Seasonal Activity Patterns and Breeding of the Western Jumping Mouse (Zapus princeps) in Wyoming

Brown, Larry N.

doi:10.2307/2485243

Cited by 16 publications

(27 citation statements)

References 10 publications

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“…princeps emerges from hibernation 4-8 weeks later than Z. hudsonius in the eastern U.S. At the lowest elevations (2,591) Z. princeps emerges from hibernation in mid May (16 May), nearly identical to the population of Z. h. luteus at BANWR (Brown 1967). However, populations of Z.…”

Section: Discussionmentioning

confidence: 92%

“…princeps at 2,896 m emerge on 1 June, and those at 3,200 m on 13 June (Brown 1967). Thus, montane populations of Z. h. luteus emerge from hibernation as late as very high elevation populations of Z. princeps.…”

Section: Discussionmentioning

confidence: 95%

“…In Wyoming, emergence of Z. princeps occurred approximately 2 weeks later for each 305 m increase in elevation (Brown 1967), but Cranford (1983 also observed considerable variation due to habitat quality and other local features such as aspect and shade. Female Z. princeps in Wyoming emerged 9 to 12 days later than males (Brown 1967), but Cranford (1983) found that timing of emergence in Utah was uniform except at the highest elevations.…”

Section: Introductionmentioning

confidence: 99%

“…Timing of emergence in Z. hudsonius is known to vary annually and geographically due to variation in soil temperature (Quimby 1951;Muchlinski 1988). Similarly, timing of emergence from hibernation in the western jumping mouse (Z. princeps), which occurs in the Rocky Mountain region, also is cued by soil temperature (Cranford 1978) and hence it varies with elevation (Brown 1967, Cranford 1983. In Wyoming, emergence of Z. princeps occurred approximately 2 weeks later for each 305 m increase in elevation (Brown 1967), but Cranford (1983 also observed considerable variation due to habitat quality and other local features such as aspect and shade.…”

Section: Introductionmentioning

confidence: 99%

“…Similarly, timing of emergence from hibernation in the western jumping mouse (Z. princeps), which occurs in the Rocky Mountain region, also is cued by soil temperature (Cranford 1978) and hence it varies with elevation (Brown 1967, Cranford 1983. In Wyoming, emergence of Z. princeps occurred approximately 2 weeks later for each 305 m increase in elevation (Brown 1967), but Cranford (1983 also observed considerable variation due to habitat quality and other local features such as aspect and shade. Female Z. princeps in Wyoming emerged 9 to 12 days later than males (Brown 1967), but Cranford (1983) found that timing of emergence in Utah was uniform except at the highest elevations.…”

Section: Introductionmentioning

confidence: 99%

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Timing of hibernation and reproduction in the endangered New Mexico meadow jumping mouse (Zapus hudsonius luteus)

Frey

2015

Preprint

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Hibernation is a key life history feature that can impact many other crucial aspects of a species’ biology, such as its survival and reproduction. I examined the timing of hibernation and reproduction in the federally endangered New Mexico meadow jumping mouse (Zapus hudsonius luteus), which occurs across a broad range of latitudes and elevations in the American Southwest. Data from museum specimens and field studies supported predictions for later emergence and shorter active intervals in montane populations relative to low-elevation populations. A low-elevation population located at Bosque del Apache National Wildlife Refuge (BANWR) in the Rio Grande valley was most similar to other populations of Z. hudsonius: the first emergence date was in mid-May and there was an active interval of 162 days. In montane populations of Z. h. luteus, the date of first emergence was delayed until mid-June and the active interval was reduced to ca 130 days, similar to some populations of the western jumping mouse (Z. princeps). Last date of immergence into hibernation occurred at about the same time in all populations (mid to late October). Evidence suggests that females may have a single litter per year in montane populations. At BANWR two peaks in reproduction were expected based on similarity of active season to Z. h. preblei, but the population exhibited little detectable above-ground activity in August, which could stem from a failure of the population to produce early litters. Recommendations are made with respect to appropriate timing of surveys for Z. h. luteus.

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Section: Discussionmentioning

confidence: 92%

Section: Discussionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Timing of hibernation and reproduction in the endangered New Mexico meadow jumping mouse (Zapus hudsonius luteus)

Frey

2015

Preprint

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Overwinter body temperature patterns in captive jerboas (Jaculus orientalis): influence of sex and group

Ouezzani¹,

Janati²,

Magoul³

et al. 2010

J Comp Physiol B

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The jerboa (Jaculus orientalis) has been described in the past as a hibernator, but no reliable data exist on the daily and seasonal rhythmicity of body temperature (T (b)). In this study, T (b) patterns were determined in different groups of jerboas (isolated males and females, castrated males and grouped animals) maintained in captivity during autumn and winter, and submitted to natural variations of light and ambient temperature (T (a)). T (b) and T (a) variations were recorded with surgically implanted iButton temperature loggers at 30-min intervals for two consecutive years. About half (6/13) of isolated female jerboas hibernated with a T (b) < 33°C, with hibernation bouts interspersed with short periods of normothermy from November to February. Hibernation bout durations were longer (4-5 days) than those of normothermia phases (1-4 days). During hibernation, the minimum T (b) was low (T (b)min ~10.7°C). In contrast, one of the 12 isolated males showed short hibernation bouts of ca. 2 days late in the hibernation season, February-March. The males had T (b)min values of 15.1°C. In contrast to predictions, no castrated males hibernated. When jerboas were grouped, females and males exhibited concomitant torpor bouts. In males, the longest bouts were observed during the late hibernation season. These data suggest complex regulation of hibernation in jerboas.

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Evolutionary trade-offs in dormancy phenology

Constant,

Dobson,

Habold

et al. 2023

Preprint

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Seasonal animal dormancy, hibernation or diapause, is widely interpreted as a physiological response for surviving energetic challenges during the harshest times of the year. However, there are other mutually non-exclusive hypotheses to explain the timing of animal dormancy over time, that is, entry into and emergence from hibernation (i.e. dormancy phenology). Other survival advantages of dormancy that have been proposed are reduced risks of predation and competition (the "life-history" hypothesis), but comparative tests across animal species are not yet available. Under this hypothesis, dormancy phenology is influenced by a trade-off between the reproductive advantages of being active and the survival benefits of being in dormancy. Thus, species may emerge from dormancy when reproductive benefits occur, regardless of the environmental conditions for obtaining energy. Species may go into dormancy when these environmental conditions would allow continued activity, if there were benefits from reduced predation or competition. Within a species, males and females differ in the amount of time and energy they invest in reproduction. Thus, the trade-off between reproduction and survival may be reflected in sex differences in phenology of dormancy. Using a phylogenetic comparative method applied to more than 20 hibernating mammalian species, we predicted that differences between the sexes in hibernation phenology should be associated with differences in reproductive investment, regardless of energetic status. Consistent with the life-history hypothesis, the sex that spent the less time in activities directly associated with reproduction (e.g. testicular maturation, gestation) or indirectly (e.g. recovery from reproductive stress) spent more time in hibernation. This was not expected if hibernation phenology were solely influenced by energetic constraints. Moreover, hibernation sometimes took place at times when the environment would allow the maintenance of a positive energy balance. We also compiled, initial evidence consistent with the life history hypothesis to explain the dormancy phenology of ectotherms (invertebrates and reptiles). Thus, dormancy during non-life-threatening periods that are unfavorable for reproduction may be more widespread than previously appreciated.

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Seasonal Activity Patterns and Breeding of the Western Jumping Mouse (Zapus princeps) in Wyoming

Cited by 16 publications

References 10 publications

Timing of hibernation and reproduction in the endangered New Mexico meadow jumping mouse (Zapus hudsonius luteus)

Timing of hibernation and reproduction in the endangered New Mexico meadow jumping mouse (Zapus hudsonius luteus)

Overwinter body temperature patterns in captive jerboas (Jaculus orientalis): influence of sex and group

Evolutionary trade-offs in dormancy phenology

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