A Systematic Vademecum To The Vascular Plants Of Saba PDF Download
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Author | : Franklin Axelrod |
Publisher | : |
Total Pages | : |
Release | : 2020-11-23 |
Genre | : |
ISBN | : 9781889878584 |
Download A Systematic Vademecum to the Vascular Plants of Saba Book in PDF, ePub and Kindle
A Systematic Vademecum to the Vascular Plants of Saba is a synoptic flora whose subject matter is the 771 taxa that have been thus far collected on the island of Saba. It is intended to meet the needs of botanists, ecologists and others who wish to know which plants are now present on the island and which plants are no longer known to be present.
Author | : Franklin S. Axelrod |
Publisher | : |
Total Pages | : 104 |
Release | : 2017-07 |
Genre | : Plants |
ISBN | : 9781889878577 |
Download A Systematic Vademecum to the Vascular Plants of Sint Eustatius Book in PDF, ePub and Kindle
Author | : Barbara M. Thiers |
Publisher | : Timber Press |
Total Pages | : 728 |
Release | : 2020-12-08 |
Genre | : Nature |
ISBN | : 1643260529 |
Download Herbarium Book in PDF, ePub and Kindle
“A sweeping history of the origins, development, and future of herbaria and their role in plant consternation.” —The American Gardener Since the 1500s, scientists have documented the plants and fungi that grew around them, organizing the specimens into collections. Known as herbaria, these archives helped give rise to botany as its own scientific endeavor. Herbarium is a fascinating enquiry into this unique field of plant biology, exploring how herbaria emerged and have changed over time, who promoted and contributed to them, and why they remain such an important source of data for their new role: understanding how the world’s flora is changing. Barbara Thiers, director of the William and Lynda Steere Herbarium at the New York Botanical Garden, also explains how recent innovations that allow us to see things at both the molecular level and on a global scale can be applied to herbaria specimens, helping us address some of the most critical problems facing the world today.
Author | : A. E. Radford |
Publisher | : |
Total Pages | : |
Release | : |
Genre | : |
ISBN | : |
Download Vascular Plants Systems Book in PDF, ePub and Kindle
Author | : Robin W. Doughty |
Publisher | : Texas A&M University Press |
Total Pages | : 273 |
Release | : 2019-02-14 |
Genre | : Nature |
ISBN | : 162349706X |
Download Unnatural Texas? Book in PDF, ePub and Kindle
The story of introduced species in Texas is long (hogs were introduced by European settlers in the 1500s) and fraught with controversy. In Unnatural Texas? The Invasive Species Dilemma, Robin W. Doughty and Matt Warnock Turner introduce the “big hitters” of invasive species in the state. They profile the usual suspects—feral hogs, salt cedar, and fire ants—and also lesser known invasives, such as cats and sparrows. Blending natural and environmental history with geography, this book is a much-needed, balanced exploration of invasive species in Texas. The distinctions between native and invasive are not hard and fast, and perceptions of what is invasive have changed over the centuries. A striking example, free-ranging cats—domestic, stray, and feral—can wreak havoc on small mammal and bird populations. There is not a one-size-fits-all solution for invasives, and removal or complete eradication may not be possible or even desirable. The dilemma of what to do about invasive species also raises moral, social, economic, and cultural questions. This engaging introduction to the concept of invasive species in Texas will provide context for readers and will educate people on this important issue facing the state.
Author | : Boris Rozin |
Publisher | : BrownWalker Press |
Total Pages | : 186 |
Release | : 2020-08-01 |
Genre | : Science |
ISBN | : 1627347488 |
Download Double Helix of Phyllotaxis Book in PDF, ePub and Kindle
This book is devoted to anyone who is in search of beauty in mathematics, and mathematics in the beauty around us. Attempting to combine mathematical rigor and magnificence of the visual perception, the author is presenting the mathematical study of phyllotaxis, the most beautiful phenomenon of the living nature. The distinctive feature of this book is an animation feature that explains the work of mathematical models and the transformation of 3D space. The analysis of the phyllotactic pattern as a system of discrete objects together with the mathematical tools of generalized sequences made it possible to find a universal algorithm for calculating the divergence angle. In addition, it is serving as a new proof of the fundamental theorem of phyllotaxis and analytically confirming well-known formulas obtained intuitively earlier as well as casting some doubts on a few stereotypes existing in mathematical phyllotaxis. The presentation of phyllotaxis morphogenesis as a recursive process allowed the author to formulate the hydraulic model of phyllotaxis morphogenesis and propose a method for its experimental verification. With the help of artificial intelligence, the author offered methodology for the digital measurement of phyllotaxis allowing a transition to a qualitatively new level in the study of plant morphogenesis. Due to the successful combination of mathematical constructions and their visual presentation, the materials of this study are comprehensible to readers with high school advanced mathematical levels.
Author | : Erin Tripp |
Publisher | : University Press of Colorado |
Total Pages | : 177 |
Release | : 2017-02-01 |
Genre | : Nature |
ISBN | : 1607325543 |
Download Field Guide to the Lichens of White Rocks Book in PDF, ePub and Kindle
Field Guide to the Lichens of White Rocks is a careful examination of the lichens that occur at the ecologically important and lichenologically rich urban outcropping of Fox Hills sandstone known as White Rocks Nature Preserve, located in Boulder County, Colorado. This extensively illustrated field guide presents detailed information on the macroscopic and microscopic features needed to identify species, as well as extensive notes on how to differentiate closely related lichens—both those present at White Rocks and those likely to be found elsewhere in western North America. This guide is one of the only complete lichen inventories of a sandstone formation in North America and covers all constituents including the crustose microlichen biota, traditionally excluded from other inventories. A short introduction and glossary equip the reader with basic information on lichen morphology, reproduction, and ecology. Visitors to White Rocks Nature Preserve must schedule staff-led public tours or set up sponsored research projects through the City of Boulder Open Space and Mountain Parks, and there are many other outcroppings of Fox Hills sandstone across the West, making Field Guide to the Lichens of White Rocks a significant resource for anyone interested in this unique environment. This accessible, user-friendly guide will also be valuable to naturalists and lichenologists around the world as well as educators, conservationists, and land managers concerned with the growing significance of open spaces and other protected urban areas throughout North America. The University Press of Colorado gratefully acknowledges the generous support of the University of Colorado Natural History Museum, City of Boulder Parks & Open Spaces, and the Colorado Native Plant Society board and members toward the publication of this book.
Author | : David Yetman |
Publisher | : University of Arizona Press |
Total Pages | : 209 |
Release | : 2020-02-25 |
Genre | : Nature |
ISBN | : 0816540047 |
Download The Saguaro Cactus Book in PDF, ePub and Kindle
The saguaro, with its great size and characteristic shape—its arms stretching heavenward, its silhouette often resembling a human—has become the emblem of the Sonoran Desert of southwestern Arizona and northwestern Mexico. The largest and tallest cactus in the United States, it is both familiar and an object of fascination and curiosity. This book offers a complete natural history of this enduring and iconic desert plant. Gathering everything from the saguaro’s role in Sonoran Desert ecology to its adaptations to the desert climate and its sacred place in Indigenous culture, this book shares precolonial through current scientific findings. The saguaro is charismatic and readily accessible but also decidedly different from other desert flora. The essays in this book bear witness to our ongoing fascination with the great cactus and the plant’s unusual characteristics, covering the saguaro’s: history of discovery, place in the cactus family, ecology, anatomy and physiology, genetics, and ethnobotany. The Saguaro Cactus offers testimony to the cactus’s prominence as a symbol, the perceptions it inspires, its role in human society, and its importance in desert ecology.
Author | : Dan Choffnes |
Publisher | : |
Total Pages | : 0 |
Release | : 2016 |
Genre | : Materia medica, Vegetable |
ISBN | : 9780231166607 |
Download Nature's Pharmacopeia Book in PDF, ePub and Kindle
This beautifully illustrated textbook pairs research on the biochemical properties and physiological effects of medicinal plants with a history of the ways in which humans have cultivated plant species and investigated their effects. Nature's Pharmacopeia fosters an appreciation of the chemistry and cultural resonance of herbal medicine.
Author | : Kerry G. Brock |
Publisher | : BRIT Press |
Total Pages | : 274 |
Release | : 2013 |
Genre | : Health & Fitness |
ISBN | : 1889878405 |
Download The Hunter-gatherer Within Book in PDF, ePub and Kindle
"We want to examine what the scientific evidence suggests is really going on when we eat food, and how we can eat and live in a way that best gives us the health benefits of a hunter-gatherer lifestyle while living in and enjoying the advantages of the modern world. We also hope to use the evidence to explore how we can increase our chances of avoiding chronic diseases, obesity, and other health problems -- the "Diseases of Civilization."--P. 7.