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The hypothesis of a positive correlation between host specificity and taxonomic diversification was tested in a family of fish ectoparasites, the Diplectanidae Bychowsky 1957 (Monogenea). A comparative analysis of correlation of species richness with host specificity was performed using an adapted independent contrasts method. In order to control for(More)
The South American Leaf Blight (SALB), caused by the fungus Microcyclus ulei, is the major rubber tree disease in all Central and South America. A population of 192 progeny individuals derived from a cross between a resistant clone and a susceptible cultivated clone was planted in a field trial in French Guiana in order to evaluate the resistance parameters(More)
This study aims to (i) determine the effects of incorporating 47 Mg ha−1 acacia green waste biochar on soil physical properties and water relations, and (ii) to explore the different mechanisms by which biochar influences soil porosity. The pore size distribution of the biochar was determined by scanning electron microscope and mercury porosimetry. Soil(More)
A detailed knowledge of Himalayan development is important for our wider understanding of several global processes, ranging from models of plateau uplift to changes in oceanic chemistry and climate. Continental sediments 55 Myr old found in a foreland basin in Pakistan are, by more than 20 Myr, the oldest deposits thought to have been eroded from the(More)
Nutrient leaching from agricultural soils is a worldwide problem that has been implicated in deleterious impacts on the environment. Application of biochar to soil has been proposed as a means to reduce nutrient leaching and improve fertilizer use efficiency. The potential for biochar to reduce nutrient leaching and increase fertilizer use efficiency was(More)
Potential benefits of biochar and compost soil amendments may not be realised in high-input perennial horticultural systems such as an apple orchard. Mechanistic understanding of how biochar affects tree physiology is deficient. We determined the effects of biochar amendment on crop yields, growth and tree physiology of a high-input perennial horticultural(More)
  • G Oliver
  • 1984
The author propose Cycloplectanum beverleyburtonae n. sp. to name the gill parasite discovered on Epinephelus guaza (Linnaeus, 1758) ( Serranidae ) in the Mediterranean Sea (Gulf of Lion) reported to Diplectanum americanum Price, 1937 and Cycloplectanum caballeroi n. sp. to name the gill parasite discovered on Stereolepis gigas Ayres , 1809 ( Percichthyidae(More)