Results 11 to 20 of about 2,431,248 (307)

Multi‐scale demographic analysis reveals range contraction via pseudo‐source and sink population structure

Ecosphere, 2021
Naturally occurring populations of most species are distributed non‐uniformly across their ranges. Observed changes in range‐wide population size are attributed to local‐scale processes such as fecundity and survival and to regional scale demographic ...
O. J. Robinson, V. Ruiz‐Gutierrez, R. J. Meese, E. E. Graves, M. Holyoak, C. R. Wilson, A. C. Wyckoff, B. D. Merriell, C. Snyder, E. G. Cooch   +9 more
doaj   +1 more source

Productivity drives the dynamics of a red kite source population that depends on immigration

Journal of Avian Biology, 2023
Local population dynamics are driven by local processes such as temporal variation of productivity, survival, emigration and population stage structure, and by processes originating from outside the local population, such as immigration.
Thomas Pfeiffer, Michael Schaub
doaj   +1 more source

Urban land cover and El Niño events negatively impact population viability of an endangered North American songbird

Ecosphere, 2023
Population dynamics of migratory species are influenced by land use and climate patterns experienced across the full annual cycle. Identifying environmental factors influencing productivity, survival, and their relative contributions to abundance and ...
Jennifer L. Reidy, Emily A. Sinnott, Frank R. Thompson III, Lisa O'Donnell   +3 more
doaj   +1 more source

Toward Population Management in an Integrated Care Model [PDF]

Blood Purification, 2013
Under the Patient Protection and Affordable Care Act of 2010, accountable care organizations (ACOs) will be the primary mechanism for achieving the dual goals of high-quality patient care at managed per capita costs. To achieve these goals in the newly emerging health care environment, the nephrology community must plan for and direct integrated ...
Franklin W, Maddux, Stephen, McMurray, Allen R, Nissenson   +2 more
openaire   +4 more sources

Contributions from terrestrial and marine resources stabilize predator populations in a rapidly changing climate

Ecosphere, 2021
Climate change has different and sometimes divergent effects on terrestrial and marine food webs, and in coastal ecosystems, these effects are tightly interlinked.
Chloé R. Nater, Nina E. Eide, Åshild Ø. Pedersen, Nigel G. Yoccoz, Eva Fuglei   +4 more
doaj   +1 more source

A methodology to model integrated smart city system from the information perspective [PDF]

, 2019
Rapid urban population growth challenges cities and sustainable urban development. Despite the effort deployed with conventional urban design, the current solutions are unable to significantly respond to existing challenges. The concept of smart city (SC)
Baker, Keith, Boutaleb, Tuleen, Mickovski, Slobodan B., Muvuna, Jules   +3 more
core   +2 more sources

Estimating the survival of unobservable life stages for a declining frog with a complex life history

Ecosphere, 2021
Demographic models enhance understanding of drivers of population growth and inform conservation efforts to prevent population declines and extinction.
Jonathan P. Rose, Sarah J. Kupferberg, Clara A. Wheeler, Patrick M. Kleeman, Brian J. Halstead   +4 more
doaj   +1 more source

Galaxies M32 and NGC 5102 Confirm a Near-infrared Spectroscopic Chronometer [PDF]

, 2010
We present near infrared (NIR) IRTF/SpeX spectra of the intermediate-age galaxy M32 and the post-starburst galaxy NGC 5102. We show that features from thermally-pulsing asymptotic giant branch (TP-AGB) and main sequence turn-off (MSTO) stars yield ...
Beaulieu, Bressan, Davidge, Davidge, Deharveng, Lançon, Renzini, Rose, Worthey   +8 more
core   +3 more sources

Demographic responses to climate‐driven variation in habitat quality across the annual cycle of a migratory bird species

Ecology and Evolution, 2022
The demography and dynamics of migratory bird populations depend on patterns of movement and habitat quality across the annual cycle. We leveraged archival GPS‐tagging data, climate data, remote‐sensed vegetation data, and bird‐banding data to better ...
James F. Saracco, Renée L. Cormier, Diana L. Humple, Sarah Stock, Ron Taylor, Rodney B. Siegel   +5 more
doaj   +1 more source

Hidden in plain sight: Integrated population models to resolve partially observable latent population structure

Ecosphere, 2022
Population models often require detailed information on sex‐, age‐, or size‐specific abundances, but population monitoring programs cannot always acquire data at the desired resolution. Thus, state uncertainty in monitoring data can potentially limit the
Abigail J. Lawson, Patrick G. R. Jodice, Thomas R. Rainwater, Kylee D. Dunham, Morgan Hart, Joseph W. Butfiloski, Philip M. Wilkinson, K. W. McFadden, Clinton T. Moore   +8 more
doaj   +1 more source