Offshore and coastline migration of radio‐tagged Nathusius' pipistrelles

Bach, Petra; Voigt, Christian C.; Göttsche, Matthias; Bach, Lothar; Brust, Vera; Hill, Reinhold; Hüppop, Ommo; Lagerveld, Sander; Schmaljohann, Heiko; Seebens‐Hoyer, Antje

doi:10.1111/csp2.12783

Cited by 6 publications

(3 citation statements)

References 32 publications

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“… 2018 , Bach et al. 2022 ), some of which are also heavily used for wind energy production (Nunalee and Basu 2014 , Wieringa et al. 2021 ).…”

Section: Current Practice Of Avoidance–mitigation–compensation Hierar...mentioning

confidence: 99%

Toward solving the global green–green dilemma between wind energy production and bat conservation

Voigt,

Bernard,

Huang

et al. 2024

BioScience

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Wind energy production is growing rapidly worldwide in an effort to reduce greenhouse gas emissions. However, wind energy production is not environmentally neutral. Negative impacts on volant animals, such as bats, include fatalities at turbines and habitat loss due to land-use change and displacement. Siting turbines away from ecologically sensitive areas and implementing measures to reduce fatalities are critical to protecting bat populations. Restricting turbine operations during periods of high bat activity is the most effective form of mitigation currently available to reduce fatalities. Compensating for habitat loss and offsetting mortality are not often practiced, because meaningful offsets are lacking. Legal frameworks to prevent or mitigate the negative impacts of wind energy on bats are absent in most countries, especially in emerging markets. Therefore, governments and lending institutions are key in reconciling wind energy production with biodiversity goals by requiring sufficient environmental standards for wind energy projects.

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“… 2018 , Bach et al. 2022 ), some of which are also heavily used for wind energy production (Nunalee and Basu 2014 , Wieringa et al. 2021 ).…”

Section: Current Practice Of Avoidance–mitigation–compensation Hierar...mentioning

confidence: 99%

Toward solving the global green–green dilemma between wind energy production and bat conservation

Voigt,

Bernard,

Huang

et al. 2024

BioScience

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“…Beyond 85 km from shore the proportion of occurrences early in the night becomes greater than the proportion late at night causing a decrease in the average time of occurrence, indicating that the recorded bats do not cross the North Sea in one night. Interestingly, Bach et al (2022) found travel distances of radio tracked Nathusius' pipistrelles between 103 -131 km per night. Flight mechanical theory however predicts that bats can fly longer distances (Hedenström 2009) which would allow them to cross the North Sea in one night.…”

Section: Spatio-temporal Occurrence In Autumnmentioning

confidence: 99%

Spatiotemporal occurrence of bats at the southern North Sea 2017-2020

Lagerveld,

Geelhoed,

Bittner

et al. 2023

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“…Despite their importance, very little is known about different properties of long-range bat movement. Bats perform seasonal migrations spanning thousands of kilometres which, so far, were only studied using Lagrangian sampling methods (single individuals tracked over large areas and long time periods, Bach et al, 2022;Caprio et al, 2020;Cryan et al, 2014;Hutterer et al, 2005;Lagerveld et al, 2014;O'mara et al, 2014, 2019Petit & Mayer, 2000;Russell et al, 2005;Sullivan et al, 2012;Villa & Cockrum, 1962;Wilkinson & Fleming, 1996). These methods rely on sparse, sporadic observations of usually small number of individuals, which provide a very limited view of bat migration, preventing comprehensive, largescales analyses (Fleming, 2019).…”

Section: Introductionmentioning

confidence: 99%

BATScan: A radar classification tool reveals large‐scale bat migration patterns

Werber,

Sextin,

Yovel

et al. 2023

Methods Ecol Evol

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1. Bat movement and behaviour are still mostly understudied over large scales. Highaltitude, nocturnal activity makes visual identification of bats from the ground virtually impossible, dramatically hindering our ability to study their movement ecology.Despite the wide use of radar in aeroecology, its application to study specific taxa is limited due to incomplete target classification abilities. BATScan is a bat classifier for vertical-looking radar data, which enables identifying bats and characterizing their unique aeroecology.2. We constructed the classifier using data from 10 radar deployments, covering a wide range of habitats on a central bird migration flyway over a 7-year period, comprising ~18 million observations. We analysed animal migration above the Hula Valley, home to over 30 species of bats spanning a range of 5-150 g in size and exhibiting a variety of ecological characteristics. We distinguished bat-labelled radar echoes for training according to phenology, morphology and movement ecology of bats, birds and insects. Several non-bat datasets were constructed and joined to train classifiers under increasing levels of difficulty. Class imbalance in the resulting training data was handled using a generative adversarial network for up-sampling the much smaller bat dataset.The resulting classification tool reached a high level of accuracy and precision, and was further scrutinized with an extensive set of ecological validations.3. Bats perform seasonal migrations over long distances, but little is known about the spatial and temporal characteristics of this movement, and the ability to study it at a large scale has so far been limited. We present the Israeli BATScan dataset, containing over 60,000 bat observations spanning the entire country and representing multiple habitats. Using this data, we produce an unprecedented large scale, highly detailed documentation of the yearly movements of bats on a major migration flyway, and distinguish this pattern from bird migration over space and time. 4. So far, radar aeroecology dealt primarily with birds, increasingly with insects, and only rarely with bats. We present BATScan, a classification tool that can incorporate bats into the framework of radar aeroecology to finally enable a comprehensive description of animal aeroecology. | 1765Methods in Ecology and Evoluঞon WERBER et al.

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Offshore and coastline migration of radio‐tagged Nathusius' pipistrelles

Cited by 6 publications

References 32 publications

Toward solving the global green–green dilemma between wind energy production and bat conservation

Toward solving the global green–green dilemma between wind energy production and bat conservation

Spatiotemporal occurrence of bats at the southern North Sea 2017-2020

BATScan: A radar classification tool reveals large‐scale bat migration patterns

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