Wyniki wyszukiwania

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Pads morphology in the Viverridae [Carnivora]

100%

Veron G.

Acta Theriologica

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1999

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tom 44

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nr 4

A survey of the morphology of pads within the Viverridae has been related to locomotion, ecology, ethology and to other morphological features. Species with digitigrade hind foot are lacking metatarsal pads, have an elongated pes, a short tail, and non retractile claws. They are terrestrial and their fur is spotted. Species with plantigrade hind foot, have broad and long metatarsal pads, which form a bare sole. They have retractile claws, a long tail, and fur with few markings or are one-coloured. They are arboreal and most of them are omnivorous or fruit-eaters. The genets and Poiana are intermediate forms because they have digitigrade feet, but possess long metatarsal pads, retractile claws, a long tail and spotted coat. However, some of them are close to the plantigrade state and have a plantigrade manus. The form of the pes of the genets is an adaptation for jumping. Prionodon is arboreal but have no metatarsal pads and is digitigrade. The ancestral condition is assumed to be plantigrady and arboreality and the presence of all the pads, which could be approach by some genets or Poiana, while the morphology of the foot of the Paradoxurinae, Nandinia and Cryptoprocta seems to be a secondary condition.

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Diet of the South African large-spotted genet Genetta tigrina [Carnivora, Viverridae] in a coastal dune forest

84%

Roberts P. D., Somers M. J., White R. M., Nel J. A. J.

Acta Theriologica

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2007

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tom 52

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nr 1

We studied seasonal variations in the diet of the large-spotted genetGenetta tigrina Schreber, 1776 in the coastal dune forest of the Dwesa Nature Reserve, Eastern Cape Province, South Africa. The food items with the highest relative percentage occurrence were Coleoptera, Orthoptera and Mammalia. However, by volume they ate mostly grass then followed by Coleoptera and Orthoptera. Main prey items originated from the litter layer or low lying bushes, such as arachnids, insects, myriapods, and most mammals. The latter included ten rodent (main staple:Dendromus sp.), two golden mole and two shrew species, from 10–100 g mass. They were represented dependent on species density, but switching between seasons and habitats occupied. Birds appeared under-represented in the diet for a semi-arboreal carnivore, although this correlates with data from other studies. Remains of birds in the diet, however, peaked during winter and spring probably as a result of the main nesting period in spring. There were some variation in diet between habitats (riparian, forest and beach) and seasons. Our results show the South African large-spotted genet to have an opportunistic, generalist diet.

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Kayrotype of the rare Johnston's genet Genetta johnstoni [Viverridae] and a reassessment of chromosomal characterization among congeneric species

67%

Gaubert P., Aniskin V. M., Dunham A. E., Cremiere C., Volobouev V. T.

Acta Theriologica

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2004

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tom 49

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nr 4

We present herein new data on karyotypes of members of the genusGenetta. G- and C-banded chromosomes of the Johnston’s genetGenetta johnstoni Pocock, 1908 (2n = 50 / FNa = 92) are described for the first time, and compared with those ofG. genetta (2n = 54 / FNa = 92). In addition, the standard karyotype ofG. maculata (2n = 52 / FNa = 96) was studied. A reassessment of taxonomic attribution of previously published material allowed us to characterize (2n, FNa, and chromosome morphology) the karyotypes of three genets, previously unknown (G. pardina, G. letabae andG. tigrina). Our results show that despite a rather low interspecific variability in 2n and FNa, all the species of genets (exceptG. pardina andG. maculata) appear differentiated when chromosomal morphology is taken into account. Although chromosomal banding data are limited, confrontation of G-band karyotypes with preliminary molecular phylogenetic results reveals that karyotypic evolution within the genusGenetta might involve various rearrangements like Robertsonian and tandem translocations, pericentric inversions, and centromere fissions; thus providing at least for some taxa a solid postzygotic isolation. Finally, our study suggests that cytogenetic analyses might constitute a useful tool for questioning interspecific boundaries, especially within the taxonomically debated complex of large-spotted genets.

Ograniczanie wyników

3 Acta Theriologica

1 Aniskin V. M.

1 Cremiere C.

1 Dunham A. E.

1 Gaubert P.

1 Nel J. A. J.

1 Roberts P. D.

1 Somers M. J.

1 Veron G.

1 Volobouev V. T.

1 White R. M.

1 2007

1 2004

1 1999

Pads morphology in the Viverridae [Carnivora]

Diet of the South African large-spotted genet Genetta tigrina [Carnivora, Viverridae] in a coastal dune forest

Kayrotype of the rare Johnston's genet Genetta johnstoni [Viverridae] and a reassessment of chromosomal characterization among congeneric species