Time Budgets and Activity Patterns in California Sea Otters

1990 ◽  
Vol 54 (2) ◽  
pp. 251 ◽  
Author(s):  
Katherine Ralls ◽  
Donald B. Siniff
2012 ◽  
Vol 58 (4) ◽  
pp. 536-540 ◽  
Author(s):  
Jianhua Ding ◽  
Zhitao Liu ◽  
Yanling Song ◽  
Zhigao Zeng ◽  
Qiong Zhang ◽  
...  

Abstract Aspects of time budgets, activity patterns and rut-related changes in behavior are well documented in temperate ungulates; however, the application of this understanding to tropical and sub-tropical ungulate species has attracted less attention and remains an area that may re-shape our knowledge of ungulate behavior. Eld’s deer Cervus eldi hainanus has a tropical and sub-tropical distribution on Hainan Island, China, and males have an extended rut exceeding five months during which they do not maintain harems or defend resources. We studied males from the only remaining population on Hainan Island, and describe rut-related changes in behavior by collecting data on time budgets and activity patterns. We show that male Eld’s deer do not follow a strict crepuscular activity pattern, do not spend the majority of their time foraging and do not increase foraging nor display rut-induced hypophagia during rut, in obvious contrast to temperate ungulates. These results are discussed in light of current hypotheses explaining the proximate mechanisms governing feeding time in ungulates, while appreciating the need for further research.


2007 ◽  
Vol 28 (3) ◽  
pp. 657-671 ◽  
Author(s):  
Qihai Zhou ◽  
Fuwen Wei ◽  
Chengming Huang ◽  
Ming Li ◽  
Baoping Ren ◽  
...  

1986 ◽  
Vol 50 (4) ◽  
pp. 626 ◽  
Author(s):  
James A. Estes ◽  
Karen E. Underwood ◽  
Margit J. Karmann

Zoo Biology ◽  
2011 ◽  
Vol 31 (2) ◽  
pp. 206-218 ◽  
Author(s):  
Daniel W. S. Challender ◽  
Nguyen Van Thai ◽  
Martin Jones ◽  
Les May

1971 ◽  
Vol 3 (4) ◽  
pp. 353-368 ◽  
Author(s):  
J Anderson

This paper attempts to provide a general perspective on the potentialities and limitations of research into individual activity patterns. The most common types of activity study and data-collecting device are briefly described, and problems of data collection and analysis are outlined. The main focus is on the value of ‘space-time budgets’ in household surveys, assessed with respect to two contrasting aims: (1) deriving ‘behavioural’ postulates on which geographic theories of spatial structure might be based, and (2) planning spatial structures to suit the behaviour patterns and aspirations of different types of individuals and households. Activities occur in a ‘space-time’ continuum’, and there are temporal regularities inherent in spatial patterns. It is argued that studying activity patterns in terms of ‘space-time locations’ can throw light on pressing socio-spatial problems.


The Auk ◽  
1985 ◽  
Vol 102 (3) ◽  
pp. 580-586 ◽  
Author(s):  
J. L. Maron ◽  
J. P. Myers

Abstract Seasonal changes in Sanderling (Calidris alba) feeding success, time budgets, and weights were followed throughout the nonbreeding season at Bodega Bay, California. Sanderlings spent more time roosting in fall than in winter, and in fall adults spent more time roosting than juveniles. Sanderling prey capture rates were high in fall and spring and declined through winter. Sanderling weights paralleled seasonal changes in feeding success and activity patterns: birds were heaviest in fall and spring and lightest in winter. These results reflect lowered food availability in winter and imply that birds may have difficulty balancing their energy budgets during part of the nonbreeding season.


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