• Publications
  • Influence
Global climate and the distribution of plant biomes.
TLDR
This approach describes a wide range of biomes that can be correlated with characteristic climatic conditions, or climatic envelopes, and indicates that broadleaf drought deciduous vegetation grades substantially into broadleaf evergreen vegetation.
Pathogen mortality of tropical tree seedlings: experimental studies of the effects of dispersal distance, seedling density, and light conditions
TLDR
The field experiment on Barro Colorado Island, Panama, demonstrated that both an increase in dispersal distance and a decrease in seedling density reduce levels of damping-off disease among seedlings of Platypodium elegans, and that there is an interaction between the two factors.
The influence of CO2 concentration on stomatal density
TLDR
A survey of 100 species and 122 observations has shown an average reduction in stomatal density of 14.3% (SE ±2.2 %) with CO2 enrichment, with 74% of the cases exhibiting a reduction in Stomataldensity, and repeated observations indicated a significant repeatability in the direction of theStomatal response.
On the Adaptive Value of Physiological Integraton in Colonal Plants
TLDR
A stochastic dynamic programming model demonstrates how translocation can depend on time and the sizes of the mother and daughter ramets, as well as on spatiotemporal resource variability.
Plant Foraging: A Marginal Value Model and Coiling Response in Cuscuta Subinclusa
TLDR
Stems of the parasitic plant Cuscuta subinclusa (Convolvulaceae) discriminate among host species and invest in resource acquisition relative to host quality in a way predicted by a marginal value model of resource use.
Resource choice in Cuscuta europaea.
  • C. Kelly
  • Biology, Medicine
    Proceedings of the National Academy of Sciences…
  • 15 December 1992
TLDR
Dodder exhibits this acceptance/rejection response before taking up any food from the host, so it is possible to dissociate active choice from the passive effects of growth and mortality.
Ecological correlates of plant range size: taxonomies and phylogenies in the study of plant commonness and rarity in Great Britain
TLDR
Examination of commonness and rarity as it is measured by plant range size of species drawn from the floras of the islands of Great Britain and Crete suggests that analyses using a taxonomy can lead to conclusions reliable across classification schemes.
Temperature-based population segregation in birch
TLDR
The existence of 'pre-adapted' individuals in standing tree populations would reduce temperature-based advantages for invading species and, if general, bring into question assumptions currently used in models of global climate change.
IDENTIFICATION OF SPECIFIC TREE SPECIES IN ANCIENT SEMI-NATURAL WOODLAND FROM DIGITAL AERIAL SENSOR IMAGERY
TLDR
The results show that the classification approach can be adapted to focus on a specific species of interest and used to increase classification accuracy significantly, and the ability to map specific class(es) of interest accurately from remotely sensed imagery is demonstrated.
Stomatal density responses of temperate woodland plants over the past seven decades of CO2 increase: a comparison of Salisbury (1927) with contemporary data.
TLDR
Investigation of the possible effect of recent increases in the concentration of atmospheric CO2 on the stomatal densities of leaves of a wide range of tree, shrub, and herb species revealed a significant (P 2 increases have influenced leaf morphology in a manner consistent with recent experiments and the palaeoecological record) and firmer predictions for future changes inStomatal density across all species may now be possible.
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