Data from: Spatial synchrony in sub-arctic geometrid moth outbreaks reflects dispersal in larval and adult lifecycle stages
1. Spatial synchrony in population dynamics can be caused by dispersal or spatially correlated variation in environmental factors like weather (Moran effect). Distinguishing between these mechanisms is challenging for natural populations, and the study of dispersal-induced synchrony in particular ha...
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Online Access: | https://doi.org/10.5061/dryad.kb4867v |
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fttriple:oai:gotriple.eu:50|dedup_wf_001::bbaf365804eb96e524939e4a8e7af14a 2023-05-15T15:03:37+02:00 Data from: Spatial synchrony in sub-arctic geometrid moth outbreaks reflects dispersal in larval and adult lifecycle stages Vindstad, Ole Petter L. Jepsen, Jane U. Yoccoz, Nigel G. Bjornstad, Ottar N. Mesquita, Michel D.S. Ims, Rolf A. 2020-01-14 https://doi.org/10.5061/dryad.kb4867v undefined unknown http://dx.doi.org/10.5061/dryad.kb4867v https://dx.doi.org/10.5061/dryad.kb4867v lic_creative-commons oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:120139 oai:easy.dans.knaw.nl:easy-dataset:120139 10.5061/dryad.kb4867v 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 re3data_____::r3d100000044 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 Life sciences medicine and health care population cycle Betula pubescens var. pumila Betula pubescens ballooning Epirrita autumnata dispersal barrier Operophtera brumata travelling wave wind-driven dispersal inter-species comparison envir geo Dataset https://vocabularies.coar-repositories.org/resource_types/c_ddb1/ 2020 fttriple https://doi.org/10.5061/dryad.kb4867v 2023-01-22T16:51:15Z 1. Spatial synchrony in population dynamics can be caused by dispersal or spatially correlated variation in environmental factors like weather (Moran effect). Distinguishing between these mechanisms is challenging for natural populations, and the study of dispersal-induced synchrony in particular has been dominated by theoretical modelling and laboratory experiments. 2. The goal of the present study was to evaluate the evidence for dispersal as a cause of meso-scale (distances of tens of kilometers) spatial synchrony in natural populations of the two cyclic geometrid moths Epirrita autumnata and Operophtera brumata in sub-arctic mountain birch forest in northern Norway. 3. To infer the role of dispersal in geometrid synchrony, we applied three complementary approaches, namely estimating the effect of design-based dispersal barriers (open sea) on synchrony, comparing the strength of synchrony between E. autumnata (winged adults) and the less dispersive O. brumata (wingless adult females), and relating the directionality (anisotropy) of synchrony to the predominant wind directions during spring, when geometrid larvae engage in windborne dispersal (ballooning). 4. The estimated effect of dispersal barriers on synchrony was almost three times stronger for the less dispersive O. brumata than E. autumnata. Inter-site synchrony was also weakest for O. brumata at all spatial lags. Both observations argue for adult dispersal as an important synchronizing mechanism at the spatial scales considered. Further, synchrony in both moth species showed distinct anisotropy and was most spatially extensive parallel to the east-west axis, coinciding closely with the overall dominant wind direction. This argues for a synchronizing effect of windborne larval dispersal. Congruent with most extensive dispersal along the east-west axis, E. autumnata also showed evidence for a travelling wave moving southwards at a speed of 50-80 km/year. 5. Our results suggest that dispersal processes can leave clear signatures in both the strength and ... Dataset Arctic Northern Norway Unknown Arctic Norway |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
unknown |
topic |
Life sciences medicine and health care population cycle Betula pubescens var. pumila Betula pubescens ballooning Epirrita autumnata dispersal barrier Operophtera brumata travelling wave wind-driven dispersal inter-species comparison envir geo |
spellingShingle |
Life sciences medicine and health care population cycle Betula pubescens var. pumila Betula pubescens ballooning Epirrita autumnata dispersal barrier Operophtera brumata travelling wave wind-driven dispersal inter-species comparison envir geo Vindstad, Ole Petter L. Jepsen, Jane U. Yoccoz, Nigel G. Bjornstad, Ottar N. Mesquita, Michel D.S. Ims, Rolf A. Data from: Spatial synchrony in sub-arctic geometrid moth outbreaks reflects dispersal in larval and adult lifecycle stages |
topic_facet |
Life sciences medicine and health care population cycle Betula pubescens var. pumila Betula pubescens ballooning Epirrita autumnata dispersal barrier Operophtera brumata travelling wave wind-driven dispersal inter-species comparison envir geo |
description |
1. Spatial synchrony in population dynamics can be caused by dispersal or spatially correlated variation in environmental factors like weather (Moran effect). Distinguishing between these mechanisms is challenging for natural populations, and the study of dispersal-induced synchrony in particular has been dominated by theoretical modelling and laboratory experiments. 2. The goal of the present study was to evaluate the evidence for dispersal as a cause of meso-scale (distances of tens of kilometers) spatial synchrony in natural populations of the two cyclic geometrid moths Epirrita autumnata and Operophtera brumata in sub-arctic mountain birch forest in northern Norway. 3. To infer the role of dispersal in geometrid synchrony, we applied three complementary approaches, namely estimating the effect of design-based dispersal barriers (open sea) on synchrony, comparing the strength of synchrony between E. autumnata (winged adults) and the less dispersive O. brumata (wingless adult females), and relating the directionality (anisotropy) of synchrony to the predominant wind directions during spring, when geometrid larvae engage in windborne dispersal (ballooning). 4. The estimated effect of dispersal barriers on synchrony was almost three times stronger for the less dispersive O. brumata than E. autumnata. Inter-site synchrony was also weakest for O. brumata at all spatial lags. Both observations argue for adult dispersal as an important synchronizing mechanism at the spatial scales considered. Further, synchrony in both moth species showed distinct anisotropy and was most spatially extensive parallel to the east-west axis, coinciding closely with the overall dominant wind direction. This argues for a synchronizing effect of windborne larval dispersal. Congruent with most extensive dispersal along the east-west axis, E. autumnata also showed evidence for a travelling wave moving southwards at a speed of 50-80 km/year. 5. Our results suggest that dispersal processes can leave clear signatures in both the strength and ... |
format |
Dataset |
author |
Vindstad, Ole Petter L. Jepsen, Jane U. Yoccoz, Nigel G. Bjornstad, Ottar N. Mesquita, Michel D.S. Ims, Rolf A. |
author_facet |
Vindstad, Ole Petter L. Jepsen, Jane U. Yoccoz, Nigel G. Bjornstad, Ottar N. Mesquita, Michel D.S. Ims, Rolf A. |
author_sort |
Vindstad, Ole Petter L. |
title |
Data from: Spatial synchrony in sub-arctic geometrid moth outbreaks reflects dispersal in larval and adult lifecycle stages |
title_short |
Data from: Spatial synchrony in sub-arctic geometrid moth outbreaks reflects dispersal in larval and adult lifecycle stages |
title_full |
Data from: Spatial synchrony in sub-arctic geometrid moth outbreaks reflects dispersal in larval and adult lifecycle stages |
title_fullStr |
Data from: Spatial synchrony in sub-arctic geometrid moth outbreaks reflects dispersal in larval and adult lifecycle stages |
title_full_unstemmed |
Data from: Spatial synchrony in sub-arctic geometrid moth outbreaks reflects dispersal in larval and adult lifecycle stages |
title_sort |
data from: spatial synchrony in sub-arctic geometrid moth outbreaks reflects dispersal in larval and adult lifecycle stages |
publishDate |
2020 |
url |
https://doi.org/10.5061/dryad.kb4867v |
geographic |
Arctic Norway |
geographic_facet |
Arctic Norway |
genre |
Arctic Northern Norway |
genre_facet |
Arctic Northern Norway |
op_source |
oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:120139 oai:easy.dans.knaw.nl:easy-dataset:120139 10.5061/dryad.kb4867v 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 re3data_____::r3d100000044 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 |
op_relation |
http://dx.doi.org/10.5061/dryad.kb4867v https://dx.doi.org/10.5061/dryad.kb4867v |
op_rights |
lic_creative-commons |
op_doi |
https://doi.org/10.5061/dryad.kb4867v |
_version_ |
1766335484028518400 |