Bird ; Central America ; Dam ; Ecosystem ; Fluvial hydrology ; Habitat ; Hydraulic works ; Hydrological regime ; Impact ; Riparian vegetation ; Stream
Decline of the willow flycatcher (a riparian bird) population prompted the Federal government to declare the species endangered, triggering a major recovery effort : management and improvement of the riparian habitat of the bird population. Fluvial
hydrology and geomorphology play an important role in understanding the dynamics of the present bird population and in designing a recovery plan. The installation and operation of dams are the most important causes of hydro-geomorphic and ecological change
Prepared on the basis of source literature is a review of the distribution of the species of bird breeding in Europe. The list of species contains 478 taxe bredding naturally on European territory. The species richness of the avifauna in 45 units
Biogeography ; Bird ; California ; Coastal environment ; Deforestation ; Environmental degradation ; Population dynamics ; Suburbanization ; United States of America
Fragmentation of forests in the USA creates edge habitats which favor parasites and predators of nesting birds. A. studies this phenomenon in Coastal California, with detailed examples from Sonoma County where suburbanisation has exacerbated
Agricultural damage ; Biogeography ; Bird ; Ecological niche ; Ecology ; United States of America
The monk parakeet (Myiopsitta monarchus), native to South America, has established several successful breeding colonies in the USA. The US Department of Agriculture wants to eradicate the colonies out of fear that this bird will become a major
The wild canary bird of the Atlantic islands has been selected within the past 500 years for the richness of its song and physical appearance. The Harz Mountains of Germany became renowned for the development of fine singers| Great Britain
A study was made to determine the impact of a plantation of rubber trees Hevea brasiliensis and an adjacent suburban environment on birds inhabiting the western lowlands of peninsular Malaysia. Distribution of several bird species appeared
Afrique du Sud ; Bioclimatologie ; Biogéographie ; Bird Island ; Littoral ; Otarie ; Reproduction animale ; Température ; Vent
Bird Island in Algoa Bay supports a breeding colony of South African (Cape) fur seals. This is the easternmost extreme of their breeding range and is likely to be the most environmentally marginal of the existing fur seal colonies. Climatic
conditions on Bird Island are analysed and issues of heat stroke and starvation examined. It is shown that modest (2°C) increases in average summer temperatures would greatly increase the number of potentially lethal hot days. - (AJC)
Spatial patterns of bird abundance in New Orleans after hurricane Katrina
Bird ; Environment ; Hurricane ; Impact ; Inundation ; Louisiana ; Neighbourhood ; New Orleans ; Spatial concentration ; United States of America ; Urban area ; Wind
, while the younger, black organic soils are of Holocene age, with intervening horizons of aeolian deposition. Karstic weathering features are described. (E.C.F. BIRD).
80 species of non-marine, non-migrant vertebrates, excluding also shore birds, have been recorded from the Krakatau archipelago since the explosive eruption of 1883. 73 of these are believed to have established breeding populations and successfully
colonized the islands (47 resident land birds species, 13 bats, 11 reptiles and 2 rats). A large proportion of these colonizers consists of species with wide distributions, broad ecological tolerances and/or association with urban or rural situations.
processes have biological implications on both national and international levels. The Sahelian biotopes hold a number of endemic biological assets and constitute the main wintering ground for a significant number of Palearctic migratory bird species.
Power-line infrastructure affects birds directly and indirectly, in positive and negative way. The most conserning are threats of collisions with wires and electrocutions on power poles, but they can be minimized by considering both technical
The New York fossils show that this bird was able to live in a colder climate and in a boreal, coniferous setting at a time when appropriate food (large mammal carrion) was available. The California Condor has suffered a greater reduction about
11,000 yr B.P. when the extinction of many North American large mammals resulted in severely reduced availability of food for the California Condor and other large scavenging birds.