Results 101 to 110 of about 224,713 (209)

Validation of a novel time-to-event nest density estimator on passerines: An example using Brewer's sparrows (Spizella breweri).

open access: yesPLoS ONE, 2019
Human impacts on natural resources increasingly necessitate understanding of the demographic rates driving wildlife population trends. Breeding productivity in many avian species is the demographic parameter that primarily influences population ...
Kaitlyn M Reintsma   +2 more
doaj   +1 more source

RELATIONSHIP BETWEEN NEST SUCCESS AND CONCEALMENT IN TWO GROUND-NESTING PASSERINES

open access: yesJournal of Field Ornithology, 2000
Abstract We examined vegetation characteristics around nest sites of the Hermit Thrush (Catharus guttatus) and Ovenbird (Seiurus aurocapillus) for three summers in the northern-and mixed-hardwood forests of northern Wisconsin and the Upper Peninsula of Michigan to test the hypothesis that nests with greater concealment are less vulnerable to ...
David J. Flaspohler   +2 more
openaire   +1 more source

Asymmetric seasonal nest site competition between Great Tits and House Sparrows [PDF]

open access: yes, 2018
Using nest boxes with different sized entrances, we experimentally examined whether a large species of cavity breeder (House Sparrow, Passer domesticus) affects the nest box occupancy and breeding success of a smaller species (Great Tit, Parus major ...
Charter, Motti   +2 more
core  

The effects of land use changes on site occupancy and breeding success of the barn owl (Tyto alba) from 1993 to 2020

open access: yesGlobal Ecology and Conservation
Land use changes, driven by human activities such as agricultural intensification and urban expansion, have drastic effects on biodiversity. As these changes are anticipated to continue, understanding species’ adaptations to their evolving habitats is ...
Estelle Milliet   +5 more
doaj   +1 more source

The Distribution and Reproductive Success of the Western Snowy Plover along the Oregon Coast - 2009 [PDF]

open access: yes, 2009
From 3 April – 23 September 2009 we monitored the distribution, abundance and productivity of the federally Threatened Western Snowy Plover (Charadrius alexandrinus nivosus) along the Oregon coast.
Castelein, Kathleen J.   +4 more
core   +1 more source

Estimates of Southern White-tailed Ptarmigan daily nest survival from multiple sites in the Southern Rocky Mountains of Colorado

open access: yesAvian Conservation and Ecology
Estimating vital rates of avian species is important to understand population dynamics and develop potential conservation strategies that target rates for management. Avian species have reduced potential for high annual fecundity in alpine ecosystems due
Gregory T. Wann   +7 more
doaj   +1 more source

Western Kingbird (Tyrannus verticalis): Recently Established Breeding Bird in Arkansas [PDF]

open access: yes, 2004
The Western Kingbird (Tyrannus verticalis) has nested for six consecutive years in Arkansas since 1998. Eleven nests of this species were observed in the summer of 2003 in urban areas of Fort Smith (Sebastian Co.) and Van Buren (Crawford Co.).
Ellis, Elizabeth, Kannan, Ragupathy
core   +1 more source

Invasive Wild pigs as primary nest predators for Wild turkeys [PDF]

open access: yes, 2020
Depredation of wild turkey (Meleagris gallopavo) nests is a leading cause of reduced recruitment for the recovering and iconic game species. invasive wild pigs (Sus scrofa) are known to depredate nests, and have been expanding throughout the distributed ...
Hewitt, David G.   +4 more
core   +1 more source

Measuring congruence between available and selected vegetation at wild turkey nest sites

open access: yesWildlife Society Bulletin
Processes underlying nest‐site selection are often considered drivers influencing wild turkey (Meleagris gallopavo ssp.) nest success. Thus, decisions by females to identify nest sites should govern all other components of reproductive habitat selection ...
Landon R. Schofield   +4 more
doaj   +1 more source

Nest Success and Nesting Habits of Eastern Kingbirds and Other Flycatchers

open access: yesThe Condor, 1983
-Patterns of nest placement and its relationship to nest success in the Eastern Kingbird (Tyrannus tyrannus) were studied in populations breeding in New York and Kansas. Data were augmented with information on nest placement in other open-nesting tyrannids in order to examine the hypothesis that these flycatchers place their nests chiefly so as to ...
openaire   +3 more sources

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