Data from: Determinants of parasitoid communities of willow-galling sawflies: habitat overrides physiology, host plant, and space
Studies on the determinants of plant–herbivore and herbivore–parasitoid associations provide important insights into the origin and maintenance of global and local species richness. If parasitoids are specialists on herbivore niches rather than on herbivore taxa, then alternating escape of herbivore...
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ftuniveasternfin:oai:erepo.uef.fi:123456789/23746 2023-05-15T15:00:54+02:00 Data from: Determinants of parasitoid communities of willow-galling sawflies: habitat overrides physiology, host plant, and space Nyman, Tommi (University of Zurich) Leppänen, Sanna A. (University of Eastern Finland) Várkonyi, Gergely (Finnish Environment Institute) Shaw, Mark R. (National Museums Scotland) Koivisto, Reijo (University of Eastern Finland) Barstad, Trond Elling (University of Eastern Finland) Vikberg, Veli (Liinalammintie 11 as. 6; Turenki FI-14200 Finland) Roininen, Heikki (University of Eastern Finland) 2020-11-19T10:48:33Z https://erepo.uef.fi/handle/123456789/23746 unknown https://datadryad.org/stash/share/2KiWUvBImZDbIZCXEzivZwne8EzQ_dDHK1NpNfTsw70 doi:10.5061/dryad.km75s https://erepo.uef.fi/handle/123456789/23746 https://creativecommons.org/publicdomain/zero/1.0/ CC0 PDM enemy-free space Bracon Adelognathus Ichneutes tritrophic food webs Tenthredinidae Salicaceae Pteromalus Salix Eurytoma Eulonchetron Chalcidoidea community barcoding Scambus Shawiana Ichneumonidae Braconidae Holocene Pontania vertical diversification effects Pleistocene 2020 ftuniveasternfin https://doi.org/10.5061/dryad.km75s 2022-12-11T06:54:27Z Studies on the determinants of plant–herbivore and herbivore–parasitoid associations provide important insights into the origin and maintenance of global and local species richness. If parasitoids are specialists on herbivore niches rather than on herbivore taxa, then alternating escape of herbivores into novel niches and delayed resource tracking by parasitoids could fuel diversification at both trophic levels. We used DNA barcoding to identify parasitoids that attack larvae of seven Pontania sawfly species that induce leaf galls on eight willow species growing in subarctic and arctic–alpine habitats in three geographic locations in northern Fennoscandia, and then applied distance- and model-based multivariate analyses and phylogenetic regression methods to evaluate the hierarchical importance of location, phylogeny and different galler niche dimensions on parasitoid host use. We found statistically significant variation in parasitoid communities across geographic locations and willow host species, but the differences were mainly quantitative due to extensive sharing of enemies among gallers within habitat types. By contrast, the divide between habitats defined two qualitatively different network compartments, because many common parasitoids exhibited strong habitat preference. Galler and parasitoid phylogenies did not explain associations, because distantly related arctic–alpine gallers were attacked by a species-poor enemy community dominated by two parasitoid species that most likely have independently tracked the gallers’ evolutionary shifts into the novel habitat. Our results indicate that barcode- and phylogeny-based analyses of food webs that span forested vs. tundra or grassland environments could improve our understanding of vertical diversification effects in complex plant–herbivore–parasitoid networks. 1 Other/Unknown Material Arctic Fennoscandia Subarctic Tundra UEF eRepository (University of Eastern Finland) Arctic |
institution |
Open Polar |
collection |
UEF eRepository (University of Eastern Finland) |
op_collection_id |
ftuniveasternfin |
language |
unknown |
topic |
enemy-free space Bracon Adelognathus Ichneutes tritrophic food webs Tenthredinidae Salicaceae Pteromalus Salix Eurytoma Eulonchetron Chalcidoidea community barcoding Scambus Shawiana Ichneumonidae Braconidae Holocene Pontania vertical diversification effects Pleistocene |
spellingShingle |
enemy-free space Bracon Adelognathus Ichneutes tritrophic food webs Tenthredinidae Salicaceae Pteromalus Salix Eurytoma Eulonchetron Chalcidoidea community barcoding Scambus Shawiana Ichneumonidae Braconidae Holocene Pontania vertical diversification effects Pleistocene Nyman, Tommi (University of Zurich) Leppänen, Sanna A. (University of Eastern Finland) Várkonyi, Gergely (Finnish Environment Institute) Shaw, Mark R. (National Museums Scotland) Koivisto, Reijo (University of Eastern Finland) Barstad, Trond Elling (University of Eastern Finland) Vikberg, Veli (Liinalammintie 11 as. 6; Turenki FI-14200 Finland) Roininen, Heikki (University of Eastern Finland) Data from: Determinants of parasitoid communities of willow-galling sawflies: habitat overrides physiology, host plant, and space |
topic_facet |
enemy-free space Bracon Adelognathus Ichneutes tritrophic food webs Tenthredinidae Salicaceae Pteromalus Salix Eurytoma Eulonchetron Chalcidoidea community barcoding Scambus Shawiana Ichneumonidae Braconidae Holocene Pontania vertical diversification effects Pleistocene |
description |
Studies on the determinants of plant–herbivore and herbivore–parasitoid associations provide important insights into the origin and maintenance of global and local species richness. If parasitoids are specialists on herbivore niches rather than on herbivore taxa, then alternating escape of herbivores into novel niches and delayed resource tracking by parasitoids could fuel diversification at both trophic levels. We used DNA barcoding to identify parasitoids that attack larvae of seven Pontania sawfly species that induce leaf galls on eight willow species growing in subarctic and arctic–alpine habitats in three geographic locations in northern Fennoscandia, and then applied distance- and model-based multivariate analyses and phylogenetic regression methods to evaluate the hierarchical importance of location, phylogeny and different galler niche dimensions on parasitoid host use. We found statistically significant variation in parasitoid communities across geographic locations and willow host species, but the differences were mainly quantitative due to extensive sharing of enemies among gallers within habitat types. By contrast, the divide between habitats defined two qualitatively different network compartments, because many common parasitoids exhibited strong habitat preference. Galler and parasitoid phylogenies did not explain associations, because distantly related arctic–alpine gallers were attacked by a species-poor enemy community dominated by two parasitoid species that most likely have independently tracked the gallers’ evolutionary shifts into the novel habitat. Our results indicate that barcode- and phylogeny-based analyses of food webs that span forested vs. tundra or grassland environments could improve our understanding of vertical diversification effects in complex plant–herbivore–parasitoid networks. 1 |
author |
Nyman, Tommi (University of Zurich) Leppänen, Sanna A. (University of Eastern Finland) Várkonyi, Gergely (Finnish Environment Institute) Shaw, Mark R. (National Museums Scotland) Koivisto, Reijo (University of Eastern Finland) Barstad, Trond Elling (University of Eastern Finland) Vikberg, Veli (Liinalammintie 11 as. 6; Turenki FI-14200 Finland) Roininen, Heikki (University of Eastern Finland) |
author_facet |
Nyman, Tommi (University of Zurich) Leppänen, Sanna A. (University of Eastern Finland) Várkonyi, Gergely (Finnish Environment Institute) Shaw, Mark R. (National Museums Scotland) Koivisto, Reijo (University of Eastern Finland) Barstad, Trond Elling (University of Eastern Finland) Vikberg, Veli (Liinalammintie 11 as. 6; Turenki FI-14200 Finland) Roininen, Heikki (University of Eastern Finland) |
author_sort |
Nyman, Tommi (University of Zurich) |
title |
Data from: Determinants of parasitoid communities of willow-galling sawflies: habitat overrides physiology, host plant, and space |
title_short |
Data from: Determinants of parasitoid communities of willow-galling sawflies: habitat overrides physiology, host plant, and space |
title_full |
Data from: Determinants of parasitoid communities of willow-galling sawflies: habitat overrides physiology, host plant, and space |
title_fullStr |
Data from: Determinants of parasitoid communities of willow-galling sawflies: habitat overrides physiology, host plant, and space |
title_full_unstemmed |
Data from: Determinants of parasitoid communities of willow-galling sawflies: habitat overrides physiology, host plant, and space |
title_sort |
data from: determinants of parasitoid communities of willow-galling sawflies: habitat overrides physiology, host plant, and space |
publishDate |
2020 |
url |
https://erepo.uef.fi/handle/123456789/23746 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Fennoscandia Subarctic Tundra |
genre_facet |
Arctic Fennoscandia Subarctic Tundra |
op_relation |
https://datadryad.org/stash/share/2KiWUvBImZDbIZCXEzivZwne8EzQ_dDHK1NpNfTsw70 doi:10.5061/dryad.km75s https://erepo.uef.fi/handle/123456789/23746 |
op_rights |
https://creativecommons.org/publicdomain/zero/1.0/ |
op_rightsnorm |
CC0 PDM |
op_doi |
https://doi.org/10.5061/dryad.km75s |
_version_ |
1766332946731499520 |