Results 21 to 30 of about 277,643 (313)

Effects of high-fiber food on gut microbiology and energy metabolism in Eothenomys miletus at different altitudes

open access: yesFrontiers in Microbiology, 2023
Intestinal microorganisms assist the host in digesting complex and difficultly decomposed foods; expand the host’s dietary ecological niche. In order to investigate the effect of high-fiber food on intestinal microorganisms of Eothenomys miletus at ...
Wei Zhang   +5 more
doaj   +1 more source

Roles of leptin on energy balance and thermoregulation in Eothenomys miletus

open access: yesFrontiers in Physiology, 2022
Leptin is a hormone mainly synthesized and secreted by white adipose tissue (WAT), which regulates various physiological processes. To investigate the role of leptin in energy balance and thermoregulation in Eothenomys miletus, voles were randomly ...
Huibao Chen   +6 more
doaj   +1 more source

Roles of Ghrelin and Leptin in Body Mass Regulation under Food Restriction Based on the AMPK Pathway in the Red-Backed Vole, Eothenomys miletus, from Kunming and Dali Regions

open access: yesAnimals, 2022
The phenotype plasticity of animals’ physiological characteristics is an important survival strategy to cope with environmental changes, especially the change in climate factors.
Yuting Liu   +4 more
doaj   +1 more source

The social dynamics of basins of attraction

open access: yesEcology and Society, 2021
In this paper we conceptualize transformations as societal shifts from one basin of attraction to another. Such shifts occur when a society's information processing system is no longer fit to deal with the dynamics with which the society is involved.
Sander van der Leeuw, Carl Folke
doaj   +1 more source

Adaptability and evolution [PDF]

open access: yesInterface Focus, 2017
Abstract The capacity of organisms to respond in their own lifetimes to new challenges in their environments probably appeared early in biological evolution. At present few studies have shown how such adaptability could influence the inherited characteristics of an organism's descendants.
openaire   +2 more sources

The role of calcium and predation on plate morph evolution in the three-spined stickleback (Gasterosteus aculeatus) [PDF]

open access: yes, 2014
While the genetic basis to plate morph evolution of the three-spined stickleback (Gasterosteus aculeatus) is well described, the environmental variables that select for different plate and spine morphs are incompletely understood.
Przybylski, Miroslaw   +19 more
core   +1 more source

Comparative research of intestinal microbiota diversity and body mass regulation in Eothenomys miletus from different areas of Hengduan mountain regions

open access: yesFrontiers in Microbiology, 2022
In order to investigate the effects of different areas on intestinal bacterial diversity and body mass regulation in Eothenomys miletus from Hengduan mountain regions, and to explore the community structure and diversity of intestinal microflora and ...
Bowen Yan   +5 more
doaj   +1 more source

On the Rate of Adaptive Evolution [PDF]

open access: yesEvolution, 1985
Simpson (1953 p. 140) may have been the first to conjecture that the rate of evolution of a population is a monotonic increasing function of its distance from an adaptive optimum. As Stenseth and Maynard Smith (1984) point cut, this conjecture can be construed to be a more general version of Fisher's Fundamental Theorem of Natural Selection.
openaire   +2 more sources

The complete plastid genome of an evergreen tree Litsea elongata (Lauraceae: Laureae)

open access: yesMitochondrial DNA. Part B. Resources, 2020
Litsea elongata (Nees) J. D. Hooker is an economically important timber and medicine tree. In this study, the complete plastid genome of L. elongata was assembled and analyzed.
Chao Liu   +3 more
doaj   +1 more source

Identifying the true number of specimens of the extinct blue antelope (Hippotragus leucophaeus)

open access: yesScientific Reports, 2021
Native to southern Africa, the blue antelope (Hippotragus leucophaeus) is the only large African mammal species known to have become extinct in historical times.
Elisabeth Hempel   +9 more
doaj   +1 more source

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