A Glimpse Into a Late Pleistocene Hyena Den
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The Impact of Large Terrestrial Carnivores on Pleistocene Ecosystems Blaire Van Valkenburgh, Matthew W
The impact of large terrestrial carnivores on SPECIAL FEATURE Pleistocene ecosystems Blaire Van Valkenburgha,1, Matthew W. Haywardb,c,d, William J. Ripplee, Carlo Melorof, and V. Louise Rothg aDepartment of Ecology and Evolutionary Biology, University of California, Los Angeles, CA 90095; bCollege of Natural Sciences, Bangor University, Bangor, Gwynedd LL57 2UW, United Kingdom; cCentre for African Conservation Ecology, Nelson Mandela Metropolitan University, Port Elizabeth, South Africa; dCentre for Wildlife Management, University of Pretoria, Pretoria, South Africa; eTrophic Cascades Program, Department of Forest Ecosystems and Society, Oregon State University, Corvallis, OR 97331; fResearch Centre in Evolutionary Anthropology and Palaeoecology, School of Natural Sciences and Psychology, Liverpool John Moores University, Liverpool L3 3AF, United Kingdom; and gDepartment of Biology, Duke University, Durham, NC 27708-0338 Edited by Yadvinder Malhi, Oxford University, Oxford, United Kingdom, and accepted by the Editorial Board August 6, 2015 (received for review February 28, 2015) Large mammalian terrestrial herbivores, such as elephants, have analogs, making their prey preferences a matter of inference, dramatic effects on the ecosystems they inhabit and at high rather than observation. population densities their environmental impacts can be devas- In this article, we estimate the predatory impact of large (>21 tating. Pleistocene terrestrial ecosystems included a much greater kg, ref. 11) Pleistocene carnivores using a variety of data from diversity of megaherbivores (e.g., mammoths, mastodons, giant the fossil record, including species richness within guilds, pop- ground sloths) and thus a greater potential for widespread habitat ulation density inferences based on tooth wear, and dietary in- degradation if population sizes were not limited. -
Molecular and Functional Evolution of Hemoglobin in Perissodactyl
Molecular and functional evolution of hemoglobin in perissodactyl mammals (equids, tapirs, and rhinos) by Margaret Clapin A thesis submitted to the Faculty of Graduate Studies of the University of Manitoba in partial fulfillment of the requirements for the degree of Master of Science Department of Biological Sciences University of Manitoba Winnipeg, Manitoba Canada © 2019 Abstract: In this thesis, the oxygen binding characteristics of recombinant hemoglobin (Hb) isoforms (HbA [α2β2] and HbA2 [α2δ2]) from the extinct woolly rhinoceros (Coelodonta antiquitatis) are compared with Sumatran rhino (Dicerorhinus sumatrensis) and black rhino (Diceros bicornis) Hb. The major Hb component (HbA) of horses (Equus caballus) was also examined, as its blood O2 affinity has a low thermal sensitivity. This trait is commonly associated with cold-adaptation as it permits O2 to be offloaded at the cool peripheral tissues of regionally endothermic mammals, though the mechanism(s) by which the oxygenation enthalpy is reduced in horse Hb is unknown. It was hypothesized that the woolly rhino Hb isoforms would have similarly low thermal sensitivities to that of horses, either through enhanced effector binding or by altering the energetic transition from the tense to the relaxed state of hemoglobin. To test this hypothesis the hemoglobin coding sequences for each of the above species were determined and their Hb isoforms expressed using E. coli and purified. Oxygen equilibrium curves were then determined in the presence and absence of allosteric effectors at 25 and 37°C. Horse HbA had a low sensitivity to 2,3- diphosphoglycerate (DPG), though its low temperature sensitivity was primarily driven by increased DPG binding at the lower test temperature. -
Reconstruction of Phylogenetic History to Resolve the Subspecies Anomaly of Pantherine Cats
bioRxiv preprint doi: https://doi.org/10.1101/082891; this version posted October 24, 2016. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. Title: Reconstruction of phylogenetic history to resolve the subspecies anomaly of Pantherine cats Authors: Ranajit Das1, Priyanka Upadhyai2 1Manipal Centre for Natural Sciences, Manipal University, Manipal, Karnataka 576104, India 2Department of Medical Genetics, Kasturba Medical College, Manipal University, Manipal, Karnataka 576104, India Email address: [email protected] Running title: Mitogenome phylogeny of Pantherine cats Abstract All charismatic big cats including tiger (Panthera tigris), lion (Panthera leo), leopard (Panthera pardus), snow leopard (Panthera uncial), and jaguar (Panthera onca) are grouped into the subfamily Pantherinae. Several mitogenomic approaches have been employed to reconstruct the phylogenetic history of the Pantherine cats but the phylogeny has remained largely unresolved till date. One of the major reasons for the difficulty in resolving the phylogenetic tree of Pantherine cats is the small sample size. While previous studies included only 5-10 samples, we have used 43 publically available taxa to reconstruct Pantherine phylogenetic history. Complete mtDNA sequences were used from all individuals excluding the control region (15,489bp). A Bayesian MCMC approach was employed to investigate the divergence times among different Pantherine clades. Both maximum likelihood and Bayesian phylogeny generated a dendrogram: Neofelis nebulosa (Panthera tigris (Panthera onca (Panthera uncia (Panthera leo, Panthera pardus)))), grouping lions with leopards and placing snow leopards as an outgroup to this clade. -
Ancient Metaproteomics: a Novel Approach for Understanding Disease And
Ancient metaproteomics: a novel approach for understanding disease and diet in the archaeological record Jessica Hendy PhD University of York Archaeology August, 2015 ii Abstract Proteomics is increasingly being applied to archaeological samples following technological developments in mass spectrometry. This thesis explores how these developments may contribute to the characterisation of disease and diet in the archaeological record. This thesis has a three-fold aim; a) to evaluate the potential of shotgun proteomics as a method for characterising ancient disease, b) to develop the metaproteomic analysis of dental calculus as a tool for understanding both ancient oral health and patterns of individual food consumption and c) to apply these methodological developments to understanding individual lifeways of people enslaved during the 19th century transatlantic slave trade. This thesis demonstrates that ancient metaproteomics can be a powerful tool for identifying microorganisms in the archaeological record, characterising the functional profile of ancient proteomes and accessing individual patterns of food consumption with high taxonomic specificity. In particular, analysis of dental calculus may be an extremely valuable tool for understanding the aetiology of past oral diseases. Results of this study highlight the value of revisiting previous studies with more recent methodological approaches and demonstrate that biomolecular preservation can have a significant impact on the effectiveness of ancient proteins as an archaeological tool for this characterisation. Using the approaches developed in this study we have the opportunity to increase the visibility of past diseases and their aetiology, as well as develop a richer understanding of individual lifeways through the production of molecular life histories. iii iv List of Contents Abstract ............................................................................................................................... -
Timeline of the Evolutionary History of Life
Timeline of the evolutionary history of life This timeline of the evolutionary history of life represents the current scientific theory Life timeline Ice Ages outlining the major events during the 0 — Primates Quater nary Flowers ←Earliest apes development of life on planet Earth. In P Birds h Mammals – Plants Dinosaurs biology, evolution is any change across Karo o a n ← Andean Tetrapoda successive generations in the heritable -50 0 — e Arthropods Molluscs r ←Cambrian explosion characteristics of biological populations. o ← Cryoge nian Ediacara biota – z ← Evolutionary processes give rise to diversity o Earliest animals ←Earliest plants at every level of biological organization, i Multicellular -1000 — c from kingdoms to species, and individual life ←Sexual reproduction organisms and molecules, such as DNA and – P proteins. The similarities between all present r -1500 — o day organisms indicate the presence of a t – e common ancestor from which all known r Eukaryotes o species, living and extinct, have diverged -2000 — z o through the process of evolution. More than i Huron ian – c 99 percent of all species, amounting to over ←Oxygen crisis [1] five billion species, that ever lived on -2500 — ←Atmospheric oxygen Earth are estimated to be extinct.[2][3] Estimates on the number of Earth's current – Photosynthesis Pong ola species range from 10 million to 14 -3000 — A million,[4] of which about 1.2 million have r c been documented and over 86 percent have – h [5] e not yet been described. However, a May a -3500 — n ←Earliest oxygen 2016 -
3.4 ORDER CARNIVORA Bowdich, 1821
3.4 ORDER CARNIVORA Bowdich, 1821 3.4.1 Family Ursidae Fischer, 1817 There are eight species of bears in the world: - American Black Bear Ursus americanus - Brown Bear Ursus arctos - Polar Bear Ursus maritimus - Sloth Bear Melursus ursinus - Spectacled Bear Tremarctos ornatus - Giant Panda Ailuropoda melanoleuca - Asiatic Black Bear Ursus thibetanus - Malayan Sun Bear Helarctos malayanus The last two species are the only members of the family Ursidae known in Southeast Asia. They differ from each other by their furs and body sizes and both are threatened with extinction (Nowak, 1991; Corbet & Hill 1992). Bears have relatively undeveloped carnassial teeth; narrow premolars, crushing molars with flat crowns and large robust canines. 127 3.4.1.1 Subfamily Ursinae Fischer, 1817, Plate 3(A1 to B3) As mentioned above, two genera and two species represent the subfamily Ursinae in Southeast Asia, namely: - Malayan Sun Bear (Figure 3.8, A), Ursus/Helarctos malayanus (Raffles, 1821) with the scientific name Ursu and synonym Helarctos is distributed in the south west of China, Assam, Myanmar, Vietnam, Peninsular Malaysia, to the islands of Sumatra and Borneo. It is the smallest of all bears found in the tropical rainforests of Southeast Asia. - Asiatic Black Bear (Figure 3.8, B), Ursus thibetanus Cuvier, 1823 is mainly localized in the Himalayas, Afghanistan to southern China, Myanmar, northern Thailand and Indochina. It has several alternative names including Asiatic Black Bear, Himalayan Black Bear, Moon Bear and inhabits mountain forests. Figure 3.8 Malayan Sun Bear (A) and Asiatic Black Bear (B) in Zoo Negara, Malaysia National Zoological Park. -
Late Pleistocene Panthera Leo Spelaea (Goldfuss, 1810) Skeletons
Late Pleistocene Panthera leo spelaea (Goldfuss, 1810) skeletons from the Czech Republic (central Europe); their pathological cranial features and injuries resulting from intraspecific fights, conflicts with hyenas, and attacks on cave bears CAJUS G. DIEDRICH The world’s first mounted “skeletons” of the Late Pleistocene Panthera leo spelaea (Goldfuss, 1810) from the Sloup Cave hyena and cave bear den in the Moravian Karst (Czech Republic, central Europe) are compilations that have used bones from several different individuals. These skeletons are described and compared with the most complete known skeleton in Europe from a single individual, a lioness skeleton from the hyena den site at the Srbsko Chlum-Komín Cave in the Bohemian Karst (Czech Republic). Pathological features such as rib fractures and brain-case damage in these specimens, and also in other skulls from the Zoolithen Cave (Germany) that were used for comparison, are indicative of intraspecific fights, fights with Ice Age spotted hyenas, and possibly also of fights with cave bears. In contrast, other skulls from the Perick and Zoolithen caves in Germany and the Urșilor Cave in Romania exhibit post mortem damage in the form of bites and fractures probably caused either by hyena scavenging or by lion cannibalism. In the Srbsko Chlum-Komín Cave a young and brain-damaged lioness appears to have died (or possibly been killed by hyenas) within the hyena prey-storage den. In the cave bear dominated bone-rich Sloup and Zoolithen caves of central Europe it appears that lions may have actively hunted cave bears, mainly during their hibernation. Bears may have occasionally injured or even killed predating lions, but in contrast to hyenas, the bears were herbivorous and so did not feed on the lion car- casses. -
Migration: on the Move in Alaska
National Park Service U.S. Department of the Interior Alaska Park Science Alaska Region Migration: On the Move in Alaska Volume 17, Issue 1 Alaska Park Science Volume 17, Issue 1 June 2018 Editorial Board: Leigh Welling Jim Lawler Jason J. Taylor Jennifer Pederson Weinberger Guest Editor: Laura Phillips Managing Editor: Nina Chambers Contributing Editor: Stacia Backensto Design: Nina Chambers Contact Alaska Park Science at: [email protected] Alaska Park Science is the semi-annual science journal of the National Park Service Alaska Region. Each issue highlights research and scholarship important to the stewardship of Alaska’s parks. Publication in Alaska Park Science does not signify that the contents reflect the views or policies of the National Park Service, nor does mention of trade names or commercial products constitute National Park Service endorsement or recommendation. Alaska Park Science is found online at: www.nps.gov/subjects/alaskaparkscience/index.htm Table of Contents Migration: On the Move in Alaska ...............1 Future Challenges for Salmon and the Statewide Movements of Non-territorial Freshwater Ecosystems of Southeast Alaska Golden Eagles in Alaska During the A Survey of Human Migration in Alaska's .......................................................................41 Breeding Season: Information for National Parks through Time .......................5 Developing Effective Conservation Plans ..65 History, Purpose, and Status of Caribou Duck-billed Dinosaurs (Hadrosauridae), Movements in Northwest -
Investigating Sexual Dimorphism in Ceratopsid Horncores
University of Calgary PRISM: University of Calgary's Digital Repository Graduate Studies The Vault: Electronic Theses and Dissertations 2013-01-25 Investigating Sexual Dimorphism in Ceratopsid Horncores Borkovic, Benjamin Borkovic, B. (2013). Investigating Sexual Dimorphism in Ceratopsid Horncores (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/26635 http://hdl.handle.net/11023/498 master thesis University of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission. Downloaded from PRISM: https://prism.ucalgary.ca UNIVERSITY OF CALGARY Investigating Sexual Dimorphism in Ceratopsid Horncores by Benjamin Borkovic A THESIS SUBMITTED TO THE FACULTY OF GRADUATE STUDIES IN PARTIAL FULFILMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF SCIENCE DEPARTMENT OF BIOLOGICAL SCIENCES CALGARY, ALBERTA JANUARY, 2013 © Benjamin Borkovic 2013 Abstract Evidence for sexual dimorphism was investigated in the horncores of two ceratopsid dinosaurs, Triceratops and Centrosaurus apertus. A review of studies of sexual dimorphism in the vertebrate fossil record revealed methods that were selected for use in ceratopsids. Mountain goats, bison, and pronghorn were selected as exemplar taxa for a proof of principle study that tested the selected methods, and informed and guided the investigation of sexual dimorphism in dinosaurs. Skulls of these exemplar taxa were measured in museum collections, and methods of analysing morphological variation were tested for their ability to demonstrate sexual dimorphism in their horns and horncores. -
Captive Breeding of Mammals - Marco Masseti
BIODIVERSITY CONSERVATION AND HABITAT MANAGEMENT – Vol. II – Captive Breeding of Mammals - Marco Masseti CAPTIVE BREEDING OF MAMMALS Marco Masseti Dipartimento di Biologia Animale e Genetica, Laboratori di Antropologia, Università di Firenze, Firenze, Italy Keywords: captive breeding, domestic mammals, threatened wild mammals, zoological gardens, arks, museums. Contents 1. Introduction 2. Captive breeding of mammals. The domestic species. 3. Selective breeding 4. Captive breeding of non-domestic species as a conservation strategy. 5. Captive breeding of threatened species 6. Captive breeding of threatened micromammals 7. Captive breeding and reintroduction of carnivores 8. Case studies 8.1 The Arabian Oryx Programme 8.2 The Case Of The Fallow Deer 9. Perspectives Bibliography Biographical Sketch 1. Introduction Mammals are currently among the main victims of human depredations on the environment. A huge amount of species and subspecies have disappeared to date, revealing human exploitation of natural resources as a long lasting process beginning in prehistorical periods and lasting until historical times. In the late Pleistocene, for example, the modern mammalian fauna assemblages of the Western Palaearctic Region were already defined. They would have yet comprised the totality of the species still surviving today, if some extinctions had not mainly affected large terrestrial mammals between 15.000UNESCO and 10.000 years BP, such –as the EOLSS mammoth (Mammuthus primigenius Blumenbach, 1803), the cave bear (Ursus spelaeus Rosenmuller & Heinroth, 1794), the woolly rhinoceros (Coelodonta antiquitatis Blumenbach, 1803), the giant deer (Megaloceros giganteus Berckhemer, 1910), and others. All these extinctions were without replacementSAMPLE by ecologically similar species:CHAPTERS for large mammals - i.e. species exceeding about 40 kg mean adult body weight - it has been estimated that Europe lost approximately 7 out of 24 genera (i.e. -
Pleistocene Cave Hyenas in the Iberian Peninsula: New Insights from Los Aprendices Cave (Moncayo, Zaragoza)
Palaeontologia Electronica palaeo-electronica.org Pleistocene cave hyenas in the Iberian Peninsula: New insights from Los Aprendices cave (Moncayo, Zaragoza) Víctor Sauqué, Raquel Rabal-Garcés, Joan Madurell-Malaperia, Mario Gisbert, Samuel Zamora, Trinidad de Torres, José Eugenio Ortiz, and Gloria Cuenca-Bescós ABSTRACT A new Pleistocene paleontological site, Los Aprendices, located in the northwest- ern part of the Iberian Peninsula in the area of the Moncayo (Zaragoza) is presented. The layer with fossil remains has been dated by amino acid racemization to 143.8 ± 38.9 ka (earliest Late Pleistocene or latest Middle Pleistocene). Five mammal species have been identified in the assemblage: Crocuta spelaea (Goldfuss, 1823) Capra pyre- naica (Schinz, 1838), Lagomorpha indet, Arvicolidae indet and Galemys pyrenaicus (Geoffroy, 1811). The remains of C. spelaea represent a mostly complete skeleton in anatomical semi-connection. The hyena specimen represents the most complete skel- eton ever recovered in Iberia and one of the most complete remains in Europe. It has been compared anatomically and biometrically with both European cave hyenas and extant spotted hyenas. In addition, a taphonomic study has been carried out in order to understand the origin and preservation of these exceptional remains. The results sug- gest rapid burial with few scavenging modifications putatively produced by a medium sized carnivore. A review of the Pleistocene Iberian record of Crocuta spp. has been carried out, enabling us to establish one of the earliest records of C. spelaea in the recently discovered Los Aprendices cave, and also showing that the most extensive geographical distribution of this species occurred during the Late Pleistocene (MIS4- 2). -
Prey Preference and Dietary Overlap of Sympatric Snow Leopard and Tibetan Wolf in Central Part of Wangchuck Centennial National Park
Prey Preference and Dietary overlap of Sympatric Snow leopard and Tibetan Wolf in Central Part of Wangchuck Centennial National Park Yonten Jamtsho Wangchuck Centennial National Park Department of Forest and Park Services Ministry of Agriculture and Forest 2017 Abstract Snow leopards have been reported to kill livestock in most parts of their range but the extent of this predation and its impact on local herders is poorly understood. There has been even no effort in looking at predator-prey relationships and often we make estimates of prey needs based on studies from neighboring regions. Therefore this study is aimed at analysing livestock depredation, diets of snow leopard and Tibetan wolf and its implication to herder’s livelihood in Choekhortoe and Dhur region of Wangchuck Cetennial National Park. Data on the livestock population, frequency of depredation, and income lost were collected from a total of 38 respondents following census techniques. In addition scats were analysed to determine diet composition and prey preferences. The results showed 38 herders rearing 2815 heads of stock with average herd size of 74.07 stocks with decreasing trend over the years due to depredation. As a result Choekhortoe lost 8.6% while Dhur lost 5.07% of total annual income. Dietary analysis showed overlap between two species indicated by Pianka index value of 0.83 for Dhur and 0.96 for Choekhortoe. The prey preference for snow leopard and Tibetan wolf are domestic sheep and blue sheep respectively, where domestic sheep is an income for herders and blue sheep is important for conservation of snow leopard.