scholarly journals Sex and Age Effects on Monk Parakeet Home-Range Variation in the Urban Habitat

Diversity ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 648
Author(s):  
Juan Carlos Senar ◽  
Aura Moyà ◽  
Jorge Pujol ◽  
Xavier Tomas ◽  
Ben J. Hatchwell
Keyword(s):  
Invasive Species ◽  
Home Range ◽  
Home Range Size ◽  
Range Size ◽  
Good News ◽  
Urban Habitat ◽  
Monk Parakeet ◽  
Myiopsitta Monachus ◽  
Small Home Range ◽  
Range Variation

Home-range size is a key aspect of space-use, and variation in home-range size and structure may have profound consequences for the potential impact of damage and control strategies for invasive species. However, knowledge on home-range structure of naturalized parrot species is very limited. The aim of this study was to quantify patterns of home-range variation according to sex and age of the monk parakeet Myiopsitta monachus, an invasive parakeet in Europe. Mean kernel home-range size was 12.4 ± 1.22 ha (range 1.7–74.1 ha; N = 73 birds). Juveniles had a larger home-range size than adults, but sexes did not differ in kernel home-range size. The mean maximum distance moved by monk parakeets was 727 ± 37.0 m (range: 150–1581 m), and it was not dependent on either the sex or age of the birds. Having a small home range is one of the conditions for the feasible eradication of an invasive species; hence, the small home range of urban monk parakeets that we report here is good news for pest managers. However, this small home-range size can limit the effectiveness of culling operations with traps or feeders with contraceptives or poison, and other alternatives, such as funnel nets or traps, should be used.

scholarly journals Distribution patterns of invasive Monk parakeets (Myiopsitta monachus) in an urban habitat

2012 ◽  
Vol 35 (1) ◽  
pp. 107-117
Author(s):  
R. Rodríguez–Pastor ◽  
◽  
J. C. Senar ◽  
A. Ortega ◽  
J. Faus ◽  
...  
Keyword(s):  
Invasive Species ◽  
Distribution Patterns ◽  
Food Sources ◽  
Urban Habitat ◽  
Urban Habitats ◽  
Monk Parakeet ◽  
Landscape Characteristics ◽  
Myiopsitta Monachus ◽  
Preferred Habitat ◽  
Marked Preference

Several invasive species have been shown to have a marked preference for urban habitats. The study of the variables responsible for the distribution of these species within urban habitats should allow to predict which environmental variables are indicative of preferred habitat, and to design landscape characteristics that make these areas less conducive to these species. The Monk parakeet Myiopsitta monachus is an invasive species in many American and European countries, and cities are one of its most usual habitats in invaded areas. The aim of this paper was to identify the main factors that determine distribution of the Monk parakeet in Barcelona, one of the cities in the world with the highest parakeet density. We defined our model based on eight preselected variables using a generalized linear model (GLZ) and evaluated the strength of support for each model using the AIC–based multi–model inference approach. We used parakeet density as a dependent variable, and an analysis restricted to occupied neighbourhoods provided a model with two key variables to explain the distribution of the species. Monk parakeets were more abundant in neighbourhoods with a high density of trees and a high percentage of people over 65 years. This is interpreted by the fact that parakeets use trees as food sources and support for the nests, and that older people often feed the species. Data support the ‘human–activity’ hypothesis to explain how invasive species can successfully establish in a non–native habitat, and stress how limiting food resources, especially food supplied by humans, may be the easiest way to exert some control on Monk parakeet populations.

Foraging Habitat, Home-Range Size and Diet of a Mediterranean Bat Species, Savi's Pipistrelle

2019 ◽  
Vol 20 (2) ◽  
pp. 351
Author(s):  
Marina Kipson ◽  
Martin Šálek ◽  
Radek Lučan ◽  
Marcel Uhrin ◽  
Edita Maxinová ◽  
...  
Keyword(s):  
Home Range ◽  
Home Range Size ◽  
Range Size ◽  
Foraging Habitat

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.

Resource availability drives variation in a marsupial glider’s home‐range size

2021 ◽  
Author(s):  
A. M. Stobo‐Wilson ◽  
T. Cremona ◽  
B. P. Murphy ◽  
S. M. Carthew
Keyword(s):  
Home Range ◽  
Resource Availability ◽  
Home Range Size ◽  
Range Size

Personality and behavioral syndromes in two Peromyscus species: presence, lack of state dependence, and lack of association with home range size

2021 ◽  
Vol 75 (1) ◽  
Author(s):  
Victoria Underhill ◽  
Gregory G. Pandelis ◽  
Jeremy Papuga ◽  
Anne C. Sabol ◽  
Austin Rife ◽  
...  
Keyword(s):  
Home Range ◽  
State Dependence ◽  
Home Range Size ◽  
Range Size ◽  
Behavioral Syndromes

scholarly journals Free-Ranging Farm Cats: Home Range Size and Predation on a Livestock Unit In Northwest Georgia

PLoS ONE ◽  
2015 ◽  
Vol 10 (4) ◽  
pp. e0120513 ◽  
Author(s):  
Susanna E. Kitts-Morgan ◽  
Kyle C. Caires ◽  
Lisa A. Bohannon ◽  
Elizabeth I. Parsons ◽  
Katharine A. Hilburn
Keyword(s):  
Home Range ◽  
Home Range Size ◽  
Range Size ◽  
Free Ranging

scholarly journals Swift Foxes and Ideal Free Distribution: Relative Influence of Vegetation and Rodent Prey Base on Swift Fox Survival, Density, and Home Range Size

ISRN Zoology ◽  
2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Craig M. Thompson ◽  
Eric M. Gese
Keyword(s):  
Home Range ◽  
Landscape Heterogeneity ◽  
Ideal Free Distribution ◽  
Survival Rates ◽  
Home Range Size ◽  
Range Size ◽  
Distribution Model ◽  
Free Distribution ◽  
Swift Fox ◽  
Ideal Free

Swift foxes (Vulpes velox) are an endemic mesocarnivore of North America subject to resource and predation-based pressures. While swift fox demographics have been documented, there is little information on the importance of top-down versus bottom-up pressures or the effect of landscape heterogeneity. Using a consumable resource-based ideal free distribution model as a conceptual framework, we isolated the effects of resource-based habitat selection on fox population ecology. We hypothesized if swift fox ecology is predominantly resource dependant, distribution, survival, and space use would match predictions made under ideal free distribution theory. We monitored survival and home range use of 47 swift foxes in southeastern Colorado from 2001 to 2004. Annual home range size was 15.4 km2, and seasonal home range size was 10.1 km2. At the individual level, annual home range size was unrelated to survival. Estimates of fox density ranged from 0.03 to 0.18 foxes/km2. Seasonal survival rates were 0.73 and 1.0 and did not differ seasonally. Foxes conformed to the predictions of the ideal free distribution model during winter, indicating foxes are food stressed and their behavior governed by resource acquisition. During the rest of the year, behavior was not resource driven and was governed by security from intraguild predation.

Sign in / Sign up

Export Citation Format

Share Document