Wyniki wyszukiwania

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Fluctuating asymmetry and inbreeding in Scandinavian gray wolves (Canis lupus)

100%

Wiig O., Bachmann L.

Acta Theriologica

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2014

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tom 59

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nr 3

We investigated fluctuating asymmetry in 13 traits of the skulls and jaws of historical and contemporary populations of Scandinavian gray wolves (Canis lupus). We hypothesized that there is a higher level of fluctuating asymmetry in the inbred contemporary population than in the historical population. Our analyses did not detect any difference in the level of fluctuating asymmetry as predicted. We propose different explanation for this lack of change in fluctuating asymmetry. It is assumed that a large number of studies have failed to find a positive correlation between the level of genetic stress and developmental instability and have therefore never been published, which hampers a good understanding of fluctuating asymmetry as an indicator of developmental instability. The current study is thus important in this context. The gray wolf population in Scandinavia is characterized by an extreme bottleneck followed by two and a half decades of strong inbreeding, but no associated change in fluctuating asymmetry is detected.

2

Morphometric variations of the skull in the gray wolf (Canis lupus) in Iran

100%

Khosravi R., Kaboli M., Imani J., Nourani E.

Acta Theriologica

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2012

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tom 57

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nr 4

The Gray Wolf is a wide ranging carnivore in Iran, absent only in the central deserts and Dasht-e Lut. This study was carried out to verify whether, despite their high mobility, individual wolves belonging to different populations show morphological variations in the skull. We collected 48 skulls from various regions of Iran and measured 24 variables on the cranium. These primary variables were then used to generate six indices to examine any variations in the shape of the skulls collected in different regions of the country. Although the largest skulls collected for this study originated in the mountainous regions of the northwest, northeast, and west, principle component analysis (PCA) did not result in a meaningful difference in the size and shape of wolf skulls in different regions of Iran. Our results confirm that the minor morphological variations of the skull in wolves of Iran are not an evidence for the separation of wolf populations in different regions or the existence of various subspecies in the country. This uniformity can be explained by the strong gene flow among populations as well as high mobility of the wolf that facilitates movement of individuals between populations.

3

The systematic status of the Talian wolf Canis lupus

100%

Nowak R. M., Federoff N. E.

Acta Theriologica

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2002

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tom 47

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nr 3

In the past, the gray wolf Canis lupus Linnaeus, 1758, has been recognized in Italy as either the subspecies lupus or italicus. It has also been postulated that this population has undergone introgression from the domestic dog Canis familiaris. In order to clarify these issues, multistatistical analyses were made of 10 skull measurements of 34 full grown male wolves from the Italian Peninsula, 91 other male Eurasian wolves, and 20 domestic dogs. The analyses, together with other morphological evidence and prior genetic research, support recognition of the Italian wolf as a separate subspecies, Canis lupus italicus. The same evidence indicates that the subspecies has not been affected through hybridization with the domestic dog.

Ograniczanie wyników

3 Acta Theriologica

1 Bachmann L.

1 Federoff N. E.

1 Imani J.

1 Kaboli M.

1 Khosravi R.

1 Nourani E.

1 Nowak R. M.

1 Wiig O.

1 2014

1 2012

1 2002

Fluctuating asymmetry and inbreeding in Scandinavian gray wolves (Canis lupus)

Morphometric variations of the skull in the gray wolf (Canis lupus) in Iran

The systematic status of the Talian wolf Canis lupus