Publications by authors named "Christian Crosby"
Extreme ecosystem modification by humans has caused drastic reductions in populations and ranges of top mammalian predators, while simultaneously allowing synanthropic mesopredator species to expand. These conditions often result in inflated local densities of highly adaptable mesopredators that disrupt trophic dynamics and place unsustainable predation pressure on native prey populations. Colonization of a dominant predator may lead to top-down control of mesopredators and restore trophic balance.
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- Domestic dogs are common worldwide and can negatively impact wildlife, but their roles in ecosystems are not well understood.
- Adding dogs to food webs could lead to negative, positive, or neutral effects on ecosystem functions, particularly in scavenging dynamics.
- In sandy beach ecosystems, dogs delayed carcass detection and reduced the amount of carrion consumed, particularly affecting nocturnal scavengers, highlighting potential ecological consequences of dog presence.