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The ecological impacts of consumption are well acknowledged, and most people worldwide are likely to have encountered proofs for or information about it. Likewise, online and offline media seem to be full of information on the issue. Even so, large numbers of people are ‘non-political’ consumers, inconsiderate of the ethical and ecological implications of what they buy and consume. Using representative survey data from Sweden collected in 2019, this paper shows that a major reason for non-political consumerism can be seen in the lack of interpersonal ‘recruitment’ efforts; that is, deliberate attempts by some to influence another’s consumption. Moreover, the analyses show that for a person having faced such attempts by others to influence their consumption is distinct from them discussing political consumption issues. With this, the paper also provides one of the first large-N studies confirming recent theoretical propositions of an extended definition of political consumerism: discussion, that is, discursive action, is a sub-form of political consumerism next to boycotting, buycotting, and lifestyle change. Interpersonal influence, in turn, is a key predictor of political consumerism. Altogether, the results suggest that spreading information may feed discursive actions. Yet, to get more people change their consumption choices and engage in political consumerism, what is needed is that people influence each other to do so.

Det här kapitlet undersöker i vilken utsträckning som individer uppfattar att olika frågor handlar om politik och om dessa uppfattningar har samband med individernas ideologiska vänster-höger positioner respektive partisympatier. Med detta fokuserar kapitlet på grundläggande frågor om vad som uppfattas vara politik. De flesta har uppfattningar om vad som utgör politik och av dessa finns det en betydande majoritet som uppfattar att svenskt medlemskap i NATO, konflikter i regeringen, utbyggnad av kärnkraften och arbetslöshet i hög utsträckning handlar om politik, medan för-delning av hushållsarbete i hemmet och matinköp i liten utsträckning handlar om politik. För barnomsorg och eutanasi finns det större variation, även om en majoritet anser att även dessa frågor i mycket hög eller hög utsträckning handlar om politik. Kapitlets analyser indikerar också att vänster-högerposition och partisympatier har samband med individernas uppfattningar.

Diospyros is a large genus of woody flowering plants with a predominantly subtropical and tropical modern distribution. Fossils attributed to Diospyros are mainly leaf impressions from Cretaceous and Cenozoic strata across the Northern Hemisphere. However, it is difficult to assign such fossils to Diospyros because genus-diagnostic leaf characteristics remain to be identified. Unequivocal fossil records of Diospyros are few, including staminate flowers with in situ pollen from the late Eocene of South Australia and dispersed pollen from Cenozoic strata in the Northern Hemisphere. Here, we investigated dispersed pollen and calyx remains from Miocene deposits of Denmark using a combined scanning electron/light microscopy approach. Tricolporate, relatively large pollen with lalongate pori and longbow-shaped colpi and a distinctive micro/nanorugulate exine ornamentation together with persistent 4-lobed flower calyces allow unambiguous identification of the genus. Based on the large size of the calyx, we describe a new fossil-species of Diospyros. Further, a review of the fossil pollen record of Diospyros shows that, in addition to the Australian record, the genus was present in South China, western North America and Europe during the Eocene and in East and South Africa and Central Asia during the Oligo-Miocene. Although still scanty, the pollen record can contribute vital information for time calibrated molecular phylogenies to resolve conflicting biogeographic inferences. A thorough description of the historical biogeography of Diospyros is still in its infancy. While we initiate such a study here, development of a comprehensive picture will require further studies of dispersed pollen grains with high taxonomic resolution.

Premise: The Fagaceae comprise around 1000 tree species in the Northern Hemisphere.Despite an extensive fossil pollen record, reconstructing biogeographic patternsis hampered because it is difficult to achieve good taxonomic resolution withlight microscopy alone. We investigate dispersed pollen of Fagaceae from the Miocene Søby flora, Denmark. We explore the latitudinal gradient in Fagaceae distribution during the Miocene Climatic Optimum (MCO) in Europe and the Northern Hemisphere to compare it with the Eocene Warmhouse and the present. Methods: We investigated dispersed pollen using light and scanning electron microscopy. We assessed biogeographic patterns in Fagaceae during two warm periods in Earth history (MCO, Eocene) and the present. Results: Eight species of Fagaceae were recognized in the Søby flora. Of these, Fagus had a continuous Mediterranean to subarctic distribution during MCO; Quercus sect. Cerris and castaneoids had northern limits in Denmark, and evergreen Quercus sect. Ilex in Central Europe. In a northern hemispheric context, Fagus and sections of Quercus had more northerly distribution limits during Eocene and MCO with maximum northward extensions during Eocene (Fagus, castaneoids) or Oligo‐Miocene (Quercus sects. Cerris and Ilex). The known distribution of the extinct Tricolporopollenites theacoides during MCO included Central Europe and East China, while this taxon thrived in South China during Eocene. Conclusions: More northerly distributions during MCO and Eocene probably were determined by temperature. In contrast, fossil occurrences in areas that are arid or semi‐humid today were determined by maritime conditions in these areas (western North America, Central Asia) during the Cenozoic.

Standard models of plant speciation assume strictly dichotomous genealogies in which a species, theancestor, is replaced by two offspring species. The reality in wind-pollinated trees with long evolutionaryhistories is more complex: species evolve from other species through isolation when genetic drift exceeds gene flow; lineage mixing can give rise to new species (hybrid taxa such as nothospecies and allopolyploids). The multi-copy, potentially multi-locus 5S rDNA is one of few gene regions conserving signal from dichotomous and reticulate evolutionary processes down to the level of intra-genomic recombination. Therefore, it can provide unique insights into the dynamic speciation processes of lineages that diversified tens of millions of years ago. Here, we provide the first high-throughput sequencing (HTS) of the 5S intergenic spacers (5S-IGS) for a lineage of wind-pollinated subtropical to temperate trees, the Fagus crenata – F.sylvatica s.l. lineage, and its distant relative F. japonica. The observed 4963 unique 5S-IGS variants reflect acomplex history of hybrid origins, lineage sorting, mixing via secondary gene flow, and intra-genomic competition between two or more paralogous-homoeologous 5S rDNA lineages. We show that modern species are genetic mosaics and represent a striking case of ongoing reticulate evolution during the past 55 million years., EDS and GWG gratefully acknowledge the support of the German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig funded by the German Research Foundation (FZT 118). The research was partially supported by MIUR (Italian Ministry for Education, University and Research), Law 232/2016, ‘Department of excellence’. Open Access Funding provided by Universita degli Studi della Tuscia within the CRUI-CARE Agreement.

The late Miocene is marked by pronounced environmentalchanges and the appearance of strong temperature andprecipitation seasonality. Although environmental heterogeneityis to be expected during this time, it is challenging to reconstructpalaeoenvironments using plant fossils. We investigated leavesand dispersed spores/pollen from 6.4 to 6 Ma strata inthe intermontane Florina–Ptolemais–Servia Basin (FPS) ofnorthwestern Greece. To assess how well plant fossils reflectthe actual vegetation of the FPS, we assigned fossil taxa tobiomes providing a measure for environmental heterogeneity.Additionally, the palynological assemblage was compared withpollen spectra from modern lake sediments to assess biases inspore/pollen representation in the pollen record. We found aclose match of the Vegora assemblage with modern Fagus–Abiesforests of Turkey. Using taxonomic affinities of leaf fossils, wefurther established close similarities of the Vegora assemblage with modern laurophyllous oak forests of Afghanistan. Finally, using information from sedimentaryenvironment and taphonomy, we distinguished local and distantly growing vegetation types.We thensubjected the plant assemblage of Vegora to different methods of climate reconstruction and discussedtheir potentials and limitations. Leaf and spore/pollen records allow accurate reconstructions ofpalaeoenvironments in the FPS, whereas extra-regional vegetation from coastal lowlands isprobably not captured.

Species distribution models can help predicting range shifts under climate change. The aimof this study is to investigate the late Quaternary distribution of Oriental beech (Fagus orientalis)and to project future distribution ranges under different climate change scenarios usinga combined palaeobotanical, phylogeographic, and modelling approach. Five species distributionmodelling algorithms under the R-package ‘biomod2‘were applied to occurrence dataof Fagus orientalis to predict distributions under present, past (Last Glacial Maximum, 21ka, Mid-Holocene, 6 ka), and future climatic conditions with different scenarios obtainedfrom MIROC-ESM and CCSM4 global climate models. Distribution models were comparedto palaeobotanical and phylogeographic evidence. Pollen data indicate northern Turkey andthe western Caucasus as refugia for Oriental beech during the Last Glacial Maximum.Although pollen records are missing, molecular data point to Last Glacial Maximum refugiain northern Iran. For the mid-Holocene, pollen data support the presence of beech in thestudy region. Species distribution models predicted present and Last Glacial Maximum distributionof Fagus orientalis moderately well yet underestimated mid-Holocene ranges.Future projections under various climate scenarios indicate northern Iran and the Caucasusregion as major refugia for Oriental beech. Combining palaeobotanical, phylogeographicand modelling approaches is useful when making projections about distributions of plants.Palaeobotanical and molecular evidence reject some of the model projections. Nevertheless,the projected range reduction in the Caucasus region and northern Iran highlights theirimportance as long-term refugia, possibly related to higher humidity, stronger environmentaland climatic heterogeneity and strong vertical zonation of the forest vegetation.

How can social science and historical approaches combine in order to enrich the regional studies theme? This chapter focuses on designs for small-N comparative research, specifically the problem of how to apply systematically structured synchronic and diachronic comparisons as a means to analyze interdependence. We hold that comparative sequence design (CSD) poses an important methodological option in that perspective. In contrast to standard research designs, such as cross-sectional design and development design (“historical case studies”), CSD allows for both systematic (i) cross-unit and cross-case comparisons as well as (ii) within-unit analyses. It (iii) opens up for the use of process-oriented models with a focus on explaining developmental outcomes among sub-national level units, and thereby (iv) facilitates analysis of both spatial, temporal and temporal-spatial interdependence among sub-national level units (regions). CSD provides a tool for examining e.g. policy-making and policy diffusion as dynamic, historically contingent processes; and, from the perspective of the historical disciplines, allows analysts to move beyond the limits of traditional case studies of regions and localities.

The early Miocene was a period of major palaeogeographic reorganization in the eastern Mediterranean region, during which time the Anatolian Plateau became subaerial and several intracontinental basins intermittently became connected to the Paratethys and Mediterranean seas. In this paper, we analyse early Miocene vegetation and climate using leaf records, palynological assemblages, and fossil wood at 36 localities from western and central Turkey, most of which have precise age control based on radiometric dating and mammal faunal ages. Using the leaf flora of Güvem (Beş Konak, Keseköy), Climate Leaf-Analysis Multivariate Program (CLAMP) analyses and Köppen signatures were employed to infer a palaeoclimate typical of modern laurel forest regions. Based on the palynological records, abundance of various pollen-taxa was used as a measure of openness of vegetation and regional presence of major tree taxa. Most pollen floras are dominated by tree pollen (ranging from 85 to 98%) and indicated widespread afforestation. In the pollen diagrams, shifts in dominance from swamp forest elements (Taxodioideae) to well-drained forests (Pinaceae) indicate changes in lake levels or phases of basin development. Such shifts may have been associated with the development of more xeric forest vegetation. Wood anatomical features such as false tree rings further may indicate seasonal climate. Pollen diagrams and macrofossils reflect zonal and azonal broadleaf and needleleaf forest and extrazonal open vegetation. The latter occurred in areas with shallow soils on volcanic rocks or limestone (e.g. cycads, Dracaena), or coastal areas (herb dominance). Taxonomic composition and biogeographic affinities suggest laurel forest as a major forest biome on well-drained soils and ecotones between laurel forest and broadleaf deciduous forest biomes. A comparison with younger floras shows that these are neither more diverse nor more warmth-loving despite an increase in global temperature (Mid-Miocen

Wilf et al. (Research Articles, 7 June 2019, eaaw5139) claim that Castanopsis evolved in the Southern Hemisphere from where it spread to its modern distribution in Southeast Asia. However, extensive paleobotanical records of Antarctica and Australia lack evidence of any Fagaceae, and molecular patterns indicate shared biogeographic histories of Castanopsis, Castanea, Lithocarpus, and Quercus subgenus Cerris, making the southern route unlikely.

How can social science and historical approaches combine in order to enrich the regional studies theme? This chapter focuses on designs for small-N comparative research, specifically the problem of how to apply systematically structured synchronic and diachronic comparisons as a means to analyze interdependence. We hold that comparative sequence design (CSD) poses an important methodological option in that perspective. In contrast to standard research designs, such as cross-sectional design and development design (“historical case studies”), CSD allows for both systematic (i) cross-unit and cross-case comparisons as well as (ii) within-unit analyses. It (iii) opens up for the use of process-oriented models with a focus on explaining developmental outcomes among sub-national level units, and thereby (iv) facilitates analysis of both spatial, temporal and temporal-spatial interdependence among sub-national level units (regions). CSD provides a tool for examining e.g. policy-making and policy diffusion as dynamic, historically contingent processes; and, from the perspective of the historical disciplines, allows analysts to move beyond the limits of traditional case studies of regions and localities.