This advanced textbook is the first to explore the consequences of plant dispersal for population and community dynamics, spatial patterns, and evolution. It successfully integrates a rapidly expanding body of theoretical and empirical research. · The first comprehensive treatment of plant dispersal set within a population framework · Examines both the processes and consequence of dispersal · Spans the entire range of research, from natural history and collection of empirical data to modeling and evolutionary theory · Provides a clear and simple explanation of mathematical concepts
Ecology is one of the most challenging of sciences, with unambiguous knowledge much harder to achieve than it might seem. But it is also one of the most important sciences for the future health of our planet. It is vital that our efforts are as effective as possible at achieving our desired outcomes. This book is intended to help individual ecologists to develop a better vision for their ecology – and the way they can best contribute to science. The central premise is that to advance ecology effectively as a discipline, ecologists need to be able to establish conclusive answers to key questions rather than merely proposing plausible explanations for mundane observations. Ecologists need clear and honest understanding of how we have come to do things the way we do them now, the limitations of our approaches, our goals for the future and how we may need to change our approaches if we are to maintain or enhance our relevance and credibility. Readers are taken through examples to show what a critical appraisal can reveal and how this approach can benefit ecology if it is applied more routinely. Ecological systems are notable for their complexity and their variability. Ecology is, as indicated by the title of this book, a truly difficult science. Ecologists have achieved a great deal, but they can do better. This book aims to encourage early-career researchers to be realistic about their expectations: to question everything, not to take everything for granted, and to make up their own minds.
This book investigates stalled and dysfunctional peace processes and peace accords in societies experiencing civil wars. Using a critical and comparative perspective, it offers strategies for rejuvenating and re-orientating stalled peace processes and peace accords so that they are more able to foster sustainable and inclusive peace
Conflicts involve powerful experiences. The residue of these experiences is captured by the concept and language of emotion. Indiscriminate killing creates fear; targeted violence produces anger and a desire for vengeance; political status reversals spawn resentment; cultural prejudices sustain ethnic contempt. These emotions can become resources for political entrepreneurs. A broad range of Western interventions are based on a view of human nature as narrowly rational. Correspondingly, intervention policy generally aims to alter material incentives ('sticks and carrots') to influence behavior. In response, poorer and weaker actors who wish to block or change this Western implemented 'game' use emotions as resources. This book examines the strategic use of emotion in the conflicts and interventions occurring in the Western Balkans over a twenty-year period. The book concentrates on the conflicts among Albanian and Slavic populations (Kosovo, Montenegro, Macedonia, South Serbia), along with some comparisons to Bosnia.
The aim of the present volume is to review the effects of human activity on physical environment processes, and this is justified not only as a complement to the approach taken by G. P. Marsh his volume Man and Nature (1864), but also as a sequel to the work produced since 1864, with contributions since the mid-nineteenth century to the study of th
The everyday, circuitry, and scalability -- Sociality, reciprocity and reciprocity -- Power -- Parley, truce and ceasefire -- Everyday peace on the battlefield -- Gender and everyday peace -- Conflict disruption.
This work offers answers to some of the questions in moral philosophy, including: What reasons do we have for acting in one way or another? Are there moral reasons? What are reasons anyway? How can we know about them? What makes for a good human life? How should we weigh the well-being of others against our own?
Volume 2, dedicated to Barry Hawthorne, presents papers concerned with the genesis of eclogites, the mineralogy of diamond and its inclusions, exploration methods for kimberlite, the geochemistry of the upper mantle and the character of cratons.
The Companion on Humanitarian Action addresses the political, ethical, legal and practical issues which influence reactions to humanitarian crisis. It does so by exploring the daily dilemmas faced by a range of actors, including policy makers, aid workers, the private sector and the beneficiaries of aid and by challenging common perceptions regarding humanitarian crisis and the policies put in place to address these. Through such explorations, it provides practitioners and scholars with the knowledge needed to both understand and improve upon current forms of humanitarian action. The Companion will be of use to those interested a range of humanitarian programmes ranging from emergency medical assistance, military interventions, managing refugee flows and the implementation of international humanitarian law. As opposed to addressing specific programmes, it will explore five themes seen as relevant to understanding and engaging in all modes of humanitarian action. The first section explores varying interpretations of humanitarianism, including critical historical and political-economic explanations as well as more practice based explorations focused on notions needs assessments and evaluation. Following this, readers will be exposed to the latest debates on a range of humanitarian principles including neutrality and sovereignty, before exploring the key issues faced by the main actors involved in humanitarian crisis (from international NGOs to local community based organizations). The final two sections address what are seen as key dilemmas in regards to humanitarian action and emerging trends in the humanitarian system, including the increasing role of social media in responding to crises. Whilst not a ‘how to guide’, the Companion contains many practical insights for policy makers and aid workers, whilst also offering analytical insights for students of humanitarian action. Indeed, throughout the book, readers will come to the realization that understanding and improving humanitarian action simultaneously requires both active critical reflection and an acceptance of the urgency and timeliness of action that is required for humanitarian assistance to have an impact on vital human needs. Exploring a sector that is far from homogenous, both practitioners and scholars alike will find the contributions of this book offers them a deeper understanding of the motivations and mechanics of current interventions, but also insight into current changes and progress occurring in the field of humanitarian practice.
In this book, the first dedicated entirely to the petrology of lamproites and their relationships to other potassium-rich rocks, the objective of the authors is to provide a comprehensive critical review of the occurrence, mineralogy, geochemistry, and petrogenesis of the clan. Although lamproites represent one of the rarest of all rock types, they are both economically and scientifically important and we believe the time is ripe for a review of the advances made in their petrology over the past two decades. Many of these advances stem from the recognition of diamond-bearing lamproites in Western Australia and the reclassification of several anomalous diamond-bearing kim berlites as lamproites. Consequently lamproites, previously of interest only to a small number of mineralogists specializing in exotica outside the mainstream of igneous petrol ogy, have become prime targets for diamond exploration on a worldwide basis. Contemporaneously with these developments, petrologists realized that lamproites possess isotopic signatures complementary to those of midoceanic ridge basalts, alkali basalts, kimberlites, and other mantle-derived melts. These isotopic studies provided new insights into the long-term development of the mantle by suggesting that the source regions of lamproites were metasomatically enriched in light rare earth and other incompatible elements up to 1-2 Ga prior to the melting events leading to generation of the magma.
Using the case studies of Afghanistan, Iraq, Bosnia, Lebanon and Northern Ireland this book dissects internationally-supported peace interventions. Looking at issues of security, statebuilding, civil society and economic and constitutional reform, it proposes using the concept of hybridity to understand the dynamics of societies in transition.
Weeds have ecological attributes that confer the ability to interfere with human activities. Roger Cousens and Martin Mortimer place weed management within an ecological context, with the focus on the manipulation of population size. They consider the dynamics of abundance and spatial distribution at both geographic and local scales, and consider the basic processes of dispersal, reproduction and mortality together with the factors that influence them. The authors show how management modifies patterns of behavior that are intrinsic to populations, and note the evolution and management of resistance to herbicides. This book provides weed science with the conceptual basis that has previously been lacking. It also gives ecologists and botanists access to the extensive database on the population ecology of weeds.
Ecology is one of the most challenging of sciences, with unambiguous knowledge much harder to achieve than it might seem. But it is also one of the most important sciences for the future health of our planet. It is vital that our efforts are as effective as possible at achieving our desired outcomes. This book is intended to help individual ecologists to develop a better vision for their ecology – and the way they can best contribute to science. The central premise is that to advance ecology effectively as a discipline, ecologists need to be able to establish conclusive answers to key questions rather than merely proposing plausible explanations for mundane observations. Ecologists need clear and honest understanding of how we have come to do things the way we do them now, the limitations of our approaches, our goals for the future and how we may need to change our approaches if we are to maintain or enhance our relevance and credibility. Readers are taken through examples to show what a critical appraisal can reveal and how this approach can benefit ecology if it is applied more routinely. Ecological systems are notable for their complexity and their variability. Ecology is, as indicated by the title of this book, a truly difficult science. Ecologists have achieved a great deal, but they can do better. This book aims to encourage early-career researchers to be realistic about their expectations: to question everything, not to take everything for granted, and to make up their own minds.
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