sh.sePublikasjoner
Endre søk
Link to record
Permanent link

Direct link
BETA
Alternativa namn
Publikasjoner (10 av 26) Visa alla publikasjoner
Lehtilä, K., Vinter, T. & Dinnétz, P. (2020). Plant response to habitat amount and configuration in Swedish forests. Diversity & distributions: A journal of biological invasions and biodiversity, 26(3), 329-339
Åpne denne publikasjonen i ny fane eller vindu >>Plant response to habitat amount and configuration in Swedish forests
2020 (engelsk)Inngår i: Diversity & distributions: A journal of biological invasions and biodiversity, ISSN 1366-9516, E-ISSN 1472-4642, Vol. 26, nr 3, s. 329-339Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Aim: There is an intense debate about whether habitat fragmentation has a negative or positive effect on biodiversity. We examined whether species richness and incidence of forest plants were negatively or positively associated with fragmented forest configuration. We also analysed whether the results support the fragmentation threshold hypothesis with fragmentation effects only in landscapes with small habitat amount.

Location: Sodermanland province, south-eastern Sweden (8,388 km(2)).

Methods: Data consisted of plant distribution maps and landscape data on forest amount and configuration in 2.5 km x 2.5 km quadrats. We carried out models including forest area together with clumpiness index (CL models) or edge density (ED models) as the measure of habitat configuration. We focused on plant taxa with positive association between incidence and forest area (163 taxa in CL models; 119 taxa in ED models).

Results: Responses to fragmented configuration were negative more often than by random (33 and 22 taxa in CL and ED models, respectively; includes only models without significant forest area x configuration interaction), whereas positive responses were rare (four taxa in both models). When forest area x configuration interaction was significant, the most common response had a negative effect of fragmented configuration when forest area was low and no effect of configuration when forest area was high, which agrees with the fragmentation threshold hypothesis. Species richness also had this type of response. In another common interactive response, the effect of fragmented configuration was negative at low forest area and positive at high forest area.

Main conclusions: Responses to fragmented forest configuration, when significant, were usually negative. When responses to fragmented configuration were modulated by forest area, they were negative when forest area was low. The findings of complex interaction between forest area and configuration have implications for selection of appropriate patch sizes in sustainable forest management.

sted, utgiver, år, opplag, sider
John Wiley & Sons, 2020
Emneord
clumpiness, critical thresholds, forest landscapes, fragmentation, habitat availability, habitat configuration, species incidence, species richness
HSV kategori
Identifikatorer
urn:nbn:se:sh:diva-39784 (URN)10.1111/ddi.13019 (DOI)000504539600001 ()2-s2.0-85077183469 (Scopus ID)
Forskningsfinansiär
The Foundation for Baltic and East European Studies
Tilgjengelig fra: 2020-01-14 Laget: 2020-01-14 Sist oppdatert: 2020-03-02bibliografisk kontrollert
Porseryd, T., Larsson, J., Kellner, M., Bollner, T., Dinnétz, P. & Porsch Hällström, I. (2019). Altered non-reproductive behavior and feminization caused by developmental exposure to 17α-ethinylestradiol persist to adulthood in three-spined stickleback (Gasterosteus aculeatus). Aquatic Toxicology, 207, 142-152
Åpne denne publikasjonen i ny fane eller vindu >>Altered non-reproductive behavior and feminization caused by developmental exposure to 17α-ethinylestradiol persist to adulthood in three-spined stickleback (Gasterosteus aculeatus)
Vise andre…
2019 (engelsk)Inngår i: Aquatic Toxicology, ISSN 0166-445X, E-ISSN 1879-1514, Vol. 207, s. 142-152Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The synthetic estrogen 17α-ethinylestradiol (EE2), ubiquitous in the aquatic environment and commonly detected in sewage effluents, interferes with the endocrine system in multiple ways. Exposure during sensitive windows of development causes persistent effects on fertility, reproductive and non-reproductive behavior in mammals and fish. In the present study, three-spined stickleback (Gasterosteus aculeatus) were exposed to nominal 0 and 20 ng/L EE2 from fertilization to 7 weeks post-hatch. After 8 months of remediation in clean water three non-reproductive behaviors, not previously analyzed in developmentally EE2-exposed progeny of wild-caught fish, were evaluated. Chemical analysis revealed that the nominal 0 and 20 ng/L exposure contained 5 and 30 ng/L EE2, respectively. Therefore, the use of control fish from previous experiments was necessary for comparisons. Fish exposed during development showed significant concentration-dependent reduction in anxiety-like behavior in the scototaxis (light/dark preference) test by means of shorter latency to first entrance to the white compartment, more visits in white, and longer total time in white compared to unexposed fish. In the novel tank test, developmental exposure significantly increased the number of transitions to the upper half of the aquaria. Exposure to EE2 during development did not alter shoal cohesion in the shoaling test compared with unexposed fish but fish exposed to 30 ng/L EE2 had significantly longer latency to leave the shoal and fewer transitions away from the shoal compared to fish exposed to 5 ng/L EE2. Skewed sex ratio with more females, sex reversal in genetic males as well as intersex in males was observed after exposure to 30, but not 5 ng/L EE2. In conclusion, EE2 exposure during development in three-spined stickleback resulted in persistent effects on anxiety-like behaviors. These long-term effects from developmental exposure are likely to be of higher relevance for natural populations than are short-term effects from adult exposure.

sted, utgiver, år, opplag, sider
Elsevier, 2019
Emneord
Endocrine disruption, 17α-ethinylestradiol, fish, estrogens, developmental exposure, behavior, intersex
HSV kategori
Forskningsprogram
Miljövetenskapliga studier; Östersjö- och Östeuropaforskning
Identifikatorer
urn:nbn:se:sh:diva-34932 (URN)10.1016/j.aquatox.2018.11.024 (DOI)000457659300016 ()30572174 (PubMedID)2-s2.0-85058462347 (Scopus ID)1556/42/2011 (Lokal ID)1556/42/2011 (Arkivnummer)1556/42/2011 (OAI)
Forskningsfinansiär
The Foundation for Baltic and East European Studies, 1556/42/2011
Merknad

As manuscript in dissertation.

Tilgjengelig fra: 2018-05-04 Laget: 2018-05-04 Sist oppdatert: 2020-03-24bibliografisk kontrollert
Henning, C., Aygül, N., Dinnétz, P., Wallgren, K. & Özenci, V. (2019). Detailed analysis of the characteristics of sample volume in blood culture bottles. Journal of Clinical Microbiology, 57(8), Article ID e00268-19.
Åpne denne publikasjonen i ny fane eller vindu >>Detailed analysis of the characteristics of sample volume in blood culture bottles
Vise andre…
2019 (engelsk)Inngår i: Journal of Clinical Microbiology, ISSN 0095-1137, E-ISSN 1098-660X, Vol. 57, nr 8, artikkel-id e00268-19Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Blood volume is the most important variable, for detection of microorganisms in blood cultures (BC). Most standards recommend 40-60 ml blood, collected in several BC bottles filled up to 10 ml. We measured blood volume in individual BC bottles, and analysed the association of hospital, bottle type, day of the week, daily sampling time, and age and gender of the patient, with sampling volume and BC result. The variation in blood volume per BC bottle was analysed in a mixed linear model using hospital, bottle type, weekday, sampling time, age and gender as fixed factors, and patient ID and episode as random factors to control for repetitive sampling of individual patients. Only 18 % of all bottles were filled with the recommended 8-10 ml, and 47 % were filled with less than 8 ml. The mean (±SE) volume was larger in positive 9.09 (±0.15) compared to negative bottles 8.47 (±0.07) (p<0.001). Blood volume was larger in BacT/ALERT-FA Plus than in -FN Plus BC bottles (p<0.001). There was significantly lower volumes collected during the night (p<0.001). The volume of blood collected decreased significantly with increasing patient age (p<0.001). Larger volumes were collected from males compared to females, 8.78 (±0.06) vs. 8.36 (±0.06) ml (mean ± SE) respectively (p<0.001). The odds of detecting a positive patient increases with 13 % for each additional ml blood drawn. Our results show that we need to work actively with development of blood sampling routines to overcome age and gender effects, and to optimize blood sampling volumes.

sted, utgiver, år, opplag, sider
American Society for Microbiology, 2019
HSV kategori
Identifikatorer
urn:nbn:se:sh:diva-38304 (URN)10.1128/JCM.00268-19 (DOI)000477738500009 ()31092594 (PubMedID)2-s2.0-85069897656 (Scopus ID)
Tilgjengelig fra: 2019-06-11 Laget: 2019-06-11 Sist oppdatert: 2019-08-15bibliografisk kontrollert
Janzén, T., Petersson, M., Hammer, M., Aspán, A. & Dinnétz, P. (2019). Equine Granulocytic Anaplasmosis in Southern Sweden: Associations with coniferous forest, water bodies and landscape heterogeneity. Agriculture, Ecosystems & Environment, 285, Article ID 106626.
Åpne denne publikasjonen i ny fane eller vindu >>Equine Granulocytic Anaplasmosis in Southern Sweden: Associations with coniferous forest, water bodies and landscape heterogeneity
Vise andre…
2019 (engelsk)Inngår i: Agriculture, Ecosystems & Environment, ISSN 0167-8809, E-ISSN 1873-2305, Vol. 285, artikkel-id 106626Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Landscape characteristics influence both vector and host habitats affecting the spatial and temporal distribution of vector-borne diseases. Anaplasma phagocytophilum is one of the most widespread tick-borne diseases in Europe causing tick-borne fever (TBF) in domestic ruminants, and granulocytic anaplasmosis in humans, horses and companion animals. The aim of this study was to identify landscape factors associated with Equine Granulocytic Anaplasmosis (EGA) cases in a refined temporal and spatial analysis by combining land cover data and presence/absence disease data, using a geographical information system (GIS). This study is a retrospective analysis utilizing 1030 EGA diagnostic test results extracted from the National Veterinary Institute (SVA, Sweden). The association between EGA and different land cover types was analyzed with generalized linear models. To analyze the relation between landscape heterogeneity and EGA, we calculated the Gini-Simpson index. Our results showed a significant increase in the proportion positive EGA cases from 2002 to 2015 and marked differences in the seasonal within year distribution of EGA cases. The association with landscape configuration is shown by the positive relationship between A. phagocytophilum and coniferous forest, water bodies, and landscape heterogeneity, respectively. The information on the eco-epidemiological drivers for EGA can be central for disease control and prevention. Our method of linking land cover to disease risk may be applied to other vector-borne diseases and to other study regions.

sted, utgiver, år, opplag, sider
Elsevier, 2019
Emneord
Epidemiology, Landscape ecology, Vector-borne diseases
HSV kategori
Forskningsprogram
Miljövetenskapliga studier; Östersjö- och Östeuropaforskning
Identifikatorer
urn:nbn:se:sh:diva-38735 (URN)10.1016/j.agee.2019.106626 (DOI)000500213400016 ()2-s2.0-85070302032 (Scopus ID)
Forskningsfinansiär
The Foundation for Baltic and East European Studies, 52/18
Tilgjengelig fra: 2019-08-15 Laget: 2019-08-15 Sist oppdatert: 2019-12-27bibliografisk kontrollert
Sommer, C., Hu, Y., Nascimento, F., Gunnarsson, J., Dinnétz, P. & Sjöling, S. (2019). Reduced large-scale beta-diversity and changes in metapopulation patterns of sediment bacterial communities following a major inflow into the Baltic Sea. Environmental Microbiology
Åpne denne publikasjonen i ny fane eller vindu >>Reduced large-scale beta-diversity and changes in metapopulation patterns of sediment bacterial communities following a major inflow into the Baltic Sea
Vise andre…
2019 (engelsk)Inngår i: Environmental Microbiology, ISSN 1462-2912, E-ISSN 1462-2920Artikkel i tidsskrift (Annet vitenskapelig) Submitted
Abstract [en]

The Baltic Sea is heavily affected by eutrophication caused by nutrient overload, climate, and infrequency in major inflow events, resulting in widespread areas of oxygen depleted waters and sediments. A Major Baltic Inflow event (MBI) brings saline and oxygenated Atlantic Ocean water into the Baltic Sea, as occurred in 2014. Using a theoretical framework based on metapopulation and metacommunity theory we predicted a transition of the sediment bacterial community after the MBI, from a more heterogeneous community pattern driven by local colonisation-extinction dynamics towards a more pronounced environmental gradient but with reduced beta-diversities. Community diversity patterns before and after the MBI were investigated by 16S rRNA gene sequencing of samples from 42 Baltic Sea environmental monitoring stations. Results showed strong metapopulation dynamics with many satellite and few core taxa. NMDS-ordination showed distinct geographical clustering. After the MBI, alpha-diversity increased, beta-diversity decreased and a significant distance-decay relationship developed. Changes in community composition correlated significantly with changes in oxygen and salinity from 2010 to 2015. Our results indicate strong metapopulation and metacommunity structuring of sediment bacterial diversity and composition in the Baltic Sea and how movements of large-scale water bodies affect bacterial communities through changes in large-scale environmental gradients and dispersal patterns.

sted, utgiver, år, opplag, sider
John Wiley & Sons, 2019
Emneord
aquatic microbiology, bacterial diversity, 16S rRNA gene, high-throughput sequencing, biogeography, Major Baltic Inflow, monitoring, oxygen decline, sediment, DADA2
HSV kategori
Forskningsprogram
Miljövetenskapliga studier; Östersjö- och Östeuropaforskning
Identifikatorer
urn:nbn:se:sh:diva-39748 (URN)
Forskningsfinansiär
The Foundation for Baltic and East European Studies, 3150-3.1.1-2017Swedish Research Council Formas, 2016-00804
Merknad

As manuscript in dissertation.

Tilgjengelig fra: 2020-01-09 Laget: 2020-01-09 Sist oppdatert: 2020-01-09bibliografisk kontrollert
Porseryd, T., Reyhanian Caspillo, N., Volkova, K., Elabbas, L., Källman, T., Dinnétz, P., . . . Porsch Hällström, I. (2018). Testis transcriptome alterations in zebrafish (Danio rerio) with reduced fertility due to developmental exposure to 17α-ethinyl estradiol. General and Comparative Endocrinology, 262, 44-58
Åpne denne publikasjonen i ny fane eller vindu >>Testis transcriptome alterations in zebrafish (Danio rerio) with reduced fertility due to developmental exposure to 17α-ethinyl estradiol
Vise andre…
2018 (engelsk)Inngår i: General and Comparative Endocrinology, ISSN 0016-6480, E-ISSN 1095-6840, Vol. 262, s. 44-58Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

17α-Ethinylestradiol (EE2) is a ubiquitous aquatic contaminant shown to decrease fish fertility at low concentrations, especially in fish exposed during development. The mechanisms of the decreased fertility are not fully understood. In this study, we perform transcriptome analysis by RNA sequencing of testes from zebrafish with previously reported lowered fertility due to exposure to low concentrations of EE2during development. Fish were exposed to 1.2 and 1.6 ng/L (measured concentration; nominal concentrations 3 and 10 ng/L) of EE2 from fertilization to 80 days of age, followed by 82 days of remediation in clean water. RNA sequencing analysis revealed 249 and 16 genes to be differentially expressed after exposure to 1.2 and 1.6 ng/L, respectively; a larger inter-sample variation was noted in the latter. Expression of 11 genes were altered by both exposures and in the same direction. The coding sequences most affected could be categorized to the putative functions cell signalling, proteolysis, protein metabolic transport and lipid metabolic process. Several homeobox transcription factors involved in development and differentiation showed increased expression in response to EE2 and differential expression of genes related to cell death, differentiation and proliferation was observed. In addition, several genes related to steroid synthesis, testis development and function were differentially expressed. A number of genes associated with spermatogenesis in zebrafish and/or mouse were also found to be differentially expressed. Further, differences in non-coding sequences were observed, among them several differentially expressed miRNA that might contribute to testis gene regulation at post-transcriptional level. This study has generated insights of changes in gene expression that accompany fertility alterations in zebrafish males that persist after developmental exposure to environmental relevant concentrations of EE2 that persist followed by clean water to adulthood. Hopefully, this will generate hypotheses to test in search for mechanistic explanations.

HSV kategori
Identifikatorer
urn:nbn:se:sh:diva-29441 (URN)10.1016/j.ygcen.2018.03.011 (DOI)000430995100006 ()29526718 (PubMedID)2-s2.0-85044314644 (Scopus ID)1556/42/2011 (Lokal ID)1556/42/2011 (Arkivnummer)1556/42/2011 (OAI)
Forskningsfinansiär
The Foundation for Baltic and East European Studies, 1556/42/2011Stockholm County Council, 806/3.1.1/2014
Merknad

Som manuskript i avhandling. As manuscript in dissertation.

Tilgjengelig fra: 2016-02-02 Laget: 2016-02-04 Sist oppdatert: 2019-04-18bibliografisk kontrollert
Porseryd, T., Kellner, M., Reyhanian, N., Volkova, K., Elabbas, L., Ullah, S., . . . Porsch Hällström, I. (2017). Combinatory effects of low concentrations of 17α-etinylestradiol and citalopram on non-reproductive behavior in adult zebrafish (Danio rerio). Aquatic Toxicology, 193, 9-17
Åpne denne publikasjonen i ny fane eller vindu >>Combinatory effects of low concentrations of 17α-etinylestradiol and citalopram on non-reproductive behavior in adult zebrafish (Danio rerio)
Vise andre…
2017 (engelsk)Inngår i: Aquatic Toxicology, ISSN 0166-445X, E-ISSN 1879-1514, Vol. 193, s. 9-17Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Sewage treatment plant effluents contain a complex mixture of pharmaceuticals, personal care products and industrial chemicals, thus exposing aquatic organisms. Still, the consequences of exposure to combinations of different classes of drugs is largely unknown. In this study, we expose adult zebrafish (Danio rerio) males and females to low, environmentally relevant concentrations of the endocrine disrupting chemical 17α-ethinyl estradiol (EE2) and the selective serotonin re-uptake inhibitor (SSRI) citalopram, alone and in combination, and analyse three non-reproductive behaviours of importance for population fitness.

Two weeks exposure to 0.1 and 0.5 ng/LEE2 resulted in increased anxiety in males in the scototaxis (light/dark preference) test. Significantly longer latency periods before entering the white zone and fewer visits in the white zone were observed in males exposed to both 0.1 and 0.5 ng/LEE2 compared to unexposed males. No significant effects of citalopram alone (0.1 and 0.5 µg/L) were observed in the scototaxis test. The combined exposures (0.1 ng/L EE2 + 0.1 µg/L citalopram and 0.5 ng/L EE2 + 0.5 µg/L citalopram) resulted in abolishment of the anxiogenic effects of EE2, with significantly shorter latency period (low dose) and more transitions to white (high and low dose) than in fish exposed to EE2 alone. No significant effects of either EE2, citalopramor the combination of the two were observed in females. In the novel tank test, significantly more transitions to the upper half of the tank were observed in males exposed to 0.1 µg/L citalopram alone compared to unexposed males while males exposed to 0.1 ng/lEE2 had significantly shorter latency period to enter the upper half. Exposure to the combination of the two low concentrations did, however, result in a significantly longer latency and fewer transitions to upper half compared to both control, EE2- and citalopram-exposed males. These males also spent significantly less time in the upper half than the fish exposed to 0.1 ng/l EE2 or 0.1 µg/l citalopram alone. No significant effects on novel tank behaviour were observed in females or males exposed to the higher concentrations. In the shoaling test, males exposed to 0.1 µg/L citalopram and females exposed to 0.5 ng/l EE2 made significantly fewer transitions away from peers while males exposed to 0.1 µg/L citalopram + 0.1 ng/l EE2 performed significantly more transitions than the fish exposed to 0.1 µg/L citalopram alone.

In conclusion, this study shows that very low concentrations ofEE2, at or slightly above the predicted noeffect concentration (NOEC), affects anxiety in zebrafish males. Furthermore, citalopram, in spite of marginal effect of its own at such low levels, counteracts the response to EE2. This study represents an initial effort to understand the effects on water-living organisms of the cocktails of anthropogenic substances contaminating aquatic environments.

sted, utgiver, år, opplag, sider
Elsevier, 2017
HSV kategori
Forskningsprogram
Miljövetenskapliga studier
Identifikatorer
urn:nbn:se:sh:diva-32427 (URN)10.1016/j.aquatox.2017.10.001 (DOI)000417658800002 ()29017090 (PubMedID)2-s2.0-85030678324 (Scopus ID)
Forskningsfinansiär
Stockholm County Council, 806/3.1.1/2014The Foundation for Baltic and East European Studies, 1352/3.1.1/2015
Merknad

As manuscript in dissertation with title: Combinatory effects of low-dose 17alpha-etinyl estradiol and citalopram on behavior in adult zebrafish (Danio rerio)

Tilgjengelig fra: 2017-04-19 Laget: 2017-04-19 Sist oppdatert: 2020-03-24bibliografisk kontrollert
Asghar, N., Pettersson, J.-O. H., Dinnétz, P., Andreassen, Å. & Johansson, M. (2017). Deep sequencing analysis of tick-borne encephalitis virus from questing ticks at natural foci reveals similarities between quasispecies pools of the virus. Journal of General Virology, 98(3), 413-421
Åpne denne publikasjonen i ny fane eller vindu >>Deep sequencing analysis of tick-borne encephalitis virus from questing ticks at natural foci reveals similarities between quasispecies pools of the virus
Vise andre…
2017 (engelsk)Inngår i: Journal of General Virology, ISSN 0022-1317, E-ISSN 1465-2099, Vol. 98, nr 3, s. 413-421Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Every year, tick-borne encephalitis virus (TBEV) causes severe central nervous system infection in 10 000 to 15 000 people in Europe and Asia. TBEV is maintained in the environment by an enzootic cycle that requires a tick vector and a vertebrate host, and the adaptation of TBEV to vertebrate and invertebrate environments is essential for TBEV persistence in nature. This adaptation is facilitated by the error-prone nature of the virus's RNA-dependent RNA polymerase, which generates genetically distinct virus variants called quasispecies. TBEV shows a focal geographical distribution pattern where each focus represents a TBEV hotspot. Here, we sequenced and characterized two TBEV genomes, JP-296 and JP-554, from questing Ixodes ricinus ticks at a TBEV focus in central Sweden. Phylogenetic analysis showed geographical clustering among the newly sequenced strains and three previously sequenced Scandinavian strains, Toro-2003, Saringe-2009 and Mandal-2009, which originated from the same ancestor. Among these five Scandinavian TBEV strains, only Mandal-2009 showed a large deletion within the 3' non-coding region (NCR), similar to the highly virulent TBEV strain Hypr. Deep sequencing of JP-296, JP-554 and Mandal-2009 revealed significantly high quasispecies diversity for JP-296 and JP-554, with intact 3' NCRs, compared to the low diversity in Mandal-2009, with a truncated 3' NCR. Single-nucleotide polymorphism analysis showed that 40% of the single-nucleotide polymorphisms were common between quasispecies populations of JP-296 and JP-554, indicating a putative mechanism for how TBEV persists and is maintained within its natural foci.

Emneord
:Ixodes ricinus; natural foci; non-coding region; quasispecies; Scandinavia; tick-borne encephalitis virus
HSV kategori
Forskningsprogram
Miljövetenskapliga studier; Östersjö- och Östeuropaforskning
Identifikatorer
urn:nbn:se:sh:diva-31158 (URN)10.1099/jgv.0.000704 (DOI)000399235600013 ()28073402 (PubMedID)2-s2.0-85016952345 (Scopus ID)1330/42/2010 (Lokal ID)1330/42/2010 (Arkivnummer)1330/42/2010 (OAI)
Forskningsfinansiär
The Foundation for Baltic and East European Studies, 1330/42/2010
Merknad

Som manuskript i avhandling. As manuscript in dissertation.

Tilgjengelig fra: 2016-11-16 Laget: 2016-11-16 Sist oppdatert: 2019-04-18bibliografisk kontrollert
Lehtilä, K. & Dinnétz, P. (2017). Environmental Impacts of Rural Landscape Change During the Post-Communist Period in the Baltic Sea Region. In: Bali Swain, Ranjula (Ed.), Environmental Challenges in the Baltic Region: A Perspective from Economics (pp. 155-171). Basingstoke: Palgrave Macmillan
Åpne denne publikasjonen i ny fane eller vindu >>Environmental Impacts of Rural Landscape Change During the Post-Communist Period in the Baltic Sea Region
2017 (engelsk)Inngår i: Environmental Challenges in the Baltic Region: A Perspective from Economics / [ed] Bali Swain, Ranjula, Basingstoke: Palgrave Macmillan, 2017, s. 155-171Kapittel i bok, del av antologi (Fagfellevurdert)
sted, utgiver, år, opplag, sider
Basingstoke: Palgrave Macmillan, 2017
HSV kategori
Forskningsprogram
Östersjö- och Östeuropaforskning
Identifikatorer
urn:nbn:se:sh:diva-33360 (URN)10.1007/978-3-319-56007-6_7 (DOI)2-s2.0-85034862960 (Scopus ID)978-3-319-56006-9 (ISBN)978-3-319-56007-6 (ISBN)
Tilgjengelig fra: 2017-09-12 Laget: 2017-09-12 Sist oppdatert: 2019-04-18bibliografisk kontrollert
Alzhanova-Ericsson, A. T., Bergman, C. & Dinnétz, P. (2017). Lecture attendance is a pivotal factor for improving prospective teachers’ academic performance in Teaching and Learning Mathematics. Journal of Further and Higher Education, 41(1), 1-15
Åpne denne publikasjonen i ny fane eller vindu >>Lecture attendance is a pivotal factor for improving prospective teachers’ academic performance in Teaching and Learning Mathematics
2017 (engelsk)Inngår i: Journal of Further and Higher Education, ISSN 0309-877X, E-ISSN 0013-1326, Vol. 41, nr 1, s. 1-15Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The value and importance of lectures in higher education is part of a modern education discourse worldwide. This study aims to estimate the importance of lectures for prospective teachers of kindergarten, preschool and early primary school. We analysed academic achievements of prospective teachers who had either mandatorily or voluntarily attended lectures in the subject of teaching and learning mathematics. Students’ examination grades in a maths course with mandatory or voluntary lecture attendance were analysed with a logistic model testing the association between lecture attendance requirement and grades. We show that mandatory lecture attendance (1) more than double the odds of students receiving a pass grade when their situated and tacit knowledge was examined and (2) quadrupled the odds of students achieving the highest grade (pass with distinction) when both their understanding of elementary mathematics and their situated and tacit knowledge of teaching and learning mathematics were examined. Our study provides evidence for a significant positive role of lecture attendance for students acquiring skills in Teaching and Learning Mathematics. While attending lectures students receive situated tacit knowledge of the subject which is otherwise difficult, if not impossible, for them to obtain in a different way. The observed improvement may have an additional positive effect in being a step towards overcoming a maths anxiety, which is otherwise relatively common among prospective teachers.

Emneord
collective tacit knowledge, explicit knowledge, logistic model, natural sciences, situated knowledge
HSV kategori
Identifikatorer
urn:nbn:se:sh:diva-26536 (URN)10.1080/0309877X.2014.1000277 (DOI)000396689200001 ()2-s2.0-84923273704 (Scopus ID)
Forskningsfinansiär
The Foundation for Baltic and East European Studies
Tilgjengelig fra: 2015-03-06 Laget: 2015-03-06 Sist oppdatert: 2020-03-09bibliografisk kontrollert
Organisasjoner
Identifikatorer
ORCID-id: ORCID iD iconorcid.org/0000-0002-7043-9815