Results 51 to 60 of about 15,406 (254)

The ‘seet’ danger call: an active nest warning in superb fairy-wrens

open access: yesRoyal Society Open Science
Alarm calls are a common, widely studied antipredator behaviour, with species producing different call types that can have distinct functions. Here, we describe a new type of alarm call in the superb fairy-wren (Malurus cyaneus), the ‘seet’ danger call ...
Lauren K. Common   +4 more
doaj   +1 more source

White light reduces flight height of birds in low‐density migration corridor

open access: yesThe Journal of Wildlife Management, EarlyView.
We conducted an experiment to better understand the effects of artificial light at night treatments of varying spectral power distributions on in‐flight migratory bird behavior as measured by a portable radar. Broad‐spectrum white light emissions reduced avian flight height as compared to dark periods and more than other light treatments.
Miguel F. Jimenez   +6 more
wiley   +1 more source

Fat scoring in four sparrow species as an estimation of body condition: a validation study

open access: yesJournal of Field Ornithology, 2022
In avian biology, body condition has been positively correlated with survivability, reproduction, migration, and habitat quality. A common method of assessing avian body condition, which typically refers to measures of energy stores, is a qualitative ...
Elizabeth S. Wenker   +3 more
doaj  

Footedness predicts escape performance in a passerine bird_data

open access: yes, 2020
Datasets of Footedness predicts escape performance in a passerine ...
Jinxin Guo (8483161)   +7 more
core   +1 more source

Digital surveillance of animals and nature recovery

open access: yesPeople and Nature, EarlyView.
Abstract Digital surveillance technologies (DSTs) are widely applied in nature recovery for their potential to generate novel data on species and ecosystems through digital tracking, automation (e.g. from hazardous locations) and from newly recruited citizen scientists.
William M. Adams
wiley   +1 more source

Adult snow bunting survival and population change from decades of monitoring effort in Iceland

open access: yesArctic Science
Snow buntings (Plectrophenax nivalis, Salomonsen, 1931) are widespread Arctic passerines, yet population trends and demographic parameters are largely unknown across their range.
S. Thorstensen   +5 more
doaj   +1 more source

Relative importance of deterministic and stochastic processes for beta diversity of bird assemblages in Yunnan, China

open access: yesEcosphere, 2021
Evaluating the relative importance of deterministic and stochastic processes underlying taxonomic and functional beta diversity is crucial in community ecology, because it can reveal the dominant processes of community assembly.
Xuelian He, Calum Brown, Luxiang Lin
doaj   +1 more source

Quantifying Migratory Bat Movements in Central Europe Across Seasons and Years Using a Vertical‐Looking Radar

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Vertical‐looking radar provides a first multi‐year analysis of migratory bat phenology in Europe. Bat activity was lowest in winter, increased from spring, and peaked in summer, with similar timing of pre‐ and post‐maternity migrations across years.
Silvia Giuntini   +5 more
wiley   +1 more source

Occurrence and molecular characterisation of respiratory bacterial infections in pet birds: A gender and age-specific analysis

open access: yesJournal of Veterinary and Animal Sciences
The study examined 76 pet bird carcasses at the Department of Veterinary Pathology, CVAS, Mannuthy. The birds were categorised into four major groups: Psittaciformes, Passeriformes, Columbiformes and Galliformes.
C. Udhayakumar   +6 more
doaj   +1 more source

2003 Global diversification rates of passerine birds

open access: yes, 2003
The distribution of species richness in families of passerine birds suggests that the net rate of diversification was significantly higher than average in as many as 7 out of 47 families.
Robert E. Ricklefs
core   +1 more source

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