The South Texas Sand Sheet, also known as the Coastal Sand Plains and the Llano Mesteño, is a vast region covering more than two million acres at the southern tip of the state, just north of the Lower Rio Grande Valley. The landscape’s distinctive feature is the dunes created from sheets of sand blown inland from the shoreline of an ancient sea. Highly diverse native plant communities help make it one of the state’s most cherished ecological regions as well as the premier hunting region in the world for northern bobwhites. The Sand Sheet is a constantly shifting semi-arid landscape, shaped by wind, ranching, energy production, and, increasingly, by growing urban populations surrounding the region. Organized with the nonbotanist or beginning-level botanist in mind, A Photographic Guide to the Vegetation of the South Texas Sand Sheet includes 200 of the most common grasses, flowering plants, vines, cacti, and woody plants of the South Texas Sand Sheet, 56 of which are species endemic to Texas and 15 of which can only be found in this region. Species are grouped by physical appearance, allowing budding naturalists, landowners, and students to find a specific plant without needing to first understand how families and species are grouped scientifically. Each plant entry includes a representative sampling of photos for that species, showing how it might look from a distance, up close, and at different stages of its life cycle. This handy snapshot of plant life in the South Texas Sand Sheet will enable anyone to easily identify Sand Sheet plants, learn more about their uses, and understand their value to the region.

There are over 281 species of woody plants and 32 species of cacti in the South Texas ecological region. The vast majority of these are found in the lower Rio Grande Valley, which is part of the subtropical Tamaulipan biotic province. Many of the plant species in this area reach their northernmost boundary here. The 44 plants described in this guide represent an estimated 75% of the overall brush biomass of the South Texas ecological region, excluding the lower Rio Grande Valley. The plants are grouped into thorned and thornless categories and alphabetized by family. Distinguishing characteristics have been italicized for easy reference. Similar species are also noted. In this guide, plants are not ranked by importance because their value to animals can differ from ranch to ranch, depending on the plant's availability and the ranch's location, soil type, and land management practices. In case a plant is not found in this guide or more information is desired, a list of additional references is included.

"Field guide to grasses of the South Texas Plains and adjacent Gulf prairies and marshes; includes detailed keys, descriptions, and color photographs. A reference for grass identification in Texas, the southwestern United States, and northern Mexico"--Provided by publisher.

This classroom resource provides clear, concise scientific information in an understandable and enjoyable way about water and aquatic life. Spanning the hydrologic cycle from rain to watersheds, aquifers to springs, rivers to estuaries, ample illustrations promote understanding of important concepts and clarify major ideas. Aquatic science is covered comprehensively, with relevant principles of chemistry, physics, geology, geography, ecology, and biology included throughout the text. Emphasizing water sustainability and conservation, the book tells us what we can do personally to conserve for the future and presents job and volunteer opportunities in the hope that some students will pursue careers in aquatic science. Texas Aquatic Science, originally developed as part of a multi-faceted education project for middle and high school students, can also be used at the college level for non-science majors, in the home-school environment, and by anyone who educates kids about nature and water. To learn more about The Meadows Center for Water and the Environment, sponsors of this book's series, please click here.

The purpose of this manual is to provide clear and helpful information for maintaining gravel roads. Very little technical help is available to small agencies that are responsible for managing these roads. Gravel road maintenance has traditionally been "more of an art than a science" and very few formal standards exist. This manual contains guidelines to help answer the questions that arise concerning gravel road maintenance such as: What is enough surface crown? What is too much? What causes corrugation? The information is as nontechnical as possible without sacrificing clear guidelines and instructions on how to do the job right.

Popular Science gives our readers the information and tools to improve their technology and their world. The core belief that Popular Science and our readers share: The future is going to be better, and science and technology are the driving forces that will help make it better.

A Field Guide to the Woody and Flowering Species Covering the almost three million acres of southernmost Texas known as the Lower Rio Grande Valley, this user-friendly guide is an essential reference for nature enthusiasts, farmers and ranchers, professional botanists, and anyone interested in the plant life of Texas. Alfred Richardson and Ken King offer abundant photographs and short descriptions of more than eight hundred species of ferns, algae, and woody and herbaceous plants—two-thirds of the species that occur in this region. Plants of Deep South Texas opens with a brief introduction to the region and an illustrated guide to leaf shapes and flower parts. The book's individual species accounts cover: Leaves Flowers Fruit Blooming period Distribution Habits Common and scientific names In addition, the authors' comments include indispensible information that cannot be seen in a photograph, such as the etymology of the scientific name, the plant's use by caterpillars and its value from the human perspective. The authors also provide a glossary of terms, as well as an appendix of butterfly and moth species mentioned in the text.

Comprehensive manual for understanding and carrying out marine mammal rescue activities for stranded seals, manatees, dolphins, whales, or sea otters.