Personal vid Högskolan
Göran Sahlén
Professor
( Akademin för företagande, innovation och hållbarhet )
Arbetar med
Min forskning handlar om hur naturen förändras över tiden, där mänskligt genererade processer (bl.a. klimatförändringar, skogsbruk, jordbruk...) samverkar med naturliga variationer. Jag använder insektsgruppen trollsländor som modellorganism där art- och individantal i olika områden ger underlagsdata.
Ett pågående projekt är hur hela artsamhällen påverkas vid försurning, uppvärmning och brunifiering i sjöar och våtmarker i södra och mellersta Sverige. Detta ökar förståelsen för hur arter koloniserar olika miljöer och vilka faktorer som driver (åter)kolonisering och utdöende. Ett liknande projekt pågår i södra Brasilien där faktorer som driver artsammansättningen och överlevnaden hos arter i vattensamlingar på pampas undersöks tillsammans med lokala forskare.
Ett andra projekt som är ett samarbete med amerikanska forskare handlar om hur extremt nordliga arter är anpassade till värme och köld. Då övergångarna mellan sommar och vinter sker mycket snabbare i norr kan dessa arter vara genetiskt predisponerade att klara snabba klimatsvängningar och därmed ha en bättre förutsättning att klara den pågående uppvärmningen av planeten.
Jag är medlem i expertkommittén för limniska evertebrater för den svenska rödlistan samt aktiv i rödlistning av trollsländor på europeisk och global nivå.
Nyckelord: Odonata, trollsländor, artsamhällen, klimatförändringar, species turnover
Personlig
Senaste publikationer
Artikel i tidskrift
Article in journal
Land cover is the main driver of the distribution patterns of larval Odonata assemblages in freshwater wetlands of the Brazilian Pampa
(2025) PublishedScientists' warning on the need for greater inclusion of dragonflies in global conservation
(2025) PublishedTaxonomic Ratios of Odonata (Insecta) Indicate Anthropogenic Landscape Disturbances in Subtropical Grassland Streams
(2025) PublishedDragonflies within and outside a protected area : a comparison revealing the role of well-preserved atlantic forests in the preservation of critically endangered, phytotelmatous species
(2022) PublishedAgricultural land use affects the heterogeneity of Odonata communities in the Brazilian Pampa
(2022) PublishedThe balance of common vs. rare : a study of dragonfly (Insecta: Odonata) assemblages in the Brazilian Pampa biome
(2022) PublishedEvidence for widespread gene flow and migration in the Globe Skimmer dragonfly Pantala flavescens
(2022) PublishedIntraspecific Morphological Variation in the Dragonfly Erythrodiplax Media (Odonata: Libellulidae) Among South American Grassland Physiognomies
(2021) PublishedComparative phylogeography uncovers evolutionary past of Holarctic dragonflies
(2021) PublishedTowards Global Volunteer Monitoring of Odonate Abundance
(2020) PublishedRapid functional traits turnover in boreal dragonfly communities (Odonata)
(2020) PublishedOdonate species occupancy frequency distribution and abundance–occupancy relationship patterns intemporal and permanent water bodies in a subtropical area
(2020) PublishedEcoregions within the Brazilian Pampa biome reflected in Odonata species assemblies
(2019) PublishedPredicting the effects of future climate change on the distribution of an endemic damselfly (Odonata, Coenagrionidae) in subtropical South American grasslands
(2018) PublishedWater body type and land cover shape the dragonfly communities (Odonata) in the Pampa biome, Rio Grande do Sul, Brazil
(2018) PublishedDescription of the final stadium larva of Erythrodiplax media (Odonata: Libellulidae) with preliminary key to known South American larvae in the genus
(2018) PublishedRegional variations in occupancy frequency distributions patterns between odonate assemblages in Fennoscandia
(2018) PublishedEffect of tree plantations on the functional composition of Odonata species in the highlands of southern Brazil
(2018) PublishedExtremely low genetic diversity in a circumpolar dragonfly species, Somatochlora sahlbergi (Insecta: Odonata: Anisoptera)
(2018) PublishedPreliminary dragonfly (Odonata) species list from the Pampa biome in Rio Grande do Sul, Brazil, with ecological notes for 19 new records for the state
(2017) PublishedNegative impact of lake liming programmes on the species richness of dragonflies (Odonata) : a study from southern Sweden
(2017) PublishedEffects of exotic tree plantations on the richness of dragonflies (Odonata) in Atlantic Forest, Rio Grande do Sul, Brazil
(2016) PublishedList of Odonates from the Floresta Nacional de São Francisco de Paula (FLONA - SFP), with two new distribution records for Rio Grande do Sul, Brazil
(2016) PublishedSurvival possibilities of the dragonfly Aeshna viridis (Insecta, Odonata) in southern Sweden predicted from dispersal possibilities
(2016) PublishedMan-made lakes form species-rich dragonfly communities in the Brazilian Atlantic Forest (Odonata)
(2016) PublishedFor consistency’s sake? A reply to Bybee et al.
(2016) PublishedA Global Population Genetic Study of Pantala flavescens
(2016) PublishedTesting Dragonflies as Species Richness Indicators in a Fragmented Subtropical Atlantic Forest Environment
(2015) PublishedDragonflies (Odonata) from the Taquari River valley region, Rio Grande do Sul, Brazil
(2015) PublishedFarmland versus forest : comparing changes in Odonata species composition in western and eastern Sweden
(2014) PublishedDragonflies (Odonata) in Subtropical Atlantic Forest fragments in Rio Grande do Sul, Brazil : seasonal diversity and composition
(2013) PublishedEvolution of reproductive strategies in libellulid dragonflies (Odonata: Anisoptera)
(2012) PublishedMorphology of follicle cells of Libellulidae (Odonata)
(2011) PublishedDoes one community shape the other? : Dragonflies and fish in Swedish lakes
(2010) PublishedContinuous and stepwise oocyte production in Libellulidae (Anisoptera)
(2010) PublishedMorphological differences in the ovary of Libellulidae (Odonata)
(2009) PublishedPredator-induced spine length and exocuticle thickness in Leucorrhinia dubia (Insecta: Odonata) : a simple physiological trade-off?
(2009) PublishedWetland creation in agricultural landscapes : Biodiversity benefits on local and regional scales
(2009) PublishedMorphology of dragonfly larvae along a habitat gradient : interactions with feeding behaviour and growth (Odonata: Libellulidae)
(2008) PublishedDragonfly community re-organisation in boreal forest lakes : rapid species turnover driven by climate change?
(2008) PublishedThe dry season governs the reproduction of three pseudostigmatid zygopterans in Costa Rica : (Odonata Pseudostigmatidae)
(2007) PublishedDragonfly Assemblages in Arid Tropical Environments : A Case Study from Western Namibia
(2006) PublishedBehavioural and life history traits in temporary and perennial waters : comparisons among three pairs of sibling dragonfly species
(2005) Published
Rapport
Report
European Dragonflies : Moving from assessment to conservation planning. A report to the European Commission by the IUCN SSC Dragonfly Specialist Group and the IUCN SSC Conservation Planning Specialist Group
(2024)ARC13 – Assessment of Research and Coproduction : Reports from the assessment of all research at Halmstad University 2013
(2014)European Red List of Dragonflies
(2010)
Kapitel i bok, del av antologi
Chapter in book
Odonata assemblages in human-modified landscapes
(2023)Order Odonata
(2015)
Konferensbidrag
Conference paper
Combating eutrophication and biodiversity loss in Sweden : importance of constructed wetlands in the agricultural landscape
(2007)Specialists vs. generalists in the Odonata - the importance of forest environments in the formation of diverse species pools
(2005)
