The volume identifies how stressful conditions affect plants. Various stresses, such as drought, salinity, waterlogging, high and low temperatures, can have a major impact on plant growth and survival - with important economic consequences in crop plants. This book examines some of the more important stresses, shows how they affect the plant and then reviews how new varieties or new species can be selected which are less vulnerable to stress. The wide-ranging and important consequences of stress should ensure that the volume is widely read by plant biologists at the graduate and research level.

The 34th European Marine Biology Symposium was held in Ponta Delgada, The Azores, between 13th and 17th September 1999. It was organised by the University of the Azores in association with the Municipal Museum of Funchal (Madeira), and the Plymouth Environment Research Centre (University of Plymouth, UK). The selected topics, dictated by the position of the Azores in the Atlantic Ocean, were: `Ecology and Evolution on Island Shores', `The Open Ocean', and `The Deep Ocean'. Each topic was introduced by a recognised expert of international reputation and these keynote reviews provide authoritative summaries of the current status of these very important topics in marine biology. The 35 papers which make up this volume bring new ideas and concepts relating to the functioning of marine systems extending from the intertidal, through the pelagic realm down to the deep sea. The book covers many aspects of the biology of marine organisms and will have wide interest to all those interested in the life of the world's oceans.

This book represents the Proceedings of the 37th European Marine Biology Symposium, held in Reykjavik, Iceland, 5-9 August 2002. The main themes of the symposium were Migrations and Dispersal of Marine Organisms. These themes are highly relevant today. There is widespread man-aided dispersal (e.g. by ballast water) of marine plants and animals, which may have substantial effects on the regions receiving new species. The new introductions may result in reduced diversity of plants and animals and may affect natural resources in the countries receiving toxic algae and other foreign elements. Studies of changes in distribution and dispersal of marine animals and plants are also highly relevant with reference to the changing climate taking place. The study of dispersal has recently gained new impetus with the discovery of the remarkable communities found on isolated hydrothermal vents and cold water seeps in the world's oceans.
This book should appeal to a broad group of biologists, and especially marine ecologists. Four papers are based on keynote addresses, given by world authorities in their respective fields, on the state of the art of different important aspects of dispersal and migrations. These are followed by papers covering a wide field, from the rafting of macrobenthic animals on human debris, the spread of the Chinese mitten crap in Europe, the migrations of diatoms, and the seasonal movements of copepods, to mention but a few."

The volume identifies how stressful conditions affect plants. Various stresses, such as drought, salinity, waterlogging, high and low temperatures, can have a major impact on plant growth and survival - with important economic consequences in crop plants. This book examines some of the more important stresses, shows how they affect the plant and then reviews how new varieties or new species can be selected which are less vulnerable to stress. The wide-ranging and important consequences of stress should ensure that the volume is widely read by plant biologists at the graduate and research level.

The United Nations Environment Programme (UNEP) has sponsored a programme of intensive research into the primary productivity of grass ecosystems in both the tropics and subtropics, resulting in this book. It therefore represents the first internationally integrated study of bio-productivity since the International Biological Programme (IBP) of the early 1970s. The large international team of scientists sponsored by UNEP identified five different grassland ecosystems, determining their levels of productivity as well as the effect of climatic variation on primary production and photosynthesis. The methods and results described indicate a three to ten-fold increase in estimates of productivity from the IBP figures, raising implications for a number of important questions such as: the understanding of how carbon is cycled, the environmental impact of removing grasslands, assessment of these ecosystems as genetic resources of productive grasses, assessing the impact of rising carbon dioxide levels in the atmosphere, and establishing ground truth data for remote sensing of grassland productivity. This book provides a comprehensive assessment of an extremely important but under-researched biome. It should be of interest to a wide range of environmental scientists, including ecologists, atmospheric scientists, biogeographers, and environmental physiologists.

My little grand-daughter gave me the impetus to write my first book, "Manners Are Free." I feel strongly that manners are very important throughout life, and they seem to have fallen by the wayside. It's never too early to teach children manners, and what better way than to read them a book that is fun and also begins the process of teaching them basic manners.

This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.