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Baja California's Sonoran Desert
Baja California’s Sonoran Desert By Debra Valov What is a Desert? It would be difficult to find any one description that scarce and sporadic, with an would fit all of the twenty or so deserts found on our annual average of 12-30 cm (4.7- planet because each one is a unique landscape. 12 inches). There are two rainy seasons, December- While an expanse of scorching hot sand dunes with March and July-September, with the northern the occasional palm oasis is the image that often peninsula dominated by winter rains and the south comes to mind for the word desert, in fact, only by summer rains. Some areas experience both about 10% of the world’s deserts are covered by seasons, while in other areas, such as parts of the sand dunes. The other 90% comprise a wide variety Gulf coast region, rain may fail for years on end. of landscapes, among these cactus covered plains, Permanent above-ground water reserves are scarce foggy coastal slopes, barren salt flats, and high- throughout most of the peninsula but ephemeral, altitude, snow-covered plateaus. However, one seasonal pools and rivers do appear after winter characteristic that all deserts share is aridity—any storms in the north or summer storms (hurricanes place that receives less than 10 inches (25 and thunderstorms—chubascos) in the south. There centimeters) of rain per year is generally considered are also a number of permanent oases, most often to be a desert and the world’s driest deserts average formed where aquifers (subterranean water) rise to less than 10 mm (3/8 in.) annually. -
The Sonoran Desert Borderlands
Geographic Area Information The Sonoran Desert Borderlands Photograph by CampPhoto / iStock / Getty Images Plus ABOUT The United States-Mexico border is roughly 3,219 kilometers (2,000 miles) long, stretching from the coast of the Pacific Ocean to the Gulf of Mexico. The Sonoran Desert is located on both sides of the border and covers more than 258,999 square kilometers (100,000 square miles) in the U.S. states of California and Arizona and the Mexican state of Sonora. The Sororan Desert is a rich, diverse, and delicate ecosystem, home to a highly diverse array of plant and animal species, some of which are critically endangered. Conservation efforts in the Sonoran Desert have involved organizations in both Mexico and the United States working together to connect habitat and migrations paths for animals. HUMAN IMPACTS In this fragile and diverse borderlands ecosystem, one of the most sever human impacts is the existing barrier (a combination of wall and fencing) that marks the U.S.-Mexico border. There is currently no continuous wall or fence marking the border, but there are segments of the border where there is a near-continuous barrier; one such area is the Sonoran Desert. Construction of a border barrier is ongoing, posing additional ecological concerns for the region. But it is not only the wall that impacts the region; the wall brings with it other human impacts, such as light pollution from stadium security flood-lights that illuminate the border at night and destruction of ecosystems as a result of construction, traffic, and patrolling of the border. -
Sonoran Desert GEORGE GENTRY/FWSGEORGE the Sonoran Desert Has 2,000 Endemic Plant Species—More Than Anywhere Else in North America
in the shadow of the wall: borderlands conservation hotspots on the line Borderlands Conservation Hotspot 2. Sonoran Desert GEORGE GENTRY/FWSGEORGE The Sonoran Desert has 2,000 endemic plant species—more than anywhere else in North America. hink deserts are wastelands? A visit to one of the national monuments or national wildlife refuges in the Sonoran Desert could change your mind. These borderlands are teeming with plants and animals impressively adapted to extreme conditions. T During your visit you might encounter a biologist, a volunteer or a local activist in awe of the place and dedicated to protecting it. The Sonoran Desert is so important to the natural heritage of the United States and Mexico that both countries are vested in conservation lands and programs and on a joint mission to preserve it. “A border wall,” says one conservation coalition leader, “harms our mission” (Campbell 2017). The Sonoran Desert is one of the largest intact wild areas mountains, where they find nesting cavities and swoop in the country, 100,387 square miles stretching across the between cactuses and trees to hunt lizards and other prey. southwestern United States and northwestern Mexico. This Rare desert bighorn sheep stick to the steep, rocky slopes of desert is renowned for columnar cactuses like saguaro, organ isolated desert mountain ranges where they keep a watchful pipe and cardón. Lesser known is the fact that the Sonoran eye for predators. One of the most endangered mammals in Desert has more endemic plant species—2,000—than North America, Sonoran pronghorn still occasionally cross anywhere else in North America (Nabhan 2017). -
3 Invasive Species in the Sonoran Desert Region
3 Invasive Species in the Sonoran Desert Region 11 INVASIVE SPECIES IN THE SONORAN DESERT REGION Invasive species are altering the ecosystems of the Sonoran Desert Region. Native plants have been displaced resulting in radically different habitats and food for wildlife. Species like red brome and buffelgrass have become dense enough in many areas to carry fire in the late spring and early summer. Sonoran Desert plants such as saguaros, palo verdes and many others are not fire- adapted and do not survive these fires. The number of non-native species tends to be lowest in natural areas of the Sonoran Desert and highest in the most disturbed and degraded habitats. However, species that are unusually aggressive and well adapted do invade natural areas. In the mid 1900’s, there were approximately 146 non-native plant species (5.7% of the total flora) in the Sonoran Desert. Now non-natives comprise nearly 10% of the Sonoran Desert flora overall. In highly disturbed areas, the majority of species are frequently non-native invasives. These numbers continue to increase. It is crucial that we monitor, control, and eradicate invasive species that are already here. We must also consider the various vectors of dispersal for invasive species that have not yet arrived in Arizona, but are likely to be here in the near future. Early detection and reporting is vital to prevent the spread of existing invasives and keep other invasives from arriving and establishing. This is the premise of the INVADERS of the Sonoran Desert Region program at the Arizona-Sonora Desert Museum. -
Reversal Theory: Understanding the Motivational Styles of Espionage Lydia R
Reversal Theory: Understanding the Motivational Styles of Espionage Lydia R. Wilson Is espionage a question of preference? Are there definite psychologi cal needs that compel individuals to seek satisfaction through spying against the interests of their own country? To address these ques tions, I apply Dr. Michael J. Apter's Reversal Theory (RT) to the espionage or insider threat problem to further our understanding of what may be done-pro actively-to counter what the former u.s. National Counterintelligence Executive calls "the top counterintel ligence challenge to our community."! About the varied application of his theory, Apter writes: New patterns become evident wherever we look, whether our interest is in family relations, violence, humor, risk-taking, leadership, sport, or almost any other topic. As a result, reversal theory is a theory of unusual generality that can act to integrate seemingly unrelated topics into a single overarching and comprehensive framework.2 The application of this versatile theory-that psychologists have applied to topics ranging from smoking cessation to enhancing ath letic performance-may have value for security professionals and the U.S. counterintelligence community. This is because RT may answer questions such as: • What are the basic motives of human beings? • Is there a pattern underlying different types of mental disorder? • Why is it that sometimes people voluntarily do unnecessary things that might harm them? • Why do people sometimes enjoy doing things that are forbid den?3 76 International Journal of Intelligence Ethics, Vol. 3, No. 1 I Spring/Summer 2012 Lydia R. Wilson 77 Goal of this Article The goal of this article is to present a better understanding of the psychology of those who have engaged in espionage-not to di agnose or establish a profile of those who might become a spy. -
North American Deserts Chihuahuan - Great Basin Desert - Sonoran – Mojave
North American Deserts Chihuahuan - Great Basin Desert - Sonoran – Mojave http://www.desertusa.com/desert.html In most modern classifications, the deserts of the United States and northern Mexico are grouped into four distinct categories. These distinctions are made on the basis of floristic composition and distribution -- the species of plants growing in a particular desert region. Plant communities, in turn, are determined by the geologic history of a region, the soil and mineral conditions, the elevation and the patterns of precipitation. Three of these deserts -- the Chihuahuan, the Sonoran and the Mojave -- are called "hot deserts," because of their high temperatures during the long summer and because the evolutionary affinities of their plant life are largely with the subtropical plant communities to the south. The Great Basin Desert is called a "cold desert" because it is generally cooler and its dominant plant life is not subtropical in origin. Chihuahuan Desert: A small area of southeastern New Mexico and extreme western Texas, extending south into a vast area of Mexico. Great Basin Desert: The northern three-quarters of Nevada, western and southern Utah, to the southern third of Idaho and the southeastern corner of Oregon. According to some, it also includes small portions of western Colorado and southwestern Wyoming. Bordered on the south by the Mojave and Sonoran Deserts. Mojave Desert: A portion of southern Nevada, extreme southwestern Utah and of eastern California, north of the Sonoran Desert. Sonoran Desert: A relatively small region of extreme south-central California and most of the southern half of Arizona, east to almost the New Mexico line. -
Baja California´S Sonoran Desert
Baja California’s Sonoran Desert Debra Valov ISSI, August 2015 Objectives • Define “desert” • Explore Baja’s desert • Learn how plants and animals survive http://www.flickr.com/photos/ladigue_99/ Namibia Central Gulf Coast, BCS Erg Awbari Oasis, Libya http://inlinethumb54.webshots.com/9141/2350366 490102347975S600x600Q85.jpg What is a Desert? • Dry – Low rainfall (P<10”) – High evaporation (E>P) – Dessicating winds – Poor soils • Hot or cold (below 0° to over 140°) • Below sea level to more than 8,000 ft What is a Desert? A place where water is severely limiting to life most of the time, where the plants and animals are adapted to chronic aridity and the arid conditions are necessary to maintain the community’s structure. Deserts of the World Source: http://encarta.msn.com/media_461530118/World_Desert_Regions.html North American Deserts Source: www.mbgnet.net/sets/desert/ofworld.htm The Sonoran Desert • Binational (5 states) • ±120, 000 sq. mi. • 0 to 4500 feet • <32° to >130° • 3-15” avg. rainfall Source: Baja California Sur Central Baja California Central Baja California Baja California Sur Central Gulf Coast Baja California Sur “Air plants” (Bromeliads) Pacific Coast Fog Zones Lichens (fungi & algae symbiosis) Central Vizcaino Desert, BCS Vizcaino Desert – Pacific Coast, BCS Mammals • Bobcat and mountain lion © Dennis Kamberg • Coyotes and foxes • Bats and rodents • Pronghorn antelope • Bighorn sheep © Don Getty © 2010 Jaime Morales V, © Christopher L. Christie Copyright © 2010 D. Trotter Reptiles and Amphibians • Horny toads & lizards • Snakes • Frogs & toads Copyright © 2007 Joyce Gross Gerald & Buff Corsi © California Academy of Sciences Crawly Things • Scorpions & spiders • Beetles & bugs • Ants, bees & wasps • Caterpillars Copyright © 2008 Lamphrophil http://bugguide.net/node/view/206296/bgimage Copyright © 2007 Gary MacDonald Cih© 200 G M D ld Birds © Steve Byland 2008 • Hummingbirds • Raptors: hawks & owls • Scavengers • Perching birds ©J. -
Prehistoric & Early Historic Food Crop Diversity
PREHISTORIC & EARLY HISTORIC FOOD CROP DIVERSITY NOURISHING TUCSON, A UNESCO CITY OF GASTRONOMY Edited by Gary Paul Nabhan and Julia Glennon With contributions from Karen Adams, Maribel Alvarez, Martha Ames Burgess, Gay Chanler, Dena Cowan, Michael Diehl, Suzanne Fish, Jesus Garcia, Wendy Hodgson, Jonathan Mabry, Charles Miksicek, Carolyn Niethammer, Roger Pfeuffer, Amadeo Rea, and Rafael Routson de Granade April 2016 Green Paper #2 of the Center for Regional Food Studies University of Arizona College of Social & Behavioral Sciences Tucson, Arizona www.foodstudies.arizona.edu www.azfoodstudies.com Funded by the W.K. Kellogg Foundation Endowment to the Southwest Center INTRODUCTION In December 2015, Tucson, Arizona joined the UNESCO Creave Cies Network as the first City of Gastronomy designated in the U.S. In the months that followed, local, naonal and internaonal aenon was directed to the 4100 year anquity of food culvaon documented in the Tucson Basin —an agricultural tradion as long or longer than that in any metro area north of Mexico. In addion, the UNESCO designaon generated renewed interest in the remarkable survival of diverse food crops and the tradional culinary and horcultural knowledge associated with them. Both the crops themselves and me-tried knowledge for managing them may have enhanced relevance to our food security in the face of climate change. On the same day as the UNESCO designaon, the University of Arizona established the Center of Regional Food Studies to serve as the college’s official partner to the City of Tucson in documenng, researching and educang the public regarding Tucson’s historic foodways and recent innovaons in its food systems. -
World Deserts
HISTORY AND GEOGRAPHY World Deserts Reader Frog in the Australian Outback Joshua tree in the Mojave Desert South American sheepherder Camel train across the Sahara Desert THIS BOOK IS THE PROPERTY OF: STATE Book No. PROVINCE Enter information COUNTY in spaces to the left as PARISH instructed. SCHOOL DISTRICT OTHER CONDITION Year ISSUED TO Used ISSUED RETURNED PUPILS to whom this textbook is issued must not write on any page or mark any part of it in any way, consumable textbooks excepted. 1. Teachers should see that the pupil’s name is clearly written in ink in the spaces above in every book issued. 2. The following terms should be used in recording the condition of the book: New; Good; Fair; Poor; Bad. World Deserts Reader Creative Commons Licensing This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. You are free: to Share—to copy, distribute, and transmit the work to Remix—to adapt the work Under the following conditions: Attribution—You must attribute the work in the following manner: This work is based on an original work of the Core Knowledge® Foundation (www.coreknowledge.org) made available through licensing under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. This does not in any way imply that the Core Knowledge Foundation endorses this work. Noncommercial—You may not use this work for commercial purposes. Share Alike—If you alter, transform, or build upon this work, you may distribute the resulting work only under the same or similar license to this one. With the understanding that: For any reuse or distribution, you must make clear to others the license terms of this work. -
Deadly Sonoran Desert Toad
Deadly Sonoran Desert Toad During the summer monsoon season, Sonoran Desert Toads (Bufo alvarius) are common, nocturnal visitors to yards near water or natural, desert vegetation here in the Sonoran Desert. They emerge after the summer rains in order to feed and breed in large, temporary rain pools. During the rest of the year, Sonoran Desert Toads hibernate underground. These huge toads like to gorge on insects, especially June Beetles, near outdoor lights or lighted windows and doors. Male Sonoran Desert Toads will also get into swimming pools and then call to attract females. Since they are usually unable to escape from the swimming pool, the Sonoran Desert Toads can be found the next morning, usually still alive, sitting grumpily inside the pool filter compartment waiting to be rescued. Determined and persistent, Sonoran Desert Toads are surprisingly difficult to keep out of your yard because they can squeeze under gates, and I've even observed these wily toads climbing both wire fences and wire mesh snake guards. No matter what I do to keep them out, I still find these toads in my Tucson, Arizona yard every summer. I spotted this greenish Sonoran Desert Toad in my yard in early August of 2007. Sonoran Desert Toads were formerly known as Colorado River Toads, but these large toads are not only found near the southern Colorado River, but also in desert areas (mostly in the Sonoran Desert) from southeastern California, northern Mexico, and through southern Arizona to western New Mexico. Sonoran Desert Toads are olive green to brown in color and have lumpy skin, large glandular lumps on their hind legs, golden eyes with horizontally elliptical pupils, large, poison-filled parotoid glands behind their eye and tympanum (circular external ear), and one or more distinctive white tubercles at the corners of their mouth. -
Sahara Mustard Tech Bulletin – ND – SDCWMA
4/6/2020 Sahara Mustard - Brassica tournefortii Sonoran Desert Cooperative Weed Contact Management Area ss ee aa rr cc hh Invasive Species Partners What's Happening How Do I… Publications Sahara Mustard (Brassica tournefortii) Sahara mustard (a.k.a African mustard, wild turnip, mostaza del Sahara, and several other names) is a fast-growing, drought-tolerant winter annual that prefers sandy soils, yet can invade a wide range of soil types [1,2]. Its native range covers most of the Mediterranean coast, middle east, and western central Asia [2]. Its distribution in North American ranges from California and Baja California coast to western Texas, and from southern Utah to southern Sonora (Fig. 2) [2]. The species normally form a basal rosette of divided hairy leaves, which can span more than three feet in wet years [3]. The nearly leafless flowering stems branch profusely and grow to a height of about two feet, creating the appearance of a shrub from a distance. The small light yellow flowers are self-pollinating [4], but out-crossing between individuals likely occurs [5]. Each of the thousands of flowers sets a seed pod. Large plants produce up to 16,000 seeds [6]. Dried plants break off at the base and tumble like Russian thistle (tumbleweed, Salsola tragus), spreading seeds rapidly across the landscape [1]. When wet, the seeds are sticky with mucilage and can be transported long distances by animals and vehicles [7]. Why is it a threat? This winter annual species grows very fast and large when soil moisture is abundant, smothering native herbaceous plants and potentially competing with large shrubs (e.g., creosote bushes) for light and soil moisture. -
Higher Education and National Security: the Targeting of Sensitive, Proprietary and Classified Information on Campuses of Higher Education
U.S. Department of Justice Federal Bureau of Investigation April 2011 Higher Education and National Security: The Targeting of Sensitive, Proprietary and Classified Information on Campuses of Higher Education This white paper was prepared by the Counterintelligence Strategic Partnership Unit of the FBI. This paper is unclassified in its entirety. Foreword This white paper was prepared by the FBI's Counterintelligence Strategic Partnership Unit to provide awareness to administrators, senior researchers, export control offices, and technology transfer offices at higher education institutions about how foreign intelligence services and non- state actors use US colleges and universities to further their intelligence and operational needs. This paper is unclassified and fulfills part of the FBI's goal of building awareness with public and private entities about counterintelligence risks and national security issues. Executive Summary The United States is a society of openness and freedom, values especially central to campuses of higher education. Foreign adversaries and competitors take advantage of that openness and have been doing so for many years. There are foreign nations that seek to improve their economies and militaries by stealing intellectual property from a world technology leader like the United States. There are also foreign adversaries that seek to gain advantages over the United States. These nations use varied means to acquire information and technology to gain political, military, and economic advantages. There are also foreign