scholarly journals Behavior and group movement of proboscis monkey’s (Nasalis larvatus Wurmb.) in Samboja, East Kalimantan

2017 ◽  
Vol 6 (2) ◽  
pp. 169
Author(s):  
Tri Atmoko
Keyword(s):  
Forest Degradation ◽  
Movement Behavior ◽  
Home Ranges ◽  
Nasalis Larvatus ◽  
Fragmented Habitat ◽  
Daily Movement ◽  
East Kalimantan ◽  
Movement Distance ◽  
Instantaneous Sampling ◽  
Behaviour Data

Proboscis monkey (Nasalis larvatus Wurmb.) are endemic primates to the island of Borneo that are subjected to serious problems like habitat loss, fragmentation and forest degradation. Studies of movement behavior of monkeys have been done in the isolated and fragmented habitat in Samboja, East Kalimantan. Behaviour data of feeding, moving, social, resting, and sleeping were collected using instantaneous sampling method. The plots of trees survey were established 20 m x 200 m on each habitat. The movement behavior consists of daily ranging and utilization of height of the canopy. Daily ranging was recorded by GPS and height of canopy utilization divided to 0-3 m, 3.1-6 m, 6.1-9 m, 9.1-12 m, and > 12 m. The results showed that the daily ranging of the monkeys were varied, ranging from 25.7 m– 749.9 m (average 333 m), which home ranges between 4.52 ha – 6.92 ha. Daily movement distance between groups on the three habitat was different. Generally, the monkeys used canopy strata depending on habitat conditions, height, diameter and density of trees.

scholarly journals Estimasi Populasi Orang Utan dan Model Perlindungannya di Kompleks Hutan Muara Lesan Berau, Kalimantan Timur

2007 ◽  
Vol 11 (2) ◽  
pp. 74 ◽  
Author(s):  
M. Bismark
Keyword(s):  
Total Population ◽  
Forest Degradation ◽  
Pongo Pygmaeus ◽  
Movement Behavior ◽  
Conservation Area ◽  
East Kalimantan ◽  
Matter Production ◽  
Covered Area ◽  
Protected Animal ◽  
Orang Utan

<p>Orang utan (Pongo pygmaeus) is a protected animal with restricted distribution was only in Sumatera and Kalimantan. With its restricted habitat and population in the conservation area, the occurrence of forest degradation would have significant impact to the habitat and population of this species, therefore forest area outside conservation area became important for conservation of orang utan. In this matter, production forest had been known as essential ecosystem for orang utan conservation objective. Population of orang utan was studied in Muara Lesan, former Concession Area of PT Alas Helau, Berau, East Kalimantan that covered area of 12,228 ha, with method of nest counting. Nest counting was carried out in transect lines 500-1000 m length. Total length of lines within transect was 28 km, or equal with 5.7 percent of study area. Population density of orang utan in Muara Lesan was between 1.92-7.13 individuals/km&amp;sup2; (average of 3.69 individuals) with total population of 365-450 individuals. Estimation of population by nest counting method was influenced by age of nest (new to 285 days old), potency of food trees, movement behavior, including migration and condition of habitat. Based on its total population, orang utan in this area was categorized as critical. Protection of orang utan habitat and population in Forest Concession Areas of Kalimantan, in its management should determine sufficient conservation area, or should propose essential ecosystem for habitat and population of orang utan in former area of forest concession that was not managed as conservation area.</p><p> </p><p><strong>Abstrak</strong></p><p>Orang utan (Pongo pygmaeus) adalah satwa langka yang dilindungi dengan penyebaran yang sangat terbatas di Sumatera dan Kalimantan. Dengan terbatasnya habitat dan populasi orang utan yang termasuk dalam kawasan konservasi, terjadinya degradasi hutan yang berdampak penting bagi habitat dan populasi, maka kawasan hutan di luar kawasan konservasi menjadi penting untuk pelestarian orang utan. Dalam hal ini hutan produksi telah diketahui sebagai ekosistem esensial untuk tujuan pelestarian. Populasi orang utan yang diteliti di kawasan Muara Lesan eks HPH PT Alas Helau seluas 12.228 ha dilakukan dengan metode penghitungan sarang. Penghitungan sarang dilakukan dalam jalur yang dibuat pada transek 500-1000 m. Dengan panjang total jalur 28 km, areal survei setara dengan 5,7% luas kawasan. Kerapatan populasi orang utan di Muara Lesan berkisar antara 1,92-7,13 individu/km&amp;sup2; (rata-rata 3,69 individu) dengan jumlah total populasi 365-450 individu. Estimasi populasi dengan metode penghitungan sarang ini dipengaruhi oleh umur sarang yang mencapai 285 hari, potensi pohon pakan, perilaku pergerakan, termasuk migrasi serta kondisi habitat. Berdasarkan jumlah total populasi, orang utan di kawasan ini tergolong dalam populasi kritis. Perlindungan habitat dan populasi orang utan di kawasan HPH di Kalimantan, dalam pengelolaannya harus menetapkan wilayah konservasi yang cukup atau mengusulkan ekosistem esensial bagi habitat dan populasi orang utan di areal eks HPH yang tidak dikelola menjadi kawasan konservasi.</p><p> </p>

scholarly journals A Predictive Vehicle Ride Sharing Recommendation System for Smart Cities Commuting

Smart Cities ◽  
2021 ◽  
Vol 4 (1) ◽  
pp. 177-191
Author(s):  
Theodoros Anagnostopoulos
Keyword(s):  
Recommendation System ◽  
Smart Cities ◽  
Urban Pollution ◽  
Real Data ◽  
Movement Behavior ◽  
Daily Movement ◽  
Passenger Transportation ◽  
Ride Sharing ◽  
Mobility Behavior ◽  
User Movement

Smart Cities (or Cities 2.0) are an evolution in citizen habitation. In such cities, transport commuting is changing rapidly with the proliferation of contemporary vehicular technology. New models of vehicle ride sharing systems are changing the way citizens commute in their daily movement schedule. The use of a private vehicle per single passenger transportation is no longer viable in sustainable Smart Cities (SC) because of the vehicles’ resource allocation and urban pollution. The current research on car ride sharing systems is widely expanding in a range of contemporary technologies, however, without covering a multidisciplinary approach. In this paper, the focus is on performing a multidisciplinary research on car riding systems taking into consideration personalized user mobility behavior by providing next destination prediction as well as a recommender system based on riders’ personalized information. Specifically, it proposes a predictive vehicle ride sharing system for commuting, which has impact on the SC green ecosystem. The adopted system also provides a recommendation to citizens to select the persons they would like to commute with. An Artificial Intelligence (AI)-enabled weighted pattern matching model is used to assess user movement behavior in SC and provide the best predicted recommendation list of commuting users. Citizens are then able to engage a current trip to next destination with the more suitable user provided by the list. An experimented is conducted with real data from the municipality of New Philadelphia, in SC of Athens, Greece, to implement the proposed system and observe certain user movement behavior. The results are promising for the incorporation of the adopted system to other SCs.

scholarly journals Movements of Subadult Male Grizzly Bears, Ursus arctos, in the Central Canadian Arctic

2004 ◽  
Vol 118 (2) ◽  
pp. 239 ◽  
Author(s):  
Robert J. Gau ◽  
Philip D. McLoughlin ◽  
Ray Case ◽  
H. Dean Cluff ◽  
Robert Mulders ◽  
...  
Keyword(s):  
Home Range ◽  
Long Range ◽  
Rangifer Tarandus ◽  
Ursus Arctos ◽  
Canadian Arctic ◽  
Grizzly Bears ◽  
Home Ranges ◽  
Adult Males ◽  
Subadult Male ◽  
Daily Movement

Between May 1995 and June 1999, we equipped eight subadult male (3-5 yrs old) Grizzly Bears (Ursus arctos) with satellite radio-collars within a study area of 235,000 km2, centred 400 km northeast of Yellowknife, Northwest Territories, Canada. Subadult male annual home ranges were extraordinarily large (average = 11,407 km2, SE = 3849) due, in part, to their movement's occasional linear directionality. We believe their long-range linear movements may reflect some individuals tracking the migration of Caribou (Rangifer tarandus). Seasonal daily movement patterns were similar to adult males that were previously reported. The areas used by these bears are the largest ranges reported for any Grizzly Bears and the scale of their movements may put individual bears in contact with humans even when developments are hundreds of kilometres from the central home range of an animal.

scholarly journals Movement Patterns of Wintering Grassland Sparrows in Arizona

The Auk ◽  
2000 ◽  
Vol 117 (3) ◽  
pp. 748-759 ◽  
Author(s):  
Caleb E. Gordon
Keyword(s):  
Large Scale ◽  
Radio Telemetry ◽  
Movement Patterns ◽  
Movement Pattern ◽  
Summer Rainfall ◽  
Movement Behavior ◽  
Home Ranges ◽  
Mark Recapture ◽  
Mobile Species ◽  
Study Sites

Abstract I used mark-recapture analysis and radio telemetry to characterize winter movement patterns of six grassland sparrows in southeastern Arizona. Mark-recapture data were generated by banding birds captured during repeated flush-netting sessions conducted on a series of 7-ha plots over three consecutive winters. This resulted in 2,641 captures of 2,006 individual sparrows of the six species. Radio telemetry was conducted concurrently on 20 individuals of four of these species. Recapture data and radio telemetry indicated that Cassin's Sparrow (Aimophila cassinii) and Grasshopper Sparrow (Ammodramus savannarum) were the most sedentary, followed by Baird's Sparrow (Ammodramus bairdii), Vesper Sparrow (Pooecetes gramineus), Savannah Sparrow (Passerculus sandwichensis), and Brewer's Sparrow (Spizella breweri). Grasshopper, Baird's, Savannah, and Vesper sparrows tended to remain within fixed home ranges during winter. With the exception of Savannah Sparrows, whose movement behavior varied among study sites, movement patterns remained constant within species across years and study sites despite radical fluctuations in the absolute and relative abundances of all species. Interspecific differences in movement pattern suggest that species in this system partition niche space according to the regional-coexistence mechanism. Abundances of the most sedentary species, Cassin's, Grasshopper, and Baird's sparrows, were poorly or negatively correlated with summer rainfall at the between-year landscape scale, whereas abundances of the more mobile Savannah, Vesper, and Brewer's sparrows were strongly positively correlated. This is consistent with the theoretical prediction that movement constrains large-scale habitat selection, favoring mobile species in fragmented environments.

Ecology and social biology of the southern three-banded armadillo (Tolypeutes matacus; Cingulata: Chlamyphoridae)

2020 ◽  
Author(s):  
N Attias ◽  
E Gurarie ◽  
W F Fagan ◽  
G Mourão
Keyword(s):  
Home Range ◽  
Body Mass ◽  
Conservation Status ◽  
Species Conservation ◽  
Home Range Size ◽  
Range Size ◽  
Basic Knowledge ◽  
Movement Behavior ◽  
Home Ranges ◽  
Social Biology

Abstract Basic knowledge of species biology and ecology is essential for the assessment of species conservation status and planning for efficient conservation strategies; however, this information is not always readily available. Here we use movement behavior to understand the ecology and social biology of the poorly known southern three-banded armadillo (Tolypeutes matacus). We used VHF and GPS telemetry to monitor 26 individuals from two sites in the Pantanal wetlands of Brazil. We characterized armadillo activity patterns, evaluated the relationship between sex and body mass with home range size and mean daily distance traveled, and examined home and core range overlap. Three-banded armadillos were active on average for 5.5 ± 2.8 h/day, with most of their activity concentrated in the first half of the night. Adult males were heavier and had larger home ranges than adult females. Home range size scaled positively with body mass for males, but not for females. Core ranges for females overlapped little (&lt; 1%) regardless of age, but home ranges for males overlapped both with other males (12%) and females (18%). Our data suggest that three-banded armadillos are mainly a nocturnal species. Home range and spacing patterns point to a generally asocial behavior and a polygynous or promiscuous mating system. We hope that the data generated as a result of this project will contribute to this species’ conservation in Brazil and elsewhere by guiding future management and research efforts.

scholarly journals Movements of the Eastern Ribbonsnake (Thamnophis sauritus) in Nova Scotia

2016 ◽  
Vol 129 (4) ◽  
pp. 379
Author(s):  
T. L. Imlay ◽  
J. Saroli ◽  
T. B. Herman ◽  
S. W. Mockford
Keyword(s):  
Nova Scotia ◽  
Annual Variation ◽  
Prey Availability ◽  
Home Range Size ◽  
Water Levels ◽  
Suitable Habitat ◽  
Home Ranges ◽  
Daily Movement ◽  
The Status ◽  
Best Fit

The disjunct Eastern Ribbonsnake (Thamnophis sauritus) population in southwest Nova Scotia is listed as “threatened” by the committee on the Status of Endangered Wildlife in Canada. A study of the movements of the species at two lakeshore locations known to support a high density of Eastern Ribbonsnakes was undertaken in 2007 and 2008. Average seasonal movements at both sites ranged from 17 m to 84 m for juvenile snakes and 21 m to 130 m for adults; one neonate was recaptured during the study after travelling 32 m. The maximum distance travelled by an individual snake was 391 m in one season. The best-fit model to explain differences in daily movement patterns included year (P = 0.041), indicating that there is annual variation in the movements of this species. Low recapture rates precluded accurate estimates of home-range size, which varied roughly from 0.16 ha to 0.78 ha. Both movements and home ranges were larger than previously documented in Nova Scotia, but maximum distances travelled were consistent with a previous study in Michigan. Most documented movements were along the lakeshore within contiguous, suitable habitat. More work is needed to understand the frequency of large movements and triggers that initiate movements, e.g., changes in water levels, habitat suitability, or prey availability.

Rainbow trout movement behavior and habitat occupancy are influenced by sex and Pacific salmon presence in an Alaska river system

2018 ◽  
Vol 75 (4) ◽  
pp. 525-537 ◽  
Author(s):  
Kevin M. Fraley ◽  
Jeffrey A. Falke ◽  
Megan V. McPhee ◽  
Anupma Prakash
Keyword(s):  
Rainbow Trout ◽  
Multiple Scales ◽  
Pacific Salmon ◽  
River System ◽  
Habitat Characteristics ◽  
Movement Behavior ◽  
Multiscale Approach ◽  
Habitat Occupancy ◽  
Rainbow Trout Oncorhynchus Mykiss ◽  
Movement Distance

We used spatially continuous field-measured and remotely sensed aquatic habitat characteristics paired with weekly ground-based telemetry tracking and snorkel surveys to describe movements and habitat occupancy of adult rainbow trout (Oncorhynchus mykiss) (N = 82) in a runoff-fed, salmon-influenced southcentral Alaska river system. We found that during the ice-free feeding season (June through September) rainbow trout occurrence was associated more with fine-scale (channel unit) characteristics relative to coarse-scale (stream reach) variables. The presence of Pacific salmon (Oncorhynchus spp., which provide an important seasonal food subsidy) and habitat size were particularly useful predictors. Weekly movement distance differed between pre- and postspawning salmon arrival, but did not vary by sex. Habitat quality, season, and the arrival of spawning salmon influenced the likelihood of rainbow trout movement, and fish moved farther to seek out higher-quality habitats. Because rainbow trout respond to habitat factors at multiple scales and seek out salmon-derived subsidies, it will be important to take a multiscale approach in protecting trout and salmon populations and managing the associated fisheries.

Home-range and den use of the mahogany glider, Petaurus gracilis

2000 ◽  
Vol 27 (1) ◽  
pp. 49 ◽  
Author(s):  
Stephen M. Jackson
Keyword(s):  
Home Range ◽  
Dry Season ◽  
Home Ranges ◽  
Adjacent Area ◽  
Wet Season ◽  
Male And Female ◽  
Fragmented Habitat ◽  
Significant Difference ◽  
Socially Monogamous ◽  
Males And Females

The home-range of the mahogany glider was estimated, and its social behaviour examined, by following radio-collared animals over a two-year period within an area of continuous habitat and an adjacent area of fragmented habitat. The average home range within the continuous habitat was 19.25 ha for males and 20.34 ha for females, with male and female pairs occupying a combined area of 23.15 ha. In contrast, the average home range in the fragmented habitat was 11.05 ha for males and 6.80 ha for females, with a combined home-range of male and female pairs being 11.60 ha. The average overlap of the home ranges of paired males and females was 85.9%, compared with approximately 11% for non-paired individuals, which suggests that mahogany gliders are socially monogamous. For a total of 46 nights on which gliders were considered to behave normally for the entire night, the average foraging distance was 1506 m (range 590–3420 m) with no significant difference between males and females in either the continuous or fragmented habitat. There was, however, a significant difference in the distance individuals travelled during different times of the year, with longer distances being travelled during late dry season/wet season and shorter distances during the early to mid dry season. Mahogany gliders also travelled further when there was a high availability of nectar and pollen than when there was lower availability. A total of 83 dens (tree hollows) were recorded for the mahogany glider, with the poplar gum, Eucalyptus platyphylla, forest red gum, Eucalyptus tereticornis, and Clarkson's bloodwood, Corymbia clarksoniana, being most used.

scholarly journals Responding to forest degradation: altered habitat use by Dian's tarsier Tarsius dianae in Sulawesi, Indonesia

Oryx ◽  
2005 ◽  
Vol 39 (2) ◽  
pp. 189-195 ◽  
Author(s):  
Stefan Merker ◽  
Indra Yustian ◽  
Michael Mühlenberg
Keyword(s):  
Anthropogenic Disturbance ◽  
Animal Species ◽  
Forest Degradation ◽  
Home Ranges ◽  
Population Densities ◽  
Human Land Use ◽  
Path Lengths ◽  
Disturbed Forest ◽  
Central Sulawesi ◽  
Travel Distances

As most of the pristine forests of South-east Asia have been lost, the ability of its animal species to coexist with humans becomes increasingly important. Dian's tarsier Tarsius dianae, one of the smallest primates, lives in forests of central Sulawesi, Indonesia that are experiencing a dramatic increase in degradation by humans. To evaluate the effects of anthropogenic disturbance on tarsiers we used a comprehensive approach to estimate habitat suitability for these nocturnal insecthunters. On four study plots along a gradient of human land-use we determined population densities, home range sizes, nightly path lengths and group sizes of T. dianae. In total we captured 71 individuals and radio-tracked 30 of these. In more undisturbed sites, population densities were high and travel distances small. We found the smallest home ranges in slightly disturbed forest. In a heavily disturbed plantation densities were low, and ranges and nightly path lengths were large. These results show that undisturbed and slightly degraded forests are the most suitable tarsier habitats, and that focusing on different population parameters could lead to differing conclusions about the suitability of particular habitats.

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