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Contents | Science 379, 6628
“Storylistening” in the science policy ecosystem Expert analysis of narrative can complement and strengthen scientific evidence

Human consumption of insects Farming edible insects can help improve food security and boost developing economies

Assessing ExxonMobil’s global warming projections ExxonMobil’s own climate models showed that fossil fuel use would cause climate warming.
For decades, some members of the fossil fuel industry tried to convince the public that a causative link between fossil fuel use and climate warming could not be made because the models used to project warming were too uncertain. Supran et al. show that one of those fossil fuel companies, ExxonMobil, had their own internal models that projected warming trajectories consistent with those forecast by the independent academic and government models. What they understood about climate models thus contradicted what they led the public to believe.

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Protected areas protection

Caroline Ash

A concern in conservation is whether areas designated as protected really do protect species. Bird watching is a popular activity because species are relatively easy to observe and consistent, accurate data are straightforward to collect. The Breeding Bird Survey in the UK was started in 1994, and Sanderson et al. used these data to compare the effectiveness of protection to birds by two levels of designated conservation: the UK’s Sites of Special Scientific Interest (SSSI) and the UK components of the European Natura 2000 network. In a related survey, Barnes et al. used data from large-scale citizen science projects to address the same question. Both studies showed that the larger Natura 2000 areas deliver the greatest positive benefits for rare and vulnerable species with specialized habitat needs. However, many of these areas have not been well managed, so they have the potential to offer even greater benefits to vulnerable species.

Animal Conserv. 10.1111/acv.12832 (2022); Nat. Ecol. Evol. 10.1038/s41559-022-01927-4 (2022).

Living Bird Magazine, 42(1), Winter 2023
A decade of research has revealed how the cognitive abilities of chickadees are shaped by their surroundings. Now scientists have begun to peer inside the black box of genetics, uncovering the variations in the birds’ DNA that made these adaptations possible.

Three Years After 3 Billion Birds Lost, America’s Birds Are Still in Decline

The latest State of the Birds Report uncovers continuing declines but also shows opportunities for bringing birds back—while aligning bird conservation with biodiversity protection, environmental justice, and climate resilience.


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Science 378 (6626), 23 décembre 2022
Glassfrogs conceal blood in their liver to maintain transparency
Transparency provides a form of camouflage that is particularly useful for increasing crypsis in motionless animals. Many taxa have evolved transparency, but it is particularly challenging for vertebrates because red blood cells attenuate light. Taboada et al. found that glass frogs are able to maintain a high level of transparency because a large proportion of their red blood cells are “hidden” in the liver (see the Perspective by Cruz and White). This strategy allows the frogs to attain transparency when they are the most vulnerable. Understanding this liver-packing process may inform our understanding of hemodynamics more broadly.

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Ardea, 110(2), 2022
Climate effects on breeding phenology of Peregrine and Lanner Falcons in the Mediterranean.
Seed dispersal by an invasive exotic bird in Europe.
Brood sex ratio in European Honey Buzzards Pernis apivorus is related to spring phenology.