Activity of free-living subterranean blind mole rats Spalax galili (Rodentia: Spalacidae) in an area of supposed sympatric speciation

@article{klba2016ActivityOF,
  title={Activity of free-living subterranean blind mole rats Spalax galili (Rodentia: Spalacidae) in an area of supposed sympatric speciation},
  author={Jan {\vS}kl{\'i}ba and Matěj L{\"o}vy and Stephan C. W. Koeppen and Lucie Ple{\vs}tilov{\'a} and Milo{\vs} Vit{\'a}mv{\'a}s and Eviatar Nevo and Radim {\vS}umbera},
  journal={Biological Journal of The Linnean Society},
  year={2016},
  volume={118},
  pages={280-291}
}
Subterranean rodents forage underground, which is energetically costly. Therefore, they can be expected to economize burrowing activity in response to food supply and soil characteristics. We analyzed the activity of radio-tracked blind mole rats, Spalax galili, on a locality sharply subdivided into harder but relatively food-rich, basaltic soil and softer, relatively food-poor rendzina. It was recently proposed that the mole rats in this locality are undergoing sympatric ecological speciation… Expand
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References

SHOWING 1-10 OF 51 REFERENCES
Habitat and Burrow System Characteristics of the Blind Mole Rat Spalax galili in an Area of Supposed Sympatric Speciation
TLDR
A combination of food supply and soil parameters probably influences burrowing patterns resulting in shorter and more complex burrow systems in basaltic soil. Expand
Possible incipient sympatric ecological speciation in blind mole rats (Spalax)
TLDR
This identification of a possible incipient sympatric adaptive ecological speciation caused by natural selection indirectly refutes the allopatric alternative. Expand
Home-Range Dynamics in a Solitary Subterranean Rodent
TLDR
This work chose the silvery mole-rat from mesic Afrotropics as a representative of solitary subterranean rodents to investigate how, and how fast these rodents process their established burrow systems, and developed a new method for assessing the rate of burrowing. Expand
Determinants of Daily Activity Patterns in a Free-living Afrotropical Solitary Subterranean Rodent
TLDR
It is proposed that burrow temperature can work as zeitgeber of circadian activity in this species, because mole-rats in the field apparently respond to even slight temperature fluctuations and adjusted their activity accordingly. Expand
Mammalian microevolution in action: adaptive edaphic genomic divergence in blind subterranean mole–rats
TLDR
Genetic polymorphism was significantly higher on the ecologically more xeric and stressful chalky rendzina soil than on the neighbouring mesic basalt soil, suggesting natural selection is the only evolutionary adaptive force that can cause genetic divergence across the genome matching the sharp microscale ecological contrast. Expand
Population Dynamics and Bioenergetics of a Fossorial Herbivore, Thomomys talpoides (Rodentia: Geomyidae), in a Spruce-Fir Sere
TLDR
It is concluded that stochastic events associated with weather affect energy acquisition (burrowing) rates, and thus survivorship, in montane environments and may prevent populations from attaining sizes at which territorial behavior would hypothetically limit further increases. Expand
Colony size and structure, activity patterns and foraging behaviour of a colony of the social mole-rat Cryptomys damarensis (Bathyergidae)
TLDR
A complete colony of 20 Cryptomys damarensis was trapped in the Kalahari Gemsbok National Park, South Africa and it was suggested that the chance of hyperthemia influenced activity, such that in order to maximize the daily distance burrowed, the mole-rats had to engage in frequent foraging bouts. Expand
Social and Environmental Influences on Daily Activity Pattern in Free-Living Subterranean Rodents
TLDR
Monitoring of outside-nest activity in eusocial mole-rat species concluded that social cues in communally nesting mole-rats may disrupt (mask) temperature-related daily activity rhythms but probably only if the additional cost of thermoregulation is not too high, as it likely is in the Ansell’s mole- rat. Expand
Oxygen and carbon dioxide fluctuations in burrows of subterranean blind mole rats indicate tolerance to hypoxic-hypercapnic stresses.
  • I. Shams, A. Avivi, E. Nevo
  • Biology, Medicine
  • Comparative biochemistry and physiology. Part A, Molecular & integrative physiology
  • 2005
TLDR
The gas composition and soil water content in neighboring sites with different soil types indicated large differences in the levels of hypoxic-hypercapnic stress in different populations of the same species. Expand
Locomotor patterns, territory, and tunnel utilization in the mole‐rat Spalax ehrenbergi
TLDR
It was shown that mole-rat territories undergo constant change in use and location throughout the year, with tunnel lengths averaging 18.7 ± 4.0 m in the dry season and 39.1 ± 7.1m in the rainy season. Expand
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