Dienstag, 19 Dezember 2017 16:32

HEYER, W. R. (1969)

Studies on Frogs of the Genus Leptodactylus (Amphibia , Leptodactylidae). V. Taxonomic Notes on L. latasinus, rhodonotus, romani and wuchereri.

Herpetologica 25 (1): 1-8. April 1969.

Volltext (PDF)

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Dienstag, 12 Dezember 2017 08:12

BOULENGER, G. A. (1902)

Descriptions of new batrachians and reptiles from the Andes of Peru and Bolivia.

Annals and Magazine of Natural History, Series 7, 10: 394–402.

Volltext

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Freitag, 01 Dezember 2017 16:22

FISCHER, J. G. (1880)

Neue Reptilien und Amphibien.

Archiv für Naturgeschichte, vol. 46, no 1, p. 215-227.

Enthält u.a. Erstbeschreibung von Caecilia (=Typhlonectes) natans.

Volltext: https://archive.org/stream/archivfrnaturg4601berl#page/n3/mode/2up

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Mittwoch, 28 Juni 2017 14:00

THORBJARNARSON, J.B. (2010)

American Crocodile - Crocodylus acutus.

In: Crocodiles.Status Survey and Conservation Action Plan: 46-52.
Third Edition, ed. by S.C. Manolis and C. Stevenson. Crocodile Specialist Group: Darwin

Aus dem Inhalt:

The American crocodile is the most widely distributed of the New World crocodiles, ranging from the southern tip of Florida, along both the Atlantic and Pacifi c coasts of southern Mexico, Central America, and northern South America, as well
as the Caribbean islands of Cuba, Jamaica, and Hispaniola. The habitat of C.  acutus consists largely of brackish water coastal habitats such as the saltwater sections of rivers, coastal lagoons, and mangrove swamps. However, populations are
known from freshwater areas located well inland, including a number of reservoirs. A signifi cant population is known from Lago Enriquillo, a landlocked hypersaline lake situated 40 m below sea level in the arid southwestern Dominican Republic.

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Donnerstag, 25 Mai 2017 09:15

BÖHM, S. (2011)

Observations  on  the  South  American  yellow-footed tortoise (Chelonoidis denticulata) in French Guiana.

RADIATA 20(2): 18-32.

Conclusion:

Although the species Chelonoidis denticulata has  ong been known to terrarium enthusiasts, it has (unjustly) been regarded as somehow inferior to the more popular red-footed tortoise. Its behaviour is nevertheless very interesting, to say the least – be it in human care or in the wild. Generally speaking, it is warmly recommended to every ambitious keeper of wild animals, if at all possible, to also try and observe his favourite animals in their natural environment. Although this will not provide quite the same degree of intimate insight into the life of these animals, the impressions  you expose yourself to during a stay in the natural habitat will contribute substantially to optimising the husbandry conditions for the specimens in your care at home.

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Origin and evolutionary relationships of giant Galápagos tortoises (1999).

Proc Natl Acad Sci U S A. 1999 Nov 9; 96(23): 13223–13228.

Zusammenfassung:

Perhaps the most enduring debate in reptile systematics has involved the giant Galápagos tortoises (Geochelone nigra), whose origins and systematic relationships captivated Charles Darwin and remain unresolved to this day. Here we report a phylogenetic reconstruction based on mitochondrial DNA sequences from Galápagos tortoises and Geochelone from mainland South America and Africa. The closest living relative to the Galápagos tortoise is not among the larger-bodied tortoises of South America but is the relatively small-bodied Geochelone chilensis, or Chaco tortoise. The split between G. chilensis and the Galápagos lineage probably occurred 6 to 12 million years ago, before the origin of the oldest extant Galápagos island. Our data suggest that the four named southern subspecies on the largest island, Isabela, are not distinct genetic units, whereas a genetically distinct northernmost Isabela subspecies is probably the result of a separate colonization. Most unexpectedly, the lone survivor of the abingdoni subspecies from Pinta Island (“Lonesome George”) is very closely related to tortoises from San Cristóbal and Española, the islands farthest from the island of Pinta. To rule out a possible recent transplant of Lonesome George, we sequenced DNA from three tortoises collected on Pinta in 1906. They have sequences identical to Lonesome George, consistent with his being the last survivor of his subspecies. This finding may provide guidance in finding a mate for Lonesome George, who so far has failed to reproduce.

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Donnerstag, 14 Juni 2018 07:20

KWET, A. (2004)

Fortpflanzungsbiologie südamerikanischer Laubfrösche.

amphibia 3 (1): 8-14.

Zusammenfasung:

Die Froschlurche im subtropischen Süden Brasiliens zeichnen sich nicht nur durch eine außergewöhnliche Artenvielfalt aus, sondern auch durch eine Vielfalt an unterschiedlichen Reproduktionsstrategien. Die Ablage der Eier und Entwickluing der Larven ist in gemäßigten Zonen die weitaus häufigste Möglichkeit der Reproduktion. In den Tropen und Subtropen dagegen ist die Vielfalt deutlich größer. Viele dieser Fortpflanzungsmodi kommen nur bei Pfeiffröschen vor, jene der Laubfrösche sind weniger spektakulär, aber es gibt auch bei diesen Besonderheiten, die im Artikel vorgestellt werden.

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Donnerstag, 10 März 2016 13:42

GEWALT, W. (1978)

Unsere Tonina- (Inia geoffrensis Blainville 1817)Expedition.

Der Zoologische Garten (N.F.) 48: 323-284.

 

gewalt-biblio

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Distribution of arapaima (Arapaima gigas) (Pisces: Arapaimatidae) in Bolivia: implications in the control and management of a non-native population

BioInvasions Records (2012) Volume 1 (2): 129–138
doi: http://dx.doi.org/10.3391/bir.2012.1.2.09

Abstract :

The introduction and establishment of arapaima (Arapaima gigas) in southeastern Peru and northwestern Bolivia is an example of a fish species that appears to be increasingly common and widespread in non-native portions of its range, but whose populations are on the decline within its native range. The arapaima is overfished and considered threatened throughout its native range in the Central Amazon. We gathered and examined data on the distribution of fish and wildlife in the Takana II Indigenous Territory in Bolivia, near the arapaima’s reported initial invasion zone in Peru. Results confirmed the presence of arapaima in several water bodies where local people have also reported a strong decline in native fish populations. Further south in the Takana I Indigenous Territory, monitoring of fisheries by local communities (2002-2008), including observations on arapaima catches, indicate that until 2008 arapaima had not been reported in the area. However in 2009, there were reports of arapaima in the Undumo stream. Our results demonstrate that since the first presence of arapaima in Bolivia at the beginning of the 1980s, it has steadily expanded its distribution. We propose actions to mitigate this situation by managing and controlling populations of this invasive and endangered species, as well as improving income for indigenous communities.

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Donnerstag, 14 Juni 2018 15:14

HARRIS, M. (1974)

A Field Guide to the Birds of Galapagos.

160 Seiten, Landkarte, 12 Bildtafeln, 68 Strichzeichnungen.

Collins, London.ISBN 0 00 212044 5

Anbietertext zur Ausgabe von 1985:

This hardcover book of 160 pages from 1974, revised 1982, contains 12 plates and 68 line illustrations of the birds of the Galapagos Islands. Here on the Equator are found penguins, albatrosses and red-ballooned frigate birds. Of particular importance are the endemic flightless Cormorant and the Galapagos Penguin. The landbirds include the tool-using woodpecker and Mangrove Finches, the Galapagos Hawk and the classic examples of beak adaptation among the finches and mockingbirds which impressed Darwin on his epic voyage of 1835.

 

harris-biblio

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