Results 21 to 30 of about 2,577,258 (314)

Urbanisation Leaves a Genetic Signature but No Detectable Demographic Effects in a Small Mammal Population [PDF]

open access: yesEcology and Evolution
Urbanisation influences ecological and evolutionary processes, including gene flow and survival. Understanding how genetic and demographic rates respond to urbanisation is therefore essential for predicting and managing wildlife viability in human ...
Sinah Drenske   +11 more
doaj   +2 more sources

Sustainability of apparent slip in micro-channel flows [PDF]

open access: yes, 2011
This paper was presented at the 3rd Micro and Nano Flows Conference (MNF2011), which was held at the Makedonia Palace Hotel, Thessaloniki in Greece.
Pawar, PS   +3 more
core   +6 more sources

Evaluating the Impact of Headstarting on the Critically Endangered Spoon-Billed Sandpiper Calidris pygmaea

open access: yesDiversity, 2023
Headstarting is a conservation approach that suggests offering an advantage to a population by improving egg production, survival of embryos and/or juveniles.
Egor Y. Loktionov   +10 more
doaj   +1 more source

Emigration effects on estimates of age‐ and sex‐specific survival of two sciurids

open access: yesEcology and Evolution, 2022
Age‐ and sex‐specific survival estimates are crucial to understanding important life history characteristics, and variation in these estimates can be a key driver of population dynamics.
Matthew J. Weldy   +2 more
doaj   +1 more source

GPS collars have an apparent positive effect on the survival of a large carnivore [PDF]

open access: yesBiology Letters, 2021
Are instrumented animals representative of the population, given the potential bias caused by selective sampling and the influence of capture, handling and wearing bio-loggers? The answer is elusive owing to the challenges of obtaining comparable data from individuals with and without bio-loggers.
Cyril Milleret   +5 more
openaire   +3 more sources

Geographic and Temporal Variation in Annual Survival of a Declining Neotropical Migrant Hummingbird (Selasphorus rufus) Under Varying Fire, Snowpack, and Climatic Conditions

open access: yesFrontiers in Ecology and Evolution, 2022
Rufous hummingbirds (Selasphorus rufus) have shown consistent declines in abundance since 1970, with an acceleration in this trend starting in the mid-2000s. Demographic data is needed to isolate possible drivers.
Anna Drake   +4 more
doaj   +1 more source

Variable age structure and apparent density dependence in survival of adult ungulates [PDF]

open access: yesJournal of Animal Ecology, 2003
SummaryLarge herbivores have strongly age‐structured populations. Because recruitment often decreases as population density increases, in unexploited populations the proportion of older adults may increase with density. Because survival senescence is typical of ungulates, ignoring density‐dependent changes in age structure could lead to apparent ...
Festa-Bianchet, M.   +2 more
openaire   +3 more sources

How the importance of survival estimates in estimating Whinchat population dynamics depends on the scale of migratory connectivity and site fidelity [PDF]

open access: yes, 2015
Accurate monitoring of whinchat population dynamics requires accurate estimates of breeding season survival and productivity, non-breeding survival and site fidelity (dispersal, immigration and emmigration).
Cresswell, Will
core   +2 more sources

Killer whale (Orcinus orca) population dynamics in response to a period of rapid ecosystem change in the eastern North Atlantic

open access: yesEcology and Evolution, 2021
This study investigates survival and abundance of killer whales (Orcinus orca) in Norway in 1988–2019 using capture–recapture models of photo‐identification data.
Eve Jourdain   +7 more
doaj   +1 more source

Home - About - Disclaimer - Privacy