Results 41 to 50 of about 5,915,013 (307)
Spatial distributions of niche-constructing populations [PDF]
Niche construction theory regards organisms not only as the object of natural selection but also an active subject that can change their own selective pressure through eco-evolutionary feedbacks.
Xiaozhuo Han, Yaling Huang, Cang Hui
doaj
Laboratory observations on rearing experiment of Odonata serve to answer many evolutionary and ecological questions. In order to evidences the role of species parental habitat provenience in the development behaviour of their offspring, we surveyed ...
Imane Halassi +4 more
doaj +1 more source
THE EFFECTS OF ENVIRONMENTAL HETEROGENEITY ON THE GENETICS OF FINITE POPULATIONS [PDF]
ABSTRACT The effects on a panmictic population of a patchy environment and stochastic selection were investigated by computer simulation. The model allowed for different patterns and intensities of selection and various densities of distribution of the offspring. It delineated the effects of these variables on the correlation between the
H, Dickinson, J, Antonovics
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Environmental gradients are important factors that can potentially influence the genetic diversity and differentiation of populations. The present study examines the effect of environmental heterogeneity of the Hyrcanian forests on populations of Circaea
Sedigheh Nikzat +2 more
doaj +1 more source
Optimal Environmental Policy for Heterogeneous Governments in China
The purpose of the article is to study how the shift in the developing philosophy of China’s central leadership has impacted the management style of China’s local governments and, in turn, the country’s economic and environmental equilibrium. We use a real business cycle model with environmental variables and divide governments into those with/without ...
Ren Wang, Yuxiang Bian, Han Gao, Jie Hou
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Central Nervous System Tumors Among Infants in Canada: A Report From CYP‐C
ABSTRACT Background Central nervous system (CNS) tumors in infants are rare, pose unique clinical challenges, and lack large‐scale evidence‐based data to guide management. This study seeks to describe CNS tumors in Canadian infants and to compare their outcomes with those of older children.
Samuel Sassine +17 more
wiley +1 more source
Uncertainty, Learning and Heterogeneity in International Environmental Agreements [PDF]
This paper concerns the formation of International Environmental Agreements under uncertainty about environmental damage with different models of learning (complete learning, partial learning or no learning). The results of the existing literature are generally pessimistic: the possibility of either complete or partial learning generally reduces the ...
Kohlstad, Charles, Ulph, Alistair
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ABSTRACT Background Survivors of pediatric brain tumors (PBTs) can experience long‐term social difficulties, impacting quality of life. Beyond medical and environmental factors, family psychosocial risk may play a role in social outcomes by shaping the caregiving environment and may provide intervention options.
Renske H. Houben +4 more
wiley +1 more source
ABSTRACT Background Adult survivors of childhood acute lymphoblastic leukemia (ALL) are at risk of reduced exercise capacity, decreased physical activity levels, persistent fatigue, and neurocognitive deficits. The aim was to investigate exercise capacity and physical activity levels of adult survivors of childhood ALL and their associations with ...
Laura Jess +5 more
wiley +1 more source
Earthworms Modulate Impacts of Soil Heterogeneity on Plant Growth at Different Spatial Scales
Soil heterogeneity (uneven distribution of soil nutrients and/or other properties) is ubiquitous in nature and can greatly affect plant growth. As earthworm activity can influence nutrient redistribution in the soil, we hypothesize that earthworms may ...
Michael Opoku Adomako +7 more
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