Results 31 to 40 of about 40,522 (221)

Long-term species richness-abundance dynamics in relation to species departures and arrivals in wintering urban bird assemblages [PDF]

open access: yes, 2019
Temporal dynamics of local assemblages depend on the species richness and the total abundance of individuals as well as local departure and arrival rates of species. We used urban bird survey data collected from the same 31 study plots and methods during
Jokimaki, Jukka, Suhonen, Jukka
core   +2 more sources

Diversity of Avifauna at the Elephant Training Center Way Kambas National Park

open access: yesJurnal Sylva Lestari, 2019
Avifauna is one of the biodiversity that has a role in the ecosystem, namely as a seed spreader, helps pollination, and as an environmental bioindicator. The Elephant Training Center (PLG) is not only a conservation centre for Sumatran elephants but also
Akhmad Kamaluddin   +2 more
doaj   +1 more source

Keanekaragaman Spesies Avifauna Di Khdtk Hambala, Nusa Tenggara Timur [PDF]

open access: yes, 2013
Special-Purposed Forest (also known as Kawasan Hutan Dengan Tujuan Khusus/KHDTK) Hambala is defined as forest area for research and development, education and training. Unfortunately, its potency has not been known completely.
Hidayat, O. (Oki)
core   +5 more sources

Functional Stability Despite Taxonomic Changes in Mixed‐Species Foraging Flock Participants Along an Elevational Gradient in Knuckles Montane Reserve, Sri Lanka 斯里兰卡纳克斯山地保护区 (Knuckles Montane Reserve) 海拔梯度上混合物种觅食群参与者的功能稳定性与分类变化

open access: yesIntegrative Conservation, EarlyView.
This research reveals the functional stability of mixed species foraging flocks (MSF) and their foraging height change with different taxonomic differences along the elevational gradient at Knuckles Montane Reserve, Sri Lanka. This offers new insights into how MSFs sustain with the elevational gradients supporting the altitudinal shifting species ...
Vimukthi. R. Gunasekeara   +3 more
wiley   +1 more source

High post-fledging survival and site persistence using mark-resight methodology for Oregon Vesper Sparrows in the Willamette Valley, Oregon

open access: yesAvian Conservation and Ecology
The ecology of the post-fledging period for small passerine birds is one of the least known stages of the avian life cycle with high rates of mortality for many species.
Bob Altman, Joel Geier, Sarah M Rockwell
doaj   +1 more source

STRUCTURE AND ECOLOGY OF BIRDS IN INTRA-MOUNTAIN DAGHESTAN

open access: yesЮг России: экология, развитие, 2018
. Aim. Results of bird counts carried out over the period 1996 – 2016 in Intra-mountain Daghestan have been analyzed. The species composition of birds was determined for the first time and the ecology of the avifauna of the research area was ...
Evgeniy V. Vilkov
doaj   +1 more source

Geographic trends in range sizes explain patterns in bird responses to urbanization in Europe [PDF]

open access: yes, 2019
The probability of occurrence of bird species in towns/cities increases with their range sizes, and Rapoport’s rule states that range sizes increase with latitude.
David Storch   +5 more
core   +2 more sources

Risk of Secondary Extinction in the Asian Songbird Trade, as Exemplified by the Selling of Crested Jayshrikes as Master Birds

open access: yesIntegrative Conservation, EarlyView.
The Asian Songbird Crises negatively affects so‐called master birds, species that are used to increase the song complexity of competitive songbirds. We assessed the trade in a master bird, the crested jayshrike, in Indonesia before and after its legal protection.
Vincent Nijman   +11 more
wiley   +1 more source

Analysis of movement recursions to detect reproductive events and estimate their fate in central place foragers

open access: yesMovement Ecology, 2020
Background Recursive movement patterns have been used to detect behavioral structure within individual movement trajectories in the context of foraging ecology, home-ranging behavior, and predator avoidance.
Simona Picardi   +9 more
doaj   +1 more source

Records of the Crowned Eagle (Urubitinga coronata) in Moxos plains of Bolivia and observations about breeding behavior [PDF]

open access: yes, 2012
The Crowned Eagle (Urubitinga coronata, Accipitridae) is a globally endangered raptor, endemic to central and southern South America. Little is known about this species in Bolivia and no nesting or prey data have been reported for the country until now ...
Berkunsky, Igor   +6 more
core  

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