Results 211 to 220 of about 39,533 (262)

Urban Parks Act as Refuges for Avian Biodiversity in Chaoyang District, Beijing (China). [PDF]

Ecol Evol
Ur Rahman A, Bosso L, Ahmad S, Ullah N, Zahid M, Ismaili RRR.   +5 more
europepmc   +1 more source

Bird Diversity and Habitat Associations in the Tara Gedam Monastery Church Forest: A Seasonally Informed Study in Northwestern Ethiopia. [PDF]

Ecol Evol
Zelelew SA, Wondie M, Ashagire M.
europepmc   +1 more source

Abundance and distribution of waterbirds in Boyo wetland, Central Rift Valley region of Ethiopia: changes in abundance and distribution. [PDF]

BMC Ecol Evol
Yasin H, Tekalign W, Takele S, McMahon BJ, Desalegn A.   +4 more
europepmc   +1 more source

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Extended Family System in a Communal Bird

Science, 1981
The genealogical structure of an extended family system in a nonprimate species is described. In Mexican jays, social units are more complex genealogically than in most other communal birds and may contain grandparents, uncles, aunts, and cousins in addition to parents and older siblings.
J L, Brown, E R, Brown
openaire   +2 more sources

Soundspace partitioning to increase communication efficiency in bird communities

Artificial Life and Robotics, 2012
Birds do not always vocalize at random, but may rather divide up soundspace in such a manner that they avoid overlap with the songs of other bird species. In effect, a high degree of communication efficiency can be achieved by many simultaneously active vocalists that finely integrate songs with minimal overlap. We describe this phenomenon from several
Reiji Suzuki, Charles E. Taylor, Martin L. Cody   +2 more
openaire   +1 more source

The Ecology of Bird Communities

1989
The two volumes of John Wiens' Ecology of Bird Communities have applications and importance to the whole field of ecology. The books contain a detailed synthesis of our current understanding of the patterns of organisation of bird communities and of the factors that may determine them, drawing from studies from all over the world.
openaire   +1 more source

Early Bird I communications parameters

Communications Satellite Systems Conference, 1966
Abstract The primary mission of the Early Bird satellite is to provide uninterrupted two-way commercial quality communications between the North American and European continents. To this end, the satellite incorporates two broadband microwave repeaters that translate in frequency and amplify FM communications carriers.
openaire   +1 more source

Composition and Dynamics of the Bird Community

1999
Birds have been a favourite subject of study in forest ecosystems. They are easily detectable in comparison with other vertebrate groups, and their reproductive and feeding ecology are critically determined by forest characteristics, such as the composition and structure of both the tree canopy and understory.
Germán López-Iborra, José A. Gil-Delgado   +1 more
openaire   +1 more source

The structure and organisation of an Amazonian bird community remains little changed after nearly four decades in Manu National Park

Ecology Letters, 2023
Ari E Martínez, Ettore Camerlenghi, John Terborgh   +2 more
exaly