Freitag, 17 September 2021 15:51

MENDOZA, J. & FRANCKE, O. (1997)

Systematic revision of Brachypelma red-kneed tarantulas (Araneae:Theraphosidae), and the use of DNA barcodes to assist in the identification and conservation of CITES-listed species.

Invertebrate Systematics 31(2):157-179. DOI:10.1071/IS16023

Abstract:

Mexican red-kneed tarantulas of the genus Brachypelma are regarded as some of the most desirable invertebrate pets, and although bred in captivity, they continue to be smuggled out of the wild in large numbers. Species are often difficult to identify based solely on morphology, therefore prompt and accurate identification is required for adequate protection. Thus, we explored the applicability of using COI-based DNA barcoding as a complementary identification tool. Brachypelma smithi (F. O. Pickard-Cambridge, 1897) and Brachypelma hamorii Tesmongt, Cleton & Verdez, 1997 are redescribed, and their morphological differences defined. Brachypelma annitha is proposed as a new synonym of B. smithi. The current distribution of red-kneed tarantulas shows that the Balsas River basin may act as a geographical barrier. Morphological and molecular evidence are concordant and together provide robust hypotheses for delimiting Mexican red-kneed tarantula species. DNA barcoding of these tarantulas is further shown to be useful for species-level identification and for potentially preventing black market trade in these spiders. As a Convention on International Trade in Endangered Species (CITES) listing does not protect habitat, or control wildlife management or human interactions with organisms, it is important to support environmental conservation activities to provide an alternative income for local communities and to avoid damage to wildlife populations.

mendoza-biblio

Freigegeben in M
Montag, 06 September 2021 08:57

ELLIOTT, C. L. & FLINDERS, J. T. (1991)

Spermophilus columbianus.

Mammalian Species 372: 1–9. https://doi.org/10.2307/3504178. Published 12 April 1991 by The American Society of Mammalogists.

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.

elliott-biblio

Freigegeben in E

Generic Revision in the Holarctic Ground Squirrel Genus Spermophilus.

Journal of Mammalogy 90 (2), 14 April 2009, Pages 270–305, https://doi.org/10.1644/07-MAMM-A-309.1

Abstract:

The substantial body of research on Holarctic ground squirrels amassed over the past century documents considerable variability in morphological, cytogenetic, ecological, and behavioral attributes in the genus Spermophilus F. Cuvier, 1825. Recent molecular phylogenetic studies suggest that the traditionally recognized genera Marmota Blumenbach, 1779 (marmots), Cynomys Rafinesque, 1817 (prairie dogs), and Ammospermophilus Merriam, 1892 (antelope ground squirrels) render Spermophilus paraphyletic, potentially suggesting that multiple generic-level lineages should be credited within Spermophilus. Herein, we recognize 8 genera formerly subsumed in Spermophilus, each of which is morphologically diagnosable, craniometrically distinctive, and recovered as a monophyletic clade in phylogenetic analyses utilizing the mitochondrial gene cytochrome b. Generic-level names are available for each of these ground squirrel assemblages, most of which are exclusively or predominantly North American in distribution (Notocitellus A. H. Howell, 1938; Otospermophilus Brandt, 1844; Callospermophilus Merriam, 1897; Ictidomys J. A. Allen, 1877; Poliocitellus A. H. Howell, 1938; Xerospermophilus Merriam, 1892; and Urocitellus Obolenskij, 1927). Only Spermophilus sensu stricto is restricted to Eurasia. Generic subdivision of Spermophilus more aptly illuminates the taxonomic relationships, ecomorphological disparity, and biogeographic history of Holarctic ground squirrels.

helgen-biblio

Freigegeben in H
Sonntag, 05 September 2021 16:02

MICHENER, G. R. & KOEPPL, J. W. (1985)

Spermophilus richardsonii.

MAMMALIAN SPECIES No. 243, pp. 1-8, 3 figures. Published 13 December 1985 by The American Society of Mammalogists.

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.

michener-biblio

Freigegeben in M
Sonntag, 05 September 2021 08:24

BARTELS, M. A. & THOMPSON, D. P. (1993)

Spermophilus lateralis.

MAMMALIAN SPECIES No. 440, pp. 1-8, 3 figures. Published 23 April 1993 by The American Society of Mammalogists.

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.

bartels-biblio

Freigegeben in B

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

Freigegeben in B
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

Freigegeben in B
Donnerstag, 02 September 2021 13:20

GATTERMANN, R. (2000)

70 Jahre Goldhamster in menchlicher Obhut - wie groß sind die Unterschiede zu seinen wildelebenden Verwandten?

Tierlaboratorium 23: 86-99

Zusammenfassung:

Der Goldhamster gehört zu den wohletablierten Versuchstieren und ist eines der populärsten Heimtiere in der westlichen Welt. Alle Labor- und Heimtierpopulationen stammen ursprünglich von einer Brueder-Schwester-Paarung aus dem Jahr 1930 ab. Bis heute kommen fast alle Daten über Verhalten, Chronobiologie, Immunologie und Physiologie von Laborstämmen.

Wir haben 19 wilde Goldhamster in drei verschiedenen Orten im natürlichen Verbreitungsgebiet in der Nähe von Aleppo / Syrien gefangen und einen neuen Zuchtstamm etabliert. Die ersten Resultate vergleichender Studien zeigen für die domestizierten Stämme eine drastische Reduktion der genetischen Variabilität. Bei dem verhaltensbiologischen, chronobiologischen, morphometrischen, hämatologischen und biochemischen Parametern haber wir jedoch nur geringe Differenzen zwischen den Labor- und Wildgoldhamstern gefunden. Sie entsprechen den üblichen Variationen zwischen Versuchstierstämmen. Außer der Übersicht zu ersten Resultaten werden Fakten zur natürlichen Lebensweise und Kulturgeschichte des Goldhamsters mitgeteilt.

gattermann-biblio

Freigegeben in G
Donnerstag, 02 September 2021 08:06

NEHRING, A. (1898)

Die Gruppe der Mesocricetus-Arten.

Archiv für Naturgeschichte, Berlin 84(1): 373-392.

Inhalt:

Es werden folgende Arten beschrieben:

  • Cricetus (Mesocricetus) nigriculus (= Cricetus nigricans Brandt, 1832, heute = Mesocricetus raddei)
  • Cricetus (Mesocricetus) Raddëi
  • Cricetus (Mesocricetus) Brandti
  • Cricetus (Mesocricetus) Newtoni
  • Cricetus (Mesocricetus) auratus

Schädel und Gebisse der ersten vier sowie von Cricetus cricetus sind auf einer Tafel dagestellt.

nehring-biblio

Freigegeben in N
Mittwoch, 01 September 2021 14:26

SCHÜRER, U. (2017)

Über Waldelefanten.

Der Zoologische Garten 86 (1-6): 108-166

Abstract:

An attempt is made to provide a survey of the African Forest Elephants kept in various zoological gardens between 1882 and the present. Due to the very mixed quality and reliability of sources, and the difficult question which elephants from the northern part of their range may have been hybrids, I do not offer the data as a table. The two main areas of origin were today‘s Gabon and the Democratic Republic of the Congo, specifically the elephant training stations at Api and Gangala-na-Bodio or Wando and Aru. In the elephant training centers, four calves were born in 1930, of which three survived. From Gangala-na-Bodio, Forest Elephants, Savannah Elephants and hybrids between both have been exported. There are also exports for which data are available, but not on their final destination.

I also discuss the possible existence of Pigmy Elephants, coming to the conclusion that there is no proof. Growth tables and photographs of Forest Elephants in zoological gardens offer too little support for the thesis. Studies of the anatomy and the genome and observations of free-living Forest Elephants suggest that Pigmy Elephants do not exist as a taxonomic unit.

In many cases, the health of Forest Elephants kept in zoological gardens was poor. This was largely due to insufficient housing and management, preventing breeding in Europe and in America. This would have been only theoretically possible in a few cases anyway. Most Forest Elephants were kept as single individuals, either alone or together with African Savanna or Asian Elephants. Unlike those kept in the elephant training centers in what was then the Belgian Congo, most Forest Elephants in zoos were short-lived. With the current knowledge of elephant management, a new start in keeping and breeding Forest Elephants could be made outside their native home. They are critically endangered due to loss of habitat and severe poaching.

schürer-biblio

Freigegeben in S
© Peter Dollinger, Zoo Office Bern hyperworx