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Books > Science & Mathematics > Biology, life sciences > Life sciences: general issues > Taxonomy & systematics
Animal Evolution provides a comprehensive analysis of the evolutionary interrelationships and myriad diversity of the Animal Kingdom. It reviews the classical, morphological information from structure and embryology, as well as the new data gained from studies using immune stainings of nerves and muscles and blastomere markings which makes it possible to follow the fate of single blastomeres all the way to early organogenesis. Until recently, the information from analyses of gene sequences has tended to produce myriads of quite diverging trees. However, the latest generation of molecular methods, using many genes, expressed sequence tags, and even whole genomes, has brought a new stability to the field. For the first time this book brings together the information from these varied fields, and demonstrates that it is indeed now possible to build a phylogenetic tree from a combination of both morphology and gene sequences. This thoroughly revised third edition of Animal Evolution brings the subject fully up to date, especially in light of the latest advances in molecular techniques. The book is generously illustrated throughout with finely detailed line drawings and clear diagrams, many of them new.
For centuries orchids have been among the most popular of plant
families, with thousands of species and hybrids cultivated
worldwide for the diversity, beauty, and intricacy of their
flowers.
Animal life, now and over the past half billion years, is
incredibly diverse. Describing and understanding the evolution of
this diversity of body plans - from vertebrates such as humans and
fish to the numerous invertebrate groups including sponges,
insects, molluscs, and the many groups of worms - is a major goal
of evolutionary biology. In this book, a group of leading
researchers adopt a modern, integrated approach to describe how
current molecular genetic techniques and disciplines as diverse as
palaeontology, embryology, and genomics have been combined,
resulting in a dramatic renaissance in the study of animal
evolution.
Animal phylogeny is undergoing a major revolution due to the
availability of an exponentially increasing amount of molecular
data and the application of novel methods of phylogentic
reconstruction, as well as the many spectacular advances in
palaeontology and molecular developmental biology. Traditional
views of the relationships among major phyla have been shaken and
new, often unexpected, relationships are now being considered. At
the same tiem, the emerging discipline of evolutionary
developmental biology, or 'evo-devo', has offered new insights into
the origin and evolvability of major traits of animal architecture
and life cycle. All these developments call for a revised
interpretation of the pathways along which animal structure and
development has evolved since the origin of the Metazoa.
Even before the publication of Darwin's Origin of Species, the perception of evolutionary change has been a tree-like pattern of diversification - with divergent branches spreading further and further from the trunk. In the only illustration of Darwin's treatise, branches large and small never reconnect. However, it is now evident that this view does not adequately encompass the richness of evolutionary pattern and process. Instead, the evolution of species from microbes to mammals builds like a web that crosses and re-crosses through genetic exchange, even as it grows outward from a point of origin. Some of the avenues for genetic exchange, for example introgression through sexual recombination versus lateral gene transfer mediated by transposable elements, are based on definably different molecular mechanisms. However, even such widely different genetic processes may result in similar effects on adaptations (either new or transferred), genome evolution, population genetics, and the evolutionary/ecological trajectory of organisms. For example, the evolution of novel adaptations (resulting from lateral gene transfer) leading to the flea-borne, deadly, causative agent of plague from a rarely-fatal, orally-transmitted, bacterial species is quite similar to the adaptations accrued from natural hybridization between annual sunflower species resulting in the formation of several new species. Thus, more and more data indicate that evolution has resulted in lineages consisting of mosaics of genes derived from different ancestors. It is therefore becoming increasingly clear that the tree is an inadequate metaphor of evolutionary change. In this book, Arnold promotes the 'web-of-life' metaphoras a more appropriate representation of evolutionary change in all lifeforms.
Bobcat: Master of Survival tells the story of the most adaptable
and resilient wild feline in the world. While half the wild cat
species worldwide are in danger, the bobcat is thriving, even
expanding its range in North America. Why are bobcats flourishing
when so many other wild felines are advancing towards extinction?
The book explains how scientists apply the latest in wildlife
research technology to probe this diminutive predator's habits and
behavior. The reader is invited inside the bobcat's world to see
how they hunt, kill prey, raise their young, coexist with humans,
and deftly navigate the endless obstacles to survival.
For centuries orchids have been among the most popular of plant
families, with thousands of species and hybrids cultivated
worldwide for the diversity, beauty, and intricacy of their
flowers.
This book is the most up to date work on honeycreepers, covering the life history, relationships, and biology of the birds. The honeycreepers, with their bright colouration, and canary-like songs, are famed for their unique evolutionary history as a geographically isolated group that has undergone a spectacular burst of adaptions to the islands of the Hawaiian archipelago.
Genera Orchidacearum is the first monograph of the world's orchid genera that reflects their long evolutionary history and reveals relationships based on genealogical descent and the most up-to-date DNA data.
The first complete treatment of the sedges of North America in more than half a century, this volume tackles the notoriously difficult to identify Cyperaceae with illustrations of all species in the group, emphasizing its great ecological importance. With extensive information on the more than 460 species of Carex, this third volume out of five covering the monocots of North America also includes 96 species of Cyperus, 68 species of Rhynchospora, 66 species of Eleocharis, and the monotypic, North American endemic Cymophyllus. The treatments--written and reviewed by experts--all contain identification keys, summaries of habitats and geographic ranges, distribution maps, pertinent synonymies, descriptions, chromosome numbers, and phenological information. Over 100 illustrations and 945 individual species distribution maps provide ecologists, applied biologists, and other readers with an authoritative account of the Cyperaceae.
The second of five volumes covering the monocots in North America north of Mexico, this volume features some of the most spectacular and showy native and naturalized species including orchids, lilies, irises, trilliums, hymenocallises, alliums, hostas, tulips, erythroniums, agaves, and yuccas. Plants representing eleven families following Cronquist's classification are in this work. The genus containing onions, garlic, and chives--Allium--is represented in the flora by almost 100 native and naturalized species. The Chicago native, Thismia americana, is one of five species in three genera of the mostly tropical Burmanniaceae, included in the volume, and four families (Aloaceae, Stmonaceae, Smilacaceae, and Dioscoreaceae) are each represented by single genera. With 112 illustrations and 1,138 individual species distribution maps, this thorough volume has identification keys, summaries of habitats and geographic ranges, distribution maps, pertinent synonymies, descriptions, chromosome numbers, phenological information, and other significant biological observations for each species.
Cryptic species are organisms which look identical, but which represent distinct evolutionary lineages. They are an emerging trend in organismal biology across all groups, from flatworms, insects, amphibians, primates, to vascular plants. This book critically evaluates the phenomenon of cryptic species and demonstrates how they can play a valuable role in improving our understanding of evolution, in particular of morphological stasis. It also explores how the recognition of cryptic species is intrinsically linked to the so-called 'species problem', the lack of a unifying species concept in biology, and suggests alternative approaches. Bringing together a range of perspectives from practicing taxonomists, the book presents case studies of cryptic species across a range of animal and plant groups. It will be an invaluable text for all biologists interested in species and their delimitation, definition, and purpose, including undergraduate and graduate students and researchers.
The protein molecule is the basic building block of every living entity. Its deficiency leads to restricted growth and development of individuals. Globally, such malnutrition is on the rise due to various reasons such as rapid population growth, stagnation of productivity, and ever-rising costs. Millions of people, especially in developing and under-developed countries, suffer from protein malnutrition and the only possible solution is to encourage farmers to grow high-protein food legume crops in their fields for domestic consumption. This, however, could be possible if farmers are provided with new cultivars with high yield, and resistance to major insects, diseases, and key abiotic stresses. The major food legume crops are chickpea, cowpea, common bean, groundnut, lentil, pigeonpea, and soybean. Predominantly, the legume crops are grown under a subsistence level and, therefore, in comparison to cereals and horticultural crops their productivity is low and highly variable. The crop breeders around the globe are engaged in breeding suitable cultivars for harsh and changing environments but success has been limited and not up to needs. With the recent development of new technologies in plant sciences, efforts are being made to help under-privileged farmers through breeding new cultivars which will produce more protein per unit of land area. In this book, the contributors analyze the constraints, review new technologies, and propose a future course of crop breeding programs in seven cold and warm season legume crops.
This volume provides a comprehensive account of the systematic vegatative anatomy of the plant family Iridaceae. The iris family includes several horticulturally important genera, such as Iris Crocus, Gladiolus and Freesia, and many others of potential horticultural value. The book contains much original information, and places it in the context of the taxonomy and relationships of the plants concerned. It also summarizes the relevant literature. Like its predecessors in the Anatomy of the Monocotyledons series, Volume VIII: Iridaceae will be an essential reference work for students and professionals in botany and horticulture.
This book provides a conceptually organized framework to understand the phenomenon of biological invasions at the Anthropocene global scale. Most advances toward that aim have been provided from North American and European researchers, with fewer contributions from Australia and South Africa. Here we fill the void from the Neotropics, focusing on the research experience in South American countries, with a strong emphasis on Argentina and Chile. The text is divided into two parts: The first half comprises self-contained chapters, providing a conceptual, bibliographic and empirical foundation in the field of invasion biology, from an Anthropocene perspective. The second half reviews the ecology, biogeography, and local impacts in South America of exotic species groups (European rabbit, Eurasian wild boar, Canadian beaver, North American mink, and Holarctic freshwater fishes), which are shown to be useful models for case studies of global relevance.
Natural resources and associated biological diversity provide the basis of livelihood for human population, particularly in the rural areas and mountain regions across the globe. Asia is home to the world's highest mountain regions including the Himalayas, Karakorum and Hindukush. These regions are renowned around the globe because of their unique beauty, climate, and biocultural diversity. Because of geoclimatic conditions, the mountains of Asia are medicinal and food plant diversity hot spots. The indigenous communities residing in the valleys of these mountains have their own culture and traditions, and have a long history of interaction with the surrounding plant diversity. Local inhabitants of these mountains areas possess significant traditional knowledge of plant species used as food, medicine, and for cultural purposes. So far, many workers have reported traditional uses of plant species from different regions of Asia including some mountain areas; however, there is not one inclusive document on the ethnobotany of mountains in Asia. This book provides a comprehensive overview on ethno-ecological knowledge and cross cultural variation in the application of plant species among various communities residing in the mountains of Asia; cross cultural variation in traditional uses of plant species by the mountain communities; high value medicinal and food plant species; and threats and conservation status of plant species and traditional knowledge. This book should be useful to researchers of biodiversity and conservation, ethnobiologists, ethnoecologists, naturalists, phytochemists, pharmacists, policy makers, and all who have a devotion to nature.
This is the third of three volumes of "Keys to the Trematoda," a series on the systematics and identification of the Class Trematoda. It covers five superfamilies with the Order "Plagiorchiida" and the family "Didymozoidae," with the keys for their identification at the family, subfamily and generic levels. It also includes a key to all dignean superfamilies, including those treated in detail in volumes one and two.
This fully updated edition explores conceptual as well as technical guidelines for plant taxonomists and geneticists, such as the increasing use of next-generation sequencing (NGS) technologies for numerous applications in plant taxonomy. The volume provides molecular approaches to be used within an "integrative taxonomy" framework, combining a range of nucleic acid and cytogenetic data together with other crucial information (taxonomy, morphology, anatomy, ecology, reproductive biology, biogeography, paleobotany, etc.), which will help not only to best circumvent species delimitation but also to resolve the evolutionary processes in play. Written for the highly successful Methods in Molecular Biology series, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and up-to-date, Molecular Plant Taxonomy: Methods and Protocols, Second Edition is an ideal guide for researchers seeking a better understanding of evolutionary processes, at species and population level, through molecular techniques.
Microbes are ubiquitous in nature. Among microbes, fungal communities play an important role in agriculture, the environment, and medicine. Vast fungal diversity has been associated with plant systems, namely epiphytic fungi, endophytic fungi, and rhizospheric fungi. These fungi associated with plant systems play an important role in plant growth, crop yield, and soil health. Rhizospheric fungi, present in rhizospheric zones, get their nutrients from root exudates released by plant root systems, which help with their growth, development, and microbe activity. Endophytic fungi typically enter plant hosts through naturally occurring wounds that are the result of plant growth, through root hairs, or at epidermal conjunctions. Phyllospheric fungi may survive or proliferate on leaves depending on material influences in leaf diffuseness or exudates. The diverse nature of these fungal communities is a key component of soil-plant systems, where they are engaged in a network of interactions endophytically, phyllospherically, as well as in the rhizosphere, and thus have emerged as a promising tool for sustainable agriculture. These fungal communities promote plant growth directly and indirectly by using plant growth promoting (PGP) attributes. These PGP fungi can be used as biofertilizers and biocontrol agents in place of chemical fertilizers and pesticides for a more eco-friendly method of promoting sustainable agriculture and environments. This first volume of a two-volume set covers the biodiversity of plant-associated fungal communities and their role in plant growth promotion, the mitigation of abiotic stress, and soil fertility for sustainable agriculture. This book should be useful to those working in the biological sciences, especially for microbiologists, microbial biotechnologists, biochemists, and researchers and scientists of fungal biotechnology.
Chaetomium genus was established by Gustav Kunze in 1817. According to Index Fungorum Partnership, there are 273 Chaetomium species accepted till now. Members of the genus Chaetomium are capable of colonizing various substrates and are well-known for their ability to degrade cellulose and to produce a variety of bioactive metabolites. More than 200 compounds have been reported from this genus. A huge number of new and bioactive secondary metabolites associated with unique and diverse structural types, such as chaetoglobosins, epipolythiodioxopiperazines, azaphilones, depsidones, xanthones, anthraquinones, chromones, and steroids, have been isolated and identified. Many of the compounds have been reported to possess significant biological activities, such as antitumor, antimalarial, cytotoxic, enzyme inhibitory, antimicrobial, phytotoxic, antirheumatoid and other activities. Chaetomium taxa are frequently reported to be cellulase and ligninase producers with the ability to degrade cellulosic and woody materials. This is the first, comprehensive volume covering Chaetomium genus in detail. It includes the latest research, methods, and applications, and was written by scholars working directly in the field. The book also contains informative illustrations and is fully referenced for further reading.
Nematodes that are parasites of insects are no longer a laboratory curiosity. They have begun to be accepted as environmentally benign alternatives to the use of chemical insecticides, for the control of insect pests. Nematode worms are now applied as biological control agents against insect pests of numerous horticultural and agricultural crops.This book provides a comprehensive review of entomopathogenic nematology. It begins by reviewing fundamental biology and setting a taxonomic foundation for nematodes and their bacterial symbionts. Several chapters are devoted to functional processes involved in parasitism and to nematode ecology. Later chapters describe technological advances and control methodologies.
This book provides a knowledge-based view to the dynamic capabilities in an organization. The author integrates two existing views on gaining competitive advantage: the Knowledge View which suggests that the capability of organizations to learn faster than competitors is the only source of competitiveness; and the Dynamic Capability View which speculates that a fi rm's competitive advantage rests on it's ability to adapt to changes in the business environment. Using the IT sector in India as a case study, this book provides and tests a new framework-Knowledge-Based Dynamic Capabilities-in the prediction of competitive advantage in organizations.
The aim of this book is to offer information about the Pharmacological Properties of Native Plants from Argentina to students, researchers and graduates interested in the fields of Ethnobotany, Pharmacognosy, Phytochemistry, Pharmacy, and Medicine. The book includes summary information about the native plants from Argentina with medical activity comprising their botanical characteristics, distribution, characteristics of the regions where they grow, ethnobotanical information, chemical data, biological activity, establishment of in vitro cultures, toxicity, and legal status.
Mosquitoes are undeniably one of the most studied groups of insects due to their great impact on human health as the agents that transmit the pathogens which cause malaria, filariasis and numerous viral diseases, such as yellow fever and dengue fever. The study of mosquitoes has given rise to a plethora of names for subspecies, species, subgenera, genera and family-level groups, many of which are duplicate names for the same entity. This unique volume is a comprehensive compilation of all scientific names introduced at all levels of classification within the family since the official start of zoological nomenclature. The work is largely a lexicon that is historical and informative as well as nomenclatural and bibliographic. Unlike catalogues, it contains sections devoted separately to the groups of names regulated by the International Code of Zoological Nomenclature, the species, genus and family groups, as well as sections concerned with names derived from personal and geographical names and other sources. In addition to insights into the history of mosquito classification, attention given to the formation, latinization and derivation of names makes the work a crucial contribution to mosquito science. Culicipedia is an important comprehensive reference source for students, entomologists, professional taxonomists and other scientists interested in culicid nomenclature, classification and the etymology of scientific names.
This 10th edition, of the acclaimed reference work, has more than 21,000 entries, and provides the most complete listing available of generic names of fungi, their families and orders, their attributes and descriptive terms. For each genus, the authority, the date of publication, status, systematic position, number of accepted species, distribution, and key references are given. Diagnoses of families and details of orders and higher categories are included for all groups of fungi. In addition, there are biographic notes, information on well-known metabolites and mycotoxins, and concise accounts of almost all pure and applied aspects of the subject (including citations of important literature). Co-published by: Commonwealth Scientific and Industrial Research Organisation (CSIRO) |
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