High-Resolution Spatial Distribution of Bird Movements Estimated from a Weather Radar Network

Kranstauber, Bart; Bouten, W.; Leijnse, H.; Wijers, B.C.; Verlinden, Liesbeth; Shamoun‐Baranes, Judy; Dokter, Adriaan M.

doi:10.3390/rs12040635

Cited by 20 publications

(14 citation statements)

References 40 publications

(58 reference statements)

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“…Moreover, they showed a technique for the extraction of individual biological parameters from the echo signal. Distinguishing birds and insects remains an essential challenge [ 128 ]; in Reference [ 129 ], the authors applied a fuzzy logic algorithm to use the dual-polarization S-band radar exploiting mainly for meteorological purposes.…”

Section: Insect Radarmentioning

confidence: 99%

“…Applying modern deep-learning algorithms enables the distinguishing of a tremendous amount of insect information in weather radar data [ 144 , 145 ]. Since a vast amount of weather radar data contaminated with biological echoes [ 128 , 146 ] is available, we can expect a very high trending interest in this topic in the future. This process is leveraged by advances in big data processing and machine learning progress.…”

Section: Insect Radarmentioning

confidence: 99%

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A Review of Insect Monitoring Approaches with Special Reference to Radar Techniques

Noskov

Bendix

Frieß

2021

Sensors

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Drastic declines in insect populations are a vital concern worldwide. Despite widespread insect monitoring, the significant gaps in the literature must be addressed. Future monitoring techniques must be systematic and global. Advanced technologies and computer solutions are needed. We provide here a review of relevant works to show the high potential for solving the aforementioned problems. Major historical and modern methods of insect monitoring are considered. All major radar solutions are carefully reviewed. Insect monitoring with radar is a well established technique, but it is still a fast-growing topic. The paper provides an updated classification of insect radar sets. Three main groups of insect radar solutions are distinguished: scanning, vertical-looking, and harmonic. Pulsed radar sets are utilized for all three groups, while frequency-modulated continuous-wave (FMCW) systems are applied only for vertical-looking and harmonic insect radar solutions. This work proves the high potential of radar entomology based on the growing research interest, along with the emerging novel setups, compact devices, and data processing approaches. The review exposes promising insect monitoring solutions using compact radar instruments. The proposed compact and resource-effective setups can be very beneficial for systematic insect monitoring.

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Section: Insect Radarmentioning

confidence: 99%

Section: Insect Radarmentioning

confidence: 99%

A Review of Insect Monitoring Approaches with Special Reference to Radar Techniques

Noskov

Bendix

Frieß

2021

Sensors

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“…Studying the movements of birds at finer scale is best carried out using polar volumes data (i.e., 360 ◦ radar scans) (e.g. Kranstauber et al, 2020).…”

Section: Discussionmentioning

confidence: 99%

Quantifying year-round nocturnal bird migration with a fluid dynamics model

Nussbaumer

Benoît

Mariethoz

et al. 2020

Preprint

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The movements of migratory birds constitute huge biomass flows that influence ecosystems and human economy, agriculture and health through the transport of energy, nutrients, seeds, and parasites. To better understand the influence on ecosystems and the corresponding services and disservices, we need to characterize and quantify the movements of migratory birds at various spatial and temporal scales. Representing the flow of birds in the air as a fluid, we applied a flow model to interpolated maps of bird density and velocity retrieved from the European weather radar network, covering almost a full year. Using this model, we quantify how many birds take-off, flight and land each night across Europe. Cumulating these daily fluxes of take-off and landing over time, we can summarize the change in the number of birds on the ground over the seasons and the entire year, track waves of bird migration between nights across Europe, and identify regions that see major biomass movements. The resulting numbers are impressive: We estimate that during the breeding season, 187 million more birds (623 Mio arriving and 436 Mio leaving) reside in Western Europe (than during winter), while 452 Mio more birds departed in autumn (934M leaving and 482M arriving). Our study show-cases the enormous potential of combining interdisciplinary data and methods to elucidate the dynamics of avian migration at various spatial and temporal scales, and once more emphasizes the importance of weather radar data being made available from all European countries.

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“…The spatial resolution of VPB‐based analyses can be somewhat improved by extrapolating VPB patterns (Kranstauber et al . 2020). For such extrapolations, the surveyed terrain should be uniform, as topographical heterogeneity (e.g.…”

Section: Use and Limitationsmentioning

confidence: 99%

“…The true horizontal spatial WR resolution in VPBbased analysis is defined by the horizontal distance between neighbouring radars, typically 100-300 km, which is fine for continental-scale studies . The spatial resolution of VPB-based analyses can be somewhat improved by extrapolating VPB patterns (Kranstauber et al 2020). For such extrapolations, the surveyed terrain should be uniform, as topographical heterogeneity (e.g.…”

Section: Use and Limitationsmentioning

confidence: 99%

Combining citizen science and weather radar data to study large‐scale bird movements

Weisshaupt

Lehtiniemi²,

Koistinen

2020

Ibis

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The study of large‐scale animal mass movements requires suitable large‐scale sampling methods. Weather radar (WR) has been known to register biological targets since the 1960s. Arranged in large networks, radar is suitable to study regional to continent‐wide dynamics of aerofauna and to respond to increasing human–wildlife conflicts in the air. Tools for the spatiotemporal validation of faunistic interpretations of WR measurements in situ are only sparsely available. Citizen science (CS) bird observation repositories established in the past 20 years have accumulated millions of entries of species‐specific information well beyond their time of existence across vast areas. Together with other CS data sources, these databases can relieve the taxonomic shortcomings of WR and thus extend and refine the use of WR data. CS and WR data combined can efficiently provide large amounts of species‐specific data in three dimensions in a short time at low or no cost. Species‐specific data are particularly relevant to tackle loss of biodiversity, one of the greatest challenges in today's world. In this forum paper, we present features and qualities of ornithological CS and WR data, and their potential to provide unprecedented insights into regional to continent‐wide aerial movements of birds. We aim to discuss specific fields of applications where maximum information yield is to be expected, which is otherwise inaccessible, and in which way combined approaches would support biological research and derived data products and services for stakeholders, e.g. in aviation and the general public as beneficiaries.

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High-Resolution Spatial Distribution of Bird Movements Estimated from a Weather Radar Network

Cited by 20 publications

References 40 publications

A Review of Insect Monitoring Approaches with Special Reference to Radar Techniques

A Review of Insect Monitoring Approaches with Special Reference to Radar Techniques

Quantifying year-round nocturnal bird migration with a fluid dynamics model

Combining citizen science and weather radar data to study large‐scale bird movements

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