Use of Road Verges by Butterfly and Burnet Populations, and the Effect of Roads on Adult Dispersal and Mortality

Munguira, Miguel L.; Thomas, J. A.

doi:10.2307/2404501

Cited by 182 publications

(149 citation statements)

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“…While the size of the field margin had an influence on butterfly abundance, it did not affect species richness, in contrast to island biogeography theory predicting the increase of species diversity with habitat area (Connor and McCoy, 1979;MacArthur and Wilson, 1967). However, other studies on butterflies have shown that factors other than habitat size are important in determining butterfly species richness, including habitat qualities (Collinge et al, 2003;Munguira and Thomas, 1992;Schneider et al, 2003;Steffan-Dewenter and Tscharntke, 1997), disturbance (Feber et al, 1996), isolation of habitat patches (Dennis and Shreeve, 1997;Summerville and Crist, 2001;Thomas et al, 2001), landscape diversity (Hodgson, 1993;Weibull et al, 2000), and species metapopulation patterns (Gutiérrez et al, 1999). In general, narrow margins along intensively managed agricultural fields are poor habitats for many butterflies, and a limited set of "typical" species seem to occur on arable field margins, colonisation by other species being dependent on increases in habitat quality rather than margin size.…”

Section: Discussionmentioning

confidence: 71%

“…The observed pattern was typical for invertebrate communities in agro-ecosystems comprised of a few dominants with remaining species occurring in relatively small proportions (Luff, 2002;Samu and Szinetár, 2002;Tischler, 1958). In general, the observed butterflies were common species typical of arable land, 33 species observed being within the expected range for richness (Ebert and Rennwald, 1991a;Feber et al, 1996;Kruess and Tscharntke, 2002;Munguira and Thomas, 1992;SteffanDewenter and Tscharntke, 1997). The proportion of threatened species listed in Red Data Books was relatively small, most species being categorized in minor classifications ( "near threatened").…”

Section: Discussionmentioning

confidence: 82%

“…Thus, it might be argued that monitoring adult butterflies is not the ideal stage to detect Bt maize effects. So far, published work is inconsistent, with some studies showing a positive correlation between number of larvae and adult butterfly abundance at a site, and others not (Munguira and Thomas, 1992;Schneider et al, 2003;Steffan-Dewenter and Tscharntke, 1997).…”

Section: Discussionmentioning

confidence: 98%

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Monitoring the impact ofBtmaize on butterflies in the field: estimation of required sample sizes

Lang

2004

Environ. Biosafety Res.

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The monitoring of genetically modified organisms (GMOs) after deliberate release is important in order to assess and evaluate possible environmental effects. Concerns have been raised that the transgenic crop, Bt maize, may affect butterflies occurring in field margins. Therefore, a monitoring of butterflies was suggested accompanying the commercial cultivation of Bt maize. In this study, baseline data on the butterfly species and their abundance in maize field margins is presented together with implications for butterfly monitoring. The study was conducted in Bavaria, South Germany, between 2000-2002. A total of 33 butterfly species was recorded in field margins. A small number of species dominated the community, and butterflies observed were mostly common species. Observation duration was the most important factor influencing the monitoring results. Field margin size affected the butterfly abundance, and habitat diversity had a tendency to influence species richness. Sample size and statistical power analyses indicated that a sample size in the range of 75 to 150 field margins for treatment (transgenic maize) and control (conventional maize) would detect (power of 80%) effects larger than 15% in species richness and the butterfly abundance pooled across species. However, a much higher number of field margins must be sampled in order to achieve a higher statistical power, to detect smaller effects, and to monitor single butterfly species.

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Section: Discussionmentioning

confidence: 71%

Section: Discussionmentioning

confidence: 82%

Section: Discussionmentioning

confidence: 98%

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Monitoring the impact ofBtmaize on butterflies in the field: estimation of required sample sizes

Lang

2004

Environ. Biosafety Res.

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“…Voor plantensoorten zijn hier enkele klassen met een kleine oppervlaktebehoefte aan toegevoegd. In Tabel 7 (Munguira & Thomas, 1992). Hier wordt in de MetaNatuurplanner geen rekening mee gehouden omdat de veranderingen in infrastructuur in verschillende scenario's niet groot wordt geacht in Nederland.…”

Section: Implementatieunclassified

MetaNatuurplanner v2.0 : status A

Pouwels

Eupen

Adrichem

et al. 2016

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“…One reason for this trend might be the intensive vegetation management regimes that are common within urban grasslands. Reducing frequent mowing and spraying along urban ROWs could enable these ROWs to support more species of plants (Parr and Way 1988, Munguira and Thomas 1992, Leston and Koper 2016, which in turn could support more arthropods (Morris and Rispin 1988, Swengel 2001, Kruess and Tscharntke 2002 and thus provide food resources for grassland birds. Reducing mowing along urban ROWs may also reduce the destruction of bird nests (Kershner and Bollinger 1996) and increase the availability of nesting sites for ground-nesting birds that prefer tall vegetation (e.g., Clay-colored Sparrow, Spizella pallida [Knapton 1994]; Le Conte's Sparrow, Ammodramus lecontei [Lowther 2005]; Sedge Wren, Cistothorus platensis [Murray andBest 2003, Roth et al 2005]).…”

Section: Introductionmentioning

confidence: 99%

Managing urban and rural rights-of-way as potential habitats for grassland birds

Leston¹,

Koper²

2017

ACE

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ABSTRACT. Urban grassy rights-of-way (ROWs) such as along transmission lines could be managed cumulatively as collections of potential grassland habitats to contribute to the conservation of grassland birds. To optimize conservation opportunities, managing urban ROWs for grassland birds may require reductions in frequent mowing and spraying and may also depend on the suitability of landscape structure within the urban environment. We compared effects of mowing regime relative to effects of the matrix surrounding ROWs on grassland bird abundance and occupancy along 48 ROWs in and surrounding Winnipeg, Manitoba, in 2007-2009. We used both hierarchical distance-sampling and multiseason occupancy modeling methods to account for effects of urbanization (e.g., traffic noise), observer experience, time of season, and survey time in the morning on the probability of detecting birds at study sites. We did not find differences in detection of grassland birds due to urbanization, but we did find effects of time of season, survey time in the morning, and observer experience. After accounting for availability, we found that several species declined along ROWs that were surrounded by more urban or wooded land. Western Meadowlark occupancy increased as the amount of grassland within 100 m of ROWs increased. Savannah Sparrow showed some evidence of increasing with mowing, whereas Clay-colored Sparrow showed some evidence of decreasing with mowing, although these species and Western Meadowlark also increased within hayed ROWs. We conclude that urban ROWs managed as grassland bird habitats will probably attract more individuals and species if there is less nearby urban or wooded land and more grassland, and within which there is a mixture of unmowed and hayed ROW sections. Aménagement d'emprises en milieu urbain et rural comme habitat potentiel d'oiseaux champêtresRÉSUMÉ. Les emprises herbeuses en milieu urbain, telles que celles des lignes de transport d'électricité, pourraient être cumulativement aménagées en un ensemble de milieux de prairie potentiels afin de contribuer à la conservation des oiseaux champêtres. En vue d'optimiser les occasions de conservation, l'aménagement des emprises urbaines pour ces oiseaux pourrait nécessiter une diminution de la fréquence du fauchage et de l'épandage, et pourrait aussi dépendre du caractère propice de la structure de paysage dans l'environnement urbain. Nous avons comparé les effets du régime de fauchage en fonction des effets de la matrice environnant les emprises sur l'occurrence et l'abondance d'oiseaux champêtres le long de 48 emprises situées à Winnipeg et ses environs, au Manitoba, en 2007Manitoba, en -2009. Afin de prendre en compte les effets de l'urbanisation (p. ex. bruit de la circulation), de l'expérience de l'observateur, du moment dans la saison et de l'heure de l'inventaire sur la probabilité de détecter les oiseaux aux sites d'étude, nous avons utilisé deux méthodes de modélisation : à partir de l'échantillonnage par distance hiérarchique et de la présence multisaisonn...

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Use of Road Verges by Butterfly and Burnet Populations, and the Effect of Roads on Adult Dispersal and Mortality

Cited by 182 publications

References 21 publications

Monitoring the impact ofBtmaize on butterflies in the field: estimation of required sample sizes

Monitoring the impact ofBtmaize on butterflies in the field: estimation of required sample sizes

MetaNatuurplanner v2.0 : status A

Managing urban and rural rights-of-way as potential habitats for grassland birds

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