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Endangered and Threatened Wildlife and Plants - Acuna Cactus - Fickeisen Plains Cactus - Critical Habitat (US Fish and Wildlife Service Regulation) (FWS) (2018 Edition) The Law Library presents the complete text of the Endangered and Threatened Wildlife and Plants - Acuna Cactus - Fickeisen Plains Cactus - Critical Habitat (US Fish and Wildlife Service Regulation) (FWS) (2018 Edition). Updated as of May 29, 2018 We, the U.S. Fish and Wildlife Service (Service), designate critical habitat for the Echinomastus erectocentrus var. acunensis (acuña cactus) and the Pediocactus peeblesianus var. fickeiseniae (Fickeisen plains cactus) under the Endangered Species Act. Critical habitat for the acuña cactus is located in Maricopa, Pima, and Pinal Counties, Arizona, and critical habitat for the Fickeisen plains cactus is located in Coconino and Mohave Counties, Arizona. The effect of this regulation is to designate critical habitat for the acuña cactus and the Fickeisen plains cactus under the Endangered Species Act. This book contains: - The complete text of the Endangered and Threatened Wildlife and Plants - Acuna Cactus - Fickeisen Plains Cactus - Critical Habitat (US Fish and Wildlife Service Regulation) (FWS) (2018 Edition) - A table of contents with the page number of each section
Endangered and Threatened Wildlife and Plants - Designation of Critical Habitat for the Monterey Spineflower (Chorizanthe pungens var. pungens) (US Fish and Wildlife Service Regulation) (FWS) (2018 Edition) The Law Library presents the complete text of the Endangered and Threatened Wildlife and Plants - Designation of Critical Habitat for the Monterey Spineflower (Chorizanthe pungens var. pungens) (US Fish and Wildlife Service Regulation) (FWS) (2018 Edition). Updated as of May 29, 2018 We, the U.S. Fish and Wildlife Service (Service), are designating revised critical habitat for the threatened Monterey spineflower (Chorizanthe pungens var. pungens) under the Endangered Species Act of 1973, as amended (Act). In total, approximately 11,055 acres (ac) (4,475 hectares (ha)) fall within the boundaries of this revised critical habitat designation. The revised critical habitat is located in Santa Cruz and Monterey counties, California. This book contains: - The complete text of the Endangered and Threatened Wildlife and Plants - Designation of Critical Habitat for the Monterey Spineflower (Chorizanthe pungens var. pungens) (US Fish and Wildlife Service Regulation) (FWS) (2018 Edition) - A table of contents with the page number of each section
Endangered and Threatened Species - Reclassifying Tobusch Fishhook Cactus From Endangered to Threatened and Adopting New Scientific Name (US Fish and Wildlife Service Regulation) (FWS) (2018 Edition) The Law Library presents the complete text of the Endangered and Threatened Species - Reclassifying Tobusch Fishhook Cactus From Endangered to Threatened and Adopting New Scientific Name (US Fish and Wildlife Service Regulation) (FWS) (2018 Edition). Updated as of May 29, 2018 We, the U.S. Fish and Wildlife Service (Service), reclassify Tobusch fishhook cactus (Sclerocactus brevihamatus ssp. tobuschii; currently listed as Ancistrocactus tobuschii), from endangered to threatened on the Federal List of Endangered and Threatened Plants. This determination is based on a thorough review of the best available scientific and commercial information, which indicates that the threats to this plant have been reduced to the point that it is no longer in danger of extinction throughout all or a significant portion of its range, but it remains threatened with becoming endangered within the foreseeable future. In addition, we accept the new taxonomic classification for Tobusch fishhook cactus as the subspecies Sclerocactus brevihamatus ssp. tobuschii. This book contains: - The complete text of the Endangered and Threatened Species - Reclassifying Tobusch Fishhook Cactus From Endangered to Threatened and Adopting New Scientific Name (US Fish and Wildlife Service Regulation) (FWS) (2018 Edition) - A table of contents with the page number of each section
Found in a variety of forms, cacti and other succulents have elicited widespread interest and tremendous popularity worldwide. Although the subject of a certain amount of debate, about 10,000 species are recognized as belonging to the succulent group. Of these, an estimated 2,000 are threatened with global extinction in the wild and many more are regionally or nationally threatened mainly due to habitat destruction and collection for international trade.This Action Plan brings together from around the world current information on population status, threats and conservation of this particularly important group of plants. Prepared with conservationists, scientists, governments, protected area managers and grant-awarding bodies in mind, it suggests priorities for action and encourages collaboration among interested parties at all levels.
The Wright fishhook cactus (Sclerocactus wrightiae L.D. Benson) is an endangered cactus species endemic to south-central Utah. Since its listing in 1979 by the U.S. Fish and Wildife Service, the potential impacts of soil disturbance by cattle have become a central focus of management policies and monitoring efforts. However, little to no empirical data has been collected to substantiate the hypothesis that soil disturbance by cattle has direct or indirect negative effects on Wright fishhook cactus growth or reproduction. Over the years, the Bureau of Land Mangement (BLM) and Capitol Reef National Park (CRNP) have invested significant resources documenting cactus populations including several attributes of individual cacti: GPS location, diameter, number of flowers, fruits, or buds, number of stems, and the presence or absence of a cow track within 15 cm of the cactus. While these efforts have been commendable, due to the defining phenological characteristics of this species (flower and filament color) and its short flowering period (April-May) it remains difficult to study and much basic biological information including a range wide population estimate and defined critical habitat remain unknown. Our research had two primary objectives, 1) evalutate the effects of soil disturbance by cattle on reproduction and diameter of the Wright fishhook cactus (Chapters 1 and 2), and 2) explore the use of drones and GIS to define critical habitat and obtain an accurate range wide population estimate (Chapters 3 and 4). In Chapter 1, we analyzed cactus attribute data collected by the BLM at 30 macro-plots representing different levels of soil related cattle disturbance (high, moderate, and low) from 2011-2017. We found no significant association between level of cattle disturbance and flower density or cactus diameter. We did find a significant negative association between flower frequency and increased disturbance. In Chapter 2, we conducted an experimental study where tracks were simulated within 15 cm of cacti at various levels (Ctrl, 1-Track, 2-Track, 4-Tracks, and 4-Tracks Doubled). No significant association was observed between the number of tracks and response in diameter, flower production, fruit production, or seed set. In Chapter 3, we conducted drone flights over 14 macro-plots at three different altitudes above ground level (10 m, 15 m, and 20 m) and found that while the 10 m flights provided the best remotely sensed survey results, drones are not a suitable replacement for ground censuses. In Chapter 4, we used Resource Selection Function to define critical habitat for the Wright fishhook cactus. Our modeling suggests that geology, elevation, and slope are significant factors in defining cactus habitat. Based on the results of our research we conclude that soil disturbance by cattle may not have a significant influence on Wright fishhook cactus populations or dynamics, and that accurate range wide population estimates may be best obtained through ground surveys within the predicted critical habitat.