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  • 1
    Online Resource
    Online Resource
    Supplementary material 1 from: Komonen A, Torniainen J (2022) All-day activity of Dolichovespula saxonica (Hymenoptera, Vespidae) colonies in Central Finland. Journal of Hymenoptera Research 89: 157-170. https://doi.org/10.3897/jhr.89.79306
    Pensoft Publishers ; 2022
    In:  Journal of Hymenoptera Research Vol. 89 ( 2022-02-28), p. 157-170
    Details
    In: Journal of Hymenoptera Research, Pensoft Publishers, Vol. 89 ( 2022-02-28), p. 157-170
    Abstract: In social vespid wasps, colony activity varies at many temporal scales. We studied the peak season activity (number of individuals entering the nest per min) of colonies of the social vespine wasp Dolichovespula saxonica in its native range in boreal Finland. Six colonies were monitored non-stop for a full day, starting before sunrise and ending after sunset. Shorter monitoring was carried out before and/or after the full-day monitoring. All colonies were active before sunrise and after sunset, and the overall activity was positively linked with colony size. Activity showed irregular minute-to-minute cycles in all colonies. The broader within-day dynamics were idiosyncratic among the colonies: activity varied generally between 40–100% of the peak, there were usually a few peaks per day, and the timing of the peaks varied. Ambient temperature was not related to activity dynamics consistently. Our study provides high-resolution information about the all-day activity of D. saxonica and underscores high among-colony variability in the dynamics of vespine wasps.
    Type of Medium: Online Resource
    ISSN: 1314-2607 , 1070-9428
    URL: Article
    URL: Article
    URL: Article
    DOI: 10.3897/jhr.89.79306
    DOI: 10.3897/jhr.89.79306.figures1-8
    DOI: 10.3897/jhr.89.79306.suppl1
    Language: Unknown
    Publisher: Pensoft Publishers
    Publication Date: 2022
    detail.hit.zdb_id: 2477175-2
    SSG: 12
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  • 2
    Online Resource
    Online Resource
    Supplementary material 1 from: Milardi M, Green AJ, Mancini M, Trotti P, Kiljunen M, Torniainen J, Castaldelli G (2022) Invasive catfish in northern Italy and their impacts on waterbirds. NeoBiota 72: 109-128. https://doi.org/10.3897/neobiota.72.80500
    Pensoft Publishers ; 2022
    In:  NeoBiota Vol. 72 ( 2022-03-25), p. 109-128
    Details
    In: NeoBiota, Pensoft Publishers, Vol. 72 ( 2022-03-25), p. 109-128
    Abstract: Predatory fish have occasionally been observed preying on birds, sometimes repeatedly, but few studies were able to unravel the overall significance of avian prey in fish diet and the predation impacts on bird populations. We used a control/impact study setup, using a Nature Reserve in northern Italy and a nearby control area, to determine: 1) the contribution of waterbirds to wels catfish diet in the Reserve, 2) the population density of wels catfish in the Reserve and control area and 3) the potential impacts of waterbird depredation by wels catfish on waterbird population trends. Our stable isotope Bayesian mixing model indicated that birds contributed 12.2% (5–27.9%, 50% confidence interval) of the diet of large wels catfish ( & gt; 98 cm in total length). Large individuals constituted the majority of the population in the shoreline areas of the reserve in 2013–2019, where the population was stable despite control efforts. Numbers were below detectable levels in the control area. Large wels catfish consumed an average of 224, 148 and 187 kg of birds during the 2019 chick growing period, as estimated through three different bioenergetic models. Compared to the control area, mallard reproductive success was diminished in the Reserve, likely due to higher rates of fish predation, although effects were variable in different years. Overall, our data suggest that high densities of invasive wels catfish might impact waterbird reproductive success through predation on bird chicks, but further studies would be needed to reduce uncertainties related to the intrinsic variability of field ecology data. Our study constitutes a preliminary attempt to assess the potential of introduced wels catfish to affect the conservation value of waterbird protection areas, and should be repeated at broader spatial and temporal scales.
    Type of Medium: Online Resource
    ISSN: 1314-2488 , 1619-0033
    URL: Article
    URL: Article
    DOI: 10.3897/neobiota.72.80500
    DOI: 10.3897/neobiota.72.80500.suppl1
    Language: Unknown
    Publisher: Pensoft Publishers
    Publication Date: 2022
    detail.hit.zdb_id: 2628537-X
    SSG: 21
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  • 3
    Online Resource
    Online Resource
    Different trophic positions among social vespid species revealed by stable isotopes
    The Royal Society ; 2021
    In:  Royal Society Open Science Vol. 8, No. 5 ( 2021-05), p. 210472-
    Details
    In: Royal Society Open Science, The Royal Society, Vol. 8, No. 5 ( 2021-05), p. 210472-
    Abstract: The social vespid wasps are common insect predators and several species behave in unison in the same biotopes. It is commonly accepted that social wasps are mainly opportunistic generalist predators without differences in prey selection and hence they compete for the same food resources. Trophic positions of six vespid wasp species and their potential prey from four sites in Finland and one in the UK were evaluated using carbon and nitrogen stable isotopes (δ 13 C and δ 15 N). The difference in isotope values indicated different trophic positions among species. In general, Dolichovespula spp. showed higher δ 15 N values than Vespula spp., which suggests that Dolichovespula forage on higher trophic levels. Dolichovespula media (Retzius, 1783) showed the highest δ 15 N values, whereas Vespula vulgaris showed the lowest. Dolichovespula media partly expresses apex predator-like δ 15 N values, whereas Vespula species tend to forage on primary consumers. The largest species Vespa crabro (Linnaeus, 1758) showed also similar δ 15 N values as Vespula spp. However, δ 13 C and δ 15 N values of V. vulgaris workers varied slightly during the season. This study offers novel insights about the trophic segregation in the social wasp community, suggesting specialization in diet resource utilization, especially between Dolichovespula and Vespula .
    Type of Medium: Online Resource
    ISSN: 2054-5703
    URL: Article
    DOI: 10.1098/rsos.210472
    Language: English
    Publisher: The Royal Society
    Publication Date: 2021
    detail.hit.zdb_id: 2787755-3
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  • 4
    Online Resource
    Online Resource
    Social Wasps (Vespinae) in Urban Gardens and Woods
    Finnish Zoological and Botanical Publishing Board ; 2020
    In:  Annales Zoologici Fennici Vol. 57, No. 1-6 ( 2020-5-14), p. 41-
    Details
    In: Annales Zoologici Fennici, Finnish Zoological and Botanical Publishing Board, Vol. 57, No. 1-6 ( 2020-5-14), p. 41-
    Type of Medium: Online Resource
    ISSN: 0003-455X
    URL: Article
    DOI: 10.5735/086.057.0105
    Language: Unknown
    Publisher: Finnish Zoological and Botanical Publishing Board
    Publication Date: 2020
    detail.hit.zdb_id: 2017991-1
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  • 5
    Online Resource
    Online Resource
    Table_1.XLS
    Frontiers Media SA ; 2022
    In:  Frontiers in Ecology and Evolution Vol. 10 ( 2022-9-7)
    Details
    In: Frontiers in Ecology and Evolution, Frontiers Media SA, Vol. 10 ( 2022-9-7)
    Abstract: Monitoring of arthropods focuses typically on changes in population and range size over time. Yet, there are a myriad of other aspects that could and should be monitored under the ongoing global and local environmental change. Stable isotope analysis, widely employed in short-term ecological studies, has potential in long-term monitoring of arthropods. Here we discuss the use of stable isotopes in monitoring terrestrial arthropods, provide some empirical examples of the use of bulk tissue samples in stable isotope analysis, and outline future directions in using compound-specific stable isotope analysis in monitoring. We performed a literature search for 2012–2021 to see if stable isotopes have been specifically used in monitoring of terrestrial arthropods. The literature shows that stable isotopes have been successfully used to reveal ecological phenomena (dispersal, trophic interactions, resource use) that would have been difficult or impossible to detect by other means. Yet, stable isotopes have been underused in arthropod monitoring programs, but the growing number of basic studies on stable isotope ecology and methodology provides crucial basis needed for developing monitoring programs. Stable isotopes provide technically, economically and ecologically feasible addition to the traditional monitoring methods of terrestrial arthropods.
    Type of Medium: Online Resource
    ISSN: 2296-701X
    URL: Article
    URL: Article
    DOI: 10.3389/fevo.2022.969595
    DOI: 10.3389/fevo.2022.969595.s001
    Language: Unknown
    Publisher: Frontiers Media SA
    Publication Date: 2022
    detail.hit.zdb_id: 2745634-1
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  • 6
    Online Resource
    Online Resource
    Migratory connectivity of two Baltic Sea salmon populations: retrospective analysis using stable isotopes of scales
    Oxford University Press (OUP) ; 2014
    In:  ICES Journal of Marine Science Vol. 71, No. 2 ( 2014-01-01), p. 336-344
    Details
    In: ICES Journal of Marine Science, Oxford University Press (OUP), Vol. 71, No. 2 ( 2014-01-01), p. 336-344
    Abstract: Torniainen, J., Vuorinen, P. J., Jones, R. I., Keinänen, M., Palm, S., Vuori, K. A. M., and Kiljunen, M. 2014. Migratory connectivity of two Baltic Sea salmon populations: retrospective analysis using stable isotopes of scales. – ICES Journal of Marine Science, 71: 336–344. Migratory connectivity refers to the extent to which individuals of a migratory population behave in unison, and has significant consequences for the ecology, evolution and conservation of migratory animals. We made a retrospective assessment of the migratory connectivity of River Simojoki and River Kymijoki populations of Atlantic salmon Salmo salar L. by using stable isotope analysis of archived scales to identify the final feeding areas used before ascending rivers for spawning. We also tested differences in migratory connectivity between wild and hatchery-reared salmon and compared Carlin-tag recoveries with salmon scale stable isotope analysis as methods for studying salmon migrations. Stable isotope (δ13C, δ15N) values from the last growth region of scales from salmon caught ascending their natal rivers were compared via discriminant analysis with those from scales of salmon caught in different Baltic Sea areas during 1989–2011. Most River Simojoki salmon had likely fed in the Baltic Proper (mean ± SD for ascending fish probability 0.59 ± 0.32) with secondary likely feeding areas in the Bothnian Sea (0.21 ± 0.26) and the Gulf of Finland (0.20 ± 0.27). Most River Kymijoki salmon had likely fed in the Gulf of Finland (0.71 ± 0.42) with the Baltic Proper (0.29 ± 0.41) a secondary feeding area. The results did not indicate the Bothnian Sea to be an important feeding area. The two salmon populations showed weak migratory connectivity and rather fixed areal preference throughout the record irrespective of wild or stocked origin. Although the results from the scale stable isotope analyses were broadly consistent with previously reported Carlin-tag recoveries, we argue that the stable isotope approach offers several important advantages in the study of salmon migratory behaviour.
    Type of Medium: Online Resource
    ISSN: 1095-9289 , 1054-3139
    URL: Article
    DOI: 10.1093/icesjms/fst153
    Language: English
    Publisher: Oxford University Press (OUP)
    Publication Date: 2014
    detail.hit.zdb_id: 2463178-4
    detail.hit.zdb_id: 1468003-8
    detail.hit.zdb_id: 29056-7
    SSG: 12
    SSG: 21,3
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  • 7
    Online Resource
    Online Resource
    Oxygen and carbon isoscapes for the Baltic Sea: Testing their applicability in fish migration studies
    Wiley ; 2017
    In:  Ecology and Evolution Vol. 7, No. 7 ( 2017-04), p. 2255-2267
    Details
    In: Ecology and Evolution, Wiley, Vol. 7, No. 7 ( 2017-04), p. 2255-2267
    Abstract: Conventional tags applied to individuals have been used to investigate animal movement, but these methods require tagged individuals be recaptured. Maps of regional isotopic variability known as “isoscapes” offer potential for various applications in migration research without tagging wherein isotope values of tissues are compared to environmental isotope values. In this study, we present the spatial variability in oxygen ( ) and dissolved inorganic carbon (δ 13 C DIC ) isotope values of Baltic Sea water. We also provide an example of how these isoscapes can reveal locations of individual animal via spatial probability surface maps, using the high‐resolution salmon otolith isotope data from salmon during their sea‐feeding phase in the Baltic Sea. A clear latitudinal and vertical gradient was found for both and δ 13 C DIC values. The difference between summer and winter in the Baltic Sea values was only slight, whereas δ 13 C DIC values exhibited substantial seasonal variability related to algal productivity. Salmon otolith δ 18 O oto and δ 13 C oto values showed clear differences between feeding areas and seasons. Our example demonstrates that dual isotope approach offers great potential for estimating probable fish habitats once issues in model parameterization have been resolved.
    Type of Medium: Online Resource
    ISSN: 2045-7758 , 2045-7758
    URL: Issue
    URL: Article
    DOI: 10.1002/ece3.2017.7.issue-7
    DOI: 10.1002/ece3.2841
    Language: English
    Publisher: Wiley
    Publication Date: 2017
    detail.hit.zdb_id: 2635675-2
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  • 8
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    Online Resource
    Developing response-ability in human-wasp encounters
    Trace - Finnish Journal for Human-Animal Studies ; 2023
    In:  TRACE ∴ Journal for Human-Animal Studies Vol. 9 ( 2023-05-20), p. 120-146
    Details
    In: TRACE ∴ Journal for Human-Animal Studies, Trace - Finnish Journal for Human-Animal Studies, Vol. 9 ( 2023-05-20), p. 120-146
    Abstract: Learning to live with unloved others is crucial in the ecological crisis. Unloved wasps are feared and disliked for their sting. Understanding of their ecological importance is increasing, however. Human-wasp encounters are changing with environmental changes, and strategies for multispecies cohabitation are needed. This multispecies study highlights features of wasp biology affecting human-wasp encounters and analyzes how conflicted human-wasp relations could be mitigated. The geographical focus is Finland, in the Northern boreal region. Biological analysis specified spatiotemporal aspects affecting human-wasp encounters: human and wasp habitats and preferences overlap ubiquitously. From a media analysis, we identified contextual strategies for living with wasps: exterminating, repelling, relocating, and giving space. Wasps do not receive only bad press – human-wasp relations are diverse and contextual. Knowledge of wasp ecology may allow for cultivating response-ability in multispecies encounters. Media provides information and narratives that allow reinterpreting wasp “aggression” as a vulnerable multispecies condition. Human-wasp encounters are corporeal and often preferably avoided. Therefore, methods that allow developing intimacy without proximity may be used for reflecting on human-wasp relations. One such method is crocheting decoy wasp nests. Human-wasp encounters could be mitigated by species-specific strategies that assess the risk involved. However, developing such strategies is difficult because wasps are often confused with other black-and-yellow insects.
    Type of Medium: Online Resource
    ISSN: 2343-0591
    URL: Article
    DOI: 10.23984/fjhas.120353
    Language: Unknown
    Publisher: Trace - Finnish Journal for Human-Animal Studies
    Publication Date: 2023
    detail.hit.zdb_id: 3071079-0
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  • 9
    Online Resource
    Online Resource
    The origins of northern European Autographa gamma individuals evaluated using hydrogen stable isotopes
    Wiley ; 2018
    In:  Ecological Entomology Vol. 43, No. 5 ( 2018-10), p. 699-702
    Details
    In: Ecological Entomology, Wiley, Vol. 43, No. 5 ( 2018-10), p. 699-702
    Abstract: 1. Many insect species are migratory. As the spring progresses, adults gradually depart from their over‐wintering habitats and arrive in northern zones where they reproduce during the summer. Understanding this transgenerational and highly adaptive migratory behaviour is crucial when interpreting life cycle dynamics of many insect pests. 2. Origins of migratory silver Y moths, Autographa gamma (Linnaeus, 1758), captured from Finland, were studied with stable hydrogen analysis of their wings (δ 2 H w ). 3. The difference between spring and autumn generation δ 2 H w values indicate different geographical natal origins. The probability surface map shows that the spring generation probably emerged in central Europe (Benelux countries, Germany and parts of France). 4. A negative correlation between the δ 2 H w values and the migrants' capture year suggests that a warming climate may have driven the transgenerational migratory stages northwards during the last century.
    Type of Medium: Online Resource
    ISSN: 0307-6946 , 1365-2311
    URL: Issue
    URL: Article
    DOI: 10.1111/een.2018.43.issue-5
    DOI: 10.1111/een.12635
    RVK:
    WA 15000
    Language: English
    Publisher: Wiley
    Publication Date: 2018
    detail.hit.zdb_id: 2020189-8
    detail.hit.zdb_id: 196048-9
    SSG: 12
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  • 10
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    Online Resource
    Potential predation pressure of littoral mysids on herring (Clupea harengus membras L.) eggs and yolk-sac larvae
    Elsevier BV ; 2008
    In:  Journal of Experimental Marine Biology and Ecology Vol. 367, No. 2 ( 2008-12), p. 247-252
    Details
    In: Journal of Experimental Marine Biology and Ecology, Elsevier BV, Vol. 367, No. 2 ( 2008-12), p. 247-252
    Type of Medium: Online Resource
    ISSN: 0022-0981
    URL: Article
    DOI: 10.1016/j.jembe.2008.10.007
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2008
    detail.hit.zdb_id: 410283-6
    detail.hit.zdb_id: 1483103-X
    SSG: 12
    SSG: 7,20
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