Results 41 to 50 of about 7,508 (202)

The disruption of seed dispersal networks: disentangling the effects of habitat loss and fragmentation

open access: yesOikos, EarlyView.
Seed dispersal by frugivores is a central process linking plant reproduction, animal foraging, population persistence, and ecosystem resilience. Currently, the spatial template sustaining these interactions is rapidly reconfigured by habitat loss and fragmentation promoted by human activity.
Eliana Cazetta, Paulo R. Guimarães Jr
wiley   +1 more source

Hypodectes propus (Nitzsch, 1861) (Acarina: Hypoderatidae) in common wood pigeons (Columba palumbus Linnaeus, 1758) (Aves: Columbidae): the first record in Türkiye

open access: yesThe European Zoological Journal
Hypoderatid mites of the species Hypodectes propus have a complex interaction with their hosts and much remains to be elucidated about these mites. This study was planned based on the observation of small worm-like structures in the subcutaneous adipose ...
C. Ceylan, M. A. Selcuk, O. Ceylan
semanticscholar   +1 more source

Form, function and fibres: a preliminary study of the Swartkrans fossil birds

open access: yesKoedoe: African Protected Area Conservation and Science, 1991
Fossil bird bones from the Swartkrans cave estimated at about one million years old have been identified to family level. Differences in humerus and sternum structure were noted.
V. Watson
doaj   +1 more source

A forensic approach to understanding habitat use from stable isotope analysis of (avian) claw material [PDF]

open access: yes, 2003
1. The potential of using stable isotope signatures of avian claws in order to infer diet and habitat use was investigated. 2. Highly significant relationships observed between stable carbon and nitrogen isotope ratios (13C, 15N) in the claws and ...
Bearhop, S   +4 more
core   +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, EarlyView.
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

Territorial expansion of Zenaida auriculata (Aves: Columbidae) in the Brazilian Amazon

open access: yesActa Amazonica, 2022
Birds are considered bioindicators of environmental quality because they are sensitive to environmental changes. The eared dove (Zenaida auriculata) is associated with open areas, has low sensitivity to environmental changes and is widely distributed in ...
C. N. Ortúzar-Ferreira   +2 more
semanticscholar   +1 more source

Discriminating between nesting and non-nesting habitat in a vulnerable bird species: Implications for behavioural ecology [PDF]

open access: yes, 2019
Nowadays, partitioning amongst nesting and non-nesting habitats is not much studied. Here, I investigate whether or not the turtle dove (Streptopelia turtur) nesting habitats overlap with those used for other purposes in a North African agroforestry ...
Hanane, Saad
core   +2 more sources

Chlamydia avium‐associated hepatitis in a fancy pigeon (Columba livia f. domestica)

open access: yesVeterinary Record Case Reports, Volume 14, Issue 2, May 2026.
Abstract A 5‐year‐old, male, fancy pigeon (Columba livia f. domestica, 380 g), found dead without prior clinical signs, was submitted for diagnostic postmortem examination. Histologically, the animal exhibited heterophilic to mononuclear hepatitis consistent with avian chlamydiosis; however, Chlamydia psittaci‐specific real‐time polymerase chain ...
Eva Dervas   +4 more
wiley   +1 more source

Registro da pomba-do-orvalho Patagioenas maculosa (Aves: Columbidae) no estado de Santa Catarina, sul do Brasil

open access: yesBiotemas, 2009
Apresentamos o primeiro registro da pomba-do-orvalho Patagioenas maculosa (Aves: Columbidae) para Santa Catarina, região sul do Brasil. Um indivíduo foi observado em 10 de setembro de 2006 em uma área aberta (pastagens para gado e vegetação arbustiva ...
Ivo Rohling Ghizoni-Jr   +6 more
doaj   +1 more source

General practice veterinarians’ attitudes towards avian influenza: A COM‐B analysis of barriers to backyard poultry treatment

open access: yesVeterinary Record, Volume 198, Issue 6, Page e237-e247, 14/21 March 2026.
Abstract Background The recent expansion of highly pathogenic avian influenza (HPAI) H5N1 to non‐avian species in the United States has intensified public health‐related concerns. In Great Britain, low veterinarian confidence in seeing and treating birds creates potential barriers to HPAI diagnosis and reporting.
Sol Elliott   +6 more
wiley   +1 more source

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