Download or read book Phylogeny and Biogeography of the Neotropical Diaptominae written by Daniel Previattelli and published by . This book was released on 2010 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Phylogeny and Biogeography of Neotropical Flowering Plant Tribe Citharexyleae Verbenaceae written by Laura A. Frost and published by . This book was released on 2018 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt: The New World tropics, or Neotropics, located within tropical latitudes of North and South America, are one of the most diverse ecoregion in the world. However, this diversity is poorly understood in terms of described biodiversity—species numbers are uncertain and collection records are depauperate for many groups distributed in remote locations or dense forest—and patterns of evolution contributing to high diversity—factors underlying speciation in lineages are not well understood. A molecular phylogenetic and systematic study of the Neotropical flowering plant tribe Citharexyleae in the Verbena family (Verbenaceae), which also originated and diversified primarily in the Neotropics, was undertaken in order to describe diversity and understand patterns of evolution in an understudied Neotropical lineage. Chapter 1 comprises a systematic study of tribe Citharexyleae, which describes relationships between the three genera in the tribe (Baillonia (1 species), Citharexylum (ca. 70 species), and Rehdera (2 species)) as well as relationships within Citharexylum, the largest genus. Baillonia is included in Citharexylum and Rehdera is retained distinct. A subgeneric classification including six subgenera system is proposed for Citharexylum, and morphological characters associated with each major clade described. In Chapter 2, the biogeographical patterns underpinning diversification in Citharexylum are explored. Citharexylum comprises ca. 70 species distributed widely throughout the Neotropics, from northern Mexico to southern Brazil and Argentina. Species occupy multiple biomes including continuously moist broadleaf forest, seasonally dry tropical forest, tropical coniferous forest, high elevation shrublands, and arid shrublands. The contributions of radiation within a biome and adaptation to/colonization of new biomes are compared. Both patterns have played important roles in the diversification of Citharexylum, and major lineages within Citharexylum display different patterns. The Mesoamerican clade exhibits a pattern of radiation within the ancestral biome with more recent, independent colonization events, whereas the South American clade exhibits a pattern of early colonization and radiation within biomes. Though diversification rates are higher in the Mesoamerican clade, both clades have produced similar taxonomic diversity in the same amount of time. Both patterns contribute equally to overall diversity in the genus. Chapter 3 incorporates molecular sequence data generated by the previous chapters with data generated in previous studies other lineages of Verbenaceae and newly generated data to produce an updated phylogeny of the Verbena family. Verbenaceae comprises ca. 770 species in 28 genera. A previous family-wide study sampled 7 chloroplast regions for 121 species. The expanded dataset encompasses twelve chloroplast regions, two nuclear ribosomal spacers, and eight low-copy nuclear loci for 366 species. Two new clades in Verbenaceae are described, including resurrection of the genus Scleröon Benth in Lindl.
Download or read book Freshwater Animal Diversity Assessment written by E.V. Balian and published by Springer Science & Business Media. This book was released on 2008-04-27 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a comprehensive study of species- and genus-level diversity and chorology of the global freshwater fauna to date. It gives a state of the art assessment of the diversity and distribution of Metazoa in the continental waters of the world.
Download or read book Aquatic Biodiversity written by Koen Martens and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this age of increased fundamental and applied research on biodiversity, no single volume was as yet devoted to the various temporal and spatial aspects of aquatic biodiversity. The present book is published in honour of Professor Henri Dumont (Ghent, Belgium) at the occasion of his retirement as Editor-in-Chief of Hydrobiologia. The volume presents a selection of contributions on aquatic biodiversity, written by colleagues from the editorial board, fellow editors of aquatic journals and former students and collaborators. Contributions deal with a wide spectrum of topics related to aquatic biodiversity and cover fields such as actual- and palaeolimnology, taxonomy, and fundamental and applied limnology. Even reconnaissance chapters on management and cultural impact of water bodies are included. The book combines state-of-the-art contributions in aquatic sciences.
Download or read book Freshwater Biodiversity written by Brian Groombridge and published by . This book was released on 1998 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents "Freshwater Biodiversity: A Preliminary Global Assessment," number eight of the World Conservation Monitoring Centre (WCMC) Biodiversity Series. Features information on the biodiversity of inland waters, prepared for the United Nations Environment Programme (UNEP) by the WCMC in Cambridge.
Download or read book Faunal Diversity of Aquatic Invertebrates of Deepor Beel a Ramsar Site Assam Northeast India written by Sumita Sharma and published by . This book was released on 2013 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thorp and Covich s Freshwater Invertebrates written by Cristina Damborenea and published by Academic Press. This book was released on 2020-06-26 with total page 1048 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thorp and Covich's Freshwater Invertebrates, Volume 5: Keys to Neotropical and Antarctic Fauna, Fourth Edition, covers inland water invertebrates of the world. It began with Ecology and General Biology, Volume One (Thorp and Rogers, editors, 2015) and was followed by three volumes emphasizing taxonomic keys to general invertebrates of the Nearctic (2016), neotropical hexapods (2018), and general invertebrates of the Palearctic (2019). All volumes are designed for multiple uses and levels of expertise by professionals in universities, government agencies, private companies, and graduate and undergraduate students. Includes zoogeographic coverage of the entire Neotropics, from central Mexico and the Caribbean Islands, to the tip of South America Provides identification keys for aquatic invertebrates to genus or species level for many groups, with keys progressing from higher to lower taxonomic levels Contains terminology and morphology, materials preparation and preservation, and references
Download or read book Copepoda Cyclopoida written by Süphan Karaytug and published by . This book was released on 1999 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ancient Animals New Challenges written by Manuel Maldonado and published by Springer. This book was released on 2015-03-21 with total page 343 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book summarizes the latest advances in sponge science through a concise selection of studies presented at the VIII World Sponge Conference. The collection of articles reflects hot, ongoing debates in molecular research, such as the monophyletic versus paraphyletic nature of the sponge group, or the new awareness on pros and cons of standard barcodes and other markers in sponge taxonomy and phylogeny. It also features articles showing how the new sequencing technologies reveal the functional and phylogenetic complexity of the "microbial universe" associated to sponge tissues. The ecological interactions of sponges, the effects of nutrients and pollutants, the variability in reproductive patterns, and the processes generating genotypic and phenotypic variability in sponge populations are covered in several contributions. Zoogeography, population structure and dynamics are also approached with both traditional and molecular tools. The effect of anthropogenic disturbance on the natural environment finds its place in this volume with papers dealing with metal accumulation and the potential role of sponges as biomonitors. Biodiversity data from unexplored tropical and deep sea areas are presented. We hope readers will enjoy the selection of papers, which we believe represent collectively a significant contribution to our current understanding of sponges. Previously published in Hydrobiologia, vol. 687, 2012
Download or read book Freshwater Biodiversity written by David Dudgeon and published by Cambridge University Press. This book was released on 2020-05-21 with total page 517 pages. Available in PDF, EPUB and Kindle. Book excerpt: Growing human populations and higher demands for water impose increasing impacts and stresses upon freshwater biodiversity. Their combined effects have made these animals more endangered than their terrestrial and marine counterparts. Overuse and contamination of water, overexploitation and overfishing, introduction of alien species, and alteration of natural flow regimes have led to a 'great thinning' and declines in abundance of freshwater animals, a 'great shrinking' in body size with reductions in large species, and a 'great mixing' whereby the spread of introduced species has tended to homogenize previously dissimilar communities in different parts of the world. Climate change and warming temperatures will alter global water availability, and exacerbate the other threat factors. What conservation action is needed to halt or reverse these trends, and preserve freshwater biodiversity in a rapidly changing world? This book offers the tools and approaches that can be deployed to help conserve freshwater biodiversity.
Download or read book Deep Sea written by Kailash Chandra and published by . This book was released on 2021 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Parasitic Copepoda of British Fishes written by Z. Kabata and published by London : Ray Society. This book was released on 1979 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guides to the Identification of the Microinvertebrates of the Continental Waters of the World written by Marina Y. Orlova-Bienkowskaja and published by . This book was released on 2001 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lake Tanganyika and Its Life written by G. W. Coulter and published by Oxford University Press on Demand. This book was released on 1991 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first comprehensive account of the one of the world's most remarkable lakes, drawing together much scattered and hard-to-access knowledge. The history of the lake, its hydrodynamics, extensive chemistry, and flora and fauna are among the areas examined. Particular attention is paid to the development and descriptions of the pelagic and benthic fish communities. Researchers will find the comprehensive bibliography a useful source of information.
Download or read book Aquatic Ecology and Biodiversity written by Olando Martin and published by . This book was released on 2017-05-17 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aquatic ecology is the study of various interactions of flora, fauna and ecological characteristics in an aquatic environment. It comprises the study of marine as well as freshwater ecosystems. This book presents complex subject of aquatic ecology in the most comprehensible and easy to understand language. It aims to present researches that have transformed this discipline and added its advancement. This book on aquatic ecology and biodiversity consist of topics dealing with preservation of ecologically significant areas, damage caused due to natural calamities and fishing activities, etc. The book would prove fruitful for researchers and students in the area of sustainable agriculture, natural habitat management and wildlife habitats.
Download or read book Fauna of Tripura Vertebrates written by and published by . This book was released on 2000 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Faunal Diversity of Chaurs of North Bihar written by and published by . This book was released on 2011 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
