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#predators

1 post1 participant0 posts today
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john rakestraw

#Predators and #prey: size matters. “A chickadee is almost too small to have any [enemies]. That whimsical fellow called #Evolution, having enlarged the dinosaur until he tripped over his own toes, tried shrinking the chickadee until he was just too big to be snapped up by flycatchers as an insect, and just too little to be pursued by hawks and owls as meat. Then he regarded his handiwork and laughed. Everyone laughs at so small a bundle of large enthusiasms."

--Aldo Leopold
@bookstodon

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💧🌏 Greg Cocks

Restoring Predators, Restoring Ecosystems: Yellowstone Wolves And Other Carnivores Drive Strong Trophic Cascade
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phys.org/news/2025-02-predator <-- shared technical article
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doi.org/10.1016/j.gecco.2025.e <-- shared paper
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#GIS #spatial #mapping #YellowstoneNationalPark #Largecarnivores #Willows #Crownvolume #Chronosequencephotographs #Trophiccascade #strength #ecosystem #ecology #biology #biodiversity #vegetation #wolf #elk #willows #riparian #stream #water #hydrology #tree #health #foresthealth #herbivore #carnivore #reintroduction #plants #spatialanalysis #spatiotemporal #biomass #foodweb #predictivemodel #model #modeling #response #predators #yellowstone

photo - wolf crossing a road
schematic - trophic cascade with wolves in Yellowstone National Park
charts - The Yellowstone trophic cascade in context. Wolves were introduced into Yellowstone in 1995 and 1996. Between 2001 and 2020, estimated average willow crown volume in northern Yellowstone rose from approximately 0.30 m3 to 4.80 m3 (A; error bars indicate 95 % confidence intervals). This change corresponds to a log10 response ratio of 1.21 (B), which is substantially greater than the response ratios observed in many other studies (C). Willow crown volume was calculated using height data from Cooper and Hobbs (2023) and the crown volume model from Kauffman and Cummings (2024). Except for Yellowstone willows, average log10 ratios by system type were obtained from a trophic cascade meta-analysis of plant biomass studies (Borer et al., 2005); sample sizes are shown in parentheses; error bars represent one standard error of the mean (C).
photos - (A) Downstream view of the East Fork of Blacktail Deer Creek in August 2004 and September 2021, northern range of Yellowstone National Park, USA. Note the 2.4 m tall fenced ungulate exclosure near the bottom right of the 2004 photo with willows alongside sagebrush, which was part of a Cooper and Hobbs (2023) experimental site. In 2002, willow heights outside the newly constructed fence averaged 68 cm whereas willows inside the fence averaged 85 cm in height (25 % taller). In 2020, willow heights outside the fence averaged 165 cm while willows fully protected from ungulate herbivory inside the fence were 195 cm in height (18 % taller). The fence was constructed in 2001 and removed by the spring of 2021. The similarity, in this example, between inside and outside the exclosure in 2021 is consistent with the strong trophic cascade quantified in the full time-series dataset. (B) Upstream view of Blacktail Deer Creek in 2005 and 2021 and (C) an across channel view in 2005 and 2021 of another reach farther downstream. These chronosequence photographs should be considered examples only, but they do indicate that tall willows, with greatly increased crown volumes, had become relatively common along the valley bottom and floodplains of Blacktail Creek.
Public
Drew Crecente (they/them)

Close CFPB to save money?

▪️$823M budget /yr
▪️$20.7B returned to U.S. consumers since 2011

"The budget slated for 2025 for CFPB was $823 million. Since its creation in 2011, the CFPB has handled millions of consumer complaints and returned $20.7 billion back to consumers."

⭐ THIS is an agency they desperately want to stop. It protects consumers from #predators in the financial services sector.

🌐npr.org/2025/02/08/nx-s1-52909

#CFPB#consumer#protection
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Wen

An analogy for the modern world?

Canada, Denmark and Panama spent most of the past 80 years in the geopolitical equivalent of a petting zoo. In a petting zoo, nobody’s allowed to eat the animals. The zookeeper keeps everybody fed. No longer, the predator has taken his mask off.

Countries that won't hang together will be consumed - get it Starmer?

archive.today/2025.02.06-11464 (archived)

Cartoon. A bevver has its tail stood on by a lion
#Trump#USA#Exceptionalism
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