scholarly journals Seasonal Changes in Home-Range Area and Fidelity of Martens

1998 ◽  
Vol 79 (1) ◽  
pp. 180-190 ◽  
Author(s):  
D. M. Phillips ◽  
D. J. Harrison ◽  
D. C. Payer
Keyword(s):  
Home Range ◽  
Seasonal Changes

Seasonal Changes in the Home Range of the Antelope Jackrabbit (Lepus alleni)

Mammal Study ◽  
2019 ◽  
Vol 44 (2) ◽  
pp. 1
Author(s):  
Maria M. Altemus ◽  
John L. Koprowski ◽  
David E. Brown
Keyword(s):  
Home Range ◽  
Seasonal Changes

Seasonal changes in spatial patterns and behavior of yearling male blue grouse on the breeding range

1983 ◽  
Vol 61 (12) ◽  
pp. 2777-2780 ◽  
Author(s):  
Ian G. Jamieson
Keyword(s):  
British Columbia ◽  
Home Range ◽  
Spatial Patterns ◽  
Seasonal Changes ◽  
Late Summer ◽  
Home Ranges ◽  
Breeding Range ◽  
Dendragapus Obscurus ◽  
Radio Transmitters ◽  
And Behavior

Changes in spatial patterns and behavior of yearling male blue grouse (Dendragapus obscurus) equipped with radio transmitters were recorded during spring and summer, 1980 and 1981, on Hardwicke Island, British Columbia. Sizes of home ranges decreased and yearlings appeared to become less dispersed as the season progressed. Most birds moved off their initial home range and onto new areas on the breeding range by late summer although the timing of this movement varied among individuals. Interactions involving yearling males with females and territorial males decreased as the season advanced. Changes in spatial patterns and behavior appear to be related to seasonal changes in levels of hormones in yearling males.

Seasonal changes in home range among tragelaphine antelopes at Musina Nature Reserve, Limpopo Province

2020 ◽  
Vol 58 (4) ◽  
pp. 885-890
Author(s):  
Rudzani A. Makhado ◽  
Basil J. Curlewis ◽  
Wilmien J. Luus‐Powell ◽  
Martin J. Potgieter
Keyword(s):  
Home Range ◽  
Seasonal Changes ◽  
Nature Reserve ◽  
Limpopo Province

scholarly journals Using novel spatial mark–resight techniques to monitor resident Canada geese in a suburban environment

2014 ◽  
Vol 41 (5) ◽  
pp. 447 ◽  
Author(s):  
M. Elizabeth Rutledge ◽  
Rahel Sollmann ◽  
Brian E. Washburn ◽  
Christopher E. Moorman ◽  
Christopher S. DePerno
Keyword(s):  
Home Range ◽  
Seasonal Changes ◽  
The United States ◽  
Careful Consideration ◽  
Home Ranges ◽  
Canada Geese ◽  
Modelling Techniques ◽  
Important Time ◽  
Free Ranging ◽  
Suburban Environment

Context Over the past two decades, an increase in the number of resident (non-migratory) Canada geese (Branta canadensis) in the United States has heightened the awareness of human–goose interactions. Aims Accordingly, baseline demographic estimates for goose populations are needed to help better understand the ecology of Canada geese in suburban areas. Methods As a basis for monitoring efforts, we estimated densities of adult resident Canada geese in a suburban environment by using a novel spatial mark–resight method. We resighted 763 neck- and leg-banded resident Canada geese two to three times per week in and around Greensboro, North Carolina, over an 18-month period (June 2008 – December 2009). We estimated the density, detection probabilities, proportion of male geese in the population, and the movements and home-range radii of the geese by season ((post-molt I 2008 (16 July – 31 October), post-molt II 2008/2009 (1 November – 31 January), breeding and nesting 2009 (1 February – 31 May), and post-molt I 2009). Additionally, we used estimates of the number of marked individuals to quantify apparent monthly survival. Key results Goose densities varied by season, ranging from 11.10 individuals per km2 (s.e. = 0.23) in breeding/nesting to 16.02 individuals per km2 (s.e. = 0.34) in post-molt II. The 95% bivariate normal home-range radii ranged from 2.60 to 3.86 km for males and from 1.90 to 3.15 km for females and female home ranges were smaller than those of male geese during the breeding/nesting and post-molt II seasons. Apparent monthly survival across the study was high, ranging from 0.972 (s.e. = 0.005) to 0.995 (s.e. = 0.002). Conclusions By using spatial mark–resight models, we determined that Canada goose density estimates varied seasonally. Nevertheless, the seasonal changes in density are reflective of the seasonal changes in behaviour and physiological requirements of geese. Implications Although defining the state–space of spatial mark–resight models requires careful consideration, the technique represents a promising new tool to estimate and monitor the density of free-ranging wildlife. Spatial mark–resight methods provide managers with statistically robust population estimates and allow insight into animal space use without the need to employ more costly methods (e.g. telemetry). Also, when repeated across seasons or other biologically important time periods, spatial mark–resight modelling techniques allow for inference about apparent survival.

Seasonal changes in activity and spatial and social relationships of the Iberian rock lizard, Lacerta monticola

2001 ◽  
Vol 79 (11) ◽  
pp. 1965-1971 ◽  
Author(s):  
Pedro Aragón ◽  
Pilar López ◽  
José Martín
Keyword(s):  
Home Range ◽  
Seasonal Changes ◽  
Home Range Size ◽  
Range Size ◽  
Activity Level ◽  
Home Ranges ◽  
Mating Season ◽  
Agonistic Interactions ◽  
Climatic Period ◽  
Rock Lizard

We conducted a field study to examine the significance of the seasonal changes in activity levels, spatial relationships, and social interactions of the Iberian rock lizard, Lacerta monticola, during the same favorable climatic period. Activity level, movement rate, home-range size, number of same-sex neighbors, and number of agonistic interactions decreased as the mating season finished for males but not for females. The number of females' home ranges overlapped by the home range of each male was also higher in the mating season than in the nonmating season. Measurements of available ambient temperatures showed that the thermal environment was suitable for the activity of lizards in both seasons, therefore the seasonal changes cannot be explained by thermal constraints. Males gain access to several females by increasing their home-range size, thus overlapping a larger number of females' home ranges, but as a consequence, also those of a larger number of male competitors. Thus, the cost of incurring agonistic interactions also increases. These results suggest that because activity and aggressiveness in males are related to their mating success, the balance between the costs and benefits of their activity and spatial strategies differs seasonally, and this may be the cause of the observed seasonal changes.

Spreading the Word: Seasonal Changes Mean New Opportunities for Media Coverage

ASHA Leader ◽  
2013 ◽  
Vol 18 (7) ◽  
Keyword(s):  
Media Coverage ◽  
Seasonal Changes ◽  
Swimming Pools

Summer kicking into high gear conjures images of swimming pools and barbeques. But before you book your beach house for the weekend, think about what the changing seasons can mean for you professionally.

Seasonal changes in a ultraviolet structural colour signal in blue tits, Parus caeruleus

2002 ◽  
Vol 76 (2) ◽  
pp. 237-245 ◽  
Author(s):  
JONAS ORNBORG ◽  
STAFFAN ANDERSSON ◽  
SIMON C. GRIFFITH ◽  
BEN C. SHELDON
Keyword(s):  
Seasonal Changes ◽  
Parus Caeruleus ◽  
Structural Colour ◽  
Blue Tits ◽  
Colour Signal
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