Seasonal Changes in Reproduction and Social Behavior in the Lizard Anolis aeneus

Copeia ◽  
1976 ◽  
Vol 1976 (3) ◽  
pp. 467 ◽  
Author(s):  
Judy A. Stamps ◽  
David P. Crews
Keyword(s):  
Social Behavior ◽  
Seasonal Changes

scholarly journals 'Bearly' Changing with the Seasons: Bears of Five Species Show Few Behavioral Changes Across Seasons and at Varying Visitor Densities

2021 ◽  
Vol 8 (4) ◽  
pp. 538-557
Author(s):  
Laura M. Bernstein-Kurtycz ◽  
Diana C. Koester ◽  
Rebecca J. Snyder ◽  
Jennifer Vonk ◽  
Mark A. Willis ◽  
...  
Keyword(s):  
Social Behavior ◽  
Natural Environment ◽  
Seasonal Changes ◽  
Behavioral Changes ◽  
Seasonal Patterns ◽  
Natural Environments ◽  
Apparent Effect ◽  
Behavior Monitoring ◽  
Daily Attendance ◽  
And Behavior

In natural environments, bear behavior follows seasonal patterns but the zoo environment differs from the natural environment in several ways, including the presence of zoo visitors. Although typically difficult to disentangle, we were able to tease apart the effects of seasonal changes and visitor density on the visibility and behavior of 10 bears representing five species housed at Cleveland Metroparks Zoo due to the disruption caused by COVID-19. We conducted a longitudinal bear behavior monitoring project from June, 2017-November, 2020. Bears were more visible in the spring and in the presence of visitors, locomoted more and were less inactive when large crowds were present, foraged and locomoted more when it was earlier in the day, and locomoted more at higher temperatures. There were limited differences in bear visibility to observers between 2020 (when the zoo was temporarily closed to visitors) and the previous three years. There were no differences in rates of stereotypy or social behavior across seasons, crowds, or daily attendance categories. Based on these limited differences, neither season nor visitor density seemed to have an apparent effect on bear behavior or welfare.

Odor preference and social behavior in meadow voles, Microtus pennsylvanicus: seasonal differences

1987 ◽  
Vol 65 (12) ◽  
pp. 2931-2937 ◽  
Author(s):  
Michael H. Ferkin ◽  
Joshua O. Seamon
Keyword(s):  
Social Behavior ◽  
Social Organization ◽  
Breeding Season ◽  
Seasonal Changes ◽  
Microtus Pennsylvanicus ◽  
Odor Preference ◽  
Nonbreeding Season ◽  
Y Maze ◽  
Female Territoriality ◽  
Males And Females

Olfactory cues play a major role in inter- and intra-sexual agonistic behavior for Microtus pennsylvanicus. We show that seasonal changes in odor preference and behavioral interactions coincide with varying patterns of social organization. Odor preference trials were conducted in a Y maze and social behavior was measured in dyadic encounters in a neutral arena. During the breeding season, paired encounters between females contained more agonistic acts than did encounters between males, or those between males and females. Breeding males preferred the odor of females to the odor of conspecific males. In contrast, breeding females preferred their own odor and the odor of males to the odor of other females. The data support female exclusiveness during the breeding season. During the nonbreeding season, paired encounters between females contained fewer agonistic acts than did encounters between males or those between males and females. Nonbreeding females preferred the odor of female conspecifics to their own odor or the odor of male conspecifics. These results are consistent with group nesting and a relaxation of female territoriality during the nonbreeding season. Nonbreeding males did not exhibit a preference for their own odor, the odor of other males, or the odor of female conspecifics. Our results indicate that nonbreeding males are solitary, and overwintering groups are female-biased. Odor preferences may underlie seasonal changes in social organization.

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

Seasonal changes in nitrogen fractions of Pachysandra terminalis, a forest evergreen chamaephyte

1990 ◽  
Vol 79 (1) ◽  
pp. 7-14 ◽  
Author(s):  
Fumio Yoshie ◽  
Hirohito Arai ◽  
Hideaki Nakashima ◽  
Shoichi Kawano
Keyword(s):  
Seasonal Changes ◽  
Nitrogen Fractions
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