Results 51 to 60 of about 5,558 (259)

Setogenesis and characterization of the new moult substages in the freshwater shrimp Palaemon argentinus (Nobili, 1901) (Caridea: Palaemonidae)

open access: yesNauplius, 2019
The moult cycle of crustaceans is continuous and during different stages of this cycle, physiological, biochemical and morphological changes occur. Therefore, understanding the different stages of the moult cycle in the target species becomes critical ...
Kamila Foguesatto   +2 more
doaj   +1 more source

Host, vector, and parasite dynamics: exploring intrinsic and extrinsic factors shaping tick‐borne filarial nematode transmission

open access: yesBiological Reviews, EarlyView.
ABSTRACT Tick‐borne filarial nematodes are a complex and understudied group of parasites that rely on ticks for transmission in vertebrates. This review examines how intrinsic and extrinsic factors may influence the successful transmission of filarial nematodes in tick vectors, drawing insights from extensively studied haematophagous dipteran vector ...
Oluwaseun D. Ajileye   +4 more
wiley   +1 more source

Progressive ontogenetic niche shift over the prolonged immaturity period of wandering albatrosses [PDF]

open access: yesRoyal Society Open Science, 2017
Very little is known about trophic ontogenetic changes over the prolonged immaturity period of long-lived, wide-ranging seabirds. By using blood and feather trophic tracers (δ13C and δ15N, and mercury, Hg), we studied age-related changes in feeding ...
Alice Carravieri   +3 more
doaj   +1 more source

How wildlife respond to tropical cyclones: short‐term tactics and long‐term impacts

open access: yesBiological Reviews, EarlyView.
ABSTRACT From butterflies to lizards and from sharks to seabirds, wildlife exhibit tactics to survive the impacts of tropical cyclones, also known as hurricanes, cyclones, or typhoons depending on where they occur. Some species seek refuge during the storm by moving, some remain in place and ride it out, and others move longer distances, avoiding the ...
Erin L. Koen   +15 more
wiley   +1 more source

Migration speed, timing, and long‐term shifts in age structure in North American passerines during fall migration

open access: yesEcography, EarlyView.
Migration is challenging for birds, especially juveniles, who experience high mortality rates during migration. The challenge is exacerbated in the Anthropocene, contributing to widespread population declines. Conservation efforts focused on increasing juvenile survival could bolster population recovery.
Dylan M. Osterhaus   +2 more
wiley   +1 more source

Stable immune function during moult regardless of age‐specific moulting strategy in a European passerine

open access: yesJournal of Avian Biology
Moult, the regular replacement of feathers, is a resource‐intense avian annual‐cycle stage. Resource allocation to support feather regrowth may require downregulation of other physiological processes, such as immune function, which is critical for ...
Malin V. Klumpp, Arne Hegemann
doaj   +1 more source

Nutritional, phytochemical, and potential health benefits of Monostroma spp.: A systematic review

open access: yesFood Biomacromolecules, EarlyView.
Abstract Monostroma spp., belonging to the green seaweed, has been known to be health‐promoting food items as prophylactic agents worldwide. It has shown wide arrays of bioactivities for the prevention and treatment of various diseases. A total of 47 articles were selected to review following the Preferred Reporting Items for Systematic reviews and ...
Md Shariful Islam
wiley   +1 more source

Faecal microbiota changes associated with the moult fast in chinstrap and gentoo penguins.

open access: yesPLoS ONE, 2019
In many seabirds, individuals abstain from eating during the moult period. Penguins have an intense moult that lasts for weeks, during which they are confined to land.
Won Young Lee   +6 more
doaj   +1 more source

Chronic Low‐Dose Unsymmetrical Dimethylhydrazine Exposure in Rats: Multiorgan Mechanisms and Biomarker Identification

open access: yesJournal of Applied Toxicology, EarlyView.
ABSTRACT Unsymmetrical dimethylhydrazine (UDMH), a highly toxic rocket propellant with known multiorgan effects, requires urgent characterization of its chronic low‐dose toxicity. Using an integrated approach including exploratory transcriptomics (n = 3/group) and metabolomic (n = 4/group) approaches in male Sprague–Dawley rats exposed to high‐dose ...
Fuzhou Liu   +6 more
wiley   +1 more source

moult : An R Package to Analyze Moult in Birds

open access: yesJournal of Statistical Software, 2013
Moult is the process by which birds replace their feathers. It is a costly process in terms of energy and reduced flight ability but necessary for the maintenance of the plumage and its functions. Because birds generally avoid to moult while engaged with
Birgit Erni   +4 more
doaj  

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