Post by Infinity Blade on Apr 28, 2022 5:00:41 GMT 5
Saltwater crocodiles have rapidly recovered in population due to a dietary shift from marine to terrestrial sources.
Dietary shifts may underpin the recovery of a large carnivore population
Supporting the recovery of large carnivores is a popular yet challenging endeavour. Estuarine crocodiles in Australia are a large carnivore conservation success story, with the population having extensively recovered from past heavy exploitation. Here, we explored if dietary changes had accompanied this large population recovery by comparing the isotopes δ13C and δ15N in bones of crocodiles sampled 40 to 55 years ago (small population) with bones from contemporary individuals (large population). We found that δ13C and δ15N values were significantly lower in contemporary crocodiles than in the historical cohort, inferring a shift in prey preference away from marine and into terrestrial food webs. We propose that an increase in intraspecific competition within the recovering crocodile population, alongside an increased abundance of feral ungulates occupying the floodplains, may have resulted in the crocodile population shifting to feed predominantly upon terrestrial food sources. The number of feral pigs consumed to sustain and grow crocodile biomass may help suppress pig population growth and increase the flow of terrestrially derived nutrients into aquatic ecosystems. The study highlights the significance of prey availability in contributing to large carnivore population recovery.
Supercommunist: He also claimed that corvids cannot reliably kill anything larger than an insect.
Mar 29, 2024 1:42:13 GMT 5
Supercommunist: Tier zoo repeated the myth that birds have weaker, hollow bones in their most recent video.
Mar 29, 2024 1:39:49 GMT 5
Supercommunist: Anyone know any accounts or rabbits straight up killing stoats/weasels? Also, any accounts of stoats attacking and killing hares?
Feb 7, 2024 3:48:35 GMT 5
dinosauria101: I will never understand the purpose of dishonest streaming services that list full seasons and episodes of shows there's no option to watch.
Feb 6, 2024 4:28:05 GMT 5
Shri devi: It's def a bit slow for me, sometimes doesn't work
Feb 1, 2024 15:40:43 GMT 5
Infinity Blade: I haven't tried an article in a bit.
Feb 1, 2024 7:45:59 GMT 5
Supercommunist: Has sci-hub been slow lately, or is it just me?
Feb 1, 2024 7:44:14 GMT 5
Infinity Blade: Indeed it will be (I remembered that I'll be turning 25 this year), so I think this would be a perfect opportunity.
Jan 30, 2024 7:25:59 GMT 5
Exalt: Seems it aired in October and November, so close.
Jan 30, 2024 6:35:44 GMT 5
Exalt: Wait, isn't this the 25th anniversary of wwd anyway, if it aired in 1999?
Jan 30, 2024 6:35:11 GMT 5
Exalt: I've pondered the idea of doing it myself, there's stuff to comment on, but I've not seen much in the way of reviews for it. Weirdly, WWB seems more popular to do.
Jan 30, 2024 6:30:46 GMT 5
Exalt: I'm not going to push you either way, just an observation that I made.
Jan 30, 2024 6:29:38 GMT 5
Infinity Blade: I first started doing reviews as a means to celebrate an anniversary (like the 20th anniversary). Then I started being less stringent on that, so if I wanted, I could review WWD.
Jan 30, 2024 6:23:11 GMT 5
Exalt: Also, it sure is crazy how despite how limited the fossil record is in the grand scheme of natural history, we're still making discoveries on a relatively frequent basis.
Jan 25, 2024 4:55:00 GMT 5
Exalt: I just looked through the documentaries board and if I've not missed it, nobody has actually done a review for WWD. Huh.
Jan 25, 2024 4:53:47 GMT 5
creature386: @hammerhead Just so that we're clear, it's me who is rejecting your alt-accounts over and over again, not Infinity Blade. IB can't even see your insults unless I show him (which, admittedly, is a fun past-time activity of ours).
Jan 21, 2024 1:52:30 GMT 5
Exalt: Or, debated, rather.
Jan 3, 2024 3:24:21 GMT 5
Exalt: Okay, I asked because I just recently heard of it, and that it was apparently up for debate.
Jan 3, 2024 3:24:10 GMT 5