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Query: "author" (Maarten De Groot) .

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1.
Hoverflies (Diptera: Syrphidae) as biodiversity indicators for assessing urban forest habitats
Maarten De Groot, Primož Simončič, Andrej Verlič, Urša Vilhar, 2022, original scientific article

Abstract: Urban and peri-urban forests are important habitats for maintaining biodiversity in cities. In this paper, we report a method for using hoverflies as biodiversity indicators in urban forest habitats. As a case study, forest habitats in three peri-urban and urban forests were assessed and compared to rural forests in Slovenia. Rožnik (Ljubljana) was chosen as the urban forest site, Mestni log (Ljubljana) and Brdo (Kranj) were chosen as the peri-urban sites, and eight sites were chosen in rural forests in different ecoregions in Slovenia. Forest hoverfly species richness and the species composition of different biological traits were compared between the peri-urban forests, urban forest and rural forest sites. In addition, species richness was assessed for changes in response to weather conditions between years. The number of species with the investigated traits in the urban and peri-urban forests was within the range of the number of species observed in the rural forests. The number of saproxylic species was higher in the urban forest but lower in the peri-urban forests compared to the rural forests. The proportions of species with different feeding modes and different development times were similar between the peri-urban, urban and rural forests. The proportions of species with development times of less than 2 months or more than 1 year and of predatory species were similar in the urban and peri-urban forests but higher in the rural forests. The species composition of the other biological traits differed between the peri-urban, urban and rural forests. Species richness and abundance displayed large differences in phenological patterns between 2012 and 2013; these differences are related to differences in the minimum temperature for these years. The results are discussed in relation to forest management in urban forests, the usefulness of hoverflies as a biodiversity indicator and possible extrapolation to other species groups.
Keywords: biological traits, ecosystem services, forest management, saproxylic species, Syrphidae, urban forest
Published in DiRROS: 30.12.2022; Views: 298; Downloads: 161
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Poročilo o preskusu št.: LVG 2022-220 : vzorec št. 2022/00712
Andreja Kavčič, 2022, expertise, arbitration decision

Keywords: varstvo gozdov, morfološke analize, Pinus nigra, žuželke, ličinke, Monochamus sp., črni bor
Published in DiRROS: 16.12.2022; Views: 67; Downloads: 19
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Citizen science and monitoring forest pests : a beneficial alliance?
Maarten De Groot, Michael J.O. Pocock, Jochem Bonte, Pilar Fernandez-Conradi, Elena Valdés-Correcher, 2022, original scientific article

Abstract: Purpose of the Review One of the major threats to tree health, and hence the resilience of forests and their provision of ecosystem services, is new and emerging pests. Therefore, forest health monitoring is of major importance to detect invasive, emerging and native pest outbreaks. This is usually done by foresters and forest health experts, but can also be complemented by citizen scientists. Here, we review the use of citizen science for detection and monitoring, as well as for hypothesis-driven research and evaluation of control measures as part of forest pest surveillance and research. We then examine its limitations and opportunities and make recommendations on the use of citizen science for forest pest monitoring. Recent Findings The main opportunities of citizen scientists for forest health are early warning, early detection of new pests, monitoring of impact of outbreaks and scientific research. Each domain has its own limitations, opportunities and recommendations to follow, as well as their own public engagement strategies. The development of new technologies provides many opportunities to involve citizen scientists in forest pest monitoring. To enhance the benefits of citizen scientists’ inclusion in monitoring, it is important that they are involved in the cocreation of activities. Summary Future monitoring and research may benefit from tailor-made citizen science projects to facilitate successful monitoring by citizen scientists and expand their practice to countries where the forest health sector is less developed. In this sense, citizen scientists can help understand and detect outbreaks of new pests and avoid problems in the future.
Keywords: forest health, community science, forest management, awareness raising, forest protection
Published in DiRROS: 28.11.2022; Views: 106; Downloads: 48
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5.
Forest protection and predominant risks to forests
Andreja Kavčič, Barbara Piškur, Maarten De Groot, Nikica Ogris, 2020, independent scientific component part or a chapter in a monograph

Published in DiRROS: 19.10.2022; Views: 157; Downloads: 64
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6.
Stanje, potencialni vplivi in možnosti obvladovanja hrastove čipkarke v hrastovih gozdovih v Sloveniji
Simon Zidar, Andreja Kavčič, Maarten De Groot, 2022, original scientific article

Abstract: Mineva šest let od prve najdbe invazivne tujerodne hrastove čipkarke (Corythucha arcuata) v Sloveniji, ki se že širi po vsej državi. V zadnjih letih je bilo ugotovljeno, da v slovenskih gozdovih gozdarji vrsto že prepoznavajo kot problematično. Negativni vplivi hrastove čipkarke se kažejo v rjavenju krošenj in zmanjšanju stopnje fotosinteze. Dolgoročni vplivi vrste na hraste in različne druge organizme, povezane s hrasti, pa še niso dobro raziskani. Trenutno potekajo tudi raziskave o možnostih zatiranja tega škodljivega organizma. Pripravili smo povzetek biologije, vplivov in raziskav o možnostih obvladovanja hrastove čipkarke. Za boljše razumevanje širjenja in vpliva hrastove čipkarke v slovenskih gozdovih vas vabimo k sodelovanju in sporočanju opažanj v informacijski sistem Invazivke (www.invazivke.si).
Keywords: varstvo gozdov, hrastova čipkarka, Corythucha arcuata, vpliv, gozdovi, hrast, invazivna tujerodna vrsta, Invazivke.si
Published in DiRROS: 17.10.2022; Views: 172; Downloads: 47
.pdf Full text (440,85 KB)

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Poročilo o preskusu št.: LVG 2022-165 : vzorec št. 2022/00649
Maarten De Groot, 2022, expertise, arbitration decision

Keywords: varstvo gozdov, morfološke analize, Anoplophora glabripennis, azijski kozliček
Published in DiRROS: 17.10.2022; Views: 86; Downloads: 0

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