Cheap gulp foraging of a giga-predator enables efficient ... - AAAS
2023年6月23日 · Rather than lunge feeding representing an evolutionary cul de sac restricting rorqual baleen whales to target only the densest prey patches, cheap lunge feeding is a very efficient harvesting strategy that allow these giga-predators to exploit a wide density range of tiny prey species on their high-latitude feeding grounds during short foraging ...
Foraging behaviour of a continental shelf marine predator, the …
2020年10月20日 · Our results demonstrate the value of using high resolution oceanographic data collected from instrumented animals at scales relevant to foraging decisions made by large marine predators.
Flexible foraging behaviour increases predator vulnerability to …
2024年2月27日 · Higher temperatures are expected to reduce species coexistence by increasing energetic demands. However, flexible foraging behaviour could balance this effect by allowing predators to target...
Marked differences in foraging area use and susceptibility to …
2023年10月10日 · For example, top predators, such as seabirds and marine mammals, often feed on small fish and regroup in large multi-species colonies to breed, potentially leading to intense competition (Lewis et al. 2001). Mechanisms that reduce interspecific competition are therefore likely to be important.
Marked differences in foraging area use and susceptibility
However, the two species are targeted by different predators, with native avian predators mainly targeting red-tailed tropicbird nests, and invasive rats raiding white-tailed tropicbird nests when they leave their eggs unattended.
Modelled prey fields predict marine predator foraging success
2023年3月1日 · Modelling marine predator foraging habitats is a widespread research approach for projecting species responses to a rapidly changing Southern Ocean. Yet a key remaining challenge is to understand how changing prey biomass within foraging habitats could affect predator foraging success.
Surface and subsurface oceanographic features drive forage fish ...
Forage fishes are a critical food web link in marine ecosystems, aggregating in a hierarchical patch structure over multiple spatial and temporal scales. Surface‐level forage fish aggregations (FFAs) represent a concentrated source of prey available …
Higher temperatures are expected to reduce species coexistence by increasing energetic demands. However, flexible foraging behaviour could balance this efect by allowing predators to target...
Marine predators aggregate in anticyclonic ocean eddies - Nature
2022年9月7日 · Predators that can forage in deep waters, as well as those that are mostly limited to foraging in shallow waters 4, can access the potentially increased amount of prey in anticyclones. Thus...
The energetics of foraging in large mammals: a ... - Semantic …
2004年12月1日 · It is shown that grazing foraging on small prey is viable for marine mammal predators despite their high FMR because they can hunt near continuously at low marginal expense, and cessation of foraging due to human disturbance comes at a high cost.