Results 21 to 30 of about 101,096 (303)

Kinematics and energetics of foraging behavior in Rice’s whales of the Gulf of Mexico

open access: yesScientific Reports, 2023
Rorqual foraging behavior varies with species, prey type and foraging conditions, and can be a determining factor for their fitness. Little is known about the foraging ecology of Rice’s whales (Balaenoptera ricei), an endangered species with a population
Annebelle C. M. Kok   +6 more
doaj   +1 more source

Feeding of biofilm-dwelling nematodes examined using HPLC-analysis of gut pigment content [PDF]

open access: yes, 2011
The natural feeding behaviour of the nematodes Chromadorina bioculata (Schultze in Carus 1857) and Chromadorina viridis (Linstow 1876) was studied in situ, within epilithic biofilms of the Garonne River (France).
Evelyne Buffan-Dubau   +7 more
core   +1 more source

Herbivory by a phloem-feeding insect inhibits floral volatile production [PDF]

open access: yes, 2012
There is extensive knowledge on the effects of insect herbivory on volatile emission from vegetative tissue, but little is known about its impact on floral volatiles.
Webster Ben   +29 more
core   +1 more source

Observations on the Feeding Ecology of Impala [PDF]

open access: yesSouth African Journal of Zoology, 1980
The distribution, habitat preference, and diet of impala in mixed wooded savanna were studied. In the wet season impala were evenly distributed through the different vegetation types and their diet was predominantly grass, but in the dry season they concentrated in areas of Acacia savanna and changed to a mainly browsing diet.
openaire   +2 more sources

A fixed energetic ceiling to parental effort in the great tit? [PDF]

open access: yes, 2000
1. To elucidate the links between avian brood size, parental effort and parental investment, we measured daily energy expenditure (DEEfem), condition (residuals of mass on tarsus) and feeding rate in female great tits Parus major L.
Verhulst, S.; id_orcid   +6 more
core   +1 more source

Stable isotope and signature fatty acid analyses suggest reef manta rays feed on demersal zooplankton. [PDF]

open access: yesPLoS ONE, 2013
Assessing the trophic role and interaction of an animal is key to understanding its general ecology and dynamics. Conventional techniques used to elucidate diet, such as stomach content analysis, are not suitable for large threatened marine species.
Lydie I E Couturier   +8 more
doaj   +1 more source

Toothed whales independently evolve specialized suction feeding without converging on skull shape [PDF]

open access: yesPeerJ
Specialized suction feeders independently evolved in several odontocete (toothed whale) lineages, with paradigmatic examples in sperm whales and beaked whales.
Rebecca J. Strauch   +3 more
doaj   +2 more sources

Hypotheses and lessons from a native moth outbreak in a low‐diversity, tropical rainforest

open access: yesEcosphere, 2022
Outbreaks of defoliating insects in low‐diversity tropical forests occur infrequently but provide valuable insights about outbreak ecology in temperate environments and in general.
Paul C. Banko   +7 more
doaj   +1 more source

The feeding ecology and microbiome of the pteropod Limacina helicina antarctica

open access: yes, 2022
The pteropod (pelagic snail) Limacina helicina antarctica is a dominant grazer along the Western Antarctic Peninsula (WAP) and plays an important role in regional food web dynamics and biogeochemical cycling.
Song, Bongkeun   +3 more
core   +1 more source

Feeding mechanisms and ecology of pycnodont fishes (Neopterygii, Pycnodontiformes) [PDF]

open access: yesFossil Record, 2001
The functional morphology of the jaw apparatus and the skull and the feeding habits of the extinct pycnodont fishes are reconstructed in comparison with some extant halecostomes.
J. Kriwet
doaj   +5 more sources

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