The influence of distance to refuge on flight initiation distance in the gray squirrel (Sciurus carolinensis)

The effect of predator positioning and related angles on the flight-initiation distance and refuge choice of the eastern gray squirrel

Melanocortin 1 receptor (MC1R) gene sequence variation and melanism in the gray (Sciurus carolinensis), fox (Sciurus niger), and red (Sciurus vulgaris) squirrel.

Sequence variations in the melanocortin 1 receptor (MC1R) gene are associated with melanism in many different species of mammals, birds, and reptiles. The gray squirrel (Sciurus carolinensis), found in the British Isles, was introduced from North America in the late 19th century. Melanism in the British gray squirrel is associated with a 24-bp deletion in the MC1R. To investigate the origin of ...

Investigating eastern gray squirrel (Sciurus carolinensis) feeding behaviors in open and shaded habitats in the presence of a red fox (Vulpes vulpes)

Eastern gray squirrel (Sciurus carolinensis) feeding behavior often varies in different surroundings. Moreover, predation decreases gray squirrel foraging activity and influences the types of areas in which they choose to forage. We examined whether shaded areas help gray squirrels hide from predators, allowing them to eat more food as opposed to being in open areas. Our hypothesis stated that ...

Using GPS telemetry to validate least-cost modeling of gray squirrel (Sciurus carolinensis) movement within a fragmented landscape

In Britain, the population of native red squirrels Sciurus vulgaris has suffered population declines and local extinctions. Interspecific resource competition and disease spread by the invasive gray squirrel Sciurus carolinensis are the main factors behind the decline. Gray squirrels have adapted to the British landscape so efficiently that they are widely distributed. Knowledge on how gray squ...

ارزیابی زیستگاه سنجاب ایرانی(Sciurus anumalus) در منطقه جنگلی سروک در استان کهگیلویه و بویراحمد

The current study used habitat suitability index to evaluate habitat suitability of Servak forested area located near Yasouj for the Persian squirrel. Habitat variables including elevation, slope, aspect, density of vegetation cover, height of tree, tree diameter, canopy area of tree, distance to roads, distance to villages, and distance to rivers were used in this evaluation. Results showed th...