Home Ranges and Movements of Brown Bears in Plitvice Lakes National Park, Yugoslavia

1986 ◽  
Vol 6 ◽  
pp. 93 ◽  
Author(s):  
Djuro Huber ◽  
Hans U. Roth
Keyword(s):  
National Park ◽  
Home Ranges ◽  
Brown Bears ◽  
Plitvice Lakes

Food Habits of Brown Bears in Plitvice Lakes National Park, Yugoslavia

1987 ◽  
Vol 7 ◽  
pp. 221 ◽  
Author(s):  
Lidija Cicnjak ◽  
Djuro Huber ◽  
Hans U. Roth ◽  
Robert L. Ruff ◽  
Zvonimir Vinovrski
Keyword(s):  
Food Habits ◽  
National Park ◽  
Brown Bears ◽  
Plitvice Lakes

scholarly journals Very Small Home Ranges of Two Gravid European Brown Bears during Hyperphagia

Animals ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 3580
Author(s):  
Laura Schulte ◽  
Daniele De Angelis ◽  
Natarsha Babic ◽  
Slaven Reljić
Keyword(s):  
National Park ◽  
Ursus Arctos ◽  
Brownian Bridge ◽  
Gravid Female ◽  
Food Resource ◽  
Home Ranges ◽  
Movement Model ◽  
Brown Bears ◽  
Feeding Sites ◽  
Brownian Bridge Movement Model

In September 2019, two gravid female brown bears (Ursus arctos) were captured and equipped with GPS/GSM collars in Paklenica National Park (Croatia). Home ranges during hyperphagia were analyzed to describe the spatiotemporal requirements. Mean seasonal home ranges were very small with 9.2 km2 and 7.5 km2 (Brownian Bridge Movement Model 95%). During the tracking period, both bears used different territories and showed little to no use of overlapping area. The bears in our study spent a considerable time in proximity of artificial feeding sites, indicating a probable use of these structures as a food resource (mean 15.7% and 30.7%). Furthermore, the bears approached very close to human structures such as 8.9 m and 4.4 m. As most encounters between humans and bears occur during hyperphagia, it is important to offer refugia from human disturbance, especially as the National Park is not only used by residents, but also by tourists. To adapt management according to the animal’s needs, further studies should include more individuals from different age and sex classes. Both females were gravid. It remains unclear whether gravidity has an effect on the home range and should be further investigated.

scholarly journals Patterns of Diversity and Distribution of Arboreal Social Bees’ Beehives within Chimpanzees’ Home Range in a Forest-Savanna Mosaic (Comoé National Park, Côte d’Ivoire)

Sociobiology ◽  
2019 ◽  
Vol 66 (3) ◽  
pp. 480
Author(s):  
Angele Nicodenin Soro ◽  
Juan Lapuente ◽  
Abduoulaye Ngolo Kone ◽  
Kolo Yeo ◽  
Souleymane Konate
Keyword(s):  
National Park ◽  
Secondary Forest ◽  
Ground Level ◽  
Home Ranges ◽  
Gallery Forest ◽  
Habitat Types ◽  
Social Bees ◽  
Mature Forest ◽  
Forest Island ◽  
Forest Habitats

The goal of this study was to explain the patterns of diversity and distribution of arboreal social bees nesting in forest habitats of the Comoé National park, within the home-ranges of wild chimpanzees that consume their honey. Investigations were done using a total sixteen plots, one hectare each, established in three habitat types (mature forest island, secondary forest island and gallery forest). The diversity and distribution of arboreal social bees was estimated with visuals searches. The exploitation of the beehives of these bee by the chimpanzees was also evaluated using chimpanzees’ honey dipping tools as indicators. Results revealed five bees’ species belonging to two tribes; Meliponini (Meliponula ferruginea, Meliponula togoensis, Meliponula bocandei, Hypotrigona gribodoi) and Apini (Apis mellifera). Frequent exploitation of the honey of stingless bees by the chimpanzees was observed, except for H. gribodoi. Meliponula ferruginea was the most exploited species by chimpanzees. A total of 114 beehives were found in the overall established plots leading to an estimated density of 2.4 beehives/ha in the study area. Among the surveyed habitats, mature forest island was found to harbor the highest beehive density (4.2 beehives/ha), followed respectively by secondary-forest island (1.9 beehives/ha) and gallery forest (1.1 beehives/ha). Finally, all bee species were found nesting in cavities of trees with a DBH ranging from 15 to 87.3 cm, with a special preference for Dialium guinneense. However, the DBH of nesting trees and beehives’ height, measured from the ground level, did not significantly influence the honey exploitation by chimpanzees. In sum bee species diversity and distribution might be important in the survival of chimpanzees of a forest savanna landscape.

scholarly journals Home range sizes for burchell's zebra equus burchelli antiquorum from the Kruger National Park

Koedoe ◽  
1975 ◽  
Vol 18 (1) ◽  
Author(s):  
G.L. Smuts
Keyword(s):  
Home Range ◽  
National Park ◽  
Kruger National Park ◽  
Home Ranges ◽  
Equus Burchelli ◽  
Kruger Park ◽  
Mean Size ◽  
Large Home Range ◽  
The Mean ◽  
Specific Tolerance

Annual home range sizes were determined for 49 marked zebra family groups in the Kruger National Park. Sizes varied from 49 to 566 sq. km, the mean for the Park being 164 square kilometre. Mean home range sizes for different zebra sub-populations and biotic areas were found to differ considerably. Present herbivore densities have not influenced intra- and inter-specific tolerance levels to the extent that home range sizes have increased. Local habitat conditions, and particularly seasonal vegetational changes, were found to have the most profound influence on the shape and mean size of home ranges. The large home range sizes obtained in the Kruger Park, when compared to an area such as the Ngorongoro Crater, can be ascribed to a lower carrying capacity with respect to zebra, large portions of the habitat being sub-optimal, either seasonally or annually.

Do kangaroos exhibit water-focused grazing patterns in arid New South Wales? A case study in Sturt National Park.

2004 ◽  
Vol 26 (1) ◽  
pp. 87 ◽  
Author(s):  
R Montague-Drake ◽  
DB Croft
Keyword(s):  
National Park ◽  
Grazing Pressure ◽  
Line Transect ◽  
Home Ranges ◽  
Infrared Sensors ◽  
South Wales ◽  
Transect Counts ◽  
Vegetation Surveys ◽  
Conservation Values ◽  
Artificial Watering

The density of kangaroos (Macropus spp.) within 5 km of current and former artificial watering points in Sturt National Park (NSW) was studied over a two-year period using the line transect method. Kangaroo densities were not significantly related to water proximity and did not significantly differ between open and closed watering points. Infrared sensors detected and counted kangaroo movements to and from artificial watering points and these were positively correlated with temperature. However, line transect counts did not reveal a shift in kangaroo distributions to water-proximate areas in warmer seasons. The results suggest that kangaroos travel to drink and then return to relatively stable home ranges that take advantage of sites offering the best grazing and resting opportunities. Vegetation surveys, using a wheel point device, revealed that the biomass of Atriplex spp. decreased significantly with increased proximity to artificial watering points, but the biomass of Poaceae spp. and numerous forbs did not. Vegetative diversity was unrelated to water proximity. Low vegetation biomass near artificial watering points in Sturt National Park may be more correctly attributed to the effects from past sheep-grazing pressure, than to any current grazing pressure. The implications of artificial watering point closure on conservation values and nature-based tourism are discussed.

scholarly journals Spatial dynamics and activity patterns of the fosa Cryptoprocta ferox in Ankarafantsika National Park, Madagascar: carnivores navigating a human-influenced landscape

Oryx ◽  
2020 ◽  
Vol 54 (6) ◽  
pp. 837-846
Author(s):  
Eileen Wyza ◽  
Luke Dollar ◽  
Leon Pierrot Rahajanirina ◽  
Viorel Popescu ◽  
Nancy J. Stevens
Keyword(s):  
National Park ◽  
Activity Patterns ◽  
Spatial Dynamics ◽  
Space Use ◽  
Home Range Size ◽  
Home Ranges ◽  
Gps Collars ◽  
Use Patterns ◽  
Cryptoprocta Ferox ◽  
Human Habitation

AbstractThe Vulnerable fosa Cryptoprocta ferox is the largest native carnivore in Madagascar, fulfilling a unique ecological niche in the island's remaining forests. Negative interactions with humans threaten the long-term viability of most remaining fosa populations across Madagascar. Threats to the fosa include habitat loss and persecution by humans resulting from perceived predation on domestic animals. We used GPS collars to record space use and activity patterns of five fosas in Ankarafantsika National Park, Madagascar, during the dry seasons of 2016 and 2017. The results, with up to 2,110 recorded locations per individual, indicated fosas’ home ranges and movements were not limited to the forest, and all collared individuals used networks of habitat patches and corridors to navigate deforested areas. The fosas studied in Ankarafantsika National Park had significantly larger home ranges than those reported in previous studies in other protected areas. They were rarely found within village boundaries and appeared to avoid areas of human habitation, suggesting that during the study period livestock was not a significant component of the fosas’ diet in this Park. Our results suggest that fosas have some flexibility that enables them to adapt to living near deforested and human-dominated areas by altering their space-use patterns, but they are compensating by increasing their home range size.

scholarly journals Use of salmon (Oncorhynchus spp.) by Brown Bears (Ursus arctos) in an Arctic, interior, montane environment

2019 ◽  
Vol 133 (2) ◽  
pp. 151 ◽  
Author(s):  
Mathew S. Sorum ◽  
Kyle Joly ◽  
Matthew D. Cameron
Keyword(s):  
National Park ◽  
Ursus Arctos ◽  
Brown Bear ◽  
The Arctic ◽  
Brooks Range ◽  
Brown Bears ◽  
Arctic Circle ◽  
Aerial Surveys

Salmon (Oncorhynchus spp.) is a key dietary item for temperate coastal Brown Bears (Ursus arctos) across much of their circumpolar range. Brown Bears living in Arctic, interior, and montane environments without large annual runs of salmon tend to be smaller bodied and occur at much lower densities than coastal populations. We conducted ground and aerial surveys to assess whether Brown Bears fished for salmon above the Arctic Circle, in and around Gates of the Arctic National Park and Preserve. Here, we document the use of salmon by interior Brown Bears in the Arctic mountains of the central Brooks Range of Alaska. We believe our findings could be important for understanding the breadth of the species’ diet across major biomes, as well as visitor safety in the park and Brown Bear conservation in the region.

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