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Annual Mass Drownings of the Serengeti Wildebeest Migration Influence Nutrient Cycling and Storage in the Mara River
Annual mass drownings of the Serengeti wildebeest migration influence nutrient cycling and storage in the Mara River Amanda L. Subaluskya,b,1, Christopher L. Duttona,b, Emma J. Rosib, and David M. Posta aDepartment of Ecology and Evolutionary Biology, Yale University, New Haven, CT 06511; and bCary Institute of Ecosystem Studies, Millbrook, NY 12545 Edited by James A. Estes, University of California, Santa Cruz, CA, and approved May 16, 2017 (received for review September 8, 2016) The annual migration of ∼1.2 million wildebeest (Connochaetes taur- hundreds to thousands of bison drowning in rivers of the western inus) through the Serengeti Mara Ecosystem is the largest remaining United States in the late 18th and early 19th centuries when overland migration in the world. One of the most iconic portions of large bison herds were still intact (16, 17). River basins that no their migration is crossing of the Mara River, during which thousands longer contain terrestrial migrations may have lost the annual drown annually. These mass drownings have been noted, but their input of resources from mass drownings, which may fundamen- frequency, size, and impact on aquatic ecosystems have not been tally alter how those river ecosystems function now compared quantified. Here, we estimate the frequency and size of mass drown- with the past. The more well-studied annual migrations of ings in the Mara River and model the fate of carcass nutrients through anadromous fishes and subsequent carcass inputs have been > the river ecosystem. Mass drownings ( 100 individuals) occurred in at shown to be important in rivers (18, 19), but equivalent exami- least 13 of the past 15 y; on average, 6,250 carcasses and 1,100 tons of nation of the influence of terrestrial migrations is lacking. -
Page 5 of the 2020 Antelope, Deer and Elk Regulations
WYOMING GAME AND FISH COMMISSION Antelope, 2020 Deer and Elk Hunting Regulations Don't forget your conservation stamp Hunters and anglers must purchase a conservation stamp to hunt and fish in Wyoming. (See page 6) See page 18 for more information. wgfd.wyo.gov Wyoming Hunting Regulations | 1 CONTENTS Access on Lands Enrolled in the Department’s Walk-in Areas Elk or Hunter Management Areas .................................................... 4 Hunt area map ............................................................................. 46 Access Yes Program .......................................................................... 4 Hunting seasons .......................................................................... 47 Age Restrictions ................................................................................. 4 Characteristics ............................................................................. 47 Antelope Special archery seasons.............................................................. 57 Hunt area map ..............................................................................12 Disabled hunter season extension.............................................. 57 Hunting seasons ...........................................................................13 Elk Special Management Permit ................................................. 57 Characteristics ..............................................................................13 Youth elk hunters........................................................................ -
Wild Or Bactrian Camel French: German: Wildkamel Spanish: Russian: Dikiy Verblud Chinese
1 of 4 Proposal I / 7 PROPOSAL FOR INCLUSION OF SPECIES ON THE APPENDICES OF THE CONVENTION ON THE CONSERVATION OF MIGRATORY SPECIES OF WILD ANIMALS A. PROPOSAL: Inclusion of the Wild camel Camelus bactrianus in Appendix I of the Convention on the Conservation of Migratory Species of Wild Animals: B. PROPONENT: Mongolia C. SUPPORTING STATEMENT 1. Taxon 1.1. Classis: Mammalia 1.2. Ordo: Tylopoda 1.3. Familia: Camelidae 1.4. Genus: Camelus 1.5. Species: Camelus bactrianus Linnaeus, 1758 1.6. Common names: English: Wild or Bactrian camel French: German: Wildkamel Spanish: Russian: Dikiy verblud Chinese: 2. Biological data 2.1. Distribution Wild populations are restricted to 3 small, remnant populations in China and Mongolia:in the Taklamakan Desert, the deserts around Lop Nur, and the area in and around region A of Mongolia’s Great Gobi Strict Protected Area (Reading et al 2000). In addition, there is a small semi-captive herd of wild camels being maintained and bred outside of the Park. 2.2. Population Surveys over the past several decades have suggested a marked decline in wild bactrian camel numbers and reproductive success rates (Zhirnov and Ilyinsky 1986, Anonymous 1988, Tolgat and Schaller 1992, Tolgat 1995). Researchers suggest that fewer than 500 camels remain in Mongolia and that their population appears to be declining (Xiaoming and Schaller 1996). Globally, scientists have recently suggested that less than 900 individuals survive in small portions of Mongolia and China (Tolgat and Schaller 1992, Hare 1997, Tolgat 1995, Xiaoming and Schaller 1996). However, most of the population estimates from both China and Mongolia were made using methods which preclude rigorous population estimation. -
Foot and Mouth Disease Fastfact
Foot and Mouth Disease (FMD) What is foot and mouth How does FMD affect my Who should I contact if I disease and what causes it? animal? suspect FMD? Foot and mouth disease (FMD) is The most common signs of foot Contact your veterinarian a highly contagious viral disease of and mouth disease are fever and immediately. FMD is not currently cloven-hoofed (two-toed) animals (e.g., the formation of blisters, ulcers and found in the United States; suspicion cattle, pigs, sheep). FMD causes painful sores on the mouth, tongue, nose, of the disease requires immediate sores and blisters on the feet, mouth feet, and teats. Foot lesions occur in attention. the area of the coronary band and and teats of animals. between the toes. Infected cattle are How can I protect my animal Foot and mouth disease is a high depressed, reluctant to move, and from FMD? consequence livestock disease due to unwilling or unable to eat, which can To prevent the introduction of FMD, its potential for rapid spread, severe lead to decreased milk production, use strict biosecurity procedures on trade restrictions and the subsequent weight loss, and poor growth. Affected your farm. Isolate any new introductions economic impacts that would result. animals may also have nasal discharge or animal returning to the farm for The disease occurs in parts of Asia, and excessive salivation. Pigs often several weeks before introducing them have sore feet but less commonly into the herd. Minimize visitors on Africa, the Middle East and South develop mouth lesions. Sheep and your farm, especially those that have America, but has been eradicated goats show very mild, if any, signs of traveled from countries with FMD. -
Bactrian Camel, Two-Humped Camel
Camelus ferus/bactrianus Common name: Bactrian camel, two-humped camel Local name: Havtagai (Mongolian), Wildkamel (German), Jya nishpa yapung (Ladakhi) Classification: Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Artiodactyla Family: Camelidae Genus: Camelus Species: ferus/bactrianus Profile: The scientific name of the wild Bactrian camel is Camelus ferus, while the domesticated form is called Camelus bactrianus. The distinctive feature of the animal is that it is two-humped whereas the Dromedary camel has a single hump. DNA tests have revealed that there are two or three distinct genetic differences and about 3% base difference between the wild and domestic populations of Bactrian camels. They also differ physically. The wild Bactrian camel is smaller and slender than the domestic breed. The wild camels have a sandy gray- brown coat while the domestic ones have a dark brown coat. The predominant difference between them however is the shape of the humps. While that of the wild camel are small and pyramid-like, those of the domestic ones are large and irregular. The face of a Bactrian camel is long and triangular with a split upper lip. The Bactrian camel is highly adapted to surviving the cold desert climate. Each foot has an undivided sole with two large toes that can spread wide apart for walking on sand. The ears and nose are lined with hair to protect against sand and the muscular nostrils can be closed during sandstorms. The eyes are protected from sand and debris by a double layer of long eyelashes while bushy eyebrows give protection from the sun. It grows a thick shaggy coat during winter, which is shed very rapidly in spring to give the animal a shorn look. -
Boselaphus Tragocamelus</I>
University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln USGS Staff -- Published Research US Geological Survey 2008 Boselaphus tragocamelus (Artiodactyla: Bovidae) David M. Leslie Jr. U.S. Geological Survey, [email protected] Follow this and additional works at: https://digitalcommons.unl.edu/usgsstaffpub Leslie, David M. Jr., "Boselaphus tragocamelus (Artiodactyla: Bovidae)" (2008). USGS Staff -- Published Research. 723. https://digitalcommons.unl.edu/usgsstaffpub/723 This Article is brought to you for free and open access by the US Geological Survey at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in USGS Staff -- Published Research by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. MAMMALIAN SPECIES 813:1–16 Boselaphus tragocamelus (Artiodactyla: Bovidae) DAVID M. LESLIE,JR. United States Geological Survey, Oklahoma Cooperative Fish and Wildlife Research Unit and Department of Natural Resource Ecology and Management, Oklahoma State University, Stillwater, OK 74078-3051, USA; [email protected] Abstract: Boselaphus tragocamelus (Pallas, 1766) is a bovid commonly called the nilgai or blue bull and is Asia’s largest antelope. A sexually dimorphic ungulate of large stature and unique coloration, it is the only species in the genus Boselaphus. It is endemic to peninsular India and small parts of Pakistan and Nepal, has been extirpated from Bangladesh, and has been introduced in the United States (Texas), Mexico, South Africa, and Italy. It prefers open grassland and savannas and locally is a significant agricultural pest in India. It is not of special conservation concern and is well represented in zoos and private collections throughout the world. DOI: 10.1644/813.1. -
A Giant's Comeback
W INT E R 2 0 1 0 n o s d o D y l l i B Home to elephants, rhinos and more, African Heartlands are conservation landscapes large enough to sustain a diversity of species for centuries to come. In these landscapes— places like Kilimanjaro and Samburu—AWF and its partners are pioneering lasting conservation strate- gies that benefit wildlife and people alike. Inside TH I S ISSUE n e s r u a L a n a h S page 4 These giraffes are members of the only viable population of West African giraffe remaining in the wild. A few herds live in a small AWF Goes to West Africa area in Niger outside Regional Parc W. AWF launches the Regional Parc W Heartland. A Giant’s Comeback t looks like a giraffe, walks like a giraffe, eats totaling a scant 190-200 individuals. All live in like a giraffe and is indeed a giraffe. But a small area—dubbed “the Giraffe Zone”— IGiraffa camelopardalis peralta (the scientific outside the W National Parc in Niger, one of name for the West African giraffe) is a distinct the three national parks that lie in AWF’s new page 6 subspecies of mother nature’s tallest mammal, transboundary Heartland in West Africa (see A Quality Brew having split from a common ancestral popula- pp. 4-5). Conserving the slopes of Mt. Kilimanjaro tion some 35,000 years ago. This genetic Entering the Zone with good coffee. distinction is apparent in its large orange- Located southeast of Niamey, Niger’s brown skin pattern, which is more lightly- capital, the Giraffe Zone spans just a few hun- colored than that of other giraffes. -
The Evolution of Micro-Cursoriality in Mammals
© 2014. Published by The Company of Biologists Ltd | The Journal of Experimental Biology (2014) 217, 1316-1325 doi:10.1242/jeb.095737 RESEARCH ARTICLE The evolution of micro-cursoriality in mammals Barry G. Lovegrove* and Metobor O. Mowoe* ABSTRACT Perissodactyla) in response to the emergence of open landscapes and In this study we report on the evolution of micro-cursoriality, a unique grasslands following the Eocene Thermal Maximum (Janis, 1993; case of cursoriality in mammals smaller than 1 kg. We obtained new Janis and Wilhelm, 1993; Yuanqing et al., 2007; Jardine et al., 2012; running speed and limb morphology data for two species of elephant- Lovegrove, 2012b; Lovegrove and Mowoe, 2013). shrews (Elephantulus spp., Macroscelidae) from Namaqualand, Loosely defined, cursorial mammals are those that run fast. South Africa, which we compared with published data for other However, more explicit definitions of cursoriality remain obscure mammals. Elephantulus maximum running speeds were higher than because locomotor performance is influenced by multiple variables, those of most mammals smaller than 1 kg. Elephantulus also including behaviour, biomechanics, physiology and morphology possess exceptionally high metatarsal:femur ratios (1.07) that are (Taylor et al., 1970; Garland, 1983a; Garland, 1983b; Garland and typically associated with fast unguligrade cursors. Cursoriality evolved Janis, 1993; Stein and Casinos, 1997; Carrano, 1999). In an in the Artiodactyla, Perissodactyla and Carnivora coincident with evaluation of these definition problems, Carrano (Carrano, 1999) global cooling and the replacement of forests with open landscapes argued that ‘…morphology should remain the fundamental basis for in the Oligocene and Miocene. The majority of mammal species, making distinctions between locomotor performance…’. -
Terrain Adaptability Mechanism of Large Ruminants' Feet on The
Hindawi Publishing Corporation Applied Bionics and Biomechanics Volume 2015, Article ID 151686, 9 pages http://dx.doi.org/10.1155/2015/151686 Research Article Terrain Adaptability Mechanism of Large Ruminants’ Feet on the Kinematics View Qun Zhang,1 Xilun Ding,1 and Kun Xu1,2 1 Space Robot Laboratory, School of Mechanical Engineering and Automation, Beihang University, Beijing 100191, China 2State Key Laboratory of Robotics and System, HIT, Harbin 150001, China Correspondence should be addressed to Xilun Ding; [email protected] Received 7 July 2015; Revised 2 November 2015; Accepted 22 November 2015 Academic Editor: Young-Hui Chang Copyright © 2015 Qun Zhang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Ruminants live in various parts of land. Similar cloven hooves assist ruminants in adapting to different ground environment during locomotion. This paper analyzes the general terrain adaptability of the feet of ruminants using kinematics of the equivalent mechanism model based on screw theory. Cloven hooves could adjust attitude by changing relative positions between two digits in swing phase. This function helps to choose better landing orientation. “Grasping” or “holding” a rock or other object on the ground passively provides extra adhesion force in stance phase. Ruminants could adjust the position of the metacarpophalangeal joint or metatarsophalangeal joint (MTP or MCP) with no relative motion between the tip of feet and the ground, which ensures the adhesion and dexterity in stance phase. These functions are derived from an example from chamois’ feet and several assumptions, which are believed to demonstrate the foundation of adaptation of ruminants and ensure a stable and continuous movement. -
The Status and Distribution of Mediterranean Mammals
THE STATUS AND DISTRIBUTION OF MEDITERRANEAN MAMMALS Compiled by Helen J. Temple and Annabelle Cuttelod AN E AN R R E IT MED The IUCN Red List of Threatened Species™ – Regional Assessment THE STATUS AND DISTRIBUTION OF MEDITERRANEAN MAMMALS Compiled by Helen J. Temple and Annabelle Cuttelod The IUCN Red List of Threatened Species™ – Regional Assessment The designation of geographical entities in this book, and the presentation of material, do not imply the expression of any opinion whatsoever on the part of IUCN or other participating organizations, concerning the legal status of any country, territory, or area, or of its authorities, or concerning the delimitation of its frontiers or boundaries. The views expressed in this publication do not necessarily reflect those of IUCN or other participating organizations. Published by: IUCN, Gland, Switzerland and Cambridge, UK Copyright: © 2009 International Union for Conservation of Nature and Natural Resources Reproduction of this publication for educational or other non-commercial purposes is authorized without prior written permission from the copyright holder provided the source is fully acknowledged. Reproduction of this publication for resale or other commercial purposes is prohibited without prior written permission of the copyright holder. Red List logo: © 2008 Citation: Temple, H.J. and Cuttelod, A. (Compilers). 2009. The Status and Distribution of Mediterranean Mammals. Gland, Switzerland and Cambridge, UK : IUCN. vii+32pp. ISBN: 978-2-8317-1163-8 Cover design: Cambridge Publishers Cover photo: Iberian lynx Lynx pardinus © Antonio Rivas/P. Ex-situ Lince Ibérico All photographs used in this publication remain the property of the original copyright holder (see individual captions for details). -
Human Pressure Threaten Swayne's Hartebeest to Point of Local
Research Article Volume 8:1,2020 Journal of Biodiversity and Endangered DOI: 10.24105/2332-2543.2020.8.239 Species ISSN: 2332-2543 Open Access Human Pressure Threaten Swayne’s Hartebeest to Point of Local Extinction from the Savannah Plains of Nech Sar National Park, South Rift Valley, Ethiopia Simon Shibru1*, Karen Vancampenhout2, Jozef Deckers2 and Herwig Leirs3 1Department of Biology, Arba Minch University, Arba Minch, Ethiopia 2Department of Earth and Environmental Sciences, Katholieke Universiteit Leuven, Celestijnenlaan 200E, B-3001 Leuven, Belgium 3Department of Biology, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerpen, Belgium Abstract We investigated the population size of the endemic and endangered Swayne’s Hartebeest (Alcelaphus buselaphus swaynei) in Nech Sar National Park from 2012 to 2014 and document the major threats why the species is on the verge of local extinction. The park was once known for its abundant density of Swayne’s Hartebeest. We used direct total count methods for the census. We administered semi-structured interviews and open-ended questionnaires with senior scouts who are a member of the local communities. Historical records were obtained to evaluate the population trends of the animals since 1974. The density of the animal decreased from 65 in 1974 to 1 individual per 100 km2 in 2014 with a decline of 98.5% in the past 40 years. The respondents agreed that the conservation status of the park was in its worst condition ever now with only 2 Swayne’s Hartebeest left, with a rapid decline from 4 individuals in 2012 and 12 individuals in 2009. Mainly hunting and habitat loss, but also unsuitable season of reproduction and shortage of forage as minor factors were identified as threats for the local extinction of the Swayne’s Hartebeests. -
Rethinking the Evolution of the Human Foot: Insights from Experimental Research Nicholas B
© 2018. Published by The Company of Biologists Ltd | Journal of Experimental Biology (2018) 221, jeb174425. doi:10.1242/jeb.174425 REVIEW Rethinking the evolution of the human foot: insights from experimental research Nicholas B. Holowka* and Daniel E. Lieberman* ABSTRACT presumably owing to their lack of arches and mobile midfoot joints Adaptive explanations for modern human foot anatomy have long for enhanced prehensility in arboreal locomotion (see Glossary; fascinated evolutionary biologists because of the dramatic differences Fig. 1B) (DeSilva, 2010; Elftman and Manter, 1935a). Other studies between our feet and those of our closest living relatives, the great have documented how great apes use their long toes, opposable apes. Morphological features, including hallucal opposability, toe halluces and mobile ankles for grasping arboreal supports (DeSilva, length and the longitudinal arch, have traditionally been used to 2009; Holowka et al., 2017a; Morton, 1924). These observations dichotomize human and great ape feet as being adapted for bipedal underlie what has become a consensus model of human foot walking and arboreal locomotion, respectively. However, recent evolution: that selection for bipedal walking came at the expense of biomechanical models of human foot function and experimental arboreal locomotor capabilities, resulting in a dichotomy between investigations of great ape locomotion have undermined this simple human and great ape foot anatomy and function. According to this dichotomy. Here, we review this research, focusing on the way of thinking, anatomical features of the foot characteristic of biomechanics of foot strike, push-off and elastic energy storage in great apes are assumed to represent adaptations for arboreal the foot, and show that humans and great apes share some behavior, and those unique to humans are assumed to be related underappreciated, surprising similarities in foot function, such as to bipedal walking.