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.

scholarly journals Movements, Habitat Use, and Survival of Nonbreeding Piping Plovers

The Condor ◽  
2001 ◽  
Vol 103 (2) ◽  
pp. 259-267 ◽  
Author(s):  
Katherine R. Drake ◽  
Jonathan E. Thompson ◽  
Kiel L. Drake ◽  
Curt Zonick
Keyword(s):  
Home Range ◽  
Habitat Use ◽  
Annual Cycle ◽  
Site Fidelity ◽  
Home Range Size ◽  
Range Size ◽  
Charadrius Melodus ◽  
Threatened And Endangered Species ◽  
Piping Plovers ◽  
Core Areas

Abstract We studied movements, habitat use, and survival rates of 49 radio-marked Piping Plovers (Charadrius melodus) overwintering along the southern Laguna Madre of Texas during 1997–1998. Plovers exhibited strong site fidelity to nonbreeding areas throughout fall, winter, and spring. Mean home-range size of plovers (based on 95% of locations) was 12.6 km2 with a mean core area (50% of locations) of 2.9 km2. Seasonal home-range size and core areas differed only between fall and winter; home-range and core areas were smaller in fall than winter. Mean linear distance moved was 3.3 km; fall movements were smaller than those made in winter and spring. Habitat use varied seasonally: plovers used algal flats more during fall and spring than during winter; plovers used exposed sand flats more often during winter than in fall and spring. We recorded no mortality of radio-marked birds. High rates of survival and strong site fidelity throughout the nonbreeding period suggest that this period of the annual cycle may not contribute to the declining population size for Piping Plovers wintering in this region. However, because Piping Plovers spend most of the annual cycle on nonbreeding areas, they are likely to be negatively affected by loss of those sites, emphasizing the importance of conserving nonbreeding areas for this threatened and endangered species.

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.

Analysis of movement patterns and macrohabitat use in Hermann’s tortoises (Testudo hermanni hermanni, Gmelin 1789) reintroduced in a coastal area dominated by pinewood in eastern Spain

2016 ◽  
Vol 37 (4) ◽  
pp. 359-371
Author(s):  
Robby Drechsler ◽  
Mercè Vilalta ◽  
Juan S. Monrós
Keyword(s):  
Home Range ◽  
Habitat Use ◽  
Geographic Distribution ◽  
Natural Populations ◽  
Home Ranges ◽  
Isolated Populations ◽  
Body Sizes ◽  
Testudo Hermanni ◽  
Core Areas ◽  
Two Peaks

The Hermann’s tortoise is a strictly European species found mostly in areas with Mediterranean and sub-Mediterranean climes and, especially the subspecies T. hermanni hermanni, has to deal with various threats which reduced its geographic distribution to only a few isolated populations. Thus, with the objective of recovering natural populations of the species, numerous reintroduction projects are being carried out throughout its historical and prehistorical geographic distribution. The aim of our study is to evaluate the success of the T. hermanni reintroduction project carried out in the Albufera de Valencia Natural Park since 2011, through the analysis of movements, home range sizes and habitat use in a new environment. The recorded activity pattern presents two peaks, one in spring and another in August, and the hibernation period (from December to February) is the same as observed in other populations. We did not find significant differences in home range sizes between sexes, but a tight relation between home range sizes and body sizes with larger individuals having larger home ranges. This relation was not observed for core areas (Kernel at 50%). Considering the habitat use, we did not find differences between the groups of individuals we defined, but different types of habitats were used differently. “Scrub” was the most frequented (∼50%), followed by “dunes” (∼20%), “mallaes” (∼20%) and “forest” (<20%). Our results can be used to improve the success of future reintroduction projects by directing ideal habitat, timing and carapace size of released Hermann’s tortoises.

The Habitat Use and Home Range Analysis of Dunlin (Calidris alpina) in Chongming Dongtan, China and their Conservation Implications

Wetlands ◽  
2013 ◽  
Vol 34 (2) ◽  
pp. 255-266 ◽  
Author(s):  
Chiyeung Choi ◽  
Xiaojing Gan ◽  
Ning Hua ◽  
Yong Wang ◽  
Zhijun Ma
Keyword(s):  
Home Range ◽  
Habitat Use ◽  
Range Analysis ◽  
Calidris Alpina ◽  
Conservation Implications ◽  
Home Range Analysis

scholarly journals Radiotelemetry of a female jaú, Zungaro jahu (Ihering, 1898) (Siluriformes: Pimelodidae), passed upstream of Funil Dam, rio Grande, Brazil

2007 ◽  
Vol 5 (2) ◽  
pp. 229-232 ◽  
Author(s):  
Carlos Bernardo Mascarenhas Alves ◽  
Luiz Gustavo Martins da Silva ◽  
Alexandre Lima Godinho
Keyword(s):  
Home Range ◽  
Habitat Use ◽  
Transition Zone ◽  
Conservation Status ◽  
Rio Grande ◽  
Diel Activity ◽  
Main Body ◽  
Daytime Activity ◽  
The Times ◽  
Migratory Movements

Jaú, Zungaro jahu (Ihering, 1898), a large migratory catfish endemic to the rio da Prata basin, has a fragile conservation status and its ecology is poorly known. We radio-tracked a female jaú with a total length of 1.5 m that was passed upstream of Funil Dam, rio Grande, to describe its migratory movements, habitat use, linear home range, and diel activity. To track the fish, we made five tracking trips in the period from April, 2003 to January, 2004. In addition to the main body of Funil Reservoir, the fish also used a reservoir-river transition zone located in a branch of Funil Reservoir that flooded part of rio das Mortes. Most of the times, we found the fish in the former beds of streams flooded by the reservoir, at depths that ranged from 8-9 m in the reservoir-river transition zone to 18-21 m in Funil Reservoir. Linear home range of the fish was 31.4 km. The onset of activity occurred early in the evening, but we also detected daytime activity. The conclusion from our study was that the passed adult female jaú used reservoir habitats, migrated between the main body and the reservoir-river transition zone, preferred deep habitats, showed a relatively short home range, and had diurnal and nocturnal activities.

HOME RANGE AND HABITAT USE OF SUBURBAN RED-SHOULDERED HAWKS IN SOUTHWESTERN OHIO

2001 ◽  
Vol 113 (3) ◽  
pp. 308-316 ◽  
Author(s):  
CHERYL R. DYKSTRA ◽  
JEFFREY L. HAYS ◽  
F. BERNARD DANIEL ◽  
MELINDA M. SIMON
Keyword(s):  
Home Range ◽  
Habitat Use

Snowmobile Effects on Movements of White-tailed Deer: A Case-study

1979 ◽  
Vol 6 (1) ◽  
pp. 45-51 ◽  
Author(s):  
Ronald G. Eckstein ◽  
Thomas F. O'Brien ◽  
Orrin J. Rongstad ◽  
John G. Bollinger
Keyword(s):  
Home Range ◽  
Habitat Use ◽  
Odocoileus Virginianus ◽  
Activity Patterns ◽  
Home Range Size ◽  
Range Size ◽  
Home Ranges

The effects of snowmobile traffic on the winter home-ranges, movements, and activity patterns, of White-tailed Deer (Odocoileus virginianus), were studied during two winters in northern Wisconsin. There were no significant differences in home-range size and habitat use of the Deer in areas with and without snowmobiling. However, snowmobiling caused some Deer to leave the immediate vicinity of the snowmobile trail. Deer were most affected when they were within 61 m of the snowmobile trail.

Dispersal, home-range size, and habitat use of an endangered land snail, the Oregon forestsnail (Allogona townsendiana)

2012 ◽  
Vol 90 (7) ◽  
pp. 875-884 ◽  
Author(s):  
A.B. Edworthy ◽  
K.M.M. Steensma ◽  
H.M. Zandberg ◽  
P.L. Lilley
Keyword(s):  
British Columbia ◽  
Home Range ◽  
Habitat Use ◽  
Land Snail ◽  
Home Range Size ◽  
Dispersal Distance ◽  
Land Snails ◽  
Dispersal Ability ◽  
Suitable Habitat ◽  
Maximum Displacement

Terrestrial molluscs have declined globally, often as a result of habitat loss and fragmentation. Many land snails are poor dispersers and exist in isolated habitat patches. The Oregon forestsnail ( Allogona townsendiana (I. Lea, 1838)) coincides with the most densely populated region of British Columbia and is listed as endangered in Canada. To investigate the dispersal distances and habitat-use patterns of Oregon forestsnails, we tagged and tracked 21 adult snails at Langley, British Columbia, for up to 3 years (2005–2008). The maximum daily dispersal distance for a snail was 4.5 m and the maximum displacement that we observed for a snail was 32.2 m during 3 years. Snails occupied home-range areas of 18.4–404.4 m2, often overlapping both forest and meadow habitat. Their home-range sizes were smaller in habitats with high availability of stinging nettle ( Urtica dioica L.), which may be an indicator of high-quality habitat. Our results suggest that the Oregon forestsnail is a relatively sedentary species with limited dispersal ability in its adult stage. Although Oregon forestsnails are likely unable to colonize suitable habitat independently, remnant forest–meadow mosaic patches such as our study site provide valuable habitat for Oregon forestsnail, which are supplementary to large tracts of intact forest where most of their populations are found.

scholarly journals A Pilot Study on Home Range and Habitat Use of Chinese Goral (Naemorhedus Griseus): Exploring GPS Tracking Data in Cliff Landscape by Three Estimation Methods

2021 ◽  
Author(s):  
yang teng ◽  
Shupei TANG ◽  
lai heda meng ◽  
Liji Wu ◽  
Zhiqing HAN ◽  
...  
Keyword(s):  
Home Range ◽  
Habitat Use ◽  
Estimation Methods ◽  
Conservation Strategies ◽  
Gps Tracking ◽  
Tracking Data ◽  
Size Estimation ◽  
Range Estimation ◽  
Lower Altitude ◽  
Effective Conservation

Abstract Home range size estimation is a crucial basis for developing effective conservation strategies and provides important insights into animal behavior and ecology. This study aimed at analyzing the home range variations, the influence of altitude in habitat selection, and comparing three methods in home range estimation of Chinese gorals (Naemorhedus griseus) living at a cliff landscape. The results indicated that there were significant differences between the annual home range sizes of individual animals but there was no difference in their seasonal home range sizes based on GPS tracking data of five female Chinese gorals from February 2015 to September 2018. The monthly home ranges decreased dramatically in May, June and July due to birth-giving. Notable seasonal variations were found in the micro-habitats of the Chinese gorals, as reflected by the altitude they inhabit, with higher altitude habitats used in spring and lower altitude habitats used in winter. Additionally, the altitude of monthly habitats was lowest in January, which may indicate an adaptation to low air temperature. We also found differences between estimation methods, namely minimum convex polygon (MCP), kernel density estimation (KDE) and α-local convex hull (α-LoCoH), with seasonal home range sizes derived from α-LoCoH being substantially smaller than those derived from MCP and KDE. In conclusion, our findings filled the gaps in home range study for this endangered species and contributed to effective conservation strategies. Considerations shall have to be given to the variations in home range estimation caused by different methods when dealing with rugged habitats, so as to make sure that any interpretation concerning the habitat use of the targeted species made on basis of such results would be meaningful and valid.

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