Results 31 to 40 of about 927,461 (351)

Innovation and New Path Creation: The Role of Niche Environments in the Development of the Wind Power Industry in Germany and the UK [PDF]

open access: yes, 2012
This paper seeks to explore the issues of innovation and new path creation in the UK and Germany, illustrated through the case of the modern wind power industry. Taking an evolutionary perspective drawing on path dependence theory, the paper examines the
Carpenter, Juliet   +4 more
core   +3 more sources

Reductions in the dietary niche of southern sea otters (Enhydra lutris nereis) from the Holocene to the Anthropocene. [PDF]

open access: yes, 2020
The sea otter (Enhydra lutris) is a marine mammal hunted to near extinction during the 1800s. Despite their well-known modern importance as a keystone species, we know little about historical sea otter ecology.
Elliott Smith, Emma A   +7 more
core   +1 more source

Presentación

open access: yesAlteridades
Desde el punto de vista de las ciencias sociales, las catástrofes y los acontecimientos traumáticos pueden analizarse como situaciones que alteran el acontecer cotidiano de los miembros de una sociedad y obligan al ser humano a reorganizar su existencia,
Jorgelina Reinoso Niche   +1 more
doaj   +1 more source

Ecology and co-existence of two endemic day gecko (Phelsuma) species in Seychelles native palm forest [PDF]

open access: yes, 2011
In island ecosystems, reptiles play diverse ecological roles as a result of niche broadening, which increases potential niche overlap between species. Ecological niche partitioning is a means of reducing direct competition between coexisting species and ...
Bassett   +30 more
core   +1 more source

Maternal Serum Cytokine Concentrations in Healthy Pregnancy and Preeclampsia

open access: yesJournal of Pregnancy, 2021
The maternal immune response is essential for successful pregnancy, promoting immune tolerance to the fetus while maintaining innate and adaptive immunity. Uncontrolled, increased proinflammatory responses are a contributing factor to the pathogenesis of
Toni Spence   +5 more
doaj   +1 more source

A spatially explicit model for competition among specialists and generalists in a heterogeneous environment [PDF]

open access: yes, 2006
Competition is a major force in structuring ecological communities. The strength of competition can be measured using the concept of a niche. A niche comprises the set of requirements of an organism in terms of habitat, environment and functional role ...
Lanchier, N., Neuhauser, C.
core   +1 more source

The Clumping Transition in Niche Competition: a Robust Critical Phenomenon [PDF]

open access: yes, 2010
We show analytically and numerically that the appearance of lumps and gaps in the distribution of n competing species along a niche axis is a robust phenomenon whenever the finiteness of the niche space is taken into account.
Bak P   +13 more
core   +2 more sources

To what degree are philosophy and the ecological niche concept necessary in the ecological theory and conservation? [PDF]

open access: yes, 2017
Ecology as a field produces philosophical anxiety, largely because it differs in scientific structure from classical  physics. The hypothetical deductive models of classical physics are simple and predictive; general ecological models are ...
Martins, Rogério P
core   +3 more sources

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

Languages adapt to their contextual niche [PDF]

open access: yes, 2014
It is well established that context plays a fundamental role in how we learn and use language. Here we explore how context links short-term language use with the long-term emergence of different types of language system.
Kirby, Simon   +2 more
core   +1 more source

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