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14.463  Articles
1 of 1.447 pages  |  10  records  |  more records»
Global loss of biodiversity is occurring at an alarming rate and is a major issue in current times. Long-term studies offer the possibility to analyse changes in biodiversity and allow assessments of anthropogenic interventions in ecosystems. At present, ... see more

This investigation was carried out in a forest on the southern borders of the Central-Russian Upland, on the Prioskolsky plateau, in the Srednedonskoy subprovince of the Pontic steppe province. The aim of this work is to identify the peculiarities of stru... see more

Studies of diurnal birds of prey may be quite indicative of the state of natural ecosystems and of the level of impact of human-induced factors on their functions. The aim of this work was to analyse the long-term dynamics of the raptor populations within... see more

Most studies focusing on Rock Sparrow populations concern their breeding biology. With this study, we aim to investigate the wintering habitat and social behaviour outside the breeding period. In the study area the species is present all year long, and, o... see more

AbstractA protected area since 1999, Kwandwe Private Game Reserve incorporates several former farms, for which past records of bird occurrences are available. No bird species appear to have been lost from the area. Between 2001 and 2005, a group of obse... see more

Background: Chukar partridge (Alectoris chukar), the national bird of Pakistan, is present in the Himalayan ranges of Balochistan, the hillside of Punjab and Sindh provinces.Objective: The aim of this study was to compare the aspects of breeding biology o... see more

The article analyzes characteristics of the species structure of the bird communities in the middle Uzh river valley in the breeding period by the ratio of the number of species and their abundance, the shares of dominant, background and rare species, the... see more

ABSTRACT · Few studies have investigated how the abundance of food resources influences the phenology of the annual cycles of tropical birds. Frugivorous birds are good models for such investigation because the abundance of their main food types, fru... see more

ABSTRACT · Few studies have investigated how the abundance of food resources influences the phenology of the annual cycles of tropical birds. Frugivorous birds are good models for such investigation because the abundance of their main food types, fru... see more

1 of 1.447 pages  |  10  records  |  more records»