Home Range and Daily Activity of the Round-tailed Ground Squirrel, Spermophilus tereticaudus neglectus

1973 ◽  
Vol 89 (2) ◽  
pp. 287 ◽  
Author(s):  
Charles M. Drabek
Keyword(s):  
Home Range ◽  
Ground Squirrel ◽  
Daily Activity

Effects of food and predators on the home-range sizes of Arctic ground squirrel (Spermophilus parryii)

1998 ◽  
Vol 76 (3) ◽  
pp. 592-596 ◽  
Author(s):  
Anne H Hubbs ◽  
Rudy Boonstra
Keyword(s):  
Home Range ◽  
Ground Squirrel ◽  
Large Scale ◽  
Yukon Territory ◽  
Ground Squirrels ◽  
Home Ranges ◽  
Spermophilus Parryii ◽  
Mammalian Predators ◽  
Core Areas ◽  
Arctic Ground Squirrels

We used radiotelemetry to study the effects of food addition and predator reduction on the home-range sizes of adult Arctic ground squirrels (Spermophilus parryii) on large-scale experimental grids in the boreal forest of the southwestern Yukon Territory. Home ranges were 2-7 times smaller on food-supplemented grids than on nonsupplemented grids, regardless of whether large mammalian predators were present. Similarly, core areas (where 50% of activities occur) were 8-11 times smaller on food-supplemented grids. Food availability rather than predator presence primarily determined the sizes of home ranges and core areas of Arctic ground squirrels.

Long-term presence and movement patterns of juvenile bull sharks, Carcharhinus leucas, in an estuarine river system

2010 ◽  
Vol 61 (1) ◽  
pp. 1 ◽  
Author(s):  
Michelle R. Heupel ◽  
Beau G. Yeiser ◽  
Angela B. Collins ◽  
Lori Ortega ◽  
Colin A. Simpfendorfer
Keyword(s):  
Home Range ◽  
Daily Activity ◽  
River System ◽  
Home Ranges ◽  
Activity Spaces ◽  
Diurnal Patterns ◽  
Carcharhinus Leucas ◽  
Acoustic Array ◽  
Caloosahatchee River

Elasmobranchs living in rivers and estuaries may be highly susceptible to environmental and anthropogenic changes to coastal habitats. To address this, patterns of movement of 67 juvenile bull sharks (Carcharhinus leucas) were examined in the Caloosahatchee River between 2003 and 2006 using an array of 25 acoustic receivers. Individuals were monitored for periods of 1–460 days with most present for periods of weeks to months. Individuals utilised the entire monitored section of the river (~27 km) and also moved upriver beyond the extent of the acoustic array. Daily activity spaces of individuals ranged from 0 to 14 km with most <5 km. Monthly mean home ranges were 0.9–5.6 km and although home-range sizes were consistent through time, location of individuals within the river changed through time. Individuals moved upstream during the day and downstream at night and this pattern persisted across years. Based on data collected from depth transmitters in 2006, individuals swam closer to the surface at night and remained in deeper water during the day, suggesting further diurnal patterns in habitat use. Long-term consistent use of this habitat by young C. leucas suggests this population is highly dependent on the Caloosahatchee River as a nursery area.

scholarly journals Daily activity, diet and habitat of Bali myna (Leucopsar rothschildi) in Nusa Penida, Bali, Indonesia

2020 ◽  
Vol 21 (10) ◽  
Author(s):  
Fransiscus Xaverius SUDARYANTO ◽  
SATYAWAN PUDYATMOKO ◽  
Tjut Sugandawaty Djohan ◽  
Jusup Subagja ◽  
I Wayan Suana ◽  
...  
Keyword(s):  
Home Range ◽  
Daily Activity ◽  
Natural Habitat ◽  
Interspecific Interaction ◽  
Daily Activities ◽  
Ecological Data ◽  
Mutualistic Symbiosis ◽  
Foraging Area ◽  
Original Habitat ◽  
Polygon Method

Abstract. Sudaryanto FX, Pudyatmoko S, Djohan TS, Subagja J, Suana IW, Kalih LATTWS, Hardini J, Subagio J. 2020. Daily activity, diet, and habitat of Bali myna (Leucopsar rothschildi) in Nusa Penida, Bali, Indonesia. Biodiversitas 21: 4474-4482. Endemic Bali myna (Leucopsar rothschildi) has a very high risk of extinction in its natural habitat. Bali Barat National Park (BBNP) and other NGO's have conducted various conservation activities, such as breeding and release, community development, environmental improvement, and awareness program. Breeding and release have already been applied in Nusa Penida out of its original habitat. To support the conservation of Bali myna, basic ecological data are needed, eg. daily activities, habitat profile, home range, and interspecific interaction. This study aimed to meet the needs of these vegetation profiles. We collected data from 2013 to 2015. Daily activities were observed on a couple of Bali myna in a nest box at agroforestry area. Habitat profile was determined by analyzing vegetation at their foraging, nesting, and resting areas, using a quadrate plot of 20 x 20 m2. To estimate the home range, of the Bali myna, we recorded 700 points of perching of these birds, by using Global Positioning System, and analyzed using Convex Polygon Method. Their interaction with other animals was carried out at their foraging, nesting, and roosting areas. Daily activities of the Bali myna in Nusa Penida are predominantly recorded in agroforestry areas, so its home range is relatively narrow, at 3.9 ha. The food types of Bali myna in Nusa Penida were fruits, insects, and nectar flowers. Sucking on nectar flower is the first report here. The vegetation profile of nesting and foraging area for Bali myna consists of one layer of thick and dense canopy, while the vegetation profile of resting area is not too dense, which is composed of two canopy layers. Bali myna's interactions with other animals for competition, predation, and mutualistic symbiosis. These data are expected to be used to make decisions in order to conserve Bali myna in Nusa Penida.

Spatial resource partitioning by sympatric grey fox (Dusicyon griseus) and culpeo fox (Dusicyon culpaeus) in southern Chile

1994 ◽  
Vol 72 (10) ◽  
pp. 1788-1793 ◽  
Author(s):  
Warren E. Johnson ◽  
William L. Franklin
Keyword(s):  
Home Range ◽  
Daily Activity ◽  
Activity Patterns ◽  
Interference Competition ◽  
Home Ranges ◽  
South American ◽  
Home Range Use ◽  
Spatial Resource Partitioning ◽  
Cover Density ◽  
Torres Del Paine

The activity patterns, home-range use, and habitat utilization of sympatric South American grey fox (Dusicyon griseus) and culpeo fox (Dusicyon culpaeus) in eastern Torres del Paine National Park, Chile, were studied to determine how the two species were distributed. Both species were primarily nocturnal. Mean percent daily activity did not differ between species or among seasons, but the grey fox had a greater daily activity rate in summer and fall and the culpeo fox in winter and spring. Seasonal and annual home ranges of culpeo foxes were larger than those of grey foxes, but did not differ between sexes or among seasons. Home ranges of grey and culpeo foxes were interspersed in a mosaic-like arrangement and did not overlap. Grey foxes were located more often in upland shrub transition habitat and in areas of medium cover density. Culpeo foxes were found more often in thickets of trees and in areas of high cover density. Within their home range, matorral shrubland or Nothofagus thicket habitat was selected by all culpeo foxes and by 60% of grey foxes monitored. Interference competition by the culpeo fox may have been important in determining fox distribution.

Movements of Echidnas, Tachyglossus aculeatus, Determined by Marking-Recapture and Radio-tracking

1975 ◽  
Vol 2 (2) ◽  
pp. 93 ◽  
Author(s):  
ML Augee ◽  
EHM Ealey ◽  
IP Price
Keyword(s):  
Home Range ◽  
Ambient Temperature ◽  
Daily Activity ◽  
Winter Season ◽  
Specific Site ◽  
Suitable Habitat ◽  
Radio Tracking ◽  
Tachyglossus Aculeatus

Marking-recapture studies have confirmed that echidnas stay within a suitable habitat. Radiotracking studies showed that they have a definite home range with a diameter in the order of 800 m, which may overlap with that of a number of conspecifics. Neither males nor females without young used a specific site during inactive periods, although certain sites offering good cover were re-used during the winter season. Daily activity periods varied throughout the year and correlated more with ambient temperature than with photoperiod.

Topographic distribution and daily activity of the European ground squirrel population in Bugacpuszta, Hungary

2002 ◽  
Vol 47 (1) ◽  
pp. 45-54 ◽  
Author(s):  
Krisztián Katona ◽  
Olivér Váczi ◽  
Vilmos Altbäcker
Keyword(s):  
Ground Squirrel ◽  
Daily Activity ◽  
Topographic Distribution

scholarly journals Initial Investigation of Sulawesi Moor Macaque (Macaca maura) in Tabo-tabo Forest, South Sulawesi - Indonesia

2021 ◽  
Vol 886 (1) ◽  
pp. 012033
Author(s):  
R.I. Maulany ◽  
G.T.S. Putra ◽  
N. Nasri ◽  
A.S. Hamzah ◽  
P.O. Ngakan
Keyword(s):  
Endangered Species ◽  
Home Range ◽  
Direct Observation ◽  
Tree Species ◽  
Daily Activity ◽  
Sampling Method ◽  
International Union ◽  
South Sulawesi ◽  
Muntingia Calabura ◽  
Daily Distance

Abstract Sulawesi black crested macaque (Macaca maura) is one of the seven endemic macaque inhabited Sulawesi Island and is mainly found in the Southern part of Sulawesi. This species is classified as an endangered species by the International Union for Conservation and Nature (IUCN). The aim of this research was 1) to examine the homerange of M. maura and daily activity of the species, 2) to determine tree species used by the species as diet sources and resting trees in Tabo-tabo Forest, Pangkep Regency (South Sulawesi – Indonesia). The home range was measured by connecting coordinate points passed by a moor macaque group in the area for 6 consecutive days. Meanwhile, daily activity of the species was monitored by using scan sampling method for sampled individuals in three observation periods. Direct observation was carried out to identify diet and resting tree species. It was found that the moor macaque group had 22.06 ha width of home range with the total distance around 6.64 km. The daily distance spent by the group was between 0.9-1.5 km or in average was 1.1 km. The highest activities known to be feeding (30.4%) and then followed by moving (25.3%). While resting activities was allocated for 24.7%. The least activities recorded were social activities (19.6%). Tree species used by the group as diet and resting trees were Anthocephalus chinensis and Dracontomelon dao. The tree species known to be a diet tree only were Garcinia nervosa, Arenga pinnata, Flacourtia rukam, Ficus. sp, Eugenia cuminii, Gastonia serratifolia, Mangifera sp., Spondias dulcis, and Muntingia calabura.

Home Range and Activity Patterns of the Sand Goanna, Varanus gouldii (Reptilia: Varanidae)

1978 ◽  
Vol 5 (3) ◽  
pp. 417 ◽  
Author(s):  
B Green ◽  
D King
Keyword(s):  
Home Range ◽  
Daily Activity ◽  
Activity Patterns ◽  
South Australia ◽  
Home Ranges ◽  
Activity Areas

The movements of two subspecies of the sand goanna, V. gouldii, were studied at two localities in South Australia. The estimated home ranges of individuals of V.g. rosenbergi differed considerably, the largest area being 25 times the size of the smallest. Daily activity areas varied with the season, being largest in summer and smallest in winter. There were distinct differences between the two subspecies in their activity patterns, V. g. rosenbergi being active throughout the year whereas Kg. gouldii remained underground during winter.

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