Erratum — Spatiotemporal variation in activity of bat species differing in hunting tactics: effects of weather, moonlight, food abundance, and structural clutter

Ciechanowski, Mateusz; Zajac, T; Biłas, A.; Dunajski, Robert

doi:10.1139/z08-025

Cited by 2 publications

(4 citation statements)

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“…Species-specific variation may be also due to differential sensitivity to weather between species of different foraging strategies (e.g. Ciechanowski et al 2007;Meyer et al 2011). We found that 7 to 15 nights were required to reach a threshold of 95 % similarity in species richness, mostly depending on the habitat.…”

Section: Discussionmentioning

confidence: 73%

“…temperature effect on mating calls; Kusch and Idelberger 2005), or foraging (e.g. the fog which could absorb echolocation calls; Ciechanowski et al 2007). The degree of confidence in this metric may also be limited by differences in detection range between species.…”

Section: Discussionmentioning

confidence: 99%

“…Species abundance and composition vary across habitat types and management regimes, mostly due to contrasting resource availability such as insect abundance for bats from temperate regions (Azam et al 2016;Kerbiriou et al 2018c;Froidevaux et al 2019). Dynamics in prey abundance can differ between habitat types (Ciechanowski et al 2007). In addition, the devices' ability to detect echolocation calls can be affected by the spatial structure of a given habitat (Brigham et al 1997).…”

Section: Introductionmentioning

confidence: 99%

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Going beyond species richness and abundance: robustness of community specialisation measures in short acoustic surveys

et al. 2021

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Passive Acoustic Monitoring offers promising opportunities for biodiversity assessments and species conservation and is still in development. The robustness of community metrics depends on sampling effort and acoustic surveys should be adjusted for cost-effectiveness. Using a large-scale acoustic survey of bat assemblages conducted along 5487 survey nights across France, we assessed the effect of sampling duration on the level of confidence of four community metrics (total bat activity, species of conservation concern activity, species richness, and community specialisation index). We further investigated whether this effect varied across habitats and seasons. Overall, a high level of confidence (i.e., 95% similarity between cumulated survey nights) was reached after 2 to[20 sampling nights, depending on the community metric, the habitat and the season considered. CSI required the lowest sampling duration. A higher sampling duration was required in three-dimensionally structured habitats (e.g., forests) and habitats unfavourable to bats (e.g., intensive farmlands), while a high degree of confidence was reached earlier in more favourable habitats and non-intensive farmlands, and during the season of higher activity. Beyond providing recommendations for the design of context-dependent minimum sampling duration in acoustic surveys, we show that weighted community indices such as the CSI are efficient summary measures, and advocate for their use when monitoring resources are limited.

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Section: Discussionmentioning

confidence: 73%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Going beyond species richness and abundance: robustness of community specialisation measures in short acoustic surveys

et al. 2021

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“…Design Ltd, Cheltenham, UK) (Roche et al, 2011). Bat activity is associated with greater biomass of prey (Ciechanowski, Zając, Bitas, & Dunajski, 2007; Tibbels & Kurta, 2003; Verboom & Spoelstra, 1999). Bat activity is used as a proxy for bat abundance in research literature (Kerbiriou et al, 2018; Newson, Evans, & Gillings, 2015) and strongly correlated with minimum bat abundance in our data set (Appendix S1).…”

Section: Methodsmentioning

confidence: 99%

Contribution of private gardens to habitat availability, connectivity and conservation of the common pipistrelle in Paris

Mimet

Kerbiriou

Simon

et al. 2019

Preprint

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Urban sprawl is one of the greatest global changes with major negative impacts on biodiversity and human well-being. Recent policies have acknowledged the value of urban green areas in counterbalancing such impacts. These policies aim to increase the ecological value of green areas, making cities more permeable to natural populations. However, they are largely focused on the role and management of public green areas, ignoring the role and potential of private green areas for urban ecological value.This study aims to evaluate the benefits of considering private green areas for conservation efforts in cities. Using data on bat activity and information on vegetation and building height, we quantify the respective role of public and private green areas in habitat availability and connectivity for the common pipistrelle in the city of Paris, France. Our results show that despite the low proportion of private green areas in Paris (36% of the total green areas), they still contributed up to 47.9% of bat habitat availability and decrease the resistance of the city matrix by 88%. The distribution in the city matrix and vegetation composition of those areas appeared especially beneficial for bat habitat availability and connectivity. The study demonstrates the importance of private green areas in the ecological value of cities in complementing the role of public green areas. Our results confirm the need to develop more inclusive urban conservation strategies that include both public and private stakeholders.HighlightsThe urban ecological value of private gardens outweighs that of public gardensThis is true for both habitat availability and connectivityBiodiversity policies in cities should also focus on private green areasInclusive conservation strategies are also needed in cities

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Erratum — Spatiotemporal variation in activity of bat species differing in hunting tactics: effects of weather, moonlight, food abundance, and structural clutter

Cited by 2 publications

References 0 publications

Going beyond species richness and abundance: robustness of community specialisation measures in short acoustic surveys

Going beyond species richness and abundance: robustness of community specialisation measures in short acoustic surveys

Contribution of private gardens to habitat availability, connectivity and conservation of the common pipistrelle in Paris

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