scholarly journals Home Range Estimates and Habitat Use of Siberian Flying Squirrels in South Korea

Animals ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1378
Author(s):  
Jong-U. Kim ◽  
Jun-Soo Kim ◽  
Jong-Hoon Jeon ◽  
Woo-Shin Lee
Keyword(s):  
Home Range ◽  
South Korea ◽  
Habitat Use ◽  
Spatial Ecology ◽  
Deciduous Forest ◽  
Ecological Data ◽  
Flying Squirrel ◽  
Daily Movement ◽  
Flying Squirrels ◽  
Radio Transmitters

Conservation measures or management guidelines must be based on species’ ecological data. The home range of the target species was studied to understand its spatial ecology, in order to protect it. The Siberian flying squirrel is the only flying squirrel species present and is considered as a protected species in South Korea. In this study, we investigated the home range, habitat use, and daily movement of Siberian flying squirrels from February 2015 to June 2016 at Mt. Baekwoon, Gangwon Province, South Korea. We tracked 21 flying squirrels using radio transmitters and analyzed the home range of 12 individuals. Flying squirrels appeared to have an overall mean home range of 18.92 ± 14.80 ha with a core area of 3.54 ha ± 3.88 ha. Movement activity peaked between 18:00–19:00 with the longest distance traveled, coinciding with sunset. In addition, we observed the preference of Siberian flying squirrels to the old deciduous forest with dense crowns. The results of the present study indicate that it is important to manage their habitat; for instance, preserving an appropriate size of mature deciduous forest is essential for Siberian flying squirrels. While our study provides needed baseline information on the spatial activity of the species, further research on topics such as the national distribution, behavior, and population dynamics of Siberian flying squirrels is needed in South Korea.

scholarly journals Home range and habitat use of the Vulnerable Virginia northern flying squirrel Glaucomys sabrinus fuscus in the Central Appalachian Mountains, USA

Oryx ◽  
2006 ◽  
Vol 40 (2) ◽  
pp. 204-210 ◽  
Author(s):  
Jennifer M. Menzel ◽  
W. Mark Ford ◽  
John W. Edwards ◽  
Tamara M. Terry
Keyword(s):  
West Virginia ◽  
Home Range ◽  
Habitat Use ◽  
Kernel Method ◽  
High Elevation ◽  
Glaucomys Sabrinus ◽  
Ecosystem Research ◽  
Flying Squirrel ◽  
Northern Hardwood ◽  
Northern Flying Squirrel

The Virginia northern flying squirrel Glaucomys sabrinus fuscus is a Vulnerable sciurid that has experienced a 90% reduction of suitable high elevation boreal montane forest habitat over the last century in the central Appalachians of West Virginia and Virginia, USA. Using radiotelemetry and GIS analyses we examined the species' home range size and habitat use in the Monongahela National Forest, Kumbrabow State Forest and the MeadWestvaco Ecosystem Research Forest in West Virginia during the summers of 2000–2003. The mean home range sizes of male and female squirrels were 54.2 and 15.3 ha, respectively, based on the adaptive kernel method. Euclidean distance analysis indicated the squirrels used spruce, mixed spruce-northern hardwood, and open habitats more than was available across the landscape. Selection of spruce and mixed spruce-northern hardwood habitats indicates that forest management activities designed to restore and increase these types in the central Appalachian landscape are required to conserve and increase this Vulnerable species.

Habitat Use and Foraging Patterns of Molting Male Long-tailed Ducks in Lagoons of the Central Beaufort Sea, Alaska

ARCTIC ◽  
2016 ◽  
Vol 69 (1) ◽  
pp. 19
Author(s):  
Paul L. Flint ◽  
John A. Reed ◽  
Deborah L. Lacroix ◽  
Richard B. Lanctot
Keyword(s):  
Home Range ◽  
Habitat Use ◽  
Beaufort Sea ◽  
Home Range Size ◽  
Oil Field ◽  
Range Size ◽  
Foraging Habitat ◽  
Field Development ◽  
Industrial Oil ◽  
Radio Transmitters

From mid-July through September, 10 000 to 30 000 Long-tailed Ducks (<em>Clangula hyemalis</em>) use the lagoon systems of the central Beaufort Sea for remigial molt. Little is known about their foraging behavior and patterns of habitat use during this flightless period. We used radio transmitters to track male Long-tailed Ducks through the molt period from 2000 to 2002 in three lagoons: one adjacent to industrial oil field development and activity and two in areas without industrial activity. We found that an index to time spent foraging generally increased through the molt period. Foraging, habitat use, and home range size showed similar patterns, but those patterns were highly variable among lagoons and across years. Even with continuous daylight during the study period, birds tended to use offshore areas during the day for feeding and roosted in protected nearshore waters at night. We suspect that variability in behaviors associated with foraging, habitat use, and home range size are likely influenced by availability of invertebrate prey. Proximity to oil field activity did not appear to affect foraging behaviors of molting Long-tailed Ducks.

scholarly journals SPATIAL ECOLOGY AND HABITAT UTILIZATION OF MONTEZUMA QUAIL IN THE DAVIS MOUNTAINS OF TEXAS

2020 ◽  
Vol 72 (1) ◽  
Author(s):  
Curtis D. Greene ◽  
Louis A. Harveson ◽  
Joshua G. Cross ◽  
Ryan S. Luna
Keyword(s):  
Home Range ◽  
Spatial Ecology ◽  
Spatial Scales ◽  
Home Range Size ◽  
Home Ranges ◽  
Limited Information ◽  
Mountain Ranges ◽  
Davis Mountains ◽  
Radio Transmitters ◽  
Montezuma Quail

Abstract Montezuma quail (Cyrtonyx montezumae) occur throughout the desert mountain ranges in the Trans-Pecos of Texas as well as Arizona, New Mexico, and Mexico. Limited information on life history and ecology of the species is available due to the cryptic nature of the bird. Home range, movements, and preferred habitats have been speculated upon in previous literature with the use of observational or anecdotal data. We used innovative trapping techniques and technologically advanced radio transmitters to assess these ecological parameters for Montezuma quail. The goal of this study was to monitor Montezuma quail to determine home range size, movements, and habitat preference for the Davis Mountains population. We captured a total of 72 birds over the course of two years (2009 – 2010) (36M, 35F, 1 Undetermined). Thirteen individuals with &gt;25 locations/bird were used to estimate the home range, movement, and habitat selection analyses. Home ranges (95% kernel density estimators) averaged 12.83 ha and varied greatly (0.02 – 43.29 ha). Maximum straight-line distances between known locations within home ranges varied from 0.73 – 14.83 km. Distances of movements were greater than previously reported. Preferred habitats consisted of Canyon Mountain Savannah and Foothill Slope Mountain Savannah across three spatial scales. Although our study was able to address some basic ecological attributes of Montezuma quail, additional research is warranted to better understand their population dynamics.

scholarly journals Spatial ecology of little egret (Egretta garzetta) in Hong Kong uncovers preference for commercial fishponds

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e9893
Author(s):  
Chun-chiu Pang ◽  
Yik-Hei Sung ◽  
Yun-tak Chung ◽  
Hak-king Ying ◽  
Helen Hoi Ning Fong ◽  
...  
Keyword(s):  
Hong Kong ◽  
Home Range ◽  
Habitat Use ◽  
Spatial Ecology ◽  
Intertidal Mudflat ◽  
Seasonal Movement ◽  
Breeding Habitats ◽  
Natural Wetlands ◽  
Egretta Garzetta ◽  
Wetland Types

Many natural wetlands have been converted to human-influenced wetlands. In some instances, human-influenced wetlands could provide complementary habitats for waterbirds, compensating for the loss of natural wetlands. Inner Deep Bay in Hong Kong is composed of both natural and human-influenced wetlands and is under immense development pressure. From an ecology perspective, we need to understand if different wetland types play the same ecological role. To achieve this, we tracked nine little egrets (Egretta garzetta) using GPS loggers for 14 months to study their spatial ecology, home range, movement and habitat use. We found that over 88% of the home range of all individuals comprised of wetlands (commercial fishponds, mangrove, gei wai, channel, and intertidal mudflat). Among these wetland types, nearly all (seven of nine) individuals preferred commercial fishponds over other habitats in all seasons. Little egrets exhibited seasonal movement and habitat use among seasons, with largest home range, greatest movement, and most frequent visits to commercial fishponds in winter compared to spring and autumn. Our results highlight the significant role of commercial fishponds, providing a feeding ground for little egrets. However, other wetland types cannot be ignored, as they were also used considerably. These findings underscore the importance of maintaining a diversity of wetland types as alternative foraging and breeding habitats.

scholarly journals SPATIAL ECOLOGY AND HABITAT USE OF THE WESTERN MASSASAUGA (SISTRURUS TERGEMINUS) IN NEBRASKA

2016 ◽  
pp. 31-38
Author(s):  
Tracy J. Patten ◽  
Daniel D. Fogell ◽  
James D. Fawcett
Keyword(s):  
Habitat Use ◽  
Land Management ◽  
Spatial Ecology ◽  
Management Practices ◽  
Management Planning ◽  
Seasonal Movements ◽  
Active Season ◽  
Daily Movement ◽  
Spring Emergence

We used radiotelemetry during 2004 and 2005 to investigate seasonal movements and habitat use and to improve our understanding of how land management practices were affecting Western Massasauga (Sistrurus tergeminus) populations in Nebraska. We found Western Massasaugas to brumate in crayfish burrows 100% of the time, and spring emergence occurred during March - April. The longest movements occurred during May when snakes were moving away from brumation sites to summer habitat, after which movements decreased until a second peak in August. We did not find significant differences between male and female activity area, range length, total distance moved, daily movement, or distance from spring and fall brumation sites. However the core activity range of females was significantly less than that of males. During the active season, grassland habitat was used 75.6% of the time compared to habitats of grassland-shrubs (10.7%), hydrophilic vegetation (9.1%), woodlands (3.1%), and shrublands (1.5%). Identifying variations in a species spatial ecology is important for achieving long-term conservation goals because life history events, resource availability, and land management practices may have an effect on seasonal movements and habitat use. The results of our study demonstrate the need for, and some of the necessary data for, improved land management planning in order to meet conservation needs of the Western Massasauga in Nebraska.

Black Bass Diversity: Multidisciplinary Science for Conservation

2015 ◽  
Keyword(s):  
Home Range ◽  
Habitat Use ◽  
Woody Debris ◽  
Life History Strategies ◽  
Lateral Movement ◽  
Daily Movement ◽  
Black Bass ◽  
Core Areas ◽  
High Flows ◽  
Redeye Bass

<em>Abstract</em>.—Little is known about the movement and habitat use of Alabama Bass <em>Micropterus henshalli</em> and Redeye Bass <em>M. coosae</em>, especially in response to altered flow regimes resulting from hydropeaking operations. Therefore, 22 Alabama Bass and 20 Redeye Bass were implanted with radio tags and tracked every 3 weeks for 37 weeks from December 2010 to September 2011 to describe seasonal patterns in movement and habitat use in the Tallapoosa River, Alabama, below R. L. Harris Dam. Additionally, fish of each species were tracked weekly every 2 h over the course of 10 h to assess the effects of altered flows on movement and habitat use by the two species during different periods of the hydrograph (base, rising, peak, and falling flows). Movement of both species was strongly associated with season, with the highest movement in the spring. Total home range (95%) and core areas (50%) of both species were similar, but Redeye Bass total home range was inversely related to fish size. Alabama Bass were typically found in fine-sediment substrates and increasingly used more woody debris for cover from winter to summer, whereas Redeye Bass were typically found in rocky substrate and only used woody debris in summer. Neither Alabama Bass nor Redeye Bass daily movement appeared to be affected by the altered flow; however, Alabama Bass were found closer to shore in vegetated or woody debris habitat during high flows in spring and summer. In contrast, Redeye Bass showed little lateral movement in the river or change in habitat use in response to higher flows in most seasons but, similar to Alabama Bass, were found in shoreline vegetated habitats more often during high flows in spring. These shifts in habitat during different flows should be further investigated to evaluate possible life-history strategies.

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