Seasonal modulation of sex-related differences in hippocampus size and spatial behavior in bank voles, Clethrionomys glareolus (Rodentia, Cricetidae)

Yaskin, V. A.

doi:10.1134/s1067413613030156

Cited by 21 publications

(21 citation statements)

References 36 publications

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“…The summer increase in size of the hippocampus is correlated with an increase in spatial range, especially in males (e.g. Yaskin, 2013). Rates of neurogenesis also vary seasonally in wild populations of voles, with females showing higher levels of cell proliferation than males and higher levels during non-breeding than during breeding (Galea and McEwen, 1999;Omerod and Galea, 2003).…”

Section: Seasonal Change In the Mammalian Hippocampusmentioning

confidence: 99%

Seasonal change in the avian hippocampus

Sherry¹,

MacDougall‐Shackleton²

2015

Frontiers in Neuroendocrinology

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The hippocampus plays an important role in cognitive processes, including memory and spatial orientation, in birds. The hippocampus undergoes seasonal change in food-storing birds and brood parasites, there are changes in the hippocampus during breeding, and further changes occur in some species in association with migration. In food-storing birds, seasonal change in the hippocampus occurs in fall and winter when the cognitively demanding behaviour of caching and retrieving food occurs. The timing of annual change in the hippocampus of food-storing birds is quite variable, however, and appears not to be under photoperiod control. A variety of factors, including cognitive performance, exercise, and stress may all influence seasonal change in the avian hippocampus. The causal processes underlying seasonal change in the avian hippocampus have not been extensively examined and the more fully described hormonal influences on the mammalian hippocampus may provide hypotheses for investigating the control of hippocampal seasonality in birds.

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Section: Seasonal Change In the Mammalian Hippocampusmentioning

confidence: 99%

Seasonal change in the avian hippocampus

Sherry¹,

MacDougall‐Shackleton²

2015

Frontiers in Neuroendocrinology

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“…In white-footed mice ( Peromyscus leucopus ), exposure to short days decreases hippocampal volume, with concurrent impairment in hippocampal function (see learning and memory below, [259, 337]). Short day reductions in brain mass have also been reported in meadow voles ( Microtus pennsylvanicus ) [67, 111], bank voles ( Myodes glareolus ) [342], and shrews ( Sorex araneus L. ) [72, 341]. However, short day increases in hippocampal volume occur in several species of wild food-caching birds [280].…”

Section: Photoperiod and Energy Balancementioning

confidence: 99%

“…In rodents, seasonal variation in spatial learning and memory has been reported in fox squirrels ( Sciurus niger ) [320], deer mice ( P. maniculatus ) [109-110], and white-footed mice [257, 259, 337]. In a naturalistic setting, seasonal variation in hippocampal and brain volume is positively correlated with seasonal spatial navigation and spatial memory requirements [173, 342]. Indeed, in deer mice, seasonal territory maintenance life history positively correlates with photoperiodic variation in spatial learning and memory, leading to sex and population based differences in spatial learning and memory performance across seasons [109-110].…”

Section: Photoperiod Affect and Non-reproductive Behaviorsmentioning

confidence: 99%

Influence of photoperiod on hormones, behavior, and immune function

Walton

Weil

Nelson

2011

Frontiers in Neuroendocrinology

173

129

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Photoperiodism is the ability of plants and animals to measure environmental day length to ascertain time of year. Central to the evolution of photoperiodism in animals is the adaptive distribution of energetically challenging activities across the year to optimize reproductive fitness while balancing the energetic tradeoffs necessary for seasonally- appropriate survival strategies. The ability to accurately predict future events requires endogenous mechanisms to permit physiological anticipation of annual conditions. Day length provides a virtually noise free environmental signal to monitor and accurately predict time of the year. In mammals, melatonin provides the hormonal signal transducing day length. Duration of pineal melatonin is inversely related to day length and its secretion drives enduring changes in many physiological systems, including the HPA, HPG, and brain-gut axes, the autonomic nervous system, and the immune system. Thus, melatonin is the fulcrum mediating redistribution of energetic investment among physiological processes to maximize fitness and survival.

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“…Yaskin (2009) provided convincing evidence that the decrease in the locomotor and exploratory activities of Cl. glar eolus voles under laboratory conditions and reduction of their home ranges in natural habitats in autumn and winter occur in parallel with decrease in the weight of the hippocampus, one of the key structures of the lim bic system responsible for spatial memory.…”

Section: Discussionmentioning

confidence: 90%

Seasonal dynamics of heart rate variability in three murine rodent species

et al. 2014

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Seasonal dynamics of heart rate variability in individuals of late summer and autumn generations have been studied in three rodent species kept in a vivarium: the striped field mouse (Apodemus agrarius), bank vole (Clethrionomys glareolus), and northern red backed vole (Cl. rutilus). It has been shown that the cardiac function of the rodents in autumn and winter is mainly controlled by autonomic mechanisms: the heart rate is slow, cardiovascular control systems are relaxed. During the winter-spring transition, the role of central cardiovascular circuits increases because of the necessity to activate all body systems by spring.

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Seasonal modulation of sex-related differences in hippocampus size and spatial behavior in bank voles, Clethrionomys glareolus (Rodentia, Cricetidae)

Cited by 21 publications

References 36 publications

Seasonal change in the avian hippocampus

Seasonal change in the avian hippocampus

Influence of photoperiod on hormones, behavior, and immune function

Seasonal dynamics of heart rate variability in three murine rodent species

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