Prey Preferences and Body Mass Most Influence Movement Behavior and Home Range Area of Komodo Dragons

2021 ◽  
Vol 109 (1) ◽  
Author(s):  
Deni Purwandana ◽  
Claudio Ciofi ◽  
M. Jeri Imansyah ◽  
Achmad Ariefiandy ◽  
Heru Rudiharto ◽  
...  
Keyword(s):  
Home Range ◽  
Body Mass ◽  
Movement Behavior ◽  
Prey Preferences

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 (< 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 Movement behavior of the Monito del monte (Dromiciops gliroides): new insights into the ecology of a unique marsupial

2019 ◽  
Vol 92 (1) ◽  
Author(s):  
Lida M. Franco ◽  
Francisco E. Fontúrbel ◽  
Giovany Guevara ◽  
Mauricio Soto-Gamboa
Keyword(s):  
Home Range ◽  
Body Mass ◽  
Movement Behavior ◽  
Movement Speed ◽  
Activity Period ◽  
Native Plant ◽  
Peak Activity ◽  
Large Variability ◽  
Core Areas ◽  
Males And Females

Abstract Background Behavior and activity patterns largely determine animal’s fitness and their ecological roles. Those patterns depend on many factors, being body mass, sex and age the most relevant in mammals. Particularly, those factors altogether with environmental conditions could influence movement behavior of mammals that hibernate, such as the Monito del monte (Dromiciops gliroides). Methods To evaluate its movement behavior and activity we radio-tracked D. gliroides 12 individuals (8 females and 4 males, corresponding to 5 adults and 7 sub-adults) during the austral summer. With the estimated locations we estimated home ranges, core areas and their relationship with body mass. We also assessed movement speed during early (19:00 to 01:00 h), peak (01:00 to 03:00 h) and late (03:00 to 07:00 h) activity periods. This study was conducted at the San Martín experimental forest (Valdivia, southern Chile). Results Estimated home range areas were 1.04 ± 0.20 ha, and core areas were 0.27 ± 0.06 ha; we found no significant differences between males and females, nor between adults and sub-adults. Home range and core areas were independent of body mass in females but showed positive relationships in males. Core area overlap was larger between sub-adult and adult individuals (35%) than between adult males and females (13%). Average movement D. gliroides speed was 1.45 m/min, reaching its lowest value during the peak activity period (01:00 to 03:00 h), but being faster during early and late activity periods. Those speed differences may be related to travelling and foraging activities. Conclusion Home range and core areas estimated here showed a large variability, which can be related to environmental factors. Home range size was positively correlated with body mass on males but not on females. Also, lower movement speeds at the peak activity period suggest that D. gliroides concentrates feeding activities at this time. As D. gliroides disperses the seeds of at least 16 native plant species, its movement behavior also has important consequences at the community level.

scholarly journals Erratum to: The effect of season, sex and feeding style on home range area versus body mass scaling in temperate ruminants

Oecologia ◽  
2001 ◽  
Vol 128 (2) ◽  
pp. 303-303
Author(s):  
Atle Mysterud ◽  
F. Pérez-Barbería ◽  
Iain Gordon
Keyword(s):  
Home Range ◽  
Body Mass ◽  
Mass Scaling ◽  
Feeding Style

Body mass as a predictive variable of home-range size among Italian mammals and birds

2006 ◽  
Vol 269 (3) ◽  
pp. 317-330 ◽  
Author(s):  
D. Ottaviani ◽  
S. C. Cairns ◽  
M. Oliverio ◽  
L. Boitani
Keyword(s):  
Home Range ◽  
Body Mass ◽  
Home Range Size ◽  
Range Size ◽  
Predictive Variable

The effect of season, sex and feeding style on home range area versus body mass scaling in temperate ruminants

Oecologia ◽  
2001 ◽  
Vol 127 (1) ◽  
pp. 30-39 ◽  
Author(s):  
Atle Mysterud ◽  
F. Javier Pérez-Barbería ◽  
Iain J. Gordon
Keyword(s):  
Home Range ◽  
Body Mass ◽  
Mass Scaling ◽  
Feeding Style

scholarly journals Prevalence and correlates of sleep disorders in Parkinson’s disease: a polysomnographic study

2015 ◽  
Vol 73 (3) ◽  
pp. 241-245 ◽  
Author(s):  
Vanessa Alatriste-Booth ◽  
Mayela Rodríguez-Violante ◽  
Azyadeh Camacho-Ordoñez ◽  
Amin Cervantes-Arriaga
Keyword(s):  
Parkinson’S Disease ◽  
Body Mass Index ◽  
Parkinson's Disease ◽  
Sleep Disorders ◽  
Body Mass ◽  
Behavior Disorder ◽  
Equivalent Dose ◽  
Movement Behavior ◽  
Single Night ◽  
Hypopnea Syndrome

Objective Sleep disorders in Parkinson’s disease are very common. Polysomnography (PSG) is considered the gold standard for diagnosis. The aim of the present study is to assess the prevalence of nocturnal sleep disorders diagnosed by polysomnography and to determine the associated clinical factors. Method A total of 120 patients with Parkinson’s disease were included. All patients underwent a standardized overnight, single night polysomnography. Results Ninety-four (78.3%) patients had an abnormal PSG. Half of the patients fulfilled criteria for sleep apnea-hypopnea syndrome (SAHS); rapid eye movement behavior disorder (RBD) was present in 37.5%. Characteristics associated with SAHS were age (p = 0.049) and body mass index (p = 0.016). Regarding RBD, age (p < 0.001), left motor onset (p = 0.047) and levodopa equivalent dose (p = 0.002) were the main predictors. Conclusion SAHS and RBD were the most frequent sleep disorders. Higher levodopa equivalent dose and body mass index appear to be risk factors for RBD and SAHS, respectively.

scholarly journals Home range - body mass allometry in rabbits and hares (Leporidae)

1986 ◽  
Vol 31 ◽  
pp. 139-148 ◽  
Author(s):  
Robert K. Swihart
Keyword(s):  
Home Range ◽  
Body Mass

scholarly journals Growth and home range size of the gracile mouse opossum Gracilinanus microtarsus (Marsupialia: Didelphidae) in Brazilian cerrado

2010 ◽  
Vol 26 (2) ◽  
pp. 185-192 ◽  
Author(s):  
Fernanda Rodrigues Fernandes ◽  
Leonardo Dominici Cruz ◽  
Eduardo Guimarães Martins ◽  
Sérgio Furtado dos Reis
Keyword(s):  
Home Range ◽  
Body Mass ◽  
Information Criterion ◽  
Mass Gain ◽  
Home Range Size ◽  
Growth Patterns ◽  
Range Size ◽  
Minimum Convex Polygon ◽  
Mass Model ◽  
Proximate Cause

Abstract:Differences in growth patterns between the sexes of the gracile mouse opossum Gracilinanus microtarsus and the consequences for home range size were investigated in a savanna habitat (cerrado) of south-eastern Brazil. A total of 51 juvenile individuals of Gracilinanus microtarsus was monitored using capture–mark–recapture from November 2005 to August 2006. The increase in body mass of gracile mouse opossums was described using the Gompertz growth model. Male gracile mouse opossums grew faster than females (dimorphic ratio of 1.5). Home range size, estimated with the minimum convex polygon method, was positively related to body mass. Model selection using Akaike's Information Criterion (AICc) and incorporating body mass, sex and season as independent variables showed that the best-supported model describing variance in home range sizes included only body mass. Our data suggest that a greater body mass gain in juvenile males is probably the proximate cause of sexual dimorphism in adult gracile mouse opossums and that energetic needs required for growth have a greater influence in home range size.

scholarly journals Space use of wintering waterbirds in India: Influence of trophic ecology on home-range size

2014 ◽  
Vol 60 (5) ◽  
pp. 616-621
Author(s):  
Tsewang Namgail ◽  
John Y. Takekawa ◽  
Sivananinthaperumal Bala-Chandran ◽  
Ponnusamy Sathiyaselvam ◽  
Taej Mundkur ◽  
...  
Keyword(s):  
Home Range ◽  
Body Mass ◽  
Feeding Habits ◽  
Satellite Telemetry ◽  
Space Use ◽  
Home Range Size ◽  
Range Size ◽  
Home Ranges ◽  
Biological Traits ◽  
Indian States

Abstract Relationship between species’ home range and their other biological traits remains poorly understood, especially in migratory birds due to the difficulty associated with tracking them. Advances in satellite telemetry and remote sensing techniques have proved instrumental in overcoming such challenges. We studied the space use of migratory ducks through satellite telemetry with an objective of understanding the influence of body mass and feeding habits on their home-range sizes. We marked 26 individuals, representing five species of migratory ducks, with satellite transmitters during two consecutive winters in three Indian states. We used kernel methods to estimate home ranges and core use areas of these waterfowl, and assessed the influence of body mass and feeding habits on home-range size. Feeding habits influenced the home-range size of the migratory ducks. Carnivorous ducks had the largest home ranges, herbivorous ducks the smallest, while omnivorous species had intermediate home-ranges. Body mass did not explain variation in home-range size. To our knowledge, this is the first study of its kind on migratory ducks, and it has important implications for their conservation and management.

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