Decline of Indian vultures
India’s near-collapse of vulture populations—driven largely by the veterinary drug diclofenac—has had cascading effects on public health and sanitation, with carcasses now more often consumed by feral dogs that spread rabies and other diseases. Commenters explore how vultures exemplify “ecosystem services,” debate the evidence linking their loss to excess human deaths, and use the case to argue for the practical importance of biodiversity and ecological resilience. A parallel thread examines the growing presence of AI-generated comments and botnets on platforms like Hacker News and Reddit, raising concerns about manipulation, authenticity, and how close current language models are to being indistinguishable from humans.
Ecological role of vultures
- Some commenters ask what species fill vultures’ niche. Answers mention wild dogs and possibly striped hyenas.
- Wild dogs are described as a problematic replacement: they spread rabies and other diseases, can attack people, and their waste is said to be plant‑toxic, unlike vultures’ guano.
- Others note that evolution to create a new, diclofenac‑resistant scavenger would be slow and unlikely to keep pace with rapid human‑driven change.
- There is debate over “nature is very efficient”: several argue nature is only “good enough” for survival, not optimized for human goals.
Sanitation, carcass disposal, and human health
- Commenters highlight that modern sanitation should not depend on vultures; carcass dumps near people are seen as the deeper problem.
- Even away from streets, carcasses in landfills or open countryside still benefit from scavengers.
- Some are surprised that landfilling large animal carcasses (including in the US) is a standard option; others note common ranch practice of dragging carcasses away for coyotes to clean up.
Biodiversity and ecosystem services
- One thread tackles “why care about biodiversity?”:
- Arguments: interdependence of species, resilience to disease and climate shocks, avoidance of famines, and future medicines from plants/animals.
- Examples used: crop diseases (bananas, potatoes, vines, olives), soil degradation, coastal erosion, mangroves, and Amazon deforestation.
- Counterpoints emphasize that monocultures currently give very high yields; some consumers see little direct impact when one region fails because imports substitute.
- Others stress long‑term risk: monocultures feed more people now but are fragile; failures can cause mass starvation, especially where welfare and safety nets are weak.
Study methodology and causation
- Several participants question how confidently the paper attributes ~100k extra deaths per year to vulture loss, pointing to correlation vs causation and possible confounders.
- Others note the full working paper (95 pages) details methods and that the authors themselves use cautious language (“results suggest”).
- Some see the headline numbers as potentially overstated by media, despite likely real social costs.
Diclofenac and policy response
- Timeline recap: vulture declines noticed in the 1990s; diclofenac identified as the key cause only around 2004–2005.
- India banned veterinary diclofenac in 2005–2006 after confirming vulture‑safe alternatives; commenters see the lag as scary but partly explained by scientific uncertainty and regulatory pushback.
AI‑generated comments and bots
- A large sub‑thread discusses obvious AI‑like comments on HN:
- Patterns: new accounts, generic “interesting + summary” posts, highly similar phrasing.
- Motives speculated: karma farming to later manipulate votes, paid boosting of stories, propaganda by state or commercial actors, or hobbyist experimentation.
- Some note that only the clumsiest bots are visible; more sophisticated ones may already blend in.
- Broader concerns: erosion of trust, difficulty forming real human connections, astroturfed “authentic” opinions and product feedback, and the “firehose of misinformation.”
- There is debate over how good bots already are, whether they’ll become indistinguishable from average humans without AGI, and how much that matters to users seeking real human, timely reactions.