Linear Home Range, Movement, and Spatial Distribution of the Suwannee Cooter (Pseudemys concinna suwanniensis) in a Blackwater River

2010 ◽  
Vol 9 (2) ◽  
pp. 196-204 ◽  
Author(s):  
Yurii V. Kornilev ◽  
C. Kenneth Dodd ◽  
Gerald R. Johnston
Keyword(s):  
Spatial Distribution ◽  
Home Range ◽  
Blackwater River

Spatial Distribution, Site Fidelity, and Home Range Overlap in the North Cascades Elk Herd: Implications for Management

2018 ◽  
Vol 92 (4) ◽  
pp. 251
Author(s):  
Jennifer Sevigny ◽  
Michael Sevigny ◽  
Emily George-Wirtz ◽  
Amanda Summers
Keyword(s):  
Spatial Distribution ◽  
Home Range ◽  
Site Fidelity ◽  
North Cascades ◽  
Home Range Overlap ◽  
The North ◽  
Range Overlap

scholarly journals Monitoring lidia cattle with GPS-GPRS technology; a study on grazing behaviour and spatial distribution

2017 ◽  
Vol 4 (4) ◽  
Author(s):  
Juan Manuel Lomillos Pérez ◽  
Marta Elena Alonso de la Varga ◽  
Juan José García ◽  
Vicente Ramiro Gaudioso Lacasa
Keyword(s):  
Spatial Distribution ◽  
Home Range ◽  
Cattle Breed ◽  
General Packet Radio Service ◽  
Pasture Management ◽  
Grazing Cattle ◽  
Position Data ◽  
Grazing Area ◽  
Different Dimensions ◽  
Grazing Behaviour

Veterinaria México OA ISSN: 2448-6760Cite this as:Lomillos Pérez JM, Alonso de la Varga ME, García JJ, Gaudioso Lacasa VR. Monitoring lidia cattle with GPS-GPRS technology; a study on grazing behaviour and spatial distribution. Veterinaria México OA. 2017;4(4). doi:10.21753/vmoa.4.4.405.The behavior of grazing cattle has not been studied as much as farmed animals. In certain breeds, reared in extensive systems, human presence can cause an interruption or modification in their ethological patterns moving away from the person watching them. The use of technologies like a Global Position System and a General Packet Radio Service (GPS-GPRS) allows monitoring bovine animals exploited in extensive systems, providing information in real time about distances traveled, home range grazing areas, frequented territories, behavior patterns, etc. In the present work, GPS-GPRS collars were used to monitor 21 cows of to the lidia cattle breed, with different ages, and from three different herds in the Salamanca province (Spain). The study lasted 8 months, the animals being distributed in enclosures of different dimensions and orographic characteristics, geographic position data being collected every 15 minutes. The proper functioning of the GPS-GPRS devices was proven and home range grazing area for each animal has been calculated, with an average of 56 hectares. A graph of animals’ circadian rhythm with the distances traveled for hours has been developed. A trend was observed to start daily activity hours before dawn, diminishing its activity with the evening and overnight, with a night’s rest phase of about 7 hours. We also report daily distance traveled (3.15 km on average), finding differences depending on age, available space allowance/animal, daylight and theseason. Our results could be of relevance for a better pasture management using enclosures of size that increase the use of all the surface available.Figure 3. Image of fencing No. 5 positions of the 3 animals monitored. Red, Yellow, Blue.

scholarly journals Long-term spatial stability of coyote (Canis latrans) home ranges in southeastern Colorado

2000 ◽  
Vol 78 (3) ◽  
pp. 458-464 ◽  
Author(s):  
Ann M Kitchen ◽  
Eric M Gese ◽  
Edward R Schauster
Keyword(s):  
Spatial Distribution ◽  
Home Range ◽  
Canis Latrans ◽  
Core Area ◽  
Home Ranges ◽  
Spatial Stability ◽  
Long Term Stability ◽  
Period 2 ◽  
Territorial Boundaries

Long-term stability of territorial boundaries has not been well documented in canids. To evaluate the prevalence of long-term spatial stability of coyote (Canis latrans) home ranges, we compared the overlap of territorial boundaries and the spatial distribution of telemetry locations of packs in southeastern Colorado. From August 1983 to July 1988 (period 1), 16 coyotes from six packs were radio-tracked. From April 1996 to August 1997 (period 2), 12 coyotes from six packs were captured and tracked in the same area. Mean percentage of overlap of pack ranges was 89.8 ± 8.3% (±SD) for period 1 ranges over period 2 ranges and 55.8 ± 14.4% for period 2 ranges over period 1 ranges. Mean percentage of overlap of the 30% core area of the home ranges was 65.2 ± 13.9% for those of period 1 over those of period 2 and 66.3 ± 28.7% for those of period 2 over those of period 1. Despite substantial overlap of home-range and core-use areas, there were significant differences in the distribution of locations between periods in five of six home ranges. This suggests that, although packs are faithful to one site (i.e., boundaries remain similar over a period of years), their use of the site (i.e., distribution of locations within the range) may change temporally.

Ecology of a Speleomantes ambrosii population inhabiting an artificial tunnel

1994 ◽  
Vol 15 (1) ◽  
pp. 35-45 ◽  
Author(s):  
Federico Melodia ◽  
Sebastiano Salvidio ◽  
Maria Tavano ◽  
Mauro Valerio Pastorino ◽  
Aldo Lattes
Keyword(s):  
Spatial Distribution ◽  
Home Range ◽  
Food Item ◽  
Food Abundance ◽  
Main Food ◽  
Juvenile Recruitment ◽  
Microhabitat Heterogeneity ◽  
Nw Italy ◽  
Main Food Item

AbstractA Speleomantes ambrosii population living in an artificial tunnel in NW Italy was studied for two consecutive years. Activity on the walls varied cyclically in relation to seasonal temperatures and food abundance. The main food item was the trogloxenic dipteran Limonia nubeculosa, which accounted for more than 80% of the total ingested prey by volume. Juvenile cave salamanders had a broader trophic nich than adults. Oviposition and juvenile recruitment appeared to be seasonal. The spatial distribution inside the tunnel was related to microhabitat heterogeneity and particularly to the distance from the entrance. Juveniles were observed outside or close to the entrance more often than adults. Movement of adult salamanders were generally low and averaged 7 cm/day; some repeatedly recaptured individuals had a mean home range of 6 m2.

Male-female spacing patterns in the lizard, Sceloporus virgatus

1999 ◽  
Vol 20 (2) ◽  
pp. 185-194 ◽  
Author(s):  
Allison J. Abell
Keyword(s):  
Spatial Distribution ◽  
Home Range ◽  
Mating Success ◽  
Home Ranges ◽  
Male Mating ◽  
Male Mating Success ◽  
Single Male ◽  
Home Range Overlap ◽  
Range Overlap ◽  
Sceloporus Virgatus

AbstractThe spatial distribution of Sceloporus virgatus in the Chiricahua Mountains of Arizona was studied during the breeding season. Male home ranges were, on average, more than four times larger than those of females. Home range overlap of both sexes was extensive, with most individuals overlapping multiple males and multiple females. Home range overlap of males with females was significantly correlated with an independently calculated estimate of male mating success. For most females (71%), one of the males overlapped a substantially larger portion of her home range than any other male. Similarly, for most females (76%) a single one of the overlapping males courted the female more often or was sighted at closer distances to the female. The remaining females did not associate primarily with a single male.

Lithography below 100 nm

1983 ◽  
Vol 41 ◽  
pp. 96-99
Author(s):  
L. D. Jackel
Keyword(s):  
Spatial Distribution ◽  
Electron Beam ◽  
Electron Scattering ◽  
Electron Beam Lithography ◽  
Substrate Material ◽  
Local Electron ◽  
Electron Dose ◽  
Positive Resist ◽  
Exposure Process

Most production electron beam lithography systems can pattern minimum features a few tenths of a micron across. Linewidth in these systems is usually limited by the quality of the exposing beam and by electron scattering in the resist and substrate. By using a smaller spot along with exposure techniques that minimize scattering and its effects, laboratory e-beam lithography systems can now make features hundredths of a micron wide on standard substrate material. This talk will outline sane of these high- resolution e-beam lithography techniques.We first consider parameters of the exposure process that limit resolution in organic resists. For concreteness suppose that we have a “positive” resist in which exposing electrons break bonds in the resist molecules thus increasing the exposed resist's solubility in a developer. Ihe attainable resolution is obviously limited by the overall width of the exposing beam, but the spatial distribution of the beam intensity, the beam “profile” , also contributes to the resolution. Depending on the local electron dose, more or less resist bonds are broken resulting in slower or faster dissolution in the developer.

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