Grasshoppers, crickets and allied insects

Marshall, Judith

doi:10.1017/cbo9780511778230.031

Cited by 5 publications

(4 citation statements)

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“…They are often the dominant herbivores in grassland ecosystems in terms of biomass and are an important food source for a range of vertebrate and invertebrate species (Cherrill & Begon, 1989;Bock et al, 1992;Gangwere et al, 1997). Finally, in the British Isles there is good distribution data collected via national recording schemes (Haes & Harding, 1997;Marshall, 2001Marshall, , 2010.…”

Section: Discussionmentioning

confidence: 99%

Large-scale Spatial Patterns in Species Richness of Orthoptera in the Greater London Area, United Kingdom: Relationships with Land Cover

Cherrill

2014

Landscape Research

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This paper explores species richness of insects of the Order Orthoptera along spatial gradients defined using remotely sensed land cover data for an area of 5,600 km 2 centred on the city of London. The numbers of species within grid-squares of a national atlas, controlled for recording effort, declined along composite multivariate spatial gradients representing landscapes with increasing dominance of arable and urban land uses, yet was uncorrelated with the area of an individual land cover representing cultivated land and only weakly correlated with area of a second land cover representing urban development. Few orthopteran species reside directly within either arable crops or non-vegetated urban land covers. Thus, whilst the areas of the individual land covers are intuitively sensible (and simple) measures of agricultural and urban cover respectively, their areas do not capture ecologically relevant information about variation in the composition of the uncultivated and non-urban land cover matrices within which the species actually reside. The results illustrate the advantages of using multivariate data reduction techniques (such as the Principle Components Analysis applied here) to describe spatial gradients in the extent of agricultural and urban influence. Relatively few landscape scale studies have focussed on insects and the present study illustrates a) the potential for using the Orthoptera to explore and monitor impacts of land use via analysis of large scale spatial patterns from national species distribution atlases combined with remotely sensed land cover, and b) the importance of selecting appropriate measures of land use which incorporate information on the complex mix of land cover types utilised by the species under investigation.3

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Section: Discussionmentioning

confidence: 99%

Large-scale Spatial Patterns in Species Richness of Orthoptera in the Greater London Area, United Kingdom: Relationships with Land Cover

Cherrill

2014

Landscape Research

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“…R. roeselii is a small (13–26 mm), shield‐backed katydid (subfamily Tettigoniinae), identifiable by its green or brown body, yellow accents across its thorax and abdomen and a white cream or yellow coloured band on the lower lateral margins of its pronotum (Marshall & Haes, 1988). R. roeselii is wing‐dimorphic, adults can be either short‐winged (brachypterous) or long‐winged (macropterous).…”

Section: Methodsmentioning

confidence: 99%

“…R. roeselii is wing‐dimorphic, adults can be either short‐winged (brachypterous) or long‐winged (macropterous). R. roeselii produces a species‐specific mating song with a peak frequency of 17 kHz that sounds like a continuous high‐pitched buzz, like that of electrical wires (Iorgu & Iorgu, 2011; Marshall & Haes, 1988). Adult males sing in midsummer to early fall (Berggren, 2004; Kevin A.…”

Section: Methodsmentioning

confidence: 99%

Large‐scale bioacoustic monitoring to elucidate the distribution of a non‐native katydid

Caouette,

Bayne,

Judge

2023

Ecological Entomology

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For animals that produce species‐specific audible sounds, environmental recordings combined with automated acoustic monitoring software (passive acoustic monitoring [PAM]) may be an effective monitoring tool because it allows audio data from many, widely distributed autonomous recording units (ARUs) to be processed in a relatively short period of time. Males of many insect species produce loud, species‐specific mating songs, yet acoustic insects have received less attention from PAM relative to vertebrates. We evaluated the use of PAM to monitor, Roeseliana roeselii (Orthoptera, Tettigoniidae), an acoustic insect that has expanded its range to Alberta, Canada, far outside its naturalized North American range. We analysed environmental recordings from ARUs: (1) at two control sites known to be occupied by R. roeselii and (2) across Alberta established by the Alberta Biodiversity Monitoring Institute (ABMI) to search for new populations. PAM successfully detected R. roeselii at the two control sites, but not at any of the 73 ABMI sites that we analysed. Despite the failure to detect new locations of R. roeselii, our analysis of ABMI environmental recordings detected several other species of acoustic insects, including Orchelimum gladiator, Gryllus sp. and Allonemobius spp. Our results add to the growing body of work showing the feasibility of using PAM for acoustic insects. We make suggestions for how to maximize the effectiveness of this monitoring tool for the conservation and management of singing insects in North America.

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“…Orthopterans are especially sensitive and widely used indicators of grassland structure and naturalness (Marshall 2010;Benton 2012;Cherrill 2015). In the temperate zone, their assemblages are relatively species-rich and play an important role in the food chain especially as herbivores (Gardiner et al 2005).…”

Section: Introductionmentioning

confidence: 99%

How can an intensively used agricultural landscape preserve diversity of Orthoptera assemblages?

Jakab

Nagy

2022

J Insect Conserv

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Protecting biodiversity of agricultural lowlands is one of the main topics of European nature conservation. Understanding the relationship and interaction between cultivated and other habitat types is necessary since arable lands cover a significant part of the landscape, but former studies rather focus on the remaining semi-natural sites. Orthoptera assemblages, which are sensitive indicators of habitat structure and conservation value, were studied in a traditional intensively used agricultural area (it has been cultivated for several decades or even 250 years) to assess how arable land and ruderal linear habitats together can preserve insect diversity. Twenty-nine Orthoptera species, including protected Gampsocleis glabra, Acrida ungarica and Celes variabilis were recorded. We identified four assemblages and their character species reflecting intensity of land use. Assemblages of agricultural sites differed from the assemblages of semi-natural habitats used as control group. Revealing their quantitative composition, ratios of lifeforms and ecotypes, character species, and use of Grasshopper Conservation Indexes (GCI) helped to identify habitat types that can effectively preserve natural insect diversity, even under long-term intensive land use regime. Implications for conservation Considering our findings, the role of linear ruderal habitats and less intensively cultivated arable lands covered by alfalfa and red clover in maintaining of biodiversity is higher than it was formerly assumed. Increasing ratio of these less intensive cultures (at least to 5%, optimally 8–10%) and its connection with each other and linear ruderal habitats may provide temporary habitats and corridors for metapopulations living in mosaic landscape. The local greening programs can help Orthoptera conservation as well through supporting the production of these cultures. Complex landscape- and crop rotation planning, that regard the spatial and temporal distribution, and ratio of agriculture landscape elements may become an effective tool for biodiversity conservation and forming sustainable farming systems.

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Grasshoppers, crickets and allied insects

Cited by 5 publications

References 0 publications

Large-scale Spatial Patterns in Species Richness of Orthoptera in the Greater London Area, United Kingdom: Relationships with Land Cover

Large-scale Spatial Patterns in Species Richness of Orthoptera in the Greater London Area, United Kingdom: Relationships with Land Cover

Large‐scale bioacoustic monitoring to elucidate the distribution of a non‐native katydid

How can an intensively used agricultural landscape preserve diversity of Orthoptera assemblages?

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