Results 41 to 50 of about 26,013 (270)
Larval condition and growth of Sardinella brasiliensis (Steindachner, 1879): preliminary results from laboratory studies [PDF]
, 2003 Brazilian sardine, the most important resource along the southeastern Brazilian coast, presented great variations and declines in its stocks. The main factors contributing to this are: oceanographic structure changes; recruitment failures; excessive ...
Clemmesen, Catriona +3 more
core +2 more sources
Temporal links in daily activity patterns between coral reef predators and their prey. [PDF]
PLoS ONE, 2014 Few studies have documented the activity patterns of both predators and their common prey over 24 h diel cycles. This study documents the temporal periodicity of two common resident predators of juvenile reef fishes, Cephalopholis cyanostigma (rockcod ...
Yoland J Bosiger, Mark I McCormick
doaj +1 more source
Frontiers in Marine Science, 2022 The northern Humboldt Current upwelling system (HCS) belongs to the most productive marine ecosystems, providing five to eight times higher fisheries landings per unit area than other coastal upwelling systems.
Jana C. Massing +9 more
doaj +1 more source
Behavioural tactics across thermal gradients align with partial morphological divergence in brook charr. [PDF]
J Anim EcolOur study reveals that brook charr adopt distinct ‘warm’ and ‘cool’ behavioural tactics to balance foraging and thermal stress in stratified lakes. By linking fine‐scale thermal movements to morphology, we show how temperature‐driven habitat use promotes individual specialization and potential ecotypic divergence under climate change.
Stahl A, Pépino M, Bertolo A, Magnan P.
europepmc +2 more sources
Diel feeding strategy during breeding in male Barn Owls (Tyto alba) [PDF]
Journal of Ornithology, 2013 During reproduction, birds are confronted with two requirements: building up their energetic reserves during the activity period, and provisioning the nest. Storing reserves imposes a higher flight cost and a lower hunting efficiency. This conflict is accentuated in species such as the Barn Owl (Tyto alba), where the nest food supply is entirely taken ...
M. Durant, Joël +2 more
openaire +2 more sources
Ecosphere, 2021 Fishes commonly exhibit diel rhythms in movements with consequences to feeding, reproduction, predator evasion, and resting. Such behaviors are conceived as plastic, persisting for phases (days to weeks), and then becoming disrupted, masked, and altered ...
D. H. Secor +5 more
doaj +1 more source
Movement Ecology, 2020 Background A strong behavioural plasticity is commonly evidenced in the movements of marine megafauna species, and it might be related to an adaptation to local conditions of the habitat. One way to investigate such behavioural plasticity is to satellite
Philippine Chambault +7 more
doaj +1 more source
Diel variation of pumas at kill sites is most affected by life history and human activity
EcosphereThe feeding ecology of apex carnivores is affected by multiple intrinsic (e.g., sex and age) and extrinsic (e.g., prey density, habitat availability, presence of dominant competitors) factors, yet little research has explored how these factors affect the
Maximilian L. Allen +2 more
doaj +1 more source
Chronologically sampled flight feathers permits recognition of individual molt-migrants due to varying protein sources [PDF]
PeerJ, 2015 This is a proof of concept paper based on chronological samples of growing feathers from geese thought to be molt-migrants. When molt-migrant birds initiate molt shortly after migrating to a new isoscape, isotope values measured along the length of their
Sievert Rohwer +3 more
doaj +2 more sources
Diel feeding intensity and daily ration of the sardine Sardina pilchardus [PDF]
Marine Ecology Progress Series, 2011 Peer ...
Nikolioudakis, N. +3 more
openaire +1 more source