Results 41 to 50 of about 136,603 (185)

Does foraging efficiency vary with colony size in the fairy martin Petrochelidon ariel? [PDF]

open access: yes, 2009
Colonial breeding occurs in a wide range of taxa, however the advantages promoting its evolution and maintenance remain poorly understood. In many avian species, breeding colonies vary by several orders of magnitude and one approach to investigating the ...
Alexander   +37 more
core   +2 more sources

Striped-tailed Yellow-finch nesting success in abandoned mining pits from central Brazilian cerrado

open access: yesBrazilian Journal of Biology
Suitability of degraded areas as breeding habitats can be tested through assessment of nest predation rates. In this study we estimated nest success in relation to several potential predictors of nest survival in the Stripe-tailed Yellow-finch (Sicalis ...
DT. Gressler, MÂ. Marini
doaj   +1 more source

Hydrology management influences nest survival but not clutch size in Lesser Scaup

open access: yesAvian Conservation and Ecology, 2022
Components of reproductive success such as clutch size and nest survival may greatly affect avian population growth rates. Understanding how environmental conditions influence temporal variation in these demographic parameters could thus provide valuable
Kelsey L. Navarre   +2 more
doaj  

Thrips domiciles protect larvae from desiccation in an arid environment [PDF]

open access: yes, 2014
Desiccation is a particular risk for small animals in arid environments. In response, many organisms “construct niches,” favorable microenvironments where they spend part or all of their life cycle. Some maintain such environments for their offspring via
Gilbert, James D.J.
core   +3 more sources

Reproductive Consequences of Nest Site Use in Fork-tailed Storm-Petrels in the Aleutian Islands, Alaska: Potential Lasting Effects of an Introduced Predator

open access: yesAvian Conservation and Ecology, 2010
We examined the reproductive consequences of differential nest site use in Fork-tailed Storm-Petrels (Oceanodroma furcata) in the Aleutian Islands, Alaska, where birds on islands where foxes were introduced nest in rocky substrate rather than in typical ...
Brie A. Drummond, Marty L. Leonard
doaj   +1 more source

Factors influencing productivity of eastern wild turkeys in northeastern South Dakota

open access: yesEcology and Evolution, 2020
Population growth is highly sensitive to changes in reproductive rates for many avian species. Understanding how reproductive rates are related to environmental conditions can give managers insight into factors contributing to population change.
Reina M. Tyl   +2 more
doaj   +1 more source

Lesser Prairie‐chicken incubation behavior and nest success most influenced by nest vegetation structure

open access: yesEcology and Evolution, 2023
Incubation breaks are necessary for any nesting bird but can increase the mortality risk of the nest or attending parent. How intrinsic and extrinsic variables affect nest attentiveness—the proportion of time a female is on nest during incubation— and ...
Jacquelyn M. Gehrt   +3 more
doaj   +1 more source

Survival and Growth of American Alligator (Alligator mississippiensis) hatchlings after artificial incubation and repatriation [PDF]

open access: yes, 2006
Hatchling American Alligators (Alligator mississippiensis) produced from artificially incubated wild eggs were returned to their natal areas (repatriated).
Kubilis, Paul S.   +4 more
core   +1 more source

Habitat selection and nest survival in two Great Plains shorebirds

open access: yesAvian Conservation and Ecology, 2020
As breeding populations of many grassland bird species decline, assessments of breeding habitat selection and reproductive success can provide useful insight into breeding ecology to support conservation delivery.
Hannah Specht   +6 more
doaj  

Reproductive performance of resident and migrant males, females and pairs in a partially migratory bird [PDF]

open access: yes, 2017
We thank everyone from the Centre for Ecology & Hydrology (CEH) who contributed to data collection, and Scottish Natural Heritage for access to the Isle of May National Nature Reserve.
Burthe, Sarah J.   +6 more
core   +3 more sources

Home - About - Disclaimer - Privacy