Download or read book Evolutionary Ecology of Extinct Brachiopods written by Rituparna Bose and published by LAP Lambert Academic Publishing. This book was released on 2012-07 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: The prerequisite to developing effective strategies for conserving biodiversity is a profound understanding of the taxonomy and phylogeny of all life forms. It is especially important to appreciate the significance of such studies in extinct organisms; especially in organisms that were abundant in a certain geologic era, but have subsequently dwindled or become extinct. Such studies should help to understand extinction, accurately gauge the underlying causes behind loss of biodiversity and make predictions about future distribution of biodiversity. I use bio-statistical approaches to trace loss of biodiversity, and what should also serve as a starting point for conservation. My research interests encompass paleontology, geobiology, sedimentology, meteorology and paleoceanography; and have implications for the petroleum industry as research could potentially uncover new oil-rich locations.
Download or read book Biodiversity and Evolutionary Ecology of Extinct Organisms written by Rituparna Bose and published by Springer Science & Business Media. This book was released on 2012-08-11 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: Increasing rate of species extinction in the present day will lead to a huge biodiversity crisis; eventually, this will lead to the paucity of non-renewable resources of energy making our Earth unsustainable in future. To save our mother planet from this crisis, studies need to be performed to discover abundant new fossil sites on Earth for continued access to oil-rich locations. Most importantly, a holistic approach is necessary in solving the present problem of biodiversity loss. This book presents newly developed quantitative models in understanding the biodiversity, evolution and ecology of extinct organisms. This will assist future earth scientists in understanding the natural and anthropogenic causes behind biodiversity crisis and ecosystem collapse. In addition, this study would be of great interest to exploration geologists and geophysicists in potentially unraveling natural resources from our sustainable Earth.
Download or read book Palaeobiology of Middle Paleozoic Marine Brachiopods written by Rituparna Bose and published by Springer Science & Business Media. This book was released on 2013-05-14 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fossil species appear to persist morphologically unchanged for long intervals of geologic time, punctuated by short bursts of rapid change as explained by the Ecological Evolutionary Units (EEUs). Here, morphological variation in Paleozoic atrypide morphology at the subfamily level (Atrypinae and Variatrypinae) from the Silurian and Devonian time intervals in the third Paleozoic EEU (~444-359 my) were investigated using relatively new techniques of quantitative modeling. The study explains how a group of closely related taxa in atrypide subfamilies exhibit morphological conservation through time in P3 EEU within the Eastern North America region.
Download or read book Living and Fossil Brachiopods written by M. J. S. Rudwick and published by . This book was released on 1970 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Devonian Paleoenvironments of Ohio written by Rituparna Bose and published by Springer Science & Business Media. This book was released on 2012-12-14 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbonate depositional systems in the Paleozoic geologic time represent fewer studies in paleoecological interactions than the siliciclastic systems. To evaluate this difference, the paleontology of the Middle Devonian Dundee Formation in Ohio has been explored. This geologic formation represents an important environment in the Michigan Basin of North America. Understanding biotic relationships such as mutualism, commensalism, parasitism and predation in an ecological community is important in unraveling the mystery of the fossil record. This research has contributed a large field collection which will be useful in documenting the fossil content of this unit for future workers. Rituparna Bose used new microscopic and imaging techniques in qualitatively analyzing the biotic interactions in small invertebrate shells. More importantly, she solved complex hypotheses in newly emerging problems in the field of geology and paleontology, such as the biodiversity crisis. Her study involved exploring the Devonian geology and paleontology of a geologic formation of a new unexplored quarry in Ohio, namely the Whitehouse Quarry in Lucas County, Ohio. She identified Devonian brachiopods to the genus level based on their morphology, and diagnosed paleoecological entities on host brachiopods and further measured episkeletobiont traces on hosts to understand the effects of environment and evolution on extinct species. Such studies have implications in predicting future biodiversity, ecosystem conservation and climate change. This research will also assist future workers to compare the ecology of brachiopod hosts of the Dundee Limestone with that of other Devonian brachiopods, from both carbonate and siliciclastic settings.
Download or read book Brachiopods around the Permian Triassic Boundary of South China written by Wei-Hong He and published by Springer. This book was released on 2019-01-21 with total page 269 pages. Available in PDF, EPUB and Kindle. Book excerpt: This timely book documents marvelous brachiopod fossils from the Palaeozoic-Mesozoic transition of South China. Numerous beautiful pictures and detailed descriptions (specifically the measurements of body size) of brachiopod species are presented. Systematic discussion on the evolution of brachiopod biodiversity and morphological features across the critical interval is not only extremely important for paleontologists to understand the marine ecosystem evolution from the Palaeozoic to the Mesozoic, but also attractive for students who need to know about the end-Permian mass extinction. The book distinguishes itself from other studies by its detailed study of the taxonomy, biodiversity and paleoecology of Permian-Triassic brachiopods from different palaeogeographic facies, especially from the deep-water environment in South China. The book also offers a unique study of the response of morphological features of brachiopods to palaeoenvironmental changes, providing insights for the process of Permian-Triassic crisis.
Download or read book Brachiopods written by Paul Copper and published by Routledge. This book was released on 2018-02-02 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection of conference papers presents information on the molecular genetics, biomineralization, growth and ecology of extant brachiopod stocks (extrapolated back to the Cambrian), and the shell microstructure, taphonomy, paleogeography, evolution, and taxonomy of fossil brachiopods.
Download or read book Evolutionary Paleobiology written by James W. Valentine and published by University of Chicago Press. This book was released on 1996-12-15 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: Representing the state of the art in evolutionary paleobiology, this book provides a much-needed overview of this rapidly changing field. An influx of ideas and techniques both from other areas of biology and from within paleobiology itself have resulted in numerous recent advances, including increased recognition of the relationships between ecological and evolutionary theory, renewed vigor in the study of ecological communities over geologic timescales, increased understanding of biogeographical patterns, and new mathematical approaches to studying the form and structure of plants and animals. Contributors to this volume—a veritable who's who of eminent researchers—present the results of original research and new theoretical developments, and provide directions for future studies. Individually wide ranging, these papers all share a debt to the work of James W. Valentine, one of the founders of modern evolutionary paleobiology. This volume's unified approach to the study of life on earth will be a major contribution to paleobiology, evolution, and ecology.
Download or read book Brachiopods written by Howard Brunton and published by CRC Press. This book was released on 2001-11-29 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: The growth history of a brachiopod is entombed in its shell, but research on fossil and living brachiopods has generated unanswered questions about these marine invertebrates. Several contributors to Brachiopods Past and Present comment on their differing structures and morphological detail. They use these as examples of ontogenetic and evolutionar
Download or read book Tempo and Mode in Evolution written by George Gaylord Simpson and published by . This book was released on 1965 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Morphometric Evolution of Paleozoic Brachiopods written by Rituparna Bose and published by . This book was released on 2011 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: Atrypida (Brachiopoda, Rhynchonellata) are ancient marine invertebrate fossils that are well preserved, abundant and diverse in the mid-Paleozoic (ecological evolutionary unit (EEU) P3). Atrypides thus serve as useful tools for morphological shape study. While qualitative studies have been performed for solving problems in brachiopod taxonomy, phylogeny, evolution and ecology, quantitative studies have been lacking. After qualitative taxonomic identifications, morphological shape of the Silurian-Devonian Eastern North American atrypids was analyzed using geometric morphometrics, placing the results in evolutionary and ecological perspectives. Landmark analysis was performed on dorsal valves, ventral valves, anterior and posterior regions. These data were used for comparison with morphological distances, calculated as pairwise Procrustes distances. Evolutionary divergence times were determined from atrypide phylogeny and from stratigraphic zonations in the Michigan Traverse Group. Maximum likelihood tests were performed to determine evolutionary rates and modes of morphological divergence within and between genera. Episkeletobionts on hosts were examined to determine how morphological variation affected these assemblages. Morphometric results suggest that morphological distances within each genus was as large as those observed between genera. Thus, referring individuals to a particular genus, based on shell shape alone is challenging. Diversifying selection has been acting on morphological divergence of these generic pairs and morphometric distances are consistent with the prior phylogenetic arrangement. Short term changes observed in individual lineages, that gets averaged out in time when compared to other genera, together with considerable morphological overlap observed between genera in P3 EEU, suggests a pattern consistent with stasis, as expected in EEUs. The Traverse Group atrypid species lineage, which represents a 5 m.y. time span, exhibited lightly constrained morphological evolution, reflecting a stasis-like pattern. Greater encrustation preferences on one of two morphotypes on the dorsal valve and posterior region, suggest greater surface area facilitated by relatively deeper profile hosts in their reclining life orientation. Overall, the integration of various paleontological datasets reveal that the seemingly homogenous group of atrypide brachiopods exhibit subtle but significant evolution in their shell shape that is correlated with several kinds of ecological differences.
Download or read book Late Ordovician Orthide and Billingsellide Brachiopods from Anticosti Island Eastern Canada written by Jisuo Jin and published by NRC Research Press. This book was released on 2008 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: A monographic study that deals with a major marine faunal turnover during the Late Ordovician global greenhouse/icehouse episodes. It aims to document the diversity change of brachiopods (one of the major groups of marine life during the Ordovician Period) from pre-extinction to extinction times.
Download or read book Brachiopods Through Time written by D. I. MacKinnon and published by CRC Press. This book was released on 1991-06-01 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Brachiopods written by Howard Brunton and published by CRC Press. This book was released on 2001-11-29 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: The growth history of a brachiopod is entombed in its shell, but research on fossil and living brachiopods has generated unanswered questions about these marine invertebrates. Several contributors to Brachiopods Past and Present comment on their differing structures and morphological detail. They use these as examples of ontogenetic and evolutionary change, as indicators of taxonomic relationships, or to discuss micro-structural shell morphology. Population studies of various species and recent progress in molecular phylogeny are presented. This single compilation is a must for postgraduate students and researchers in evolution, zoology, geology, palaeontology and related fields.
Download or read book Evolution and Escalation written by Geerat Vermeij and published by Princeton University Press. This book was released on 2021-02-09 with total page 547 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here is one biologist's interpretation of the chronology of life during the last six hundred million years of earth history: an extended essay that draws on the author's own data and a wide-ranging literature survey to discuss the nature and dynamics of evolutionary change in organisms and their biological surroundings. Geerat Vermeij demonstrates that escalation--the process by which species adapt to, or are limited by, their enemies as the latter increase in ability to acquire and retain resources--has been a dominant theme in the history of life despite frequent episodes of extinction.
Download or read book The Evolution of the Brachiopoda written by Agnes Crane and published by . This book was released on 1895 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lessons in Immunity written by Loriano Ballarin and published by Academic Press. This book was released on 2016-04-08 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lessons in Immunity: From Single-cell Organisms to Mammals stems from the activity of the Italian Association of Developmental and Comparative Immunobiology (IADCI), represented by the editors. This book is presented as a series of short overviews that report on the current state of various relevant fields of immunobiology from an evolutionary perspective. The overviews are written by authors directly involved in the research, and most are members of the IADCI or have otherwise been involved in the related research for their respective overview. This publication offers scientists and teachers an easy and updated reference tool. - Provides simple and updated reviews on the immunobiology of a wide spectrum of organisms, considered in an evolutionary context - Focuses on both cells and humoral components of a variety of non-classical model organisms - Offers in a single volume many contributions which can help with understanding the evolution of immune responses and the main adaptations in animal phyla - Presents a valuable holistic cross-sectional approach for teaching immunology and its applications
