Mean seed dry mass values and nutrient contents were determined for 27 species of trees and shrubs in Amazonian caatinga (a forest-type especially short of nitrogen) and for 11 species in adjacent much taller forest on less poor soil and subsequently compared. Grubb, P.J.; Coomes, D.A. 1997 PDF
Project Tag: Pre-2000
Requirements of Gap-Demanding Species in Chalk Grassland: Reduction of Root Competition Versus Nutrient-Enrichment by Animals
An investigation into whether non-mycorrhizal species of chalk grassland gaps are limited by root competition or by additional soil factors such as nutrient enrichment by animal faeces. Bonis, A.; Grubb, P.J.; Coomes, D.A. 1997 PDF
Nutrient status of Amazonian caatinga forests in a seasonally dry area: nutrient fluxes in litter fall and analyses of soils
Investigating changes in nutrient fluxes in forests of varied composition down a gradient of waterlogged soils characteristic of Amazonian caatinga. Coomes, D.A. 1997 PDF
Consistencies in post-dispersal seed predation of temperate fleshy-fruited species among seasons, years and sites
Seed predation of 12 fleshy-fruited species was recorded in experimental dishes under early successional forest in south-west Germany (four seasons 1992 and 1993) and in south England (summer 1995). The mean time for three or more seeds of a species to be removed was taken as a measure of granivore preferences. Correlations of these preferences … Continue reading Consistencies in post-dispersal seed predation of temperate fleshy-fruited species among seasons, years and sites
IDENTIFYING AGGREGATION AND ASSOCIATION IN FULLY MAPPED SPATIAL DATA
Describes a clump recognition process that may be used to analyze fully mapped spatial data. Any given spatial pattern can be made less aggregated by replacing the closest-together pair of plants by a single individual at their centroid position. By repeatedly amalgamating pairs of individuals in this way, an initially aggregated pattern can be reduced … Continue reading IDENTIFYING AGGREGATION AND ASSOCIATION IN FULLY MAPPED SPATIAL DATA
A comparison of 12 tree species of Amazonian caatinga using growth rates in gaps and understorey, and allometric relationships
The relative growth rate of saplings of 12 species from an oligotrophic lowland rainforest were measured in treefall gaps and understorey. Allometric relationships between the total leaf area (TLA) and height were dependent upon light conditions. Coomes, D.A.; Grubb, P.J. 1998 PDF
RESPONSES OF JUVENILE TREES TO ABOVE- AND BELOW-GROUND COMPETITION IN NUTRIENT-STARVED AMAZONIAN RAIN FOREST
The impact of trenching on above and below ground competition among tropical rain forest species seedlings and how it influences their growth. Coomes, D.A.; Grubb, P.J. 1998 PDF
An Assessment of the Quality of Data Stored in the National Vegetation Survey Database, With Recommendations for Minimising Errors
An assessment of the extent of errors in NVS data sets, based on automated checks. Wiser,S.K.; Bellingham, P.J.; Coomes, D.A.; Burrows, L.E.; Gordon, R.F.S. 1999 PDF
Amazonian caatinga and related communities at La Esmeralda, Venezuela: forest structure, physiognomy and floristics, and control by soil factors
Tall and short Amazonian caatinga at La Esmeralda are described and compared with those at San Carlos de Rio Negro. Coomes, D. A.; Grubb, P. J. 1996 PDF
