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The Guardian claims ocean warming is causing a 'staggering' collapse in marine life, but the study it cites actually shows the opposite. When a year is warmer, fish biomass is found to increase - by as much as 24%. When years turn colder, biomass falls - by around 15%....

13,304 görüntüleme • 4 ay önce •via X (Twitter)

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This video gives a rare glimpse into the "fishy" proclivities of wolves in our area. The video was taken in spring just a short distance from a creek wolves have fished at for many years. This past spring was the 10th year we have documented wolves hunting and catching fish—a behavior that had not been documented in boreal systems such as ours until our work, in part, because it is a tough behavior to observe. What is particularly fascinating is that this wolf was not only carrying a fish but carrying two of them. This is interesting because when we captured this behavior on video for the first time in 2018, we observed a wolf fishing, drop them on the creek bank, and wade back in to continue fishing. I.e., the wolf was not immediately consuming the fish it caught but rather fishing while the fishing was hot, and then once the fishing cooled down, would consume the fish. And this video seems to provide some additional evidence that it might be a widespread strategy wolves use. Two other interesting tidbits from this video: 1.) The wolf that dropped the fish was a yearling wolf. The wolf that grabbed the fish at the end was a different wolf. More specifically, the breeding female of the Half-Moon Pack and the older sister of the yearling wolf. 2.) Surprisingly, the black bear seemed very perplexed at finding this fish, and just left it alone without even taking a little nibble. We would have expected a bear to readily take a free meal like this but apparently not. We have collected of detailed information on how, when, where, and why wolves hunt fish in our area. You can read all about that in our scientific article (which is freely-available at the link below!): Freund et al. 2023. The ethology of wolves foraging on freshwater fish in a boreal ecosystem. Royal Society Open Science.

Voyageurs Wolf Project

36,519 görüntüleme • 4 ay önce

ABC News’ chief meteorologist, Ginger Zee, had an interesting skit last week on adjustments made to U.S. temperature data by government scientists. 💬 “They change and adjust things all the time, but they don’t hide any of that. They do it because that is how you do science.” And, that is somewhat true, although I do take issue with her statement “That is how you do science.” That is very broad and ambiguous, and not always the case. Sometimes, it’s necessary for scientists to make adjustments to data for quality control purposes. For example, you cannot fairly compare the raw number of named tropical storms or hurricanes in the Atlantic basin last year to the total count in 1851 when the HURDAT2 record begins because a lot of storms that either didn’t make landfall or steamroll unfortunate ships that crossed in their path were missed before we had satellite monitoring. So, scientists have to adjust counts in the past upward with a “best guess” so that a fair comparison can be made to recent tallies. And, with the urban heat island effects, the changes in instrumentation with time and station location changes, it is very reasonable to assume that adjustments need to be made to temperature data as they can introduce spurious trends in the time series. Ginger Zee does make it a point to emphasize that later in the ABC News segment. The adjustments to temperature data, however, are what is responsible for almost all of the observed warming since 1895 in the U.S. While I’m not convinced that “fraud” is going on, I’m also not convinced that their “pairwise homogenization” scheme removes the urban heat island effect from the GHCNd data, or even documented warming from increased population density in rural areas, which may explain most of the warming both in the U.S. and globally as opposed to radiative forcing from carbon dioxide (CO₂) emissions. Dr. Roy Spencer makes a good case for this here, and as of last year, was writing a paper on it with colleagues Dr. John Christy and Dr. Danny Braswell. I don’t think it has yet been published, as I can’t find it online. But, here’s a blog article from Spencer’s site detailing their work and preliminary findings. 🔗 I too, plan to look into this soon.

Chris Martz

20,230 görüntüleme • 1 yıl önce