نتایج جستجو برای: local birds
تعداد نتایج: 572417 فیلتر نتایج به سال:
The removal of fruit is a consequence plant–animal interactions, and vital step in the natural regeneration cycle plant populations. This research aimed to determine effect color local landscape on plant–bird interactions an agroecosystem Southcentral Mindanao, Philippines. We set out 1500 artificial models ten sampling locations within agroecosystem. measured difference proportion predated/rem...
--Existing methods for holding passetines after capture and before handling were unsatisfactory for introducing captured Nashville Warblers (Vermivora ruficapilla) into longterm captivity. Significantly (P = 0.02) more warblers (90/98) survived confinement by a new technique described herein than by previously used methods (43/54). The new technique combined three factors that may have contribu...
Cause Chlamydiosis refers to an infection with organisms of the genus Chlamydia sp., which are bacteria that live within animal cells. Chlamydia psittaci is the species generally associated with this disease in birds. The severity of the disease differs by the strain of C. psittaci and the susceptibility of different species of birds. As a result, chlamydiosis may range from an inapparent infec...
Abstract The ways people think, feel, speak about, and act in with environments are inextricably intertwined the well-being of other living things, including birds. We report on kinds messages contained 598 examples locally-defined signs from 498 bird taxa 169 sources 123 ethnolinguistic groups. Using Peirce’s three sign forms: symbolic, iconic, indexical, we analyze one aspect human–bird inter...
This paper investigates how young pied flycatchers, Ficedula hypoleuca, and blackcaps, Sylvia atricapilla, interpret and use celestial cues. In order to record these data, we developed a computer-controlled version of the Emlen funnel, which enabled us to make detailed temporal analyses. First, we showed that the birds use a star compass. Then, we tested the birds under a stationary planetarium...
In the present study formaldehyde inactivated Montanide ISA70 based MG vaccine from the PCR confirmed positive local isolate was prepared and evaluated in broilers. An amount of immune gen per 0.3ml of the dose was 10 7 Colony forming units of the bacteria. At the age of 14 days, the broilers were randomly divided into three groups (A, B and C), each having twenty birds. Each bird of group A, B...
We briefly review the literature on social learning in birds, concluding that strong evidence exists mainly for predator recognition, song, mate choice and foraging. The mechanism of local enhancement may be more important than imitation for birds learning to forage, but the former mechanism may be sufficient for faithful transmission depending on the ecological circumstances. To date, most ins...
Olfaction represents an important sensory modality for navigation of both homing pigeons and wild birds. Experimental evidence in homing pigeons showed that airborne volatile compounds carried by the winds at the home area are learned in association with wind directions. When displaced, pigeons obtain information on the direction of their displacement using local odors at the release site. Rece...
In the last 30 years several cases of West Nile (WN) virus infection were reported in horses and humans in Europe and in the Mediterranean Basin. Most of them were determined by strains of the Lineage 1 included in the European Mediterranean/Kenyan cluster. Strains of this cluster are characterised by a moderate pathogenicity for horses and humans and limited or no pathogenicity for birds. In r...
Urban environments cover vast areas with a high density of humans and their dogs and cats causing problems for exploitation of new resources by wild animals. Such resources facilitate colonization by individuals with a high level of neophilia predicting that urban animals should show more neophilia than rural conspecifics. We provided bird-feeders across urban environments in 14 Polish cities a...
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