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Trending Papers in ecology

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53
Dissolving the Fermi Paradox
The Fermi paradox is the conflict between an expectation of a high {\em ex ante} probability of intelligent life elsewhere in the universe and the apparently lifeless universe we in fact observe. The expectation that the universe should be teeming with intelligent life is linked to models like the Drake equation, which suggest that even if the probability of intelligent life developing at a given site is small, the sheer multitude of possible sites should nonetheless yield a large number of potentially observable civilizations. We show that this conflict arises from the use of Drake-like equations, which implicitly assume certainty regarding highly uncertain parameters. We examine these parameters, incorporating models of chemical and genetic transitions on paths to the origin of life, and show that extant scientific knowledge corresponds to uncertainties that span multiple orders of magnitude. This makes a stark difference. When the model is recast to represent realistic distributions of uncertainty, we find a substantial {\em ex ante} probability of there being no other intelligent life in our observable universe, and thus that there should be little surprise when we fail to detect any signs of it. This result dissolves the Fermi paradox, and in doing so removes any need to invoke speculative mechanisms by which civilizations would inevitably fail to have observable effects upon the universe.
Submitted by Brian Armstrong
7
Chemical compounds secreted by Queen honey bees are able to modulate gene expression in the brains of worker honey bees
From Paper: Queen pheromone modulates the expression of epigenetic modifier genes in the brain of worker honey bees
Pheromones are used by many insects to mediate social interactions. In the honey bee (Apis mellifera), queen mandibular pheromone is involved in the regulation of reproduction and the rate of aging of worker bees
Submitted by Patrick Joyce
3
Contaminants in drinking water
This paper discusses the issue of water quality related to waterborne illnesses.
Submitted by Teresa Russell
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A review of allelopathy on microalgae
This paper describes the allelopathy as a way to combat harmful algal blooms
Submitted by Anna Culinscaia
2
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Untangling the Environmentalist’s Paradox: Why Is Human Well-being Increasing as Ecosystem Services Degrade?
This paper explores the correlation between the overall increase in human well-being as global ecosystem services have declined.
Submitted by Teresa Russell
2
Planetary Boundaries: Exploring the Safe Operating Space for Humanity
Nine planetary boundaries are identified for global sustainability.
Submitted by Teresa Russell
0
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Measuring Endorsement of the New Ecological Paradigm: A Revised NEP Scale
This study develops and tests an updated version of the New Environmental Paradigm (NEP) scale.
Submitted by Teresa Russell
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