Zoologica Fennica
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Selective Foraging on Bromeliads by Andean Bears in the Ecuadorian Pa´Ramo
SHORT COMMUNICATION N DeMay et al. Selective foraging on bromeliads by Andean bears in the Ecuadorian pa´ramo Stephanie M. DeMay1,4, David A. Roon2, locating new resource sites, quality of known sites, Janet L. Rachlow2, and Rodrigo Cisneros3 avoiding predation, temporal variance in resource availability) at multiple scales (Compton et al. 2002, 1Environmental Science Program, University of Idaho, Fortin et al. 2003, Sergio et al. 2003, Bee et al. 2009). Moscow, ID 83844-3006, USA Optimal foraging theory predicts that the resultant 2Department of Fish and Wildlife Sciences, University of foraging patterns will be based on maximizing Idaho, Moscow, ID 83844-1136, USA energy uptake per unit of effort expended (Pyke et al. 3 Departamento de Ciencias Naturales, Universidad 1977, Hamilton and Bunnell 1987). Bailey at al. Te´cnica Particular de Loja, Loja, Ecuador (1996) described a spatial hierarchy for considering foraging behavior and the mechanisms that influence Abstract: The Andean bear (Tremarctos ornatus), decisions. The smallest scale is a bite of food, the only extant ursid in South America, lives in followed by feeding station, patch, feeding site, pa´ramo and montane forest ecosystems and is camp, and home range. Foraging decisions at each classified as vulnerable on the International Union scale have a wide range of ecological consequences, for Conservation of Nature Red List (Goldstein et from defining niche occupancy to affecting patterns al. 2008). In Podocarpus National Park in southern of competition and coexistence and constraining Ecuador, Andean bears exhibit patchy foraging adaptive potential. behavior on Puya eryngioides, a small terrestrial Foraging strategies are particularly interesting in bromeliad. -
New Materials of Chalicotherium Brevirostris (Perissodactyla, Chalicotheriidae)
Geobios 45 (2012) 369–376 Available online at www.sciencedirect.com Original article New materials of Chalicotherium brevirostris (Perissodactyla, Chalicotheriidae) § from the Tunggur Formation, Inner Mongolia Yan Liu *, Zhaoqun Zhang Laboratory of Evolutionary Systematics of Vertebrate, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, 142, Xizhimenwai Street, PO Box 643, Beijing 100044, PR China A R T I C L E I N F O A B S T R A C T Article history: Chalicotherium brevirostris was named by Colbert based on a skull lacking mandibles from the late Middle Received 23 March 2011 Miocene Tunggur Formation, Tunggur, Inner Mongolia, China. Here we describe new mandibular Accepted 6 October 2011 materials collected from the same area. In contrast to previous expectations, the new mandibular Available online 14 July 2012 materials show a long snout, long diastema, a three lower incisors and a canine. C. brevirostris shows some sexual dimorphism and intraspecific variation in morphologic characters. The new materials differ Keywords: from previously described C. cf. brevirostris from Cixian County (Hebei Province) and the Tsaidam Basin, Tunggur which may represent a different, new species close to C. brevirostris. The diagnosis of C. brevirostris is Middle Miocene revised. Chalicotheriinae Chalicotherium ß 2012 Elsevier Masson SAS. All rights reserved. 1. Abbreviations progress in understanding the Tunggur geology and paleontology (Qiu et al., 1988). The most important result of this expedition so far is -
Carnivora from the Late Miocene Love Bone Bed of Florida
Bull. Fla. Mus. Nat. Hist. (2005) 45(4): 413-434 413 CARNIVORA FROM THE LATE MIOCENE LOVE BONE BED OF FLORIDA Jon A. Baskin1 Eleven genera and twelve species of Carnivora are known from the late Miocene Love Bone Bed Local Fauna, Alachua County, Florida. Taxa from there described in detail for the first time include the canid cf. Urocyon sp., the hemicyonine ursid cf. Plithocyon sp., and the mustelids Leptarctus webbi n. sp., Hoplictis sp., and ?Sthenictis near ?S. lacota. Postcrania of the nimravid Barbourofelis indicate that it had a subdigitigrade posture and most likely stalked and ambushed its prey in dense cover. The postcranial morphology of Nimravides (Felidae) is most similar to the jaguar, Panthera onca. The carnivorans strongly support a latest Clarendonian age assignment for the Love Bone Bed. Although the Love Bone Bed local fauna does show some evidence of endemism at the species level, it demonstrates that by the late Clarendonian, Florida had become part of the Clarendonian chronofauna of the midcontinent, in contrast to the higher endemism present in the early Miocene and in the later Miocene and Pliocene of Florida. Key Words: Carnivora; Miocene; Clarendonian; Florida; Love Bone Bed; Leptarctus webbi n. sp. INTRODUCTION can Museum of Natural History, New York; F:AM, Frick The Love Bone Bed Local Fauna, Alachua County, fossil mammal collection, part of the AMNH; UF, Florida Florida, has produced the largest and most diverse late Museum of Natural History, University of Florida. Miocene vertebrate fauna known from eastern North All measurements are in millimeters. The follow- America, including 43 species of mammals (Webb et al. -
Kapitel 5.Indd
Cour. Forsch.-Inst. Senckenberg 256 43–56 4 Figs, 2 Tabs Frankfurt a. M., 15. 11. 2006 Neogene Rhinoceroses of the Linxia Basin (Gansu, China) With 4 fi gs, 2 tabs Tao DENG Abstract Ten genera and thirteen species are recognized among the rhinocerotid remains from the Miocene and Pliocene deposits of the Linxia Basin in Gansu, China. Chilotherium anderssoni is reported for the fi rst time in the Linxia Basin, while Aprotodon sp. is found for the fi rst time in Lower Miocene deposits of the basin. The Late Miocene corresponds to a period of highest diversity with eight species, accompanying very abundant macromammals of the Hipparion fauna. Chilotherium wimani is absolutely dominant in number and present in all sites of MN 10–11 age. Compared with other regions in Eurasia and other ages, elasmotheres are more diversifi ed in the Linxia Basin during the Late Miocene. Coelodonta nihowanensis in the Linxia Basin indicates the known earliest appearance of the woolly rhino. The distribution of the Neogene rhinocerotids in the Linxia Basin can be correlated with paleoclimatic changes. Key words: Neogene, rhinoceros, biostratigraphy, systematic paleontology, Linxia Basin, China Introduction mens of mammalian fossils at Hezheng Paleozoological Museum in Gansu and Institute of Vertebrate Paleontology The Linxia Basin is situated in the northeastern corner of and Paleoanthropology in Beijing. the Tibetan Plateau, in the arid southeastern part ofeschweizerbartxxx Gansusng- Several hundred skulls of the Neogene rhinoceroses Province, China. In this basin, the Cenozoic deposits are are known from the Linxia Basin, but most of them belong very thick and well exposed, and produce abundant mam- to the Late Miocene aceratheriine Chilotherium wimani. -
Browsing and Non-Browsing Extant and Extinct Giraffids Evidence From
Browsing and non-browsing extant and extinct giraffids Evidence from dental microwear textural analysis Gildas Merceron, Marc Colyn, Denis Geraads To cite this version: Gildas Merceron, Marc Colyn, Denis Geraads. Browsing and non-browsing extant and extinct giraffids Evidence from dental microwear textural analysis. Palaeogeography, Palaeoclimatology, Palaeoecol- ogy, Elsevier, 2018, 505, pp.128-139. 10.1016/j.palaeo.2018.05.036. hal-01834854v2 HAL Id: hal-01834854 https://hal-univ-rennes1.archives-ouvertes.fr/hal-01834854v2 Submitted on 6 Sep 2018 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. 1 Browsing and non-browsing extant and extinct giraffids: evidence from dental microwear 2 textural analysis. 3 4 Gildas MERCERON1, Marc COLYN2, Denis GERAADS3 5 6 1 Palevoprim (UMR 7262, CNRS & Université de Poitiers, France) 7 2 ECOBIO (UMR 6553, CNRS & Université de Rennes 1, Station Biologique de Paimpont, 8 France) 9 3 CR2P (UMR 7207, Sorbonne Universités, MNHN, CNRS, UPMC, France) 10 11 1Corresponding author: [email protected] 12 13 Abstract: 14 15 Today, the family Giraffidae is restricted to two genera endemic to the African 16 continent, Okapia and Giraffa, but, with over ten genera and dozens of species, it was far 17 more diverse in the Old World during the late Miocene. -
The Carnivora (Mammalia) from the Middle Miocene Locality of Gračanica (Bugojno Basin, Gornji Vakuf, Bosnia and Herzegovina)
Palaeobiodiversity and Palaeoenvironments https://doi.org/10.1007/s12549-018-0353-0 ORIGINAL PAPER The Carnivora (Mammalia) from the middle Miocene locality of Gračanica (Bugojno Basin, Gornji Vakuf, Bosnia and Herzegovina) Katharina Bastl1,2 & Doris Nagel2 & Michael Morlo3 & Ursula B. Göhlich4 Received: 23 March 2018 /Revised: 4 June 2018 /Accepted: 18 September 2018 # The Author(s) 2018 Abstract The Carnivora (Mammalia) yielded in the coal mine Gračanica in Bosnia and Herzegovina are composed of the caniform families Amphicyonidae (Amphicyon giganteus), Ursidae (Hemicyon goeriachensis, Ursavus brevirhinus) and Mustelidae (indet.) and the feliform family Percrocutidae (Percrocuta miocenica). The site is of middle Miocene age and the biostratigraphical interpretation based on molluscs indicates Langhium, correlating Mammal Zone MN 5. The carnivore faunal assemblage suggests a possible assignement to MN 6 defined by the late occurrence of A. giganteus and the early occurrence of H. goeriachensis and P. miocenica. Despite the scarcity of remains belonging to the order Carnivora, the fossils suggest a diverse fauna including omnivores, mesocarnivores and hypercarnivores of a meat/bone diet as well as Carnivora of small (Mustelidae indet.) to large size (A. giganteus). Faunal similarities can be found with Prebreza (Serbia), Mordoğan, Çandır, Paşalar and Inönü (all Turkey), which are of comparable age. The absence of Felidae is worthy of remark, but could be explained by the general scarcity of carnivoran fossils. Gračanica records the most eastern European occurrence of H. goeriachensis and the first occurrence of A. giganteus outside central Europe except for Namibia (Africa). The Gračanica Carnivora fauna is mostly composed of European elements. Keywords Amphicyon . Hemicyon . -
Morphometric Analyses of Cave Bear Mandibles (Carnivora, Ursidae)
Revue de Paléobiologie, Genève (décembre 2018) 37 (2): 379-393 ISSN 0253-6730 Morphometric analyses of cave bear mandibles (Carnivora, Ursidae) Gennady F. BARYSHNIKOV1*, Andrei Yu. PUZACHENKO2 & Svetlana V. BARYSHNIKOVA1 1 Zoological Institute, Russian Academy of Sciences, Universitetskaya nab. 1, 199034 Saint Petersburg, Russia 2 Institute of Geography, Russian Academy of Sciences, Staromonetnyi per. 29, 109017 Moscow, Russia * Corresponding author: E-mail: [email protected] Abstract Morphometric variability of cave and brown bears and their ancestors (Ursus minimus and U. etruscus) is examined using multivariate statistics based on measurements of 679 mandibles from 90 localities in Northern Eurasia. The variability is dependent on sexual dimorphism in size: it is well seen in big cave bears (U. spelaeus, U. kanivetz = ingressus, U. kudarensis), whose males are nearly 25% larger than females. In the morphological space, we identified two main types of mandibles: the “arctoid” type [U. minimus, U. etruscus, U. arctos, U. rodei (?)], and the “spelaeoid” type (U. spelaeus spelaeus, U. s. eremus, U. kanivetz, U. kudarensis). The intermediate “deningeroid” type includes U. deningeri, U. savini, U. rossicus (males), and U. spelaeus ladinicus. An additional unit is formed by female sample of U. rossicus. The mandible bones are less informative for understanding of cave bear evolution, because in comparison to crania, they have a rather simple shape. Keywords Ursus, cave bears, morphometrics, variations, mandible, evolution, adaptation, Pleistocene. Résumé Analyse morphométrique de la mandibule chez les ours des cavernes. - La variabilité morphométrique des ours des cavernes, des ours bruns et de leurs ancêtres (Ursus minimus et U. etruscus) est étudiée à partir des mesures de 679 mandibules de 90 sites d’Eurasie du nord, à l’aide des méthodes d’analyses statistiques multivariées. -
A Partial Short-Faced Bear Skeleton from an Ozark Cave with Comments on the Paleobiology of the Species
Blaine W. Schubert and James E. Kaufmann - A partial short-faced bear skeleton from an Ozark cave with comments on the paleobiology of the species. Journal of Cave and Karst Studies 65(2): 101-110. A PARTIAL SHORT-FACED BEAR SKELETON FROM AN OZARK CAVE WITH COMMENTS ON THE PALEOBIOLOGY OF THE SPECIES BLAINE W. SCHUBERT Environmental Dynamics, 113 Ozark Hall, University of Arkansas, Fayetteville, AR 72701, and Geology Section, Research and Collections, Illinois State Museum, Springfield, IL 62703 USA JAMES E. KAUFMANN Department of Geology and Geophysics, University of Missouri-Rolla, Rolla, MO 65409 USA Portions of an extinct giant short-faced bear, Arctodus simus, were recovered from a remote area with- in an Ozark cave, herein named Big Bear Cave. The partially articulated skeleton was found in banded silt and clay sediments near a small entrenched stream. The sediment covered and preserved skeletal ele- ments of low vertical relief (e.g., feet) in articulation. Examination of a thin layer of manganese and clay under and adjacent to some skeletal remains revealed fossilized hair. The manganese in this layer is con- sidered to be a by-product of microorganisms feeding on the bear carcass. Although the skeleton was incomplete, the recovered material represents one of the more complete skeletons for this species. The stage of epiphyseal fusion in the skeleton indicates an osteologically immature individual. The specimen is considered to be a female because measurements of teeth and fused postcranial elements lie at the small end of the size range for A. simus. Like all other bears, the giant short-faced bear is sexually dimorphic. -
Growth Trajectories in the Cave Bear and Its Extant
Fuchs et al. BMC Evolutionary Biology (2015) 15:239 DOI 10.1186/s12862-015-0521-z RESEARCH ARTICLE Open Access Growth trajectories in the cave bear and its extant relatives: an examination of ontogenetic patterns in phylogeny Manuela Fuchs, Madeleine Geiger*, Madlen Stange and Marcelo R. Sánchez-Villagra Abstract Background: The study of postnatal ontogeny can provide insights into evolution by offering an understanding of how growth trajectories have evolved resulting in adult morphological disparity. The Ursus lineage is a good subject for studying cranial and mandibular shape and size variation in relation to postnatal ontogeny and phylogeny because it is at the same time not diverse but the species exhibit different feeding ecologies. Cranial and mandibular shapes of Ursus arctos (brown bear), U. maritimus (polar bear), U. americanus (American black bear), and the extinct U. spelaeus (cave bear) were examined, using a three-dimensional geometric morphometric approach. Additionally, ontogenetic series of crania and mandibles of U. arctos and U. spelaeus ranging from newborns to senile age were sampled. Results: The distribution of specimens in morphospace allowed to distinguish species and age classes and the ontogenetic trajectories U. arctos and U. spelaeus were found to be more similar than expected by chance. Cranial shape changes during ontogeny are largely size related whereas the evolution of cranial shape disparity in this clade appears to be more influenced by dietary adaptation than by size and phylogeny. The different feeding ecologies are reflected in different cranial and mandibular shapes among species. Conclusions: The cranial and mandibular shape disparity in the Ursus lineage appears to be more influenced by adaptation to diet than by size or phylogeny. -
Pleistocene Panthera Leo Spelaea
Quaternaire, 22, (2), 2011, p. 105-127 PLEISTOCENE PANTHERA LEO SPELAEA (GOLDFUSS 1810) REMAINS FROM THE BALVE CAVE (NW GERMANY) – A CAVE BEAR, HYENA DEN AND MIDDLE PALAEOLITHIC HUMAN CAVE – AND REVIEW OF THE SAUERLAND KARST LION CAVE SITES n Cajus G. DIEDRICH 1 ABSTRACT Pleistocene remains of Panthera leo spelaea (Goldfuss 1810) from Balve Cave (Sauerland Karst, NW-Germany), one of the most famous Middle Palaeolithic Neandertalian cave sites in Europe, and also a hyena and cave bear den, belong to the most im- portant felid sites of the Sauerland Karst. The stratigraphy, macrofaunal assemblages and Palaeolithic stone artefacts range from the final Saalian (late Middle Pleistocene, Acheulean) over the Middle Palaeolithic (Micoquian/Mousterian), and to the final Palaeolithic (Magdalénien) of the Weichselian (Upper Pleistocene). Most lion bones from Balve Cave can be identified as early to middle Upper Pleistocene in age. From this cave, a relatively large amount of hyena remains, and many chewed, and punctured herbivorous and carnivorous bones, especially those of woolly rhinoceros, indicate periodic den use of Crocuta crocuta spelaea. In addition to those of the Balve Cave, nearly all lion remains in the Sauerland Karst caves were found in hyena den bone assemblages, except those described here material from the Keppler Cave cave bear den. Late Pleistocene spotted hyenas imported most probably Panthera leo spelaea body parts, or scavenged on lion carcasses in caves, a suggestion which is supported by comparisons with other cave sites in the Sauerland Karst. The complex taphonomic situation of lion remains in hyena den bone assemblages and cave bear dens seem to have resulted from antagonistic hyena-lion conflicts and cave bear hunting by lions in caves, in which all cases lions may sometimes have been killed and finally consumed by hyenas. -
Chapter 1 - Introduction
EURASIAN MIDDLE AND LATE MIOCENE HOMINOID PALEOBIOGEOGRAPHY AND THE GEOGRAPHIC ORIGINS OF THE HOMININAE by Mariam C. Nargolwalla A thesis submitted in conformity with the requirements for the degree of Doctor of Philosophy Graduate Department of Anthropology University of Toronto © Copyright by M. Nargolwalla (2009) Eurasian Middle and Late Miocene Hominoid Paleobiogeography and the Geographic Origins of the Homininae Mariam C. Nargolwalla Doctor of Philosophy Department of Anthropology University of Toronto 2009 Abstract The origin and diversification of great apes and humans is among the most researched and debated series of events in the evolutionary history of the Primates. A fundamental part of understanding these events involves reconstructing paleoenvironmental and paleogeographic patterns in the Eurasian Miocene; a time period and geographic expanse rich in evidence of lineage origins and dispersals of numerous mammalian lineages, including apes. Traditionally, the geographic origin of the African ape and human lineage is considered to have occurred in Africa, however, an alternative hypothesis favouring a Eurasian origin has been proposed. This hypothesis suggests that that after an initial dispersal from Africa to Eurasia at ~17Ma and subsequent radiation from Spain to China, fossil apes disperse back to Africa at least once and found the African ape and human lineage in the late Miocene. The purpose of this study is to test the Eurasian origin hypothesis through the analysis of spatial and temporal patterns of distribution, in situ evolution, interprovincial and intercontinental dispersals of Eurasian terrestrial mammals in response to environmental factors. Using the NOW and Paleobiology databases, together with data collected through survey and excavation of middle and late Miocene vertebrate localities in Hungary and Romania, taphonomic bias and sampling completeness of Eurasian faunas are assessed. -
A Bibliography of Klamath Mountains Geology, California and Oregon
U.S. DEPARTMENT OF THE INTERIOR U.S. GEOLOGICAL SURVEY A bibliography of Klamath Mountains geology, California and Oregon, listing authors from Aalto to Zucca for the years 1849 to mid-1995 Compiled by William P. Irwin Menlo Park, California Open-File Report 95-558 1995 This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards (or with the North American Stratigraphic Code). Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. PREFACE This bibliography of Klamath Mountains geology was begun, although not in a systematic or comprehensive way, when, in 1953, I was assigned the task of preparing a report on the geology and mineral resources of the drainage basins of the Trinity, Klamath, and Eel Rivers in northwestern California. During the following 40 or more years, I maintained an active interest in the Klamath Mountains region and continued to collect bibliographic references to the various reports and maps of Klamath geology that came to my attention. When I retired in 1989 and became a Geologist Emeritus with the Geological Survey, I had a large amount of bibliographic material in my files. Believing that a comprehensive bibliography of a region is a valuable research tool, I have expended substantial effort to make this bibliography of the Klamath Mountains as complete as is reasonably feasible. My aim was to include all published reports and maps that pertain primarily to the Klamath Mountains, as well as all pertinent doctoral and master's theses.