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1

Winter circadian activity pattern of free-ranging coypus in the Parana River Delta, eastern Argentina

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Palomares F., Bo R., Beltran J. F., Villafane G., Moreno S.
Acta Theriologica
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1994
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tom 39
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nr 1
During August 1990, 3 male and 3 female coypus Myocastor coypus (Molina, 1782) were radiotracked for 42 24-h periods at the Delta of Paraná River, Argentina. Coypus were mainly nocturnal, with activity peaks around one hour after sunset and two hours before sunrise. Movement rate peaked between 02.00 and 04.00 o'clock. This pattern is similar to that observed in captive individuals and introduced feral popu­lations. Among 7 environmental factors (day period, temperature, wind, cloud cover, and presence or absence of moon, fog, and rain) only period of day and rainfall during daylight were found significantly related to coypu activity, but no environmental factor influenced coypu nocturnal rate of movement.
2
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Activity pattern and food habits of Grizzled Giant Squirrel (Ratufa macroura) in Srivilliputhur Grizzled Squirrel Wildlife Sanctuary, Tamil Nadu, Southern India

84%
Babu Rao G., Nagarajan R., Saravanan M., Baskaran N.
International Letters of Natural Sciences
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2015
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tom 05
Activity pattern and food habits of Grizzled Giant Squirrel were investigated in Srivilliputhur Grizzled Giant Squirrel Wildlife Sanctuary from December 2011 to March 2012. Focal animal sampling method was used to record the activity pattern and food habits. Sampling was done in three different habitats viz., Private land, Reserve forest and Temple land. Feeding was the dominant activity accounting for 35.4% of the activity period. Bimodal feeding pattern was observed in Squirrels, the observations were made from early morning hours to till (0600-1800) late evening hours. The Squirrels feed upon 23 plant species; among them 11 were trees species, 10 climbers and 2 shrubs. Seven types of plant parts were used by Squirrels. Leaf consumption was high (38%) followed by fruit (24%). The high consumption of leaves was due to easy availability of leaves and limited availability of other plant parts. Squirrel‟s invasion into Private Land and Temple Land was observed which can be attributed to abundance and easy availability of food plants, canopy continuity and less predatory pressure.
3

Individual variations of daily activity patterns in radiotracked European hares during winter

84%
Pepin D., Cargnelutti B.
Acta Theriologica
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1994
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tom 39
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nr 4
Daily movements during winter of 2 adult male (Nos 1 and 3) and 2 adult female (Nos 2 and 4) radiotracking hares Lepus europaeus Pallas, 1778 were estimated from simultaneous bearings using a 50 x 50 m grid. As deduced every 4 h both from the average rate of recorded changes of squares on the grid, and from the average distance travelled, we found that the hares had a typically nocturnal locomotor activity pattern. However, when comparing individual data, we found that significant variations oc­curred from 12.00 to 15.59, and between 00.00 and 07.59. We also estimated that the average daily activity of the hares started near sunset (mean = 23 min after sunset, range + 110 min), and ended near sunrise (mean = 14 min before sunrise, range ± 60 min), male No 1 usually spending more time in activity than the 3 other specimens, Finally, we assessed the differences in nocturnal distance travelled between indi­viduals (Nos 2, 3, and 4) for a given period (during week 6, mean = 3.91 km, range 6.02-2.62), and also during several nights (during weeks 6, 8, 10 and 12) for male No 3. We concluded that some inter- and intra-individual variations of activity patterns occurred on various time scales (day-to-day or during a given night), such differences probably contributing to confuse predators.
4

Home range and activity patterns of red fox Vulpes vulpes breeding females

84%
Travaini A., Aldama J. J., Laffitte R., Delibes M.
Acta Theriologica
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1993
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tom 38
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nr 4
Home range size and activity pattern were evaluated by radiotracking for seven red fox Vulpes vulpes (Linnaeus, 1758) breeding females, in the Doñana Biological Reserve, SW Spain. Mean home range size was 218 ha (SD = 76, n = 7). A home range for one of the seven females was 1129 ha for one nearly complete year and only 253 ha for the same female during the breeding season. We suggest that this size reduction could be a result of energetical and behavioral shifts due to the breeding condition. Activity was slightly increased during nights with long resting periods during light hours. Total mean travelling distances was 6686 m in 24-hour cycles. Daytime and nighttime mean distance covered were 2101 and 4585 m, respectively.
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