Wyniki wyszukiwania

1

Home range patterns of male fallow deer Dama dama in a sub-Mediterranean habitat

100%

Davini S., Ciuti S., Luccarini S., Apollonio M.

Acta Theriologica

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2004

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tom 49

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nr 3

From 1996 to 2000 the home ranges of 14 male fallow deer Dama dama (Linnaeus, 1758) were studied in the San Rossore Preserve (Italy) using radio-telemetry. Mean size of annual home ranges was 588.9 ± 278.9 ha, calculated by MCP, and 337.5 ± 178.9 ha, using Kernel method, and was larger than that reported in published literature to date. The size of the seasonal home range estimated with the MCP method was 90.6 ± 129.1 ha during spring, 73.7 ± 67.9 ha in summer, 465.0 ± 230.6 ha in fall, and 65.6 ± 60.6 ha in winter. The Kernel method gave 84.7 ± 140.2 ha in spring, 61.3 ± 64.6 ha in summer, 306.0 ± 170.5 ha in fall, and 46.5 ± 44.0 ha during winter. The seasonal analysis suggested that bucks tended to occupy the same particular area from winter to summer, which was related to rich trophic resources, even despite of anthropic disturbance. During autumn, males reached the rutting site (a lek) that was 4 km distant from the areas occupied during the other three seasons. The lekking behaviour was the main factor influencing home range size.

2

Estimation of home-range size in small rodents for any truncation of sampling data

100%

Wierzbowska T.

Polish Ecological Studies

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1994

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tom 20

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nr 3-4

3

Size and overlap of home range in a high density population of the Japanese field vole Microtus montebelli

88%

Urayama K.

Acta Theriologica

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1995

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tom 40

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nr 3

Relationships of size and overlap of home range with the population density in a flood plain population of Microtus montebelli (Milne-Edwards, 1872) with high density were examined from April to December 1993 using mark-recapture method. Population density in the study area was reached 280 males/ha and 236 females/ha in summer. Although reproductively active voles were present throughout this study, more than half of females underwent reproductively resting period in summer. Main breeding seasons were spring and autumn when the density was relatively low. While the home range size of adult males did not decrease in summer when the population density was higher than other seasons, that of adult females was significantly smaller in summer than in spring or autumn. In summer, males showed significantly larger degree of home range overlap than in spring or autumn, while home ranges of females overlapped little throughout this study. These results differed from those of the previous studies on this species, possibly due to much higher density in mountainous populations.

4

Home range and nest arrangement of the Siberian flying squirrel Pteromys volans in an urban edge, Northern Japan

75%

Asari Y., Yanagawa H.

Polish Journal of Ecology

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2019

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tom 67

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nr 2

5

Characteristics of habitats used by a female moose in the managed forest area

75%

Heikkila R., Nygren K., Harkonen S., Mykkanen A.

Acta Theriologica

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1996

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tom 41

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nr 3

The use of habitats by one female moose Alces alces (Linnaeus, 1758) in a managed forest area was studied in 1993-1994. The home range area for the whole year 1993 was 4154 ha (the 90% minimum convex polygon). The area used during January-April in the first winter was 1888 ha (71% of the summer range in May-August). The core area (50% adaptive kernel) was 408 ha (9.8% of home range) in 1993. Forested peatlands were relatively intensively used by the moose. The old and middle-aged forests were used heavily up until the autumn. In the second winter with thicker snow cover the home range was smaller and the use of available habitats more uniform. The characteristics of stands used in the core area did not differ significantly from the average for the whole area. The availability of food was relatively high even in the old-forest habitats due to the forest edges rich in saplings, particularly in the vicinity of peatland. The moose fed mainly on highly available birch and used more Scots pine in the second winter. The availability of palatable saplings, dwarf shrubs and herbaceous plants appear to have seasonal importance in habitat selection. The tops of recently felled trees were utilized for periods lasting for several days. By combining the basic ecological elements, dynamic factors and effects of browsing, the habitat analyses could probably be useful for management planning in moose areas.

6

Home ranges of brown hares in a natural salt marsh: comparisons with agricultural systems

75%

Kunst P. J. G., Van der Wal R., Van Wieren S.

Acta Theriologica

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2001

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tom 46

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nr 3

This is the first study on spatial behaviour of brown hares Lepus europaeus Pallas, 1778 based on radio-telemetry in a natural system, which we contrast with data from agricultural systems. Radio tracking took place in a Dutch salt marsh over a 10-month period, with intensive tracking sessions during April/May and December/January. Six hares could be followed in both periods and in total 1224 fixes were collected. Average home range size was calculated as 28.7 ± 8.5 ha when using Adaptive Kernell method (Mimimum Convex Polygon: 27.3 ± 9.0 ha) on 90% of all fixes. Such values are in the lower end of the range of those obtained for agricultural systems. Home range size did not differ between sexes, day and night, or across seasons. However, the size of the core range (50% of fixes) was twice as large in May compared to the winter period, and thus inversely related to food availability. Unlike in agricultural systems, use of space by hares did not change over the course of the season. This probably reflects the patchy nature of the natural habitat which provides food and shelter throughout the year in a confined area.

7

Factors affecting home range size and overlap in Akodon azarae [Muridae: Sigmodontinae] in natural pasture of Argentina

75%

Priotto J. W., Steinmann A. R.

Acta Theriologica

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1999

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tom 44

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nr 1

Differences in home range size in relation to sex, age, breeding and non-breeding periods were studied Home range size and overlap were examined at different densities values in populations of Akodon azarae (Fischer, 1829) on railway banks in southern Cordoba Province (Argentina). The sampling was carried out between October 1994, and February 1997, using the capture-mark-recapture method. Home range size in A, azarae was determined by sex and breeding period, and it was independent of the observed density values. Home range size of males was always larger than that of femaies. Increase of population density during the breeding period affected the degree of intersexual overlap of home range,

8

Spatial organization in a small population of the root vole Microtus oeconomus in a linear habitat

75%

Fauske J., Andreassen H. P., Ims R. A.

Acta Theriologica

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1997

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tom 42

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nr 1

We studied demography and spatial organization in a population of root voles Microtus oeconomus (Pallas, 1776) inhabiting a fenced, linear habitat (560 x 1.5 m) during the breeding season, using live trapping and radiotelemetry. There were no establishments of new reproductive individuals. Compared to root voles in non-linear habitats, home ranges were extremely small and no male home ranges overlapped. A short term removal and reintroduction experiment (2 days removal of every second individual on the study area) produced no changes in home range size, indicating that home range borders were not defended by daily contact between neighbours.

9

Movement pattern and growth ratio tagged fish in two lowland rivers of Central Poland

75%

Penczak T.

Polish Journal of Ecology

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2006

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tom 54

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nr 2

Using a mark-recapture technique in two lowland rivers, movements of ten fish species were investigated. Both rivers, the Pilica (the Vistula River system) and Warta (the Odra/Oder River system), located in Central Poland, are lowland, alluvial, meandering but dammed in the middle course. Reaches selected for the study have an almost natural structure (bottom structure, banks, vegetation). The subject of the study were cyprinids (barbel Barbus barbus (L.), chub Leuciscus cephalus (L.), dace Leuciscus leuciscus (L.), ide Leuciscus idus (L.), roach Rutilus rutilus (L.), bream Abramis brama (L.), tench Tinca tinca (L.) and giebel Carassius auratus gibelio (Bloch), as well as pike Esox lucius L. and perch Perca fluviatilis L. (predators) which in summer and autumn have realized life history strategies in small home section lengths (HSL), although undertaking ‘round-trip movements’. For a few species in the study the HSL values were equal or smaller than the calculated median displacement distances (MD). The neighboring man-made reservoirs have affected some individuals which moved dozens km from a channel to the reservoir. Body weight increase recorded for more abundant species at investigated rivers (pike and chub), shows that an individual can keep the same body weight for a long time or grow faster than it was described before.

10

Home ranges of European mink Mustela lutreola in Southwestern Europe

75%

Garin I., Zuberogoitia I., Zabala J., Aihartza J., Clevenger A. P., Rallo A.

Acta Theriologica

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2002

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tom 47

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nr 1

We radiotracked 7 European mink Mustela lutreola Linnaeus, 1761 (5 males and 2 females), to determine their distribution, size and temporal changes of their home range in an area of southwestern Europe, where American mink M. vison was not established. Size of home ranges varied from 11 to 17 km along watercourses in males and were 0.6 and 3.6 km in females. Home ranges of males were larger than those found in previous studies. Most females captured (either radiotracked or not) were found within the home range of males. Males occupied adjoining river sections with minimal range overlap, suggesting an intrasexually exclusive spacing pattern for males. Each month males used new river stretches, mainly along tributaries; meanwhile they showed a steady use of their stem river section. Resting sites were mainly beneath dense brambles of Rubus patches located in the river bank.

11

Ferret badger Melogale moschata activity, movements, and den site use in Southeastern China

75%

Wang H., Fuller T. K.

Acta Theriologica

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2003

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tom 48

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nr 1

We conducted field studies of ferret badgers Melogale moschata (Gray, 1831) during March-November 1994 and May-July 1996 at Taohong Village in southeastern China. Capture data suggested that they gave birth in May, and telemetry data on 11 individuals indicated that they were nocturnal. Size of resting home ranges (daybed locations only; n> 20 re-locations) of 6 individuals averaged 11 ha (range 1-25 ha) and no sex-specific differences in size were detected. Distances between daily resting sites averaged 101 m, but ferret badgers often (51% of occasions) returned to sites used the previous day. Ferret badgers readily used a variety of shelters as daybeds, including rodent dens (47%), firewood stacks (20%), open fields (17%), and rock piles (5%) around houses.

12

Space use in Wagner's gerbil Gerbillus dasyurus in the Negev Highlands, Israel

75%

Gromov V. S., Krasnov B. R., Shenbrot G. I.

Acta Theriologica

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2000

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tom 45

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nr 2

Space use of Gerbillus dasyurus (Wagner, 1842) was studied on a 1,25-ha site during 2 months. The density was 20.8 animals per ha and 72.7% of captured individuals were sexually active adults. The observed sex ratio differed significantly from 1:1 with a male bias. An active ventral sebaceous gland was recorded in reproductively active males only. No significant correlation was found between body mass and ventral gland size. Male home ranges were larger than those of females and overlapped between one another to a greater extent. There were three dusters of capture points which indicated the occurrence of spatial associations of individuals whose home ranges broadly overlapped with one another and were almost isolated from home ranges of individuals belonging to other associations. No difference in microhabitat distribution of male captures was found, whereas that of female captures differed significantly among mierohabitats, being the highest in patches with high shrub cover.

13

Home ranges of sympatric soricine shrews in Hokkaido, Japan

75%

Ohdachi S.

Acta Theriologica

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1992

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tom 37

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nr 1-2

Home ranges of sympatric shrews, Sorex unguiculatus Dobson, 1890 S. gracillimus Thomas, 1907 and S. caecutiens Thomas, 1907 were studied by a mark-recepture method during the non-snow covered seasons in northern Hokkaido, 1988 and 1989. Home range size of S. unguiculatus, the largest species (15.1 g for adult males), was not significantly different from that of S. gracillimus, the smallest species (4.4 g for adult males). Both S. unguiculatus and S. gracillimus had more exclusive home ranges within species than between species. Tolerance of home range overlap may be related to the reduction of dietary overlap. No reliable information of home range for S. caecutiens was obtained in this study.

14

Home ranges and movement patterns in a vulnerable polecat Mustela putorius population

75%

Baghli A., Verhagen R.

Acta Theriologica

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2004

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tom 49

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nr 2

Home range characteristics and movement patterns of four female and six male polecats Mustela putorius Linnaeus, 1758 were studied in Luxembourg using radio- -telemetry. Home range size of polecats ranged from 42 to 428 ha with an average of 181 ha. The mean (± SE) home range size of males of (246 ± 45 ha) was significantly larger than that of females (84 ± 17 ha). Polecats concentrated 50% of their space use in only 15% of their home range possibly indicating a patchy .environment. Comparing our data with other studies in Europe, polecats seem to occupy approximately the same home range size (except in Switzerland) regardless of population density. Average distance traveled per night by males was 3.6 times greater than that of females. Also, seasonal variation in movements was observed in males but not in females.

15

Home range size and its development for fallow deer in the Blue Mountains, New Zealand

75%

Nugent G.

Acta Theriologica

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1994

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tom 39

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nr 2

Fifty-nine fallow deer Dama dama dama (Linnaeus, 1758) fitted with radio collars were monitored in the Blue Mountains, Otago, New Zealand, between September 1985 and February 1988 to determine home range size ant! patterns of range development. Fallow deer occupy small annual ranges, averaging 66 ha for females and 189 ha for males (90% isopleths calculated by the Harmonic Mean method). For resident animals the respective values were 50 ha and 127 ha. Bimonthly seasonal range size varied with sex, age-class and season, with different seasonal patterns for males and females. Only one adult female dispersed, and most females occupied the same core range throughout the period they were monitored. Some subadult females did move into new areas, by a process of range extension rather than a single dispersive range shift. In contrast most males monitored for more than 6 months shifted their range, but the distances between successive seasonal range centres never exceeded 2,6 km and could not be reliably distinguished from adult seasonal movements. The range stability and slow dispersal rates of fallow deer should make them easier to control than the other common introduced deer species in New Zealand, and should make it practical to have different management objectives and regimes for adjacent catchments in the Blue Mountains.

16

Home range and activity of the Indian giant flying squirrel (Petaurista philippensis) in Taiwan: influence of diet, temperature, and rainfall

63%

Acta Theriologica

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2012

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tom 57

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nr 3

Knowledge on home range and activity patterns, along with their responses to environmental fluctuations, is important for the understanding of wildlife ecology and conservation, but related studies on giant flying squirrel species (genus Petaurista) are still limited. We radio-tracked five Indian giant flying squirrels (Petaurista philippensis) in subtropical Taiwan to assess their home range and activity patterns, as well as their behavioral strategy to cope with fluctuations in food quality. Specifically, we assessed the travelling and resting times of P. philippensis in relation to its energy requirements during periods of low food quality in winter. The influence of temperature and rainfall was also investigated. A total of five individuals were radio-tracked for 1–6 months. The home ranges of four individuals averaged 2.8 ± 2.0 ha (± SD), based on the 95 % kernel method. Mean home ranges of two adult males (4.4 ± 1.3 ha) were larger than a female (1.8) and sub-adult male (0.8). P. philippensis was found to be more active around dusk and dawn and less active at midnight. Daily ranging distance and activities were negatively associated with proportion of mature leaves in diet of the only female that we tracked. Rainfall had negative effects on activities of the males, while temperature had no significant influence. The current study suggested an energy conservative strategy of P. philippensis. Home ranges of P. philippensis are smaller than those of smaller flying squirrel species (genus Glaucomys and Pteromys spp.), which may be related to the differences in food habits and gliding efficiency.

17

Home range and habitat use by Aquatic Warblers Acrocephalus paludicola on their wintering grounds in Northwestern Senegal

63%

Arbeiter S., Tegetmeyer C.

Acta Ornithologica

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2011

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tom 46

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nr 2

The Aquatic Warbler Acrocephalus paludicola was once a common breeding bird in mesotrophic fen mires all over Central and Western Europe. In the last century large parts of its habitat have been destroyed by wetland drainage and agricultural intensification. Besides protecting the remaining breeding habitats, it is of great importance to preserve suitable migration stopover habitats and wintering grounds to avert the extinction of the species. We determined home-range size and the use of vegetation associations of Aquatic Warblers on the wintering grounds in a flooded plain north of the Djoudj National Park in Senegal. Individual birds (11) were caught in mist nets and equipped with radio transmitters. Locations were assessed by radiotelemetry and a compositional analysis was conducted to determine which vegetation types were preferred within home ranges. Similar to their behaviour on the breeding grounds, the Aquatic Warblers showed no territorial behaviour in their winter quarters. They used home ranges that averaged 4 ha in size, which they shared with conspecifics and other warblers. The home ranges overlapped 54% on average, with a maximum of 90% in an area used by four individuals. The vegetation structure of the wintering habitat is similar to breeding grounds and stopover sites of the species. Preferential vegetation had 80% to 100% cover and consisted of 60 to 90 cm high stands of Oryza longistaminata, Scirpus maritimus or Eleocharis mutata. Most birds stayed more often near the edge of open water, probably for foraging. A constant inundation seems essential, because Aquatic Warblers never occurred in desiccated parts of the study site.

18

Alternative strategies in the acquisition of home ranges by male pine martens in a high-density population

63%

Zalewski A.

Acta Theriologica

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2012

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tom 57

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nr 4

Two strategies of home range acquisition by male subadult pine martens (Martes martes) were described from a high-density population inhabiting Białowieża National Park. Four mother–offspring pairs were identified by genetic parentage assignments. Four subadult males showed two different strategies of home range acquisition: dispersal and sedentary. The dispersing males used an area 4–10 times larger than in sedentary subadult males. A sedentary subadult male used his natal area with his mother, and in the following mating season, this male left this area and established a home range that overlapped greatly with another unrelated female near the natal range. A similar high overlap between another subadult male and an unrelated adult female persisted for 3 years. After the death of this female, the male extended his range to overlap slightly with two to four other females. The sedentary strategy adopted by some subadult males may explain the great variation in spacing patterns of solitary mammals.

19

Heavy flooding effects on home range and habitat selection of free-ranging Iberian hares (Lepus granatensis) in Doñana National Park (SW Spain)

63%

Carro F., Soriguer R. C., Beltran J. F., Andreu A. C.

Acta Theriologica

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2011

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tom 56

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nr 4

The Iberian hare Lepus granatensis is a common and abundant species throughout the Iberian Peninsula; however, studies documenting its ecology are scarce. Between August 1996 and September 1997, after a long drought, we studied the effects of a widespread flood on the Iberian hare ecology in ecotone pastures of Doñana National Park. Hares were captured using vertical nets through part of 1996 and 1997. Fourteen adult hares (nine females and five males) were tagged with radiocollars and located by triangulation on a daily basis at least once a week. Habitat use was estimated using a geographical information system. The average home range size was 28 ha for males and 24 ha for females. No significant differences were observed between sexes. Significant differences were observed in the use of scrub areas and in dry pastures. During the dry and wet seasons, males and females were most often located in the pastures of the ecotone, rush stands and scrub. The dense bracken (Pteridium aquilinum) and seaside bulrush (Scirpus maritimus) communities were avoided. These results are the first on the spatial ecology of this species in its native habitat.

20

Space use of adult Spanish Imperial Eagles Aquila adalberti

63%

Fernadez M., Oria J., Sanchez R., Gonzalez L. M., Margalida A.

Acta Ornithologica

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2009

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tom 44

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nr 1

The ranges and space use of eight radio-tracked Spanish Imperial Eagles are described. The annual mean range was 25 146 ha during the breeding season (BS) and 20 557 ha in the non-breeding season (NBS). The eagles were found up to 35.9 km away from their nest during BS and nearly 62 km away during NBS. The maximum total distance covered in one day was 113.6 km, with males flying longer distances than females during BS. There was less overlap between ranges during BS, and the mean home range varied from 3881 ha in BS to 2085 ha in NBS. The areas where territorial behaviour (display flights, defence and/or aggression) was observed contained the nest-tree, the most frequently used perches, and the feeding ground nearest to the nest. Breeding home ranges were negatively correlated with densities of Rabbits Oryctolagus cuniculus. Breeding eagles whose home range had low rabbit densities travelled 16.2-28.9 km from their nest to reach distant, undefended feeding grounds with much higher rabbit densities. Our results suggest that home ranges varied with prey density and a bird's reproductive status. Larger breeding ranges are probably related to an increase in energy requirements, while habitat quality is probably a regulatory mechanism of space use. In terms of home range analysis methodology, our observations of eagle behaviour favour Cluster Analysis over Kernel, particularly for defining distant feeding grounds.

Ograniczanie wyników

Home range patterns of male fallow deer Dama dama in a sub-Mediterranean habitat

Estimation of home-range size in small rodents for any truncation of sampling data

Size and overlap of home range in a high density population of the Japanese field vole Microtus montebelli

Home range and nest arrangement of the Siberian flying squirrel Pteromys volans in an urban edge, Northern Japan

Characteristics of habitats used by a female moose in the managed forest area

Home ranges of brown hares in a natural salt marsh: comparisons with agricultural systems

Factors affecting home range size and overlap in Akodon azarae [Muridae: Sigmodontinae] in natural pasture of Argentina

Spatial organization in a small population of the root vole Microtus oeconomus in a linear habitat

Movement pattern and growth ratio tagged fish in two lowland rivers of Central Poland

Home ranges of European mink Mustela lutreola in Southwestern Europe

Ferret badger Melogale moschata activity, movements, and den site use in Southeastern China

Space use in Wagner's gerbil Gerbillus dasyurus in the Negev Highlands, Israel

Home ranges of sympatric soricine shrews in Hokkaido, Japan

Home ranges and movement patterns in a vulnerable polecat Mustela putorius population

Home range size and its development for fallow deer in the Blue Mountains, New Zealand

Home range and activity of the Indian giant flying squirrel (Petaurista philippensis) in Taiwan: influence of diet, temperature, and rainfall

Home range and habitat use by Aquatic Warblers Acrocephalus paludicola on their wintering grounds in Northwestern Senegal

Alternative strategies in the acquisition of home ranges by male pine martens in a high-density population

Heavy flooding effects on home range and habitat selection of free-ranging Iberian hares (Lepus granatensis) in Doñana National Park (SW Spain)

Space use of adult Spanish Imperial Eagles Aquila adalberti