Results 41 to 50 of about 8,953 (216)

Osteohistology of two phorusrhacids reveals uninterrupted growth strategy

open access: yesThe Anatomical Record, EarlyView.
Abstract Phorusrhacidae were apex predators that primarily dominated South America ecosystems for at least 40 million years with their imposing size and predatory lifestyle—yet some aspects of their biology remain poorly understood. Osteohistology is a tool for understanding growth dynamics and biomechanical adaptations.
Lotta Dreyer   +2 more
wiley   +1 more source

FIRST RECORD OF MELANITTA FUSCA IN THE REPUBLIC OF KOREA AND UPDATE ON NORTHEAST ASIAN RECORDS

open access: yesNature Conservation Research: Заповедная наука, 2022
We report the first confirmed sighting of the globally Vulnerable Melanitta fusca (Anatidae, Anseriformes) from Yeongil Bay in Pohang in the Republic of Korea.
Amaël Borzée, Nial Moores
doaj   +1 more source

Efficient Masked Autoencoder for Birdsong Representation with Applications on Wild Bird Species Classification

open access: yesIntegrative Zoology, EarlyView.
Research on mosquito feeding preferences and the malaria parasites they transmit is essential for understanding the interactions between hosts, vectors, and parasites. In this study, vertebrate hosts were identified in 72 mosquitoes. Most blood meals (58.7%) came from birds, representing 25 species, while 40.0% came from mammals (13 species), and 1.3 ...
Qin Zhang   +8 more
wiley   +1 more source

Genetic diversity and host specificity varies across three genera of blood parasites in ducks of the Pacific Americas Flyway.

open access: yesPLoS ONE, 2015
Birds of the order Anseriformes, commonly referred to as waterfowl, are frequently infected by Haemosporidia of the genera Haemoproteus, Plasmodium, and Leucocytozoon via dipteran vectors.
Andrew B Reeves   +4 more
doaj   +1 more source

Courtship display behavior influences tail myology in Centrocercus minimus (Gunnison sage‐grouse)

open access: yesJournal of Anatomy, EarlyView.
Courtship displays among birds are widespread, particularly those which incorporate raised tail feathers for extended periods of time. The Gunnison sage‐grouse (Centrocercus minimus) is such a species. When we compared the tail muscles of the sage‐grouse to birds which do not engage in erected tail fan postures, both morphology proportional mass ...
Alexander D. Clark   +3 more
wiley   +1 more source

Sexually dichromatic hybrids between two monochromatic duck species, the Chiloé wigeon and the Philippine duck

open access: yesEcology and Evolution, 2021
Captive bird hybrids can provide important data on certain traits, such as hybrid viability and fertility. In this paper, we describe four hybrids between the Chiloé wigeon (Anas sibilatrix) and the Philippine duck (Anas luzonica).
Jente Ottenburghs, Jan Harteman
doaj   +1 more source

Citizen science reveals host‐switching in louse flies and keds (Diptera: Hippoboscidae) during a period of anthropogenic change

open access: yesMedical and Veterinary Entomology, Volume 40, Issue 2, Page 305-322, June 2026.
A study of louse flies in the United Kingdom, Isle of Man, and Ireland found 212 different interactions between Hippoboscidae and their hosts, of which 70 were previously unrecorded. No louse flies were found on aquatic species of birds. Host‐switching to gulls (Laridae) has occurred during a period in which these species have started relying on ...
Denise C. Wawman   +2 more
wiley   +1 more source

Integumentary fibrosarcoma in a free‐living swan (Cygnus olor): Medical and welfare considerations

open access: yesVeterinary Record Case Reports, Volume 14, Issue 2, May 2026.
Abstract A 10‐kg adult male mute swan (Cygnus olor) of unknown age was admitted for investigations of two large ventral masses overlying the keel bone, which were discharging purulent material. The masses measured 8.9 × 2.1 cm and 4.2 × 3.2 cm. Empirical treatment with non‐steroidal anti‐inflammatory drugs and antimicrobials was instigated.
Rachael Amy McKinney, Katherine Hughes
wiley   +1 more source

The evolution of pattern camouflage strategies in waterfowl and game birds. [PDF]

open access: yes, 2015
This is the final version of the article. It first appeared from Wiley via http://dx.doi.org/10.1002/ece3.1482Visual patterns are common in animals. A broad survey of the literature has revealed that different patterns have distinct functions.
Allen   +71 more
core   +2 more sources

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