ScienceDaily: Earth & Climate News


Enhanced statistical models will aid conservation of killer whales and other species

Posted: 17 Jan 2022 06:30 AM PST

Retrieving an accurate picture of what a tagged animal does as it journeys through its environment requires statistical analysis, especially when it comes to animal movement, and the methods statisticians use are always evolving to make full use of the large and complex data sets that are available. A recent study by researchers at the Institute for the Oceans and Fisheries (IOF) and the UBC department of statistics has taken us a step closer to understanding the behaviours of northern resident killer whales by improving statistical tools useful for identifying animal behaviours that can't be observed directly.

Repeated exposure to major disasters has long-term mental health impacts

Posted: 16 Jan 2022 05:19 AM PST

Repeated exposure to major disasters does not make people mentally stronger, a recent study found: individuals who have been repeatedly exposed to major disasters show a reduction in mental health scores.

Powerful volcanic blast not the cause for 2018 Indonesian island collapse

Posted: 14 Jan 2022 04:26 PM PST

The dramatic collapse of Indonesia's Anak Krakatau volcano in December 2018 resulted from long-term destabilising processes, and was not triggered by any distinct changes in the magmatic system that could have been detected by current monitoring techniques, new research has found.

A catalyst for more efficient green hydrogen production

Posted: 14 Jan 2022 12:34 PM PST

Researchers have developed a new water-splitting process and material that maximize the efficiency of producing green hydrogen, making it an affordable and accessible option for industrial partners that want to convert to green hydrogen for renewable energy storage instead of conventional, carbon-emitting hydrogen production from natural gas.

Strong evidence shows Sixth Mass Extinction of global biodiversity in progress

Posted: 13 Jan 2022 04:49 PM PST

The history of life on Earth has been marked five times by events of mass biodiversity extinction caused by extreme natural phenomena. Today, many experts warn that a Sixth Mass Extinction crisis is underway, this time entirely caused by human activities. A comprehensive assessment of evidence of this ongoing extinction event was recently published.

Compost is a major source of pathogenic aspergillus spores, study suggests

Posted: 13 Jan 2022 04:49 PM PST

Compost and compost-enriched soils may contain high concentrations of A. fumigatus spores, a new study has found.

New research advocates a basic strategy for native fish recovery: Access to water

Posted: 13 Jan 2022 12:14 PM PST

Rivers need water -- a fact that may seem ridiculously obvious, but in times of increasing water development, drought, and climate change, the quantity of natural streamflow that remains in river channels is coming into question, especially in the Colorado River basin. Newly published research poses a tough question in these days of falling reservoir levels and high-stakes urban development: whether the continued development of rivers for water supply can be balanced with fish conservation.

The 'gold' of the Midas cichlids

Posted: 13 Jan 2022 08:15 AM PST

Evolutionary biologists describe a new gene in the Central American Midas cichlid fish and identify a variant caused by a 'jumping gene' (transposon). This variant of the 'goldentouch gene' is most likely the reason for the golden coloration that can be found in a small percentage of animals of this species complex.

Rising atmospheric CO2 concentrations globally affect photosynthesis of peat-forming mosses

Posted: 13 Jan 2022 08:14 AM PST

Scientists have developed ways to decipher effects of the CO2 rise during the past 100 years on metabolic fluxes of the key plant species in peatlands, mosses. Analyses of cellulose in peat cores collected by collaborating scientists working in five continents indicate that a CO2-driven increase in photosynthesis of mosses is strongly dependent on the water table, which may change the species composition of peat moss communities.