Results 21 to 30 of about 12,431 (199)

Assessing regional populations of ground-nesting marine birds in the Canadian High Arctic [PDF]

Polar Research, 2015
The Queens Channel region of Nunavut is an ecologically distinct area within the Canadian High Arctic consisting of an extensive archipelago of small, low-lying gravel islands throughout which form several localized but highly productive polynyas.
Mark Maftei, Shanti E. Davis, Mark L. Mallory   +2 more
doaj   +1 more source

Abundance, population trends, and negative associations with lake water levels for six colonial waterbird species over five decades in southern Manitoba

Avian Conservation and Ecology, 2021
Management of colonial waterbirds at regional, national, and continental scales requires up-to-date monitoring information on breeding locations, population sizes, and trends.
Ann E. McKellar, Steven E. Simpson, Scott Wilson   +2 more
doaj  

Presence of Neospora caninum DNA of Wild Birds from Turkey

Türkiye Parazitoloji Dergisi, 2021
Objective:Neospora caninum is a protozoon parasite that has a worldwide distribution and mainly causes abortion in cattle and current serological evidence shows that the disease may be also zoonotic.
Muhammet Karakavuk, Hüseyin Can, Duygu Aldemir, Ömer Döndüren, Tuğba Karakavuk, Emrah Karakavuk, Hüseyin Gökhan Özdemir, Mustafa Necati Muz, Adnan Yüksel Gürüz, Mert Döşkaya   +9 more
doaj   +1 more source

Nest-site habitat partitioning by Arctic, Common, and Roseate terns

Avian Conservation and Ecology
When closely related species that share aspects of their habitat niches nest in sympatry, selection is expected to favor species-specific differences in nest-site selection that allow birds to partition habitat. We tested habitat-partitioning theory in a
Nicholas Knutson, Ted C D'Eon, Alix A d'Entremont, Julie McKnight, Mark L Mallory, Shawn R Craik   +5 more
doaj   +1 more source

Distributing transmitters to maximize population-level representativeness in automated radio telemetry studies of animal movement

Movement Ecology, 2023
Telemetry is a powerful and indispensable tool for evaluating wildlife movement and distribution patterns, particularly in systems where opportunities for direct observation are limited. However, the effort and expense required to track individuals often
Juliet S. Lamb, Pamela H. Loring, Peter W. C. Paton   +2 more
doaj   +1 more source

Laying eggs on the same nest: unusual mixed-species clutch among three colonial shorebirds

Avocetta
Mixed clutches are relatively uncommon among colonial shorebirds and challenging to document. Here, we report the co-occurrence of three species’ eggs, belonging to Pied Avocet Recurvirostra avosetta, Little Tern Sternula albifrons and Common Tern ...
Paolo Salvador, Stefano Sponza
doaj   +1 more source

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

Journal 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, Jeffery D. Sullivan, Claire S. Teitelbaum, David F. Brinker, Peter C. McGowan, Diann J. Prosser   +5 more
doaj  

[Waders and seabirds (Charadriiformes) nesting along the north-eastern Adriatic coastline (Veneto and Friuli-Venezia Giulia) in 2008-2014: abundance, trends and major conservation issues]

Rivista Italiana di Ornitologia - Research in Ornithology, 2019
[In 2008-2014 wader and seabird nesting pairs were censused along the 220-km long coastline of the NE Adriatic Sea, in the Veneto and Friuli-Venezia Giulia regions (NE Italy). Fourteen species were regularly breeding, with an annual mean of 20,610 pairs (
Francesco Scarton, Emiliano Verza, Carlo Guzzon, Paolo Utmar, Giacomo Sgorlon, Roberto Valle   +5 more
doaj   +1 more source

Drone assessment of habitat selection and breeding success of Gull-billed Tern Gelochelidon nilotica nesting on low-accessibility sites: a case study

Rivista Italiana di Ornitologia - Research in Ornithology, 2021
The use of drones in the study of waterbird breeding biology has received considerable attention in the last years, but very few studies were made along the Mediterranean.
Francesco Scarton, Roberto Valle
doaj   +1 more source

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

Koedoe: 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