Molecular Genetic Characterization of Two Insular Asian Cat Species, Bornean Bay Cat and Iriomote Cat

Johnson, Warren E.; Shinyashiki, Fumiharu; Raymond, Marilyn Menotti; Driscoll, Carlos A.; Leh, Charles; Sunquist, Melvin E.; Johnston, L. J.; Bush, Mitchel; Wildt, David E.; Yuhki, Naoya; O’Brien, Stephen J.

doi:10.1007/978-94-011-4830-6_14

Cited by 8 publications

(5 citation statements)

References 32 publications

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“…According to the commonly accepted assumption that predators synchronize their activity with that of their main prey (Curio 1976) the Iriomote cats should show peaks in their activity in the twilight or at night, while foraging. Such a pattern was shown for the leopard cat Prionailurus bengalensis in Thailand (Rabinowitz 1990;Grassman 2000;Austin et al 2007) the closest relative of the Iriomote cat (Johnson et al 1999).…”

Section: Introductionmentioning

confidence: 84%

The reproductive tactics and activity patterns of solitary carnivores: the Iriomote cat

Schmidt

Nakanishi

Izawa

et al. 2008

J Ethol

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Felids are generally considered to be crepuscular and nocturnal in their activity, but few studies have attempted to analyze the variability of their activity patterns. We studied the daily activity of the Iriomote cat Prionailurus iriomotensis by radio-tracking on Iriomote Island, Japan. The general activity patterns of Iriomote cats showed slightly prevailing activity during dark periods of the day with particular peaks at dawn and dusk or during the early hours of the night. However, these patterns were clearly dependent on the sex and reproductive status of the cat. Peaks of cats' activity coincided with those of their main prey. On average, the cats were active for thirteen hours per day. During the mating season, the rhythm of activity in males followed that of breeding females, but not that of non-breeding ones. Males exhibited 11% higher total daily activity and longer active bouts during the mating period than in the remainder of the year. Breeding females had additional mid-day activity peak during the nursing period, but their total time of activity per day was 16% lower than in the period of kittens' independence. Their active bouts were shorter and more frequent during nursing than at other times. These results suggest that lactating females perform frequent movements to and from the den site to care for kittens. During the non-nursing period, females increased their activity, possibly in response to lowered prey abundance and the need of intensive foraging to recover after lactation. Seasonal and sexual variation of activity patterns in the Iriomote cats confirmed the existence of different reproductive strategies of males and females of these solitary carnivores.

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Section: Introductionmentioning

confidence: 84%

The reproductive tactics and activity patterns of solitary carnivores: the Iriomote cat

Schmidt

Nakanishi

Izawa

et al. 2008

J Ethol

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“…The population has declined during the last decade due to habitat loss from development and mortality from traffic accidents (Watanabe et al, 2002). Recently, their taxonomical specific distinction has been questioned by molecular methods (Johnson et al, 1999;Masuda et al, 1994). The insular fauna of Iriomote Island is unique; there are no autochthonous terrestrial small mammals such as rodents that generally form the principal prey of wild felids.…”

Section: Introductionmentioning

confidence: 99%

Ecological Flexibility of the Top Predator in an Island Ecosystem - Food Habit of the Iriomote Cat

Watanabe¹

2012

Diversity of Ecosystems

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“…Due to the inaccessibility of the forest that the cats occupy (dense vegetation, lack of roads) and to the remoteness of the island, they remained unknown to science until 1965 (Imaizumi, 1967). Although the Iriomote cats are morphologically (Leyhausen & Pfleiderer, 1999) and ecologically (Sakaguchi, 1994) unique in relation to other small cats of south-east Asia and were long considered a separate species, their specific distinction has been recently questioned by molecular methods (Masuda et al, 1994;Johnson et al, 1999). The biology and ecology of Iriomote cats has been studied by means of faecal analysis, telemetry and photo-trapping (e.g.…”

Section: Introductionmentioning

confidence: 99%

Movements and use of home range in the Iriomote cat (Prionailurus bengalensis iriomotensis)

et al. 2003

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Movement pattern of the Iriomote cat Prionailurus bengalensis iriomotensis was studied on Iriomote Island, Japan by radio-tracking. The influence of sex and reproductive status of cats on their daily movement distance (DMD), straight-line distance (SLD), daily movement range (DMR) and other relative indices of movements was estimated. DMD was longest in males (3.2 km) and shortest in females without kittens (1.9 km). Also, males moved faster than either females with or without kittens (0.34, 0.25 and 0.25 km/h, respectively). During the mating season, males moved faster and their DMRs were larger than during the rest of the year. The SLD/DMD ratio in males was similarly high in both seasons (0.29 and 0.33), which indicates that their daily routes were expanded over large areas year-round, possibly to maintain a continuous control over their home range. In contrast, SLD/DMD varied seasonally in breeding females. It was low (0.09) during the lactating period, when females returned repeatedly to the den with kittens and it became high (0.32) out of the breeding season. Breeding females moved equally long DMDs in both seasons, whereas non-breeding ones moved shorter distances during the breeding period. These differences may be related to seasonal changes of food abundance. Cats moved intensively, as indicated by long (812-1139 m) routes per km 2 of their home range, and occasionally visited distant parts of their ranges in a short time (4-5 days). On the other hand, they showed a relatively slow increase of the patrolled area, from 10% to 36% of their home ranges, in the first and fifth day, respectively. Movement pattern of Iriomote cats showed no clear relation to active defence of home ranges.

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Molecular Genetic Characterization of Two Insular Asian Cat Species, Bornean Bay Cat and Iriomote Cat

Cited by 8 publications

References 32 publications

The reproductive tactics and activity patterns of solitary carnivores: the Iriomote cat

The reproductive tactics and activity patterns of solitary carnivores: the Iriomote cat

Ecological Flexibility of the Top Predator in an Island Ecosystem - Food Habit of the Iriomote Cat

Movements and use of home range in the Iriomote cat (Prionailurus bengalensis iriomotensis)

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