Harde band, meer as 400 volkleurfoto's

Ook beskikbaar in Engels - Guide to the Aloes of South Africa

Gids tot die Aalwyne van Suid-Afrika is die eerste volledige en moderne aalwyngids in Afrikaans. Dit is 'n volkleur-handleiding en die hoë gehalte foto's maak dit vir die algemene belangstellende sowel as die wetenskaplike maklik om aalwyne in die natuur en in tuine te identifiseer. Die inhoud weerspieël die nuutste wetenskaplike bevindings en bevat:
Volledige beskrywings van al 155 spesies wat tans deur aalwynkenners erken word, met inligting oor kenmerke waarvolgens die plante geïdentifiseer kan word, blomtyd, habitat en geografiese verspreiding, bewaringstatus, oorsprong van die wetenskaplike name, en volksname, asook algemene riglyne vir die kweek van die plante, en inligting oor hul tradisionele gebruike.
Meer as 400 kleurfoto's wat die habitat en groeivorm aantoon, sowel as nabyfoto's van die blomme en blare.
Verspreidingskaarte van al die spesies, as 'n verdere hulpmiddel vir identifisering.
'n Gebruikersvriendelike klassifikasiestelsel wat die aalwyne in 12 groepe verdeel, hoofsaaklik aan die hand van hul groeivorms.
Inleidende hoofstukke wat die fokus plaas op aalwynagtige plante (wat met aalwyne verwar kan word); medisinale, kosmetiese en tonikumgebruike; bewaring; kweking en vermeerdering; tuinmaak en landskapontwerp met aalwyne; hibriede en kultivars, plae en siektes; en verwantskappe en genuskonsepte.
'n Geïllustreerde woordelys van plantkundige terme, indeks tot die wetenskaplike en volksname, asook 'n literatuurlys vir verdere leeswerk.

Die outeurs: Ben-Erik van Wyk is 'n professor in Plantkunde aan die Universiteit van Johannesburg en het 'n navorsingsbelangstelling in plantsistematiek en plantbenutting. Hy is die skrywer van internasionale wetenskaplike topverkopers soos Medicinal Plants of the World en Food Plants of the World.
Gideon F. Smith is Hoofdirekteur van Biosistematiek en Versamelings by die Suid- Afrikaanse Nasionale Biodiversiteitsinstituut, professor in Plantwetenskap aan die Universiteit van Pretoria, en 'n navorsingsgenoot aan die Universiteit van Coimbra in Portugal. Hy is die skrywer of medeskrywer van meer as 40 boeke oor onder meer aalwyne, sukkulente, tuinbou, tuine, Angola, taksonomie en indringerplante.

A book of evocative and atmospheric photographs taken by Dick Hawkes to create a representative record of this precious and ecologically unique habitat - before much of it is lost to the many threats it faces. Chalk streams have been described as England's "rainforest". Around 85% of the world's chalk streams are in England. They are beautiful, biologically distinct and amazingly rich in wildlife, but are under threat from man-made issues of abstraction, pollution from chemicals and effluent, development for housing, and climate change. Included in the book are images of typical habitats and species of wildlife found in chalk streams and water meadows, highlighting those that are rare or most under threat.

Peter Jewell and Juliet Clutton-Brock had a shared passion for animals and Africa, and as brilliant young zoologists in the 1960s they were pioneers of the new movements in ecology, archaeozoology and animal conservation. This fascinating account of their extraordinary lives follows them as they travel, and live, in and out of Africa accompanied by their three daughters and a medley of pets, including dogs, cats, tortoises, chameleons and a chimpanzee.

Elgar Advanced Introductions are stimulating and thoughtful introductions to major fields in the social sciences, business and law, expertly written by the world's leading scholars. Designed to be accessible yet rigorous, they offer concise and lucid surveys of the substantive and policy issues associated with discrete subject areas. Professor Fikret Berkes provides a unique introduction to the social and interdisciplinary dimensions of biodiversity conservation. Examining a range of approaches, new ideas, controversies and debates, he demonstrates that biodiversity loss is not primarily a technical issue, but a social problem that operates in an economic, political and cultural context. Berkes concludes that conservation must be democratized in order to broaden its support base and build more inclusive constituencies for conservation. Key features include: focus on Indigenous peoples' rights, knowledge and practices discussion of commons governance, co-management and responsibility exploration of the history of conservation and the nature stewardship traditions a broad view of conservation that encompasses the well-being of humans as well as ecosystems Taking an interdisciplinary social science approach that includes conservation science concepts, this Advanced Introduction will benefit students of environmental studies, geography, ecology and conservation. It will also be a useful resource for conservation organizations.

’I can’t recall us ever talking about anything other than eels and how to best catch them, down there by the stream. Actually, I can’t remember us speaking at all. Maybe because we never did.’

The European eel, Anguilla anguilla, is one of the strangest creatures nature ever created. Remarkably little is known about the eel, even today. What we do know is that it’s born as a tiny willow-leaf shaped larva in the Sargasso Sea, travels on the ocean currents toward the coasts of Europe – a journey of about four thousand miles that takes at least two years. Upon arrival, it transforms itself into a glass eel and then into a yellow eel before it wanders up into fresh water. It lives a solitary life, hiding from both light and science, for ten, twenty, fifty years, before migrating back to the sea in the autumn, morphing into a silver eel and swimming all the way back to the Sargasso Sea, where it breeds and dies.

And yet . . . There is still so much we don’t know about eels. No human has ever seen eels reproduce; no one can give a complete account of the eel’s metamorphoses or say why they are born and die in the Sargasso Sea; no human has even seen a mature eel in the Sargasso Sea. Ever. And now the eel is disappearing, and we don’t know exactly why.

What we do know is that eels and their mysterious lives captivate us.

This is the basis for The Gospel of the Eels, Patrik Svensson’s quite unique natural science memoir; his ongoing fascination with this secretive fish, but also the equally perplexing and often murky relationship he shared with his father, whose only passion in life was fishing for this obscure creature.

Through the exploration of eels in literature (Günter Grass and Graham Swift feature, amongst others) and the history of science (we learn about Aristotle’s and Sigmund Freud’s complicated relationships with eels) as well as modern marine biology (Rachel Carson and others) we get to know this peculiar animal. In this exploration, we also learn about the human condition, life and death, through natural science and nature writing at its very best.

World Oceans: A Reference Handbook offers an in-depth discussion of the world's oceans. It discusses the marine life that is dependent on the sea as well as the problems threatening the health of the ocean and its wildlife. World Oceans: A Reference Handbook opens with an overview of the history of human knowledge and understanding of the oceans and cryosphere, along with related scientific, technological, social, political, and other factors. The second chapter presents and discusses about a dozen major problems facing the Earth's oceans today, along with possible solutions. The third chapter provides interested individuals with an opportunity to express their thoughts and ideas on today's ocean issues, and remaining chapters provide additional resources, such as a bibliography, a chronology, and a glossary, to assist the reader in her or his further study of the issue. Where most books for young adults learning about world oceans take a purely expository treatment, this book provides readers with additional information as well as resources, allowing them to learn more and inform further study of the subject. Provides readers with the basic background they need about the oceans and cryosphere in order to understand current problems Includes additional readings, a comprehensive chronology, a glossary, and other additional features to aid students' understanding of current issues and to guide them in designing and conducting their own research on more detailed aspects of the topic Offers ideas for additional research from a list of important individuals and organizations Rounds out the author's expertise in perspectives essays that show readers a diversity of viewpoints

The enchanting second novel from the author of The Last Bear: the bestselling debut hardback of 2021 and The Times Children’s Book of the Week, winner of the Waterstones Children’s Book Prize and the Blue Peter Book Award ‘An irresistible ocean-loving yarn’ The Times Winner of the Edward Stanford Children’s Travel Book of the Year 2023 THEIR BOND COULD SET THEM FREE . . . Rio has been sent to live with a grandmother he barely knows in California, while his mum is in hospital. All Rio wants is for Mum to get better so he can return home. But everything changes when he joins a whale-watching trip and meets White Beak, a gentle giant of the sea. Rio forms an instant bond with the whale, and for the first time in ages he feels a spark of hope. Then White Beak goes missing and Rio may be the only person who can help. Can Rio draw on their special connection to somehow find and save his whale . . . ? Perfect for readers of 8+, beautifully illustrated throughout by Levi Pinfold

In explaining how developments in the Kruger National Park have been integral to the wider political and socio-economic concerns of South Africa, this text opens an alternative perspective on its history. Nature protection has evolved in response to a variety of stimuli including white self-interest, Afrikaner nationalism, ineffectual legislation, elitism, capitalism and the exploitation of Africans.

Over the last eight years I have spent much time looking into some really important questions: why do we have a climate and how has it changed? what role has the human race played in these changes? what will be the consequences if we continue burning fossils fuels? can we produce enough renewable, carbon neutral energy for the future, allowing for an increase in world population and for economic growth? The challenge - if we are to limit the long term global temperature rise to just 1 C above the current level, then we need to take urgent action. By 2050 the world must be producing seven times the amount of renewables we use today . This means that over the next 35 years we will have to develop these sources of energy 12 times faster than we've done in the last 35 years. We have to act now - this is our wake-up call. Getting governments to adopt policies with long term benefits is always difficult when they involve major short term investment but getting international agreement on limiting global warming is crucial. National targets must be agreed as well as an effective means of monitoring and enforcing them. Agreement must be based on the long term interests of the world not just on what is best "now, for me". Seven countries, China, USA, India, Russia, Japan, Canada and South Korea plus the EU account for three quarters of current greenhouse gas emissions. Negotiations must begin by getting these parties to agree on targets for themselves. They must then meet these targets and get everyone else to follow suit.

"[A] glorious guide to the miracle of life's sound." -The New York Times Book Review A lyrical exploration of the diverse sounds of our planet, the creative processes that produced these marvels, and the perils that sonic diversity now faces We live on a planet alive with song, music, and speech. David Haskell explores how these wonders came to be. In rain forests shimmering with insect sound and swamps pulsing with frog calls we learn about evolution's creative powers. From birds in the Rocky Mountains and on the streets of Paris, we discover how animals learn their songs and adapt to new environments. Below the waves, we hear our kinship to beings as different as snapping shrimp, toadfish, and whales. In the startlingly divergent sonic vibes of the animals of different continents, we experience the legacies of plate tectonics, the deep history of animal groups and their movements around the world, and the quirks of aesthetic evolution. Starting with the origins of animal song and traversing the whole arc of Earth history, Haskell illuminates and celebrates the emergence of the varied sounds of our world. In mammoth ivory flutes from Paleolithic caves, violins in modern concert halls, and electronic music in earbuds, we learn that human music and language belong within this story of ecology and evolution. Yet we are also destroyers, now silencing or smothering many of the sounds of the living Earth. Haskell takes us to threatened forests, noise-filled oceans, and loud city streets, and shows that sonic crises are not mere losses of sensory ornament. Sound is a generative force, and so the erasure of sonic diversity makes the world less creative, just, and beautiful. The appreciation of the beauty and brokenness of sound is therefore an important guide in today's convulsions and crises of change and inequity. Sounds Wild and Broken is an invitation to listen, wonder, belong, and act.

Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve to be made available for future generations to enjoy.

The interconnectedness of global society is increasingly visible through crises such as the current global health pandemic, emerging climate change impacts and increasing erosion of biodiversity. This timely Handbook navigates the challenges of adaptive governance in these complex contexts, stressing the necessarily compounded nature of bio-physical and social systems to ensure more desirable governance outcomes. Highlighting the dynamics and diversity of governance systems across the globe, leading experts in the field examine the successes and failures of these systems. Synthesising theory with methodology and practical case studies, chapters explore adaptive governance in forest management, marine environments and open data ecosystems, looking closely at the role of adaptive governance in climate mitigation and disaster risk reduction. Answering the call for large-scale transformations that move societies away from unsustainable development trajectories, this prescriptive Handbook explores the existing adaptive governance measures that have driven reflexive, sustainable change. Reflecting on the past decade of research in the field, it concludes by outlining new areas of contention and inquiry for the next decade of adaptive governance research. Interdisciplinary in scope, this comprehensive Handbook will prove an invigorating read for students and scholars of environmental law, governance and regulation, and political science and public policy. Policymakers looking to innovate their adaptive governance approaches will also find this a beneficial companion.

Climate Change in the Himalayas: Vulnerability and Resilience of Biodiversity and Forest Ecosystems explores and assesses issues affecting species survival in the rich forests of the Himalayan region. This book characterizes current biodiversity statuses, related ecosystem services, and provides new evidence and solutions for climate change effects on Himalayan animals and plants. Written by regional and international experts on climate change, ecosystems and the Himalayas, this book analyzes current species threats, loss of habitats, and carbon effects. It identifies critical areas requiring special attention and provides workable solutions for protection and ecosystem services. As many plant and animal species continue to be classified as extinct due to climate change, urbanization, and failing ecosystems, analyses and techniques in this book offer resolutions for sustaining current risks and curbing future risks. These can also be applied to other biodiverse, at-risk regions of the world.

The latest edition of this classic guide details how to understand and resolve a broad array of human-wildlife conflicts. This new edition of Human-Wildlife Conflict Management updates our understanding of the human dimensions, as well as biological and ecological concepts, underlying human-wildlife conflicts. While it provides wildlife professionals and students with the knowledge and adaptive management strategies to resolve such conflicts, it uniquely explores negative interactions with a wide range of wildlife taxa beyond those typically covered in traditional wildlife damage management, including invasive plants, invertebrates, and fish. Designed to help students and natural resource practitioners gain a deeper understanding of how to successfully avoid and resolve conflict between humans and wildlife, it is informed by author Russell F. Reidinger's decades of teaching students and professionals how to anticipate and manage human-wildlife conflicts, as well as his experience leading a national research program devoted to this work. The book covers important human-wildlife topics such as: * individual-, population-, and ecosystem-level effects * survey techniques * management methods * human dimensions * economic issues * legal and political aspects * damage management strategies Featuring explanations of important terminology and pertinent biological and ecological concepts, Reidinger also shares the latest research, provides a plethora of real-world examples, and includes suggestions for additional resources.

In this authoritative book, leading international experts examine the use of scenario analyses and modelling in environmental assessments, highlighting their potential uses in making evidence-based decisions to address the risks and adverse impacts of rapid environmental change such as global warming and the loss of biodiversity and ecosystem services. In addition to theoretical and conceptual issues, contributors analyse the latest research on the applications of scenarios and models, and discuss the opportunities and challenges in using them for policy relevant research and action. Chapters include in-depth case studies from Africa, Asia, Australia, Europe, North and South America as well as those with a global or regional focus, providing a comprehensive review of the available tools and frameworks for conducting environmental assessments in diverse contexts. This book offers a roadmap for strengthening the science policy interface for environmental decision-making. Environmental Assessments will be crucial reading for scholars, postgraduate students, practitioners and policy makers working in ecological economics and ecology, biodiversity and ecosystem services, climate change and natural resources. It will be particularly useful for those working for international and intergovernmental agencies, national governments, businesses and NGOs looking to make informed decisions about responses to environmental change.

LiDAR Principles, Processing and Applications in Forest Ecology introduces the principles of LiDAR technology and explains how to collect and process LiDAR data from different platforms based on real-world experience. The book provides state-of the-art algorithms on how to extract forest parameters from LiDAR and explains how to use them in forest ecology. It gives an interdisciplinary view, from the perspective of remote sensing and forest ecology. Because LiDAR is still rapidly developing, researchers must use programming languages to understand and process LiDAR data instead of established software. In response, this book provides Python code examples and sample data. Sections give a brief history and introduce the principles of LiDAR, as well as three commonly seen LiDAR platforms. The book lays out step-by-step coverage of LiDAR data processing and forest structure parameter extraction, complete with Python examples. Given the increasing usefulness of LiDAR in forest ecology, this volume represents an important resource for researchers, students and forest managers to better understand LiDAR technology and its use in forest ecology across the world. The title contains over 15 years of research, as well as contributions from scientists across the world.

Fifty years after the Stockholm Conference first placed the environment on the international development agenda, this Handbook continues the debate. The Handbook discusses both the profound environmental and theoretical critique against development as modernization and economic growth, and how perspectives on nature have changed from an infinite resource to a fragile subject. Weighing up the successes and failures linked to environmental concerns in development and environment policy and practice, it recognizes the roots of international development as a Western project linked to the expansion of an environmentally destructive capitalism. Through active dialogue across geographical areas, disciplines and epistemologies, chapters critically assess current perspectives on the topic, including decolonialism, degrowth and post-development. Grounded in recent research on topics such as agriculture, fisheries, infrastructure, forest protection, supply chain management, climate negotiations and the renewable transition, the Handbook integrates a range of different viewpoints on international development and the environment to provide a fresh take on this contentious relationship. With an international scope, this expansive Handbook will be integral reading for students and scholars of development and the environment. It will also be a beneficial read for practitioners working in international organizations and development agencies.

A grandmother of four, dons a 25lb rucksack and treks the 700kms El Camino to Santiago de Compostela in a sponsored quest to protect Manx wildlife. Her diary and notes of the route have been compiled into an inspirational journal of adventures across the vineyards, sierras and cities of northern Spain. Her light-hearted informative approach brings to life all that is to be seen on El Camino and an excellent guide for anyone contemplating walking this ancient and well-trodden path.