Marmota caligata (Rodentia: Sciuridae).

Mammalian Species 43 (884):155-171.

Abstract:

Marmota caligata (Eschscholtz, 1829), a large ground squirrel commonly called the hoary marmot, is 1 of 15 species of extant marmots. It is distributed in western North America from Alaska and Canada south to Washington and Montana and is found at elevations ranging from sea level to 2,500 m . M . caligata prefers alpine and subalpine boulder piles and talus slopes surrounded by meadows. The species is listed as "Least Concern" by the International Union for Conservation of Nature and Natural Resources, although populations of Montague Island and Glacier Bay are of conservation concern by the State of Alaska.

braun-biblio

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Freitag, 03 September 2021 08:15

BEST, T. L. (1995)

Sciurus variegatoides.

Mammalian Species 500: 1–6, https://doi.org/10.2307/3504282

Der Artikel folgt dem üblichen Schema der "Mammalian Species" Datenblätter mit folgenden Abschnitten:
Context and Content; Diagnosis; General Characters; Distribution; Form and Function; Ontogeny and Reproduction; Ecology; Behavior; Literature.

Es wird vermutet, dass S. variegatoides, S. colliaei und S. yucatanensis eine einzige Art seien:
Sciurus variegatoides, S. colliaei, and S. yucatanensis may be fragmented segments of one species whose geographic range once extended along the Pacific lowlands and uplands from Sonora to southern Guatemala, across eastern Guatemala into the Yucatan Peninsula, and throughout Central America to Panama.

best-biblio

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Mittwoch, 28 Juli 2021 16:12

HICK, U. (1973)

Wir sind umgezogen.

Z. Kölner Zoo 16 (4): 127-145.

Zusammenfassung:

Der Beginn des Aufbaues der Kölner Lemuren-Sammlung fällt in das Frühjahr 1965. Die große Halle, die Verwaltungsgebäude und Insektarium verbindet, wurde als Provisorium für die Unterbringung der Tiere eingerichtet. Im Lauf von achteinhalb Jahren vergrößerte sich der Bestand erheblich. Zu den vom Aussterben bedrohten Lemuren kamen noch einige Exemplare der ebenfalls bedrohten Languren und Sakiaffen dazu. Durch den Bau des neuen "Lemurenhauses" konnten die Tiere die ehemalige "Lemurenstation" verlassen und das neue Haus beziehen. Die Sammlung besteht aus 123 Tieren in 26 Arten bzw. Unterarten. Jede Art bzw. Unterart wird in Foto und Text vorgestellt. Erfahrungen in der Haltung und Beobachtungen der Verhaltensweisen werden angefügt. Wir haben es uns zur Aufgabe gemacht, die bedrohten Madagaskar-Lemuren, wenn möglich, vor dem Artentod zu bewahren. Von unseren 95 Lemuren sind 46 im Kölner Zoo geboren und aufgewachsen.

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A Taxonomic Reassessment of Cacajao melanocephalus Humboldt (1811), with the Description of Two New Species.

International Journal of Primatology 29: 723–741.

Volltext

Abstract

The author of the last published systematic review of Cacajao recognized 2 subspecies of black-headed uakaris (black uakaris): Cacajao melanocephalus melanocephalus and C. m. ouakary. As a result of a series of black uakari surveys and collecting expeditions to several tributaries of the Rio Negro and of morphological and molecular analyses of museum specimens and specimens we collected during field expeditions, we reassess their taxonomy. We describe a newly discovered species of black uakari from the Rio Aracá, a left bank tributary of the Rio Negro, Amazonas, Brazil. We also show that ouakary is a junior synonym of melanocephalus and provide a new name and a new description for Cacajao melanocephalus melanocephalus in the Pico da Neblina region of Brazil and Venezuela. Based on genetic, morphological, and ecological evidence, we propose that there are 3 species of black uakaris. We named the Rio Aracá species Cacajao ayresi sp. nov. (Ayres uakari) in honor of the late José Márcio Ayres, a pioneer in uakari research and conservation. We named the Neblina black uakari Cacajao hosomi, after the Yanomami word for uakaris. The new taxonomic arrangement provided here implies that the conservation status of black uakaris needs to be reassessed.

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Phylogeographic Patterns in Africa and High Resolution Delineation of Genetic Clades in the Lion (Panthera leo).

Sci Rep 6, 30807 (2016). https://doi.org/10.1038/srep30807

Abstract:

Comparative phylogeography of African savannah mammals shows a congruent pattern in which populations in West/Central Africa are distinct from populations in East/Southern Africa. However, for the lion, all African populations are currently classified as a single subspecies (Panthera leo leo), while the only remaining population in Asia is considered to be distinct (Panthera leo persica). This distinction is disputed both by morphological and genetic data. In this study we introduce the lion as a model for African phylogeography. Analyses of mtDNA sequences reveal six supported clades and a strongly supported ancestral dichotomy with northern populations (West Africa, Central Africa, North Africa/Asia) on one branch and southern populations (North East Africa, East/Southern Africa and South West Africa) on the other. We review taxonomies and phylogenies of other large savannah mammals, illustrating that similar clades are found in other species. The described phylogeographic pattern is considered in relation to large scale environmental changes in Africa over the past 300,000 years, attributable to climate. Refugial areas, predicted by climate envelope models, further confirm the observed pattern. We support the revision of current lion taxonomy, as recognition of a northern and a southern subspecies is more parsimonious with the evolutionary history of the lion.

bertola-biblio

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Freitag, 28 Mai 2021 15:53

HECK, L. (1952)

Über den Auerochsen und seine Rückzüchtung.

Jahrbuch des Nassauischen Vereins für Naturkunde 90:107-124

Volltext (PDF)

Der Ur, Auer oder Auerochs (Bos primigenius L.) gehört zu den erst in den letzten Jahrhunderten, und zwar durch menschliche Einwirkung auf der Erde ausgestorbenen großen freilebenden Säugetierarten und hielt sich  bis zum Ausgang des Mittelalters. Nach den Überlieferungen wurde die letzte Auerkuh in diesem Raum im Jahre 1627 in Jaktorowo, einem heute verschwundenen Waldgebiet bei Warschau, erlegt. Damit war eine einst recht häufige Säugetierart ausgerottet, die für die Entwicklung des Menschen von größter Bedeutung war, denn die von diesem Wildtier abstammenden Hausrinder haben zweifellos unsere menschliche Kultur bis heute beeinflußt.

Schon vor mehr als 25 Jahren entstand bei meinem Bruder HEINZ HECK und mir die Frage, ob es möglich wäre, aus heute lebenden Rinderrassen den Auerochsen wieder  neu zu züchten....

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Gene flow between insular, coastal and interior populations of brown bears in Alaska.

Molecular Ecology  7(10): 1283-1292. https://doi.org/10.1046/j.1365-294x.1998.00440.x

Abstract:

The brown bears of coastal Alaska have been recently regarded as comprising from one to three distinct genetic groups. We sampled brown bears from each of the regions for which hypotheses of genetic uniqueness have been made, including the bears of the Kodiak Archipelago and the bears of Admiralty, Baranof and Chichagof (ABC) Islands in southeast Alaska. These samples were analysed with a suite of nuclear microsatellite markers. The ‘big brown bears’ of coastal Alaska were found to be part of the continuous continental distribution of brown bears, and not genetically isolated from the physically smaller ‘grizzly bears’ of the interior. By contrast, Kodiak brown bears appear to have experienced little or no genetic exchange with continental populations in recent generations. The bears of the ABC Islands, which have previously been shown to undergo little or no female‐mediated gene flow with mainland populations, were found not to be genetically isolated from mainland bears. The data from the four insular populations indicate that female and male dispersal can be reduced or eliminated by water barriers of 2–4 km and 7km in width, respectively.

paetkau-biblio

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Validation of Cercopithecus erythrogaster pococki as the name for the Nigerian white-throated guenon.

Mammalia 63 (3): 389-392.

Zusammenfassung:

Die Autoren validieren den Nemen Cercopithecus erythrogaster pococki für die nigerianische Unterart der Rotbauchmeerkatze. Der Name Cercopithecus pococki war von John Guy DOLLMAN im frühen 20. Jahrhundert eingeführt worden, allerdings ohne dass dieser die Form beschrieben hätte. 1927 wurde der Name publiziert, jedoch nicht in einer Form, dass er nach den taxonomischen Regeln "verfügbar" gewesen wäre. Dies wurde von den Autoren 1999 nachgeholt.

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Samstag, 20 März 2021 10:48

WEHAUSEN, J. D., RAMEY, R. R. (2000)

Cranial morphometric and evolutionary relationships in the northern range of Ovis canadensis.

J. of Mammalogy, 81(1):145-161 (2000). https://doi.org/10.1644/1545-1542(2000)081<0145:CMAERI>2.0.CO;2

Abstract:

Univariate and multivariate statistical methods were used to examine geographic variation in skull and horn characters of 694 bighorn sheep (Ovis canadensis) specimens from the Great Basin north to British Columbia and Alberta to test previous taxonomic hypotheses. Substantially more morphometric variation in skull and horn size and shape was found west of the Rocky Mountains than within the Rocky Mountains. Our results did not support the recognition of Audubon's bighorn sheep (O. c. auduboni) as a subspecies separate from Rocky Mountain bighorn sheep (O. c. canadensis). California bighorn sheep (O. c. californiana) from Washington and British Columbia were not distinguishable from Rocky Mountain bighorn sheep but differed notably from populations in the Sierra Nevada considered part of that subspecies. Extirpated native populations from northeastern California, Oregon, and southwestern Idaho, also considered to be O. c. californiana, shared with Nelson bighorn sheep (O. c. nelsoni) from the Great Basin desert a horn-related character that distinguished them from Rocky Mountain bighorn sheep. Bighorn sheep from the Sierra Nevada were found to be distinguishable from those of the adjacent Great Basin region. Our morphometric results were concordant in geographic patterns with mtDNA data. We synonymize O. c. auduboni with O. c. canadensis. We also assign extant and extinct native populations of O. c. californiana from British Columbia and Washington to O. c. canadensis. Finally, we assign the extinct native populations of O. c. californiana from Oregon, southwestern Idaho, northern Nevada, and northeastern California to the Great Basin Desert form of O. c. nelsoni, recognizing that some transition to Rocky Mountain bighorn sheep probably occurred along that northern boundary. With these taxonomic revisions, the range of O. c. californiana includes only the central and southern Sierra Nevada.

wehausen-biblio

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Mittwoch, 17 März 2021 09:00

GROVES, C.P. (2003)

Taxonomy of ungulates of the Indian subcontinent.

Journal of the Bombay Natural History Society 100 (2/3): 341-362.

Zusammenfassung:

Nach dieser Publikation gibt es auf dem Indischen Subkontinent 46 Huftierarten, von denen Equus hemionus, Rhinoceros sondaicus und Bos javanicus hier vermutlich ausgestorben sind. Dies schließt folgende Taxa ein, die von Unterarten zu vollen Arten erhoben werden: Equus khur, Moschus cupreus, Muntiacus vaginalis, Cervus wallichii, Cervus hanglu und Capricornis thar. Gazella,bennettii salinarum wird als neue Unterart beschrieben und von Tetracerus quadricornis werden drei Unterarten unter bereits bestehenden Namen anerkannt.

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