Description: From the anthracological study of considerable quantities of charcoal recovered from the excavation of the settlement at Los Castillejos de Montefrío, a synthesis was made of the vegetation dynamics during Recent Prehistory of the area, from the middle of the sixth millennium bc to the beginning of the second millennium bc . The vegetation dynamics mark four anthracological phases over this sequence. From the Late Neolithic (end of the fifth millennium bc ) the influence of different activities such as livestock raising, burning and agriculture become evident in the development of the natural vegetation, altering species composition and appearance frequency. The last anthracological phase, MF4, spanning the second half of the third millennium bc , saw the regeneration of the tree vegetation as certain former activities ceased, indicating the environmental singularity of this enclave within the context of the southern Iberian Peninsula.

Description: In 2016 the 100th birthday of palynology was celebrated: Lennart von Post introduced the scientific discipline in 1916 at lectures in Oslo and Stockholm. However, von Post was not the first to study pollen, and research dates back to the works of Nehemiah Grew and Marcello Malpighi in the late 17th century. Afterwards studies focussed mainly on the role of pollen for plant reproduction, and on pollen morphology. The first scientist who observed fossil pollen was Heinrich Göppert in 1836. However, it was not until the 1890s and 1900s that the study of pollen became a regular component in the reconstruction of past vegetation. Lennart von Post subsequently developed theoretical and practical concepts and methods of pollen analysis, and raised palynology from its infancy into the mature scientific discipline that flourished greatly during the century that followed.

Description: In the early 1980s Naomi Miller changed the field of palaeoethnobotany; her research into whether the ancient seed eaters of southwest Asia were human or herbivore opened an ongoing debate over the impact that burning of animal dung had on the formation of archaeobotanical assemblages, and how researchers can differentiate between human and animal food remains. As the number of systematic archaeobotanical studies across West Asia and many other parts of the world increase, we are continually confronted with the question of the significance of dung burning. Herd animal dung is the dominant fuel source in many parts of West Asia today and the high densities of seeds of wild plants in archaeobotanical assemblages suggest that people were using dung as fuel across Inner Asia for millennia. Seed assemblages that represent herd animal dung are assisting scholars in understanding palaeoecology and herd animal diet in the past as well as human economy and pasturing practices. However, interpreting these assemblages is not always simple and there are predictable biases that need to be taken into account, notably an overrepresentation of endozoochoric seeds (seeds dispersed through animal ingestion). In West Asia, the most prominent of such seeds in dung assemblages are from the Amaranthaceae family, notably Chenopodium .

Description: Modern pollen spectra can improve the interpretation of fossil pollen records used to reconstruct past vegetation, climate and human impacts. It is important, therefore, to carefully examine the relationships between modern pollen spectra, vegetation, climate and human activity. Here, we present the results of an analysis of the pollen spectra of 143 surface pollen samples from farmland, wasteland, desert, steppe/meadow, forest and river valley along a transect from Lanzhou to Urumqi, in northwestern China. The modern pollen assemblages are mainly composed of Amaranthaceae, Artemisia , Poaceae, Asteraceae, Ephedra and Nitraria . The results indicate that in general the surface pollen assemblages of different vegetation types reliably represent the modern vegetation in terms of the composition of the main taxa and the dominant types. Farmland is dominated by cereal-type (≥ 15%) and Amaranthaceae (≥ 20%), while the pollen assemblages of wasteland (i.e. the vegetation immediately surrounding farmland) are mainly composed of Amaranthaceae (≥ 25%), Artemisia (≥ 20%), Poaceae (≥ 10%), Asteraceae (≥ 5%) and Cyperaceae (≥ 5%). Amaranthaceae (≥ 45%) and Ephedra (≥ 10%) are the most important taxa in desert, and Cyperaceae (≥ 35%) and Thalictrum (≥ 2%) are the dominant pollen types in steppe/meadow. Forest and river valley samples are characterized by high frequencies of Picea (≥ 10%) and Cyperaceae (≥ 20%). Both constrained and partial canonical ordination techniques (RDA and partial RDA) of the main pollen types and environmental variables show that the modern pollen spectra are primarily controlled by mean annual precipitation (MAP). Cyperaceae, Thalictrum and Brassicaceae are positively correlated with MAP and negatively correlated with mean July temperature (T July ), while the representation of certain other types, such as Amaranthaceae, Ephedra and Nitraria , is negatively correlated with MAP and positively correlated with T July . The Human Influence Index (HII) is significantly correlated with cereal-type pollen, and it can also differentiate human-influenced and natural vegetation. Our results provide a basis for improving the interpretation of fossil pollen records from arid northwestern China and similar regions.

Description: With regard to Near Eastern archaeobotanical investigations, Lebanon is still underrepresented. Archaeobotanical data have been obtained from only a few excavation sites, mostly from the Phoenician settlement of Tell el-Burak. The site is situated on the southern coastal plain of Sidon, between Sidon and Tyre. Continuous sampling throughout six seasons of excavations have enabled the detailed investigation of the archaeobotanical material from the site. Due to the fine stratigraphic resolution there, it is possible to examine the development of agricultural resources through the 400 years of Phoenician occupation. Additionally, systematic sampling has allowed investigation of the spatial distribution of botanical remains within certain building structures. The combination of the archaeological results with the data from the charcoal and seeds reinforces the assumption that Tell el-Burak was established by the city of Sidon or the nearby city of Sarepta as a production and trade centre for wine and possibly olive oil. The agricultural resources of grapes and olives were most probably cultivated in the immediate vicinity of the settlement and probably along the western slopes of the hill country further inland.

Description: The initial relationships between the first human colonizers and the native vegetation of Isla San Cristóbal, Galápagos, were studied by the analyses of wood charcoal, plant macro-remains, phytoliths and historical records. Archaeological and modern botanical samples were collected from four archaeological sites within the former farmland of the 19th century Hacienda El Progreso, a sugar plantation located in the moist highlands of the island. The archaeobotanical remains show the use of native timber, the introduction of crops and weeds, some aspects of local diet, and evidence of vegetation clearance. Ecological impact is shown by the changes to the native vegetation caused by human colonization of the island and the expansion of agricultural land for the plantation enterprise. This paper provides a synthesis of the archaeobotanical study at El Progreso which forms a baseline for future research in the Galápagos islands.

Description: Modern soil phytoliths can potentially provide analogues for phytolith assemblages from archaeological and palaeoecological contexts. To assess the reliability of soil phytoliths for representing different plant communities, we analysed phytoliths in surface soils and parent plants at 65 sites representing five types of regional vegetation in Northeast China. The results demonstrated that surface soil phytolith assemblages could clearly differentiate samples from herbaceous and woody communities, and samples from Poaceae and non-Poaceae communities could be separated statistically. In addition, woody communities could be differentiated into a broadleaf-Poaceae community, a broadleaf-non-Poaceae community and a conifer and broadleaf-non-Poaceae community, except for some overlapping samples. Soil phytolith assemblages are thus able to differentiate regional vegetation types into different plant community types. In the present study, soil phytoliths represented about 30% of the phytoliths present in the aboveground vegetation. In addition, soil phytoliths from different communities reflected the aboveground vegetation with slightly different degrees of accuracy, and in addition different morphotypes exhibited different degrees of representational bias. Some morphotypes (e.g. rondel, elongate psilate, lanceolate) overrepresented the abundance of the associated plant taxa; morphotypes such as tracheid, conical epidermal, stomata and others under-represented the original plant richness; and other morphotypes, e.g. saddle, trapeziform sinuate, scutiform, were in good agreement with the numbers of plant taxa in the plot inventory. Thus, any quantitative palaeovegetation reconstruction using phytoliths should begin with the calibration of soil phytolith assemblages. We conclude that our findings provide improved phytolith analogues for different plant communities, with applications in palaeoenvironmental reconstruction, and they also provide additional insights into the mechanisms of phytolith production and deposition.

Description: In the late spring of the year ad 1295 a landslide devastated the village of Onoldswil in the Swiss Jura mountains. During recent construction work, a small area of the original land surface was unearthed. The 5 m of compacted clay deposited by the landslide had caused the complete exclusion of oxygen and underneath it the excavators came upon mosses, blades of grasses and other plants that were still green. Below the vegetation cover the humus horizon with subterranean plant parts appeared. Samples were taken for plant macro- and microfossil and geoarchaeological analyses. This offered the rare opportunity to study the vegetation and the topsoil of a small area of land preserved in situ as an autochthonous palaeobiocoenosis, the preserved original combination of the plant community which grew there. Grassland taxa dominated the pollen and macrofossil spectra. Compacted zones within the humus horizon, the plant taxa composition and the presence of spores of coprophilous fungi showed that this place had once been a nutrient-rich pasture. Grazing animals had favoured the spread of juniper. Manuring seems to have taken place. The slopes of the surrounding mountains had been largely cleared of woodland, which may have been the cause of the landslide. The disaster probably happened in late spring, because entire fruiting capitula of Taraxacum officinale (dandelion) were found. Landslides are catastrophic events, destroying the soils and everything that lives in and on them on their way downhill. In places, however, they can also blanket the original land surface and its vegetation and create an archive of ancient life.

Description: Until recently the plant economy of the Northern European Bronze Age was only investigated locally or within modern boundaries. New results from the project “Settlements of the Bronze Age” by the Academy of Science and Literature Mainz allow us to now fill part of the remaining gaps in research. Summarizing all available data concerning the plant economy of the Northern European Bronze Age has shown that it constitutes a time of innovation and continuous change. In addition to the omnipresent Triticum dicoccum (emmer) and Hordeum vulgare (barley), this period is marked by the emergence of various new cultivars like T. spelta (spelt) or Camelina sativa (gold-of-pleasure). A comparison between the cereal spectra from several regions in Northern Germany and Scandinavia revealed differences and similarities which allowed for the reconstruction of multiple possible contact zones and various influences from adjacent cultures. Northern Germany and especially Schleswig–Holstein served as an important link for trading over land and by water between the southern areas and Scandinavia. The rising diversity of crop plants in the Late Bronze Age, which is for the first time comparable to the southern regions, reflects the increased trade and therefore stronger influence from beyond the Northern European Bronze Age, which resulted in an accelerated assimilation of innovations and new technologies.