Shift in red fox, Vulpes vulpes, mating system associated with El Niño in the Bering Sea

Zabel, Cynthia J.; Taggart, S. James

doi:10.1016/s0003-3472(89)80114-9

Cited by 131 publications

(59 citation statements)

References 35 publications

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“…Where direct persecution is low, as in protected areas and in many poorly--populated places, foxes show low mortality rates and either low litter sizes, high percentages of barren vixens (without signs of reproduction), or both (Harris and Smith 1987, Zabel and Taggart 1989, Travaini 1994). On the other hand, high mortality rates and a higher productivity are observed in fox populations suffering intense direct persecution for fur-hunting as occurs in high latitudes Tinline 1982, Yoneda andMaekawa 1982), in areas where foxes compete with man for small game (Goddard and Reynolds 1993), and due to intensive gassing and other measures in the frame of rabies control (Wandeler et al 1974, Artois and.…”

Section: Introductionmentioning

confidence: 99%

Habitat related differences in age structure and reproductive parameters of red foxes

et al. 2003

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2003. Habitat related differences in age structure and reproductive parameters of red foxes. Acta Theriologica 48: 93-100.We studied the age-structure and the reproductive parameters in two samples of red foxes Vulpes vulpes (Linnaeus, 1758) from two contiguous areas in the Ebro valley (NE Spain) differing in the level of deliberate culling and in the habitat quality. Percent of juvenile foxes in the semiarid steppe (under higher persecution) was lower (53%) than in the irrigated highly productive "vegas" (67%). Conversely, foxes in the "vegas" (more favourable habitat) had a larger litter size (3.9 ± 0.23 cubs per female) and a higher amount of barren vixens (19.3%) than in the steppe (3.3 ± 0.12 cubs per female, and 1.7% of barren vixens). In this study, migration due to juvenile dispersal does not hide the effects of the habitat on fox population dynamics, despite the proximity between both areas. The results are discussed in relation to previous studies on red fox population dynamics.

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Section: Introductionmentioning

confidence: 99%

Habitat related differences in age structure and reproductive parameters of red foxes

et al. 2003

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“…Close inbreeding is rare in wild carnivores living in polygynous or promiscuous social groups mainly because social dominance and dispersal may proceed as a mechanism of inbreeding avoidance (Frame et al, 1979;Packer and Pusey, 1993;Smale et al, 1993;Woodroffe et al, 1995;Keane et al, 1996). Besides, intraspecific variations in mating systems frequently exist within sexes (Zabel and Taggart, 1989;Thirgood, 1990;Herrera and MacDonald, 1993;Gompper et al, 1997) and these alternative strategies may play a part in inbreeding avoidance and heterozygote depletion or excess (Rood, 1989). Although most solitary carnivores are portrayed as polygynous species, such mechanisms of inbreeding avoidance are still poorly known.…”

Section: Introductionmentioning

confidence: 99%

Mating system and genetic variance in a polygynous mustelid, the European polecat.

Lodé

2001

Genes Genet. Syst.

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The population genetic implications of mating system were investigated in European polecat Mustela putorius populations from western France, combining radiotracking survey and allozyme variation analysis. Mating period occurred from February to June and polecats showed a strategy of successive polygyny, a male consorting with 1.44 females during a brief period (2.9 days). Relatedness was largely sex biased, females (21%) being almost twice more related than males (13%) suggesting a natal philopatry. Nonetheless, breeding dispersal pattern appeared relatively complex. Males were the sex dispersing but the main strategy for male polecats consisted of short-term mating excursions in adjacent females ranges whereas long-distance dispersal only constituted an alternative breeding strategy. Despite their allozymic polymorphism level reaching 24% at p<0.05 for 38 scored loci, populations showed a high heterozygote deficiency as revealed by the F IS index averaging F IS = 0.383. Thus the mating system of such solitary mustelids may be poorly efficient to prevent inbreeding within populations.

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“…In most groups, only one female will breed, but social groups with a higher number of breeding females have been observed (Storm and Ables 1966;Zabel and Taggart 1989). Sexual dimorphism in foxes may allow male foxes to benefit from polygynous mating, potentially explaining some of the variation found in mating systems , at least partly supporting hypothesis 2).…”

Section: Body Size In Relation To Population Densitymentioning

confidence: 80%

Variability in body mass and sexual dimorphism in Danish red foxes (Vulpes vulpes) in relation to population density

Pagh

Hansen

Jensen³

et al. 2017

Zoology and Ecology

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Shift in red fox, Vulpes vulpes, mating system associated with El Niño in the Bering Sea

Cited by 131 publications

References 35 publications

Habitat related differences in age structure and reproductive parameters of red foxes

Habitat related differences in age structure and reproductive parameters of red foxes

Mating system and genetic variance in a polygynous mustelid, the European polecat.

Variability in body mass and sexual dimorphism in Danish red foxes (Vulpes vulpes) in relation to population density

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