methodsmentioning

confidence: 99%

National patterns of functional diversity and redundancy in predatory ground beetles and bees associated with key UK arable crops

Woodcock

Harrower

Redhead

et al. 2013

Journal of Applied Ecology

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Summary1. Invertebrates supporting natural pest control and pollination ecosystem services are crucial to world-wide crop production. Understanding national patterns in the spatial structure of natural pest control and pollination can be used to promote effective crop management and contribute to long-term food security. 2. We mapped the species richness and functional diversity of ground beetles and bees to provide surrogate measures of natural pest control and pollination for Great Britain. Functional diversity represents the value and range of morphological and behavioural traits that support ecosystem services. We modelled the rate at which functional diversity collapsed in response to species extinctions to provide an index of functional redundancy. 3. Deficits in functional diversity for both pest control and pollination were found in areas of high arable crop production. Ground beetle functional redundancy was positively correlated with the landscape cover of semi-natural habitats where extinctions were ordered by body size and dispersal ability. For bees, functional redundancy showed a weak positive correlation with semi-natural habitat cover where species extinctions were ordered by feeding specialization. 4. Synthesis and applications. Increasingly, evidence suggests that functionally diverse assemblages of ground beetles and bees may be a key element to strategies that aim to support pollination and natural pest control in crops. If deficits in both functional diversity and redundancy in areas of high crop production are to be reversed, then targeted implementation of agri-environment schemes that establish semi-natural habitat may provide a policy mechanism for supporting these ecosystem services.

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Locomotion in ground beetles (Coleoptera carabidae): An interpretation of leg structure in functional terms

Cited by 41 publications

References 4 publications

The little things that run: a general scaling of invertebrate exploratory speed with body mass

The little things that run: a general scaling of invertebrate exploratory speed with body mass

Measurement of Body Condition in a Common Carabid Beetle,Poecilus cupreus: A comparison of Fresh Weight, Dry Weight, and Fat Content

National patterns of functional diversity and redundancy in predatory ground beetles and bees associated with key UK arable crops

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