Neolithic and Bronze Age archaeology; archaeobotany; early farming practice and land use in Europe and western Asia; present-day traditional farming practice; stable isotopes and palaeodietary studies; social inequality.
Exploring the Dynamics and Causes of Prehistoric Land Use Change in the Cradle of European Farming (EXPLO) project (European Research Council SYNERGY project; Oxford PI Bogaard). Project website available here and School webpage here.
Feeding Anglo-Saxon England (FEEDSAX) project (European Research Council, PI Hamerow)
The Agricultural Origins of Urban Civilization (AGRICURB) project (European Research Council, PI Bogaard)
Seed size, number and strategies in annual plants: a comparative functional analysis and synthesis.
Hodgson, JG, Montserrat Marti, G, Šerá, B, Jones, G, Bogaard, A, Charles, M, Font, X, Ater, M, Taleb, A, Santini, BA, Hmimsa, Y, Palmer, C
Annals of botany
<h4>Background and aims</h4>Plants depend fundamentally on establishment from seed. However, protocols in trait-based ecology currently estimate seed size but not seed number. This can be rectified. For annuals, seed number should simply be a positive function of vegetative biomass and a negative function of seed size.<h4>Methods</h4>Using published values of comparative seed number as the 'gold standard' and a large functional database, comparative seed yield and number per plant and per m2 were predicted by multiple regression. Subsequently, ecological variation in each was explored for English and Spanish habitats, newly calculated C-S-R strategies and changed abundance in the British flora.<h4>Key results</h4>As predicted, comparative seed mass yield per plant was consistently a positive function of plant size and competitive ability, and largely independent of seed size. Regressions estimating comparative seed number included, additionally, seed size as a negative function. Relationships differed numerically between regions, habitats and C-S-R strategies. Moreover, some species differed in life history over their geographical range. Comparative seed yield per m2 was positively correlated with FAO crop yield, and increasing British annuals produced numerous seeds. Nevertheless, predicted values must be viewed as comparative rather than absolute: they varied according to the 'gold standard' predictor used. Moreover, regressions estimating comparative seed yield per m2 achieved low precision.<h4>Conclusions</h4>For the first time, estimates of comparative seed yield and number for >800 annuals and their predictor equations have been produced and the ecological importance of these regenerative traits has been illustrated. 'Regenerative trait-based ecology' remains in its infancy, with work needed on determinate vs. indeterminate flowering ('bet-hedging'), C-S-R methodologies, phylogeny, comparative seed yield per m2 and changing life history. Nevertheless, this has been a positive start and readers are invited to use estimates for >800 annuals, in the Supplementary data, to help advance 'regenerative trait-based ecology' to the next level.
Plants, Seeds, Ecosystem, Phylogeny, Phenotype
The agroecology of an early state: New results from Hattusha
BOGAARD, A, Diffey, C, Neef, R, Seeher, J
Antiquity: a quarterly review of archaeology
Further insight into Neolithic agricultural management at Kouphovouno, southern Greece: expanding the isotopic approach
BOGAARD, AMY, Vaiglova, P, LEE-THORP, J, Gardeisen, A, Buckley, M, Cavanagh, W, Renard, J
Archaeological and Anthropological Sciences
A snapshot of subsistence in Iron Age Iberia: The case of La Hoya village
Fernández-Crespo, T, Ordoño, J, Bogaard, A, Llanos, A, Schulting, R