Results 91 to 100 of about 42,789 (239)

Intercolony Comparison of Diets of Western Gulls in Central California [PDF]

open access: yes, 2016
As human populations expand, they force free-ranging animals to adapt to an increasingly urban environment, resulting in changes in diets, reproductive success, and mortality.
Cassell, Anne L.
core   +1 more source

Nesting ecology of an ice‐associated seabird, Kittlitz's murrelet, at the northern edge of its range

open access: yesWildlife Society Bulletin, EarlyView.
We studied the Kittlitz's murrelet, an ice‐associated seabird of conservation concern, at the northern edge of its range. Over a 2‐year period, we estimated nest density and success at 2 sites, captured and telemetered nesting murrelets, and tested the use of a thermal camera to improve nest detection.
Michelle L. Kissling   +9 more
wiley   +1 more source

Molecular identification and histological aspects of Renicola sloanei (Digenea: Renicolidae) in Puffinus puffinus (Procellariiformes): a first record

open access: yesRevista Brasileira de Parasitologia Veterinária
Renicolids are parasites that inhabit the renal tubules and ureters of molluscivorous and piscivorous birds. Puffinus puffinus is a migratory seabird that was identified as the definitive host of Renicola spp.
Andressa Maria Rorato Nascimento de Matos   +8 more
doaj   +1 more source

Evaluation of drones as a tool for multi‐species nest surveys on linear rights‐of‐way

open access: yesWildlife Society Bulletin, EarlyView.
This paper examines the use of drones with infrared cameras as a tool in the detection of bird nests on linear rights‐of‐way, in comparison to standard ground‐based nest surveys. Abstract The varying application of drone use in wildlife research has expanded in recent years. With the ability to utilize a variety of different sensors (e.g., infrared [IR]
Kirsten E. Pearson   +5 more
wiley   +1 more source

Diet, phenology and body size shape nutrient release by songbirds

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Animals can dramatically alter ecosystem structure and function through the cycling and transport of nutrients in their waste. While birds are particularly capable of influencing nutrient cycles due to their high mobility, abundance, metabolism and functional diversity,
Linsey Chen   +2 more
wiley   +1 more source

Isolating Mechanisms in Seabirds [PDF]

open access: yesEvolution, 1987
In most species of birds, differences in plumage coloration or song structure act as isolating mechanisms. In seabirds, plumages are generally drab, and vocal repertoires are limited so that other phenotypic attributes must act as isolating mechanisms.
openaire   +2 more sources

The National Marine Fisheries Service’s National Bycatch Strategy [PDF]

open access: yes, 2004
The National Marine Fisheries Service (NMFS) launched its National Bycatch Strategy (NBS) in March 2003 in response to the continued fisheries management challenge posed by fisheries bycatch.
Benaka, Lee R., Dobrzynski, Tanya J.
core  

The Hellinger Correlation

open access: yes, 2019
In this paper, the defining properties of a valid measure of the dependence between two random variables are reviewed and complemented with two original ones, shown to be more fundamental than other usual postulates.
de Micheaux, Pierre Lafaye   +1 more
core   +1 more source

Record phenological responses to climate change in three sympatric penguin species

open access: yesJournal of Animal Ecology, EarlyView.
This paper is impressive because we managed to monitor extensively a really difficult place to reach and operate in. We deployed 77 cameras across Antarctica and the Sub Antarctic islands to monitor three different species of penguins. We found that they are the fastest advancing vertebrates with respect to their timing of breeding.
Ignacio Juarez Martinez   +8 more
wiley   +1 more source

Census of breeding avifauna and the status of Audouin’s Gull ( Ichthyaetus audouinii ) along the eastern Mediterranean coast of Turkey

open access: yesJournal of Field Ornithology
We conducted the first extensive breeding bird and habitat survey across 21 islands and islets spanning 600 km of the eastern Mediterranean coastline of Turkey in 2016.
Korhan Özkan, Batuhan Ç Yapan
doaj   +1 more source

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