Home Range, Site Fidelity, and Movement Patterns of the Wood Turtle (Glyptemys insculpta) at the Southwestern Edge of Its Range

2021 ◽  
Vol 20 (2) ◽  
Author(s):  
Joshua G. Otten ◽  
Austin C. Hulbert ◽  
Samuel W. Berg ◽  
Jeffrey W. Tamplin
Keyword(s):  
Home Range ◽  
Site Fidelity ◽  
Movement Patterns ◽  
Glyptemys Insculpta ◽  
Wood Turtle

Home range and movements of a wood turtle (Clemmys insculpta) population at the northern limit of its range

2002 ◽  
Vol 80 (3) ◽  
pp. 402-408 ◽  
Author(s):  
Martin Arvisais ◽  
J -C Bourgeois ◽  
E Lévesque ◽  
C Daigle ◽  
D Masse ◽  
...  
Keyword(s):  
Home Range ◽  
Site Fidelity ◽  
Home Ranges ◽  
Buffer Strips ◽  
Northern Limit ◽  
Seasonal Movements ◽  
Active Season ◽  
Wood Turtles ◽  
Wood Turtle

We studied the home ranges and seasonal movements of 20 wood turtles (Clemmys insculpta) living near the northern limit of their distribution in the Mauricie region, Quebec, Canada. We found average home-range areas of 28.3 ha. Wood turtles showed site fidelity; there was an average overlap of 60.7% in their home ranges, and 88.8% of the home-range centroids were not significantly different for the 2 years of the study. The home ranges were larger than those reported from studies in more southerly locations, leading us to hypothesize larger home-range territories with increasing latitude. Our analyses indicate that turtle movements could be grouped into four distinct activity periods during the active season: the prenesting, nesting, postnesting, and prehibernation periods. We found that wood turtles were closely associated with streams. Based on the importance of this habitat for the species, we suggest the establishment of protected buffer strips along streams used by wood turtles.

scholarly journals Site fidelity and movement of Chelonoidis carbonaria (Spix, 1824) (Testudinidae) in cocoa plantations in southeastern Brazil

2014 ◽  
Vol 74 (3 suppl 1) ◽  
pp. S135-S141
Author(s):  
JF Borini ◽  
BB Petrucci ◽  
W Krohling ◽  
JL Rossi Júnior ◽  
MRD Santos ◽  
...  
Keyword(s):  
Home Range ◽  
Site Fidelity ◽  
Radio Telemetry ◽  
Movement Patterns ◽  
Release Site ◽  
Southeastern Brazil ◽  
Natural Conditions ◽  
Behavioural Analysis ◽  
Forest Remnants ◽  
Radio Transmitters

Red-footed Tortoises (Chelonoidis carbonariaSpix, 1824) raised as pets and voluntarily handed over to environmental officers by their owners or apprehended by officers represent a large contingent of animals that overfill triage centres in Brazil. There is no consensus on the fate of these animals, and their numbers continue growing. In this study, we evaluated the movement patterns of C. carbonaria originating from triage centres in areas of cocoa plantations and forest remnants to define their home range and dispersion. After 120 days of quarantine and acclimatisation, eight C. carbonaria adults were released and monitored via radio telemetry for 10 months. The radio transmitters of two individuals presented problems, and consequently, it was not possible to track these individuals. Five individuals remained in an area of 7.75 ha 10 months after release, avoiding contact with humans after the first three months. The greatest problems were the proximity of individuals to inhabited areas in the first three months after release, the death of two individuals, and the escape of one individual. After the experiment, the animals were sent back to the triage centre. Our results suggest that a proportion of the animals in the triage centres are able to survive in natural conditions. Considering their survival and fidelity to the release site, the translocation of animals described herein should be considered partially successful. However, if this measure is adopted, it must be preceded by studies of the animals' origins and by a rigorous genetic, sanitary and behavioural analysis of each individual.

scholarly journals Green morays (Gymnothorax funebris) have sedentary ways in mangrove bays, but also ontogenetic forays to reef enclaves

2021 ◽  
Author(s):  
Matthew S. Kendall ◽  
Laughlin Siceloff ◽  
Ashley Ruffo ◽  
Arliss Winship ◽  
Mark E. Monaco
Keyword(s):  
Home Range ◽  
Site Fidelity ◽  
Home Range Size ◽  
Range Size ◽  
Caribbean Region ◽  
History Of ◽  
High Site ◽  
Single Night ◽  
Exploratory Movements ◽  
Moray Eel

AbstractSurprisingly, little is known about basic life history of the largest moray eel species in the Caribbean region, the green moray eel (Gymnothorax funebris). Sixteen eels were captured from the mangrove fringe in multiple bays on St. Croix, USVI, implanted with coded acoustic transmitters, and their movements were tracked for up to 11 months using an array of 37 stationary acoustic receivers. They exhibited high site fidelity in the bays during their residence, using the same general parts of individual bays and did not switch bays except for one individual. There was no relationship between eel size (mean TL = 83 cm, range = 54–126 cm) and home range size (mean area of 95% KUD = 5.8 ha ± 0.7 SE). Most individuals were more frequently detected at night than during the day suggesting greater nocturnal activity. Several of the larger eels (mean TL = 93 cm ± 5.9 SE) showed clear and permanent emigration tracks out of the mangrove estuary to coral reef habitats offshore. For some individuals, these habitat shifts were preceded by exploratory movements away from the eel’s typical home range the night before emigration. All final emigration events took place nocturnally, happened during a single night, and occurred during months from December to May. Mean emigration speed was 3.4 km/h. This study is the first documentation of an ontogenetic habitat shift in moray eels, as well as the first determination of home range size for this species and their site fidelity in mangrove habitats.

Movement patterns of feral predators in an arid environment – implications for control through poison baiting

2009 ◽  
Vol 36 (5) ◽  
pp. 422 ◽  
Author(s):  
K. E. Moseby ◽  
J. Stott ◽  
H. Crisp
Keyword(s):  
Home Range ◽  
Sand Dunes ◽  
Activity Patterns ◽  
Movement Patterns ◽  
Home Range Size ◽  
Range Size ◽  
Home Ranges ◽  
Feral Cats ◽  
Poison Baiting ◽  
Specific Variation

Control of introduced predators is critical to both protection and successful reintroduction of threatened prey species. Efficiency of control is improved if it takes into account habitat use, home range and the activity patterns of the predator. These characteristics were studied in feral cats (Felis catus) and red foxes (Vulpes vulpes) in arid South Australia, and results are used to suggest improvements in control methods. In addition, mortality and movement patterns of cats before and after a poison-baiting event were compared. Thirteen cats and four foxes were successfully fitted with GPS data-logger radio-collars and tracked 4-hourly for several months. High intra-specific variation in cat home-range size was recorded, with 95% minimum convex polygon (MCP) home ranges varying from 0.5 km2 to 132 km2. Cat home-range size was not significantly different from that of foxes, nor was there a significant difference related to sex or age. Cats preferred habitat types that support thicker vegetation cover, including creeklines and sand dunes, whereas foxes preferred sand dunes. Cats used temporary focal points (areas used intensively over short time periods and then vacated) for periods of up to 2 weeks and continually moved throughout their home range. Aerial baiting at a density of 10 baits per km2 was ineffective for cats because similar high mortality rates were recorded for cats in both baited and unbaited areas. Mortality was highest in young male cats. Long-range movements of up to 45 km in 2 days were recorded in male feral cats and movement into the baited zone occurred within 2 days of baiting. Movement patterns of radio-collared animals and inferred bait detection distances were used to suggest optimum baiting densities of ~30 baits per km2 for feral cats and 5 per km2 for foxes. Feral cats exhibited much higher intra-specific variation in activity patterns and home-range size than did foxes, rendering them a potentially difficult species to control by a single method. Control of cats and foxes in arid Australia should target habitats with thick vegetation cover and aerial baiting should ideally occur over areas of several thousand square kilometres because of large home ranges and long-range movements increasing the chance of fast reinvasion. The use of temporary focal points suggested that it may take several days or even weeks for a cat to encounter a fixed trap site within their home range, whereas foxes should encounter them more quickly as they move further each day although they have a similar home-range size. Because of high intra-specific variability in activity patterns and home-range size, control of feral cats in inland Australia may be best achieved through a combination of control techniques.

Characterizing Wood Turtle (Glyptemys insculpta) Populations at the Northwestern Periphery of the Species' Range in Canada

2018 ◽  
Vol 25 (4) ◽  
pp. 571-586
Author(s):  
Jennifer Cross ◽  
Robert Cross ◽  
Derek Chartrand ◽  
Dean G. Thompson
Keyword(s):  
Species Range ◽  
Glyptemys Insculpta ◽  
Wood Turtle

Habitat effects on home range and schooling behaviour in a herbivorous fish (Kyphosus bigibbus) revealed by acoustic tracking

2017 ◽  
Vol 68 (8) ◽  
pp. 1454 ◽  
Author(s):  
R. D. Pillans ◽  
R. C. Babcock ◽  
D. P. Thomson ◽  
M. D. E. Haywood ◽  
R. A. Downie ◽  
...  
Keyword(s):  
Home Range ◽  
Patch Reef ◽  
Movement Patterns ◽  
Herbivorous Fish ◽  
Ecological Role ◽  
Patch Reefs ◽  
Poor Understanding ◽  
Schooling Behaviour ◽  
Acoustic Tags

Large mobile herbivorous fish that specialise in browsing large brown algae are particularly important on coral reefs because their activities mediate algal–coral competition. Despite this important ecological role, we have a poor understanding of the movement patterns of such large herbivorous fish, including Kyphosus bigibbus. Nineteen K. bigibbus captured near adjacent but distinct patch reefs were tagged with internal acoustic tags and their movements monitored for up to 20 months by an array of 60 acoustic receivers. Home-range estimates showed that movements of individuals from each patch reef encompassed different spatial extents and resulted in differences in habitat used by the two groups of fish. The average 50 and 95% kernel utilisation distribution for long-term resident fish was 0.27±0.03 and 1.61±0.30km2 respectively, ranges that represent the largest values for a herbivorous coral reef fish recorded to date. There was a significantly higher degree of fidelity among fish from the same school, and to particular patch reefs, despite the proximity of the reefs and substantial overlap between schools of conspecifics. A coefficient of sociality was used on pairs of fish and showed that there was no evidence that individuals were consistently detected together when they were detected by receivers away from their home reef. The variability of movement patterns among individuals of K. bigibbus results in an increased niche footprint for this important browser, potentially increasing reef resilience.

Movement Patterns and Home Range in the Common Opossum (Didelphis marsupialis)

1987 ◽  
Vol 68 (1) ◽  
pp. 173-176 ◽  
Author(s):  
M. E. Sunquist ◽  
S. N. Austad ◽  
F. Sunquist
Keyword(s):  
Home Range ◽  
Movement Patterns ◽  
The Common

Where to go when all options are terrible: Ranging behavior of sloths in central Amazonian flooded igapó forests

2021 ◽  
Author(s):  
Matheus Castro ◽  
Renann Dias-Silva ◽  
Adrian Barnett
Keyword(s):  
Home Range ◽  
Abiotic Factors ◽  
Movement Patterns ◽  
Ranging Behavior ◽  
Forage Production ◽  
Leaf Production ◽  
Main Driver ◽  
Young Leaves ◽  
Bradypus Variegatus ◽  
Seasonally Flooded

Ranging behaviors performed by animals are influenced by both biotic and abiotic factors. For herbivorous mammals, seasonality in forage production is considered to be the main driver of movement patterns. Here, we investigated the home range and movement in one of the most abundant herbivores in the Americas, and their relationship with plant phenology in an Amazon igapó - a seasonally-flooded riverine forests with strongly-pulsed leaf-production phenology. Using a combination of telemetry and phenological analysis, the study recorded movement patterns of five brown throated three toed sloths (Bradypus variegatus Schinz, 1825) over a six months period, and related these to seasonal and within-forest differences in food availability via monitoring young leaf production of 570 trees. All monitored animals were shown to be permanently resident within igapó flooded forest, maintaining their home range even during flood periods when most trees lacked leaves. We found that seasonal variation in leaf production had no effect on the extent of displacement of the sloths. Accordingly, for herbivores with low metabolism, variation in young leaves availability may not be the main driver of their ranging behavior. In addition, an arboreal habit and well-developed swimming capacity allow igapó sloths to occupy a niche ecologically inaccessible to other mammals.

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