Evidence map›Paper›PMID 29133415›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2017

Phenological shifts conserve thermal niches in North American birds and reshape expectations for climate-driven range shifts.

Jacob B Socolar, Peter N Epanchin, Steven R Beissinger, Morgan W Tingley

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

43 citing papers in PubMed, 1 synthesis or guideline pooled it.

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  19. Demographic consequences of phenological asynchrony for North American songbirds.Proceedings of the National Academy of Sciences of the United States of America · 2023
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors.

Jacob B SocolarDepartment of Ecology and Evolutionary Biology, University of Connecticut, Storrs, CT 06269; jacob.socolar@gmail.com.ORCID 0000-0002-9126-9093
Peter N EpanchinOffice of Global Climate Change, US Agency for International Development, Washington, DC 20523.
Steven R BeissingerDepartment of Environmental Science, Policy & Management, University of California, Berkeley, CA 94720.
Morgan W TingleyDepartment of Ecology and Evolutionary Biology, University of Connecticut, Storrs, CT 06269.ORCID 0000-0002-1477-2218

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Species respond to climate change in two dominant ways: range shifts in latitude or elevation and phenological shifts of life-history events. Range shifts are widely viewed as the principal mechanism for thermal niche tracking, and phenological shifts in birds and other consumers are widely understood as the principal mechanism for tracking temporal peaks in biotic resources. However, phenological and range shifts each present simultaneous opportunities for temperature and resource tracking, although the possible role for phenological shifts in thermal niche tracking has been widely overlooked. Using a canonical dataset of Californian bird surveys and a detectability-based approach for quantifying phenological signal, we show that Californian bird communities advanced their breeding phenology by 5-12 d over the last century. This phenological shift might track shifting resource peaks, but it also reduces average temperatures during nesting by over 1 °C, approximately the same magnitude that average temperatures have warmed over the same period. We further show that early-summer temperature anomalies are correlated with nest success in a continental-scale database of bird nests, suggesting avian thermal niches might be broadly limited by temperatures during nesting. These findings outline an adaptation surface where geographic range and breeding phenology respond jointly to constraints imposed by temperature and resource phenology. By stabilizing temperatures during nesting, phenological shifts might mitigate the need for range shifts. Global change ecology will benefit from further exploring phenological adjustment as a potential mechanism for thermal niche tracking and vice versa.

Indexed as

AcclimatizationAnimal MigrationAnimalsBirdsCaliforniaClimate ChangeNesting BehaviorSeasonsTemperatureUnited Statesbirdsclimate changenestingSierra Nevadathermal niche

Identifiers

PMID29133415
PMCPMC5724251

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.