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2 produkter
2 produkter
Inbunden, Engelska, 2007
2 155 kr
Skickas inom 10-15 vardagar
Nectar is the most important reward offered by plants to pollinating animals. This book is a modern and interdisciplinary text on nectar and nectaries, prompted by the expansion of knowledge, especially in the more ecological and now molecular fields, and the strong recent interest in pollination biology. The topics covered vary widely: they include historical aspects, the structure and ultrastructure of nectaries and relationships to plant systematics, the dynamics of nectar secretion, nectar chemistry and the molecular biology of defence proteins, adaptations to insect and vertebrate nectar consumers and consequences for pollination ecology, and broad-scale studies of nectar resources at the community level.
Häftad, Engelska, 2006
282 kr
Skickas inom 5-8 vardagar
This collection examines the case for affirmative action in the UK in relation to employment, higher education, the legal profession, the judiciary, political representation and minority language rights. Draws on experience of affirmative action in the United States, Canada and Germany. Contributions highlight the importance of how affirmative action is conceptualised and of context in evaluating the case for affirmative action. Emphasises the need for pragmatic judgments about the likely effectiveness and costs of affirmative action policies.