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A new study by scientists at the Cornell Lab of Ornithology and other institutions confirms that most birds -- but not all -- synchronize their migratory movements with seasonal changes in v...
Do Coarser Gap Mosaics in Conifer Plantations Induce More Seed Dispersal by Birds? Temporal Changes during 12 Years after Gap Creation
seed dispersal bird-dispersed seed conifer plantation gap mosaic temporal change
2024/2/28
The creation of canopy gaps is thought to be an efficient silvicultural operation to diversify species composition of monoculture conifer plantations; however, the shortage of regeneration materials i...
Phoenix is losing birds, but homeowners' plants offer habitat for avian desert-dwellers（图）
Phoenix losing birds homeowners plants habitat avian desert-dwellers
2019/11/22
Find related stories on NSF's Long-Term Ecological Research Program at this link.Ecologists have long wondered about the impact of urbanization on bird biodiversity. Are cities with higher avian biodi...
Consequences of Fragmentation of Tropical Moist Forest for Birds and Their Role in Predation of Herbivorous Insects
avian diversity caterpillar predation fragmentation herbivory
2015/11/13
The consequences of habitat alteration on the role of understory insectivorous birds as predators of herbivorous insects in tropical forests are poorly understood. To examine whether fragmentation may...
The presence of Mycobacterium avium subsp. avium in common pheasants (Phasianus colchicus) living in captivity and in other birds, vertebrates, non-vertebrates and the environment
tuberculosis Mycobacterium avium complex zoonosis food safety
2015/4/15
Although avian mycobacteriosis is not prevalent among domestic fowl used for intensive husbandry, it has been described in both free living birds and birds in captivity, e.g., zoological gardens and s...
The ability to perceive the near ultraviolet part of the light spectrum (the wavelength 320–400 nm) has been detected in many bird species. This ability is an important bird sense. The ecological impo...
Intraspecific and interspecific chemosignals in birds: a review
olfactory pheromone odor waxes parasit
2015/3/13
This review of chemosignals in birds considers intraspecific oriented chemosignals such as pheromones, interspecific chemosignals, and chemical interactions with parasites. Intraspecific chemosignals ...
Fungal flora in the trachea of birds from a wildlife rehabilitation centre in Spain
birds yeasts moulds fungi wildlife Candida Aspergillus
2015/3/13
In the present work we study the prevalence of fungal flora in the tracheal epithelium of wild birds in a rehabilitation centre. Two hundred and sixteen birds representing 26 species from seven orders...
Nematodes from the genus Ascaridia parasitizing psittaciform birds: a review and determination key
ascarids parrots morphometry distribution
2015/2/5
In parrots (Psittaciformes), seven nematode species of genus Ascaridia have been found so far, both in wild birds and in birds in captivity. Five species are specific for parrots: Ascaridia hermaphrod...
Quantitative and qualitative damage caused by mammals and birds to the planting and natural seeding
woody plants damage mammals birds
2015/1/29
In the years 1999–2000, I studied damage to transplants in the planting and wildlings in the natural seeding at the locality Zamrlô in the Starohorské vrchy Mts. (750–1,000 m a.s.l., NE exposure,...
Aquaculture ponds, a Jamaican study: the impact of birds on fish production
Tilapia aquaculture negative impact predation water birds
2010/9/14
The increasing use of freshwater fish farms by water birds poses conservation and economic problems as birds compete with man. This study sought to assess bird species diversity of an artificial wetla...
Seed Dispersal by Frugivorous Birds in a Coniferous Plantation
mixed conifer/broad-leaved forest frugivorous bird Japanese cedar plantation seed dispersal seed rain
2009/8/28
In order to evaluate the role of frugivorous birds in the dispersal of broad-leaved tree seeds in a plantation of Japanese cedar, Cryptomeria japonica D. Don, we monitored seed rain with 120 seed trap...
Mitigating Effects of Broadleaved Forest Fragmentation on Birds:Proposal of Plantation Matrix Management
habitat loss landscape ecology patch area stand composition stand structure
2009/8/27
I reviewed the effects on forest birds of replacing broadleaved forests at the patch and landscape levels, with emphasis on replacement by plantations. I proposed methods mitigating such effects. Redu...
Molecular Bases for Seasonal Reproduction in Birds
circadian clock Japanese quail photoperiodism thyroid hormone
2009/7/31
Appropriate timing of various seasonal processes is crucial to the survival and reproductive success of animals inhabiting temperate regions. When seasonally breeding animals are subjected to annual c...
The Cloacal Test:a Method for Testing Anti-androgenic Effects of Chemicals in Birds
anti-androgenic chemical cloacal protrusion androgen Japanese quail
2009/7/31
The aim of this study was to develop a method to test the anti-androgenic effects of chemicals in birds. Male Japanese quail were castrated to lead the regression of cloacal protrusion, and they were ...