Results 111 to 120 of about 67,186 (282)

Under the cover of darkness: Foraging behaviour increases on cloudy, new moon nights in a pelagic seabird

open access: yesIbis, EarlyView.
While many visual predators feed exclusively during the day, others exploit foraging opportunities at night, although the efficiency with which they do so is strongly influenced by ambient light levels. We investigated the influence of variation in nocturnal light on the foraging behaviour of a small pelagic seabird, the European Storm‐petrel ...
Darren Wilkinson   +3 more
wiley   +1 more source

The role of lipids in winter survival of Antarctic zooplankton

open access: yes, 2007
Two species of adult Antarctic krill, Euphausia superba and E. crystallorophias, and two species of adult Antarctic copepods, Pareuchaeta antarctica and Calanoides acutus, were collected and analyzed for total lipid and lipid classes to understand the ...
김웅서, 주세종, H. R. Harvey
core  

Seasonal variation in preen gland secretions of Tristram's Storm Petrel (Hydrobates tristrami)

open access: yesIbis, EarlyView.
Preen gland secretions are known to vary depending on sex, season and species and are thought to play essential roles in avian life history. However, their chemical composition and functions remain largely unclear in Procellariiform seabirds with well‐developed olfactory senses. Storm petrels, known for their distinctive body odour, may use preen gland
Taiki Terajima   +2 more
wiley   +1 more source

Laboratory studies on the feeding behaviour of juvenile Cape horse mackerel, Trachurus trachurus capensis [PDF]

open access: yes, 2002
Bibliography: leaves 78-90.Laboratory studies were conducted on juvenile horse mackerel to examine feeding selectivity and rates of zooplankton consumption of two size classes of fish.
Mapukata, Tembela
core   +1 more source

Microcosm experimental evidence that habitat orientation affects phytoplankton-zooplankton dynamics

open access: yes, 2017
Although spatial ecology has achieved a great success in the passing decades, the importance of habitat orientation has not been well studied, especially for its effects on prey-predator dynamics.
Zhang, YS   +7 more
core   +1 more source

When Protecting Wetlands Is Not Enough: Active Conservation for Threatened Annual Killifish

open access: yes
Animal Conservation, EarlyView.
Leonardo Maltchik   +4 more
wiley   +1 more source

Giants in the cold: Morphological evidence for vascular heat retention in the viscera but not the skeletal muscle of the basking shark (Cetorhinus maximus)

open access: yesJournal of Fish Biology, EarlyView.
Abstract Fewer than 50 of the over 30,000 extant species of fishes have developed anatomical specializations facilitating endothermy in specific body regions. The plankton‐feeding basking shark (Cetorhinus maximus), traditionally classified as an ectotherm, was recently shown to have regionally endothermic traits such as centralized red muscle (RM ...
C. Antonia Klöcker   +9 more
wiley   +1 more source

Zooplankton of lakes Borodaevskoe and Ferapontovskoe (Russky Sever (Russian North) National Park)

open access: yesТрансформация экосистем
The zooplankton of the lakes Borodaevskoe and Ferapontovskoe (Russky Sever (Russian North) National Park) has been studied in 1975, 2008, and 2021. The zooplankton composition is similar in the lakes.
E. V. Lobunicheva   +2 more
doaj   +1 more source

Zooplankton of Moreton Bay

open access: yes, 2019
Moreton Bay is a subtropical bay in south east Queensland that supports important populations of seabirds, marine mammals, reptiles and fish. Zooplankton, being small, are often overlooked, but are important nutrient cyclers and a critical link between ...
Rissik, David   +7 more
core  

‘It's not much, but it's honest work’: The status of environmental DNA analyses of fish biodiversity in southern Africa

open access: yesJournal of Fish Biology, EarlyView.
Abstract Environmental DNA (eDNA) biodiversity surveys have the power to transform the detection of species in natural environments, which is crucial for the conservation and management of freshwater, estuarine and marine environments. Globally, eDNA‐based analyses have increased significantly, with fishes being the most widely studied aquatic ...
Sophie von der Heyden
wiley   +1 more source

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