Visitors   Views   Downloads

Testing the hypothesis that routine sea ice coverage of 3-5 mkm2 results in a greater than 30% decline in population size of polar bears (Ursus maritimus)

View preprint
17 hours ago
Crockford (2017): https://t.co/pdyDUi4QTO https://t.co/DxzB0oeyyf
2 days ago
@tomasgalego @GalaRomani ¿Por qué no miras los números? El hielo ha bajado, tendría que haber un 30% - 50% menos de osos, según lo que decían ¡Pero resulta que hay más! https://t.co/4qQm4NXAbv
5 days ago
RT @KareemHarper: @CatRiv8083 @Overloard44 @MyCrazyPh0t0s @B17Fortres @Critterpap @SamSanderson123 @barelycopping @NatGeo Bud Fox can't. Re…
@CatRiv8083 @Overloard44 @MyCrazyPh0t0s @B17Fortres @Critterpap @SamSanderson123 @barelycopping @NatGeo Bud Fox can't. Recent study finds that population decline is accelerating significantly due to climate change. https://t.co/EdLgVZwRCy
6 days ago
@tlitb @shubclimate @clim8resistance Hmmm, tbh I suspect that this (as yet not peer-reviewed) paper is far more relevant to the topic than the peer-reviewed papers that tangentially mention polar bears. Crux is, Crockford is a professional zoologist with Phd, she's right to challenge. https://t.co/7talD0t8b9
@KanStaandPijpen I like the term 'tragedy porn', and understand that hype can be damaging. That article link you gave rises suspicions in me. Yes, one piece of data is not a trend, but their language is skewed to the 'it's not happening' margin. References lack peer review https://t.co/BIbvoUGNcb
@T7Ricky @38boog Most recent data don’t support your thesis: https://t.co/gaLupNmP2i Indeed, the best thing to do for polar bears, if deemed necessary, would be to outlaw hunting: https://t.co/uMxNOCqMM3
RT @plazaeme: @juanmanuelycia Lo tuyo es fuerte. No niego el cambio climático. Las especies no disminuyen más que antes del cambio climátic…
RT @plazaeme: @juanmanuelycia Lo tuyo es fuerte. No niego el cambio climático. Las especies no disminuyen más que antes del cambio climátic…
8 days ago
@juanmanuelycia Lo tuyo es fuerte. No niego el cambio climático. Las especies no disminuyen más que antes del cambio climático (¿números, plis?). Causa real ... futura tien un nombre: especulación. Y el hielo ya ha dsimunido ... ¡con aumento de osos! https://t.co/4qQm4NXAbv
8 days ago
@ryanjespersen Jesus Ryan, you will believe anything. It is a fake story. https://t.co/IWCvoSHBXX https://t.co/hZ3bTD2UXT Please read these before replying. Polar Bear populations have been increasing, and in fact, the greatest danger to them is hunting.
11 days ago
RT @plazaeme: @AraTornem @velardedaoiz Testing the hypothesis that routine sea ice coverage of 3-5 mkm2 results in a greater than 30% decli…
11 days ago
@AraTornem @velardedaoiz Testing the hypothesis that routine sea ice coverage of 3-5 mkm2 results in a greater than 30% decline in population size of polar bears (Ursus maritimus) https://t.co/4qQm4NXAbv
@BradyHighway @AEDerocher @uvic Hey Brady, suggest you read the science and decide for yourself https://t.co/FfcXpt0cZq
104 days ago
Polar bear numbers have increased in number to such a degree now that climate alarmist are ditching using them in... https://t.co/dF5U4Mc0qQ
109 days ago
RT @sjc_pbs: #polarbears have lived with predicted 2050 sea ice since 2007 yet no numbers declined as predicted: details here https://t.co/…
RT @sjc_pbs: #polarbears have lived with predicted 2050 sea ice since 2007 yet no numbers declined as predicted: details here https://t.co/…
110 days ago
RT @sjc_pbs: #polarbears have lived with predicted 2050 sea ice since 2007 yet no numbers declined as predicted: details here https://t.co/…
RT @sjc_pbs: #polarbears have lived with predicted 2050 sea ice since 2007 yet no numbers declined as predicted: details here https://t.co/…
RT @sjc_pbs: #polarbears have lived with predicted 2050 sea ice since 2007 yet no numbers declined as predicted: details here https://t.co/…
110 days ago
RT @sjc_pbs: #polarbears have lived with predicted 2050 sea ice since 2007 yet no numbers declined as predicted: details here https://t.co/…
#polarbears have lived with predicted 2050 sea ice since 2007 yet no numbers declined as predicted: details here https://t.co/gBveassiX1 https://t.co/rjZ4MHiRnh
@NatGeoChannel https://t.co/v2KbOSOVid
RT @sjc_pbs: USGS experts predicted for ESA 2/3 of #polarbears would die when Sept #seaice fell to levels actually seen 2007-2015 https://t…
USGS experts predicted for ESA 2/3 of #polarbears would die when Sept #seaice fell to levels actually seen 2007-2015 https://t.co/gBveassiX1 https://t.co/hkeFHcX8s1
NOT PEER-REVIEWED
"PeerJ Preprints" is a venue for early communication or feedback before peer review. Data may be preliminary.

Additional Information

Competing Interests

The author has no competing interests to declare.

Author Contributions

Susan J Crockford conceived and designed the experiments, performed the experiments, analyzed the data, contributed reagents/materials/analysis tools, wrote the paper, prepared figures and/or tables, reviewed drafts of the paper.

Data Deposition

The following information was supplied regarding data availability:

The research in this article did not generate, collect, or analyse any raw data or code.

Funding

The author received no funding for this work.


Add your feedback

Before adding feedback, consider if it can be asked as a question instead, and if so then use the Question tab. Pointing out typos is fine, but authors are encouraged to accept only substantially helpful feedback.

Some Markdown syntax is allowed: _italic_ **bold** ^superscript^ ~subscript~ %%blockquote%% [link text](link URL)
 
By posting this you agree to PeerJ's commenting policies