Results 41 to 50 of about 4,694,598 (167)

An evaluation of transmitter effects on adult and juvenile Common Terns using leg-loop harness attachments

open access: yesJournal of Field Ornithology, 2022
Marking birds with transmitters allows for the collection of data that are critical for fully understanding avian life history, but researchers must also be confident that performing such studies is as safe as possible for transmittered individuals ...
Evan J. Buck   +5 more
doaj  

Waterbird community changes in the Wilderness Lakes, South Africa (Part 3 of 3): Diving piscivores and scavengers

open access: yesKoedoe: African Protected Area Conservation and Science, 2023
Estuarine waterbodies typically support diverse and abundant waterbird communities. However, global environmental degradation as a result of anthropogenic activities is leading to species level changes in biodiversity, with top predators such as ...
Ian A. Russell
doaj   +1 more source

Responses of Antarctic seabird populations to past climate change

open access: yesEcography, EarlyView.
Higher‐order predators such as Antarctic seabirds serve as ecological indicators of environmental change and provide a crucial trophic link between marine and terrestrial ecosystems. Despite their prevalence and significance in the Antarctic ecosystem, there is a lack of understanding of the impacts of major regime shifts in paleoclimate on flighted ...
Elize Y. X. Ng   +6 more
wiley   +1 more source

Prvý priamo zaznamenaný prípad predácie kolónií vodného vtáctva norkom americkým (Neovision vison) na Slovensku / First recorded case of direct predation of waterbird colonies by American Mink (Neovision vison) in Slovakia [PDF]

open access: yesTichodroma, 2016
The article describes first recorded occurrence of American Mink at Danube river in Slovakia in 2010 and following changes in numbers of breeding Common Terns.
Štefan BENKO   +2 more
doaj  

Major histocompatibility complex class I variability of the common tern (Sterna hirundo) in Europe.

open access: yes, 2023
The common tern (Sterna hirundo) is a colonial migratory bird of the gull family (Laridae) that breeds in colonies or solitarily in the Northern Hemisphere, while spending the winter in the warmer regions of the Southern Hemisphere.
Pavlinec, Željko   +13 more
core   +1 more source

Assessing nest attentiveness of Common Terns via video cameras and temperature loggers

open access: yesAvian Research, 2020
Background While nest attentiveness plays a critical role in the reproductive success of avian species, nest attentiveness data with high temporal resolution is not available for many species.
Jeffery D. Sullivan   +6 more
doaj   +1 more source

Repurposing Bird‐Based Acoustic Models for Amphibian Surveys: Strengths and Limitations in Real‐World Deployments

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
In this study, we developed AnuraSearch, an open‐source classifier for 11 Ukrainian amphibian species, by repurposing the avian BirdNET algorithm via transfer learning to process over 18,000 h of autonomous acoustic recordings. Although the model demonstrated high precision and successfully reconstructed detailed seasonal and diel vocal activity ...
Vasylyna Strus   +5 more
wiley   +1 more source

Young Common Tern

open access: yes, 2022
A hatchling common tern calling.https://digitalcommons.usf.edu/aesc_photographs/1945/thumbnail ...

core  

Migration of black terns Chlidonias niger and common terns Sterna hirundo between south Sweden and the Atlantic coast of Africa

open access: yesJournal of Avian Biology
Light‐level geolocators were used to record the annual migration cycles of black terns Chlidonias niger (9 individuals, 11 journeys) and common terns Sterna hirundo (7 individuals, 11 journeys) breeding in southernmost Sweden.
Thomas Alerstam   +5 more
doaj   +1 more source

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