Results 41 to 50 of about 13,875,303 (177)

High Levels of Straying in Returning, Repeat-Spawning Atlantic Salmon Between Two Neighbouring Danish Rivers. [PDF]

Ecol Evol
We studied the seaward and return migration of Atlantic salmon kelts from both wild and hatchery origin in River Skjern, Denmark. Of the 199 tagged animals, 110 reached the ocean (55%). Only 10 kelts were recorded returning after spending more than 1 year at sea.
Flávio H, Klubben Sortland L, Birnie-Gauvin K, Koed A, Larsen S, Aarestrup K.   +5 more
europepmc   +2 more sources

Survival probabilities of loggerhead sea turtles (Caretta caretta) estimated from capture-mark-recapture data in the Mediterranean Sea

Scientia Marina, 2007
Survival probabilities of loggerhead sea turtles (Caretta caretta) are estimated for the first time in the Mediterranean by analysing 3254 tagging and 134 re-encounter data from this region. Most of these turtles were juveniles found at sea.
Paolo Casale, Antonios D. Mazaris, Daniela Freggi, Roberto Basso, Roberto Argano   +4 more
doaj   +1 more source

The Effect of Novel Research Activities on Long-term Survival of Temporarily Captive Steller Sea Lions (Eumetopias jubatus). [PDF]

PLoS ONE, 2015
Two novel research approaches were developed to facilitate controlled access to, and long-term monitoring of, juvenile Steller sea lions for periods longer than typically afforded by traditional fieldwork.
Courtney Shuert, Markus Horning, Jo-Ann Mellish   +2 more
doaj   +1 more source

Cormack-Jolly-Seber model estimates of apparent annual survival and 95% confidence intervals (95% CI) for juvenile New Zealand Southern right whales.

, 2016
Cormack-Jolly-Seber model estimates of apparent annual survival and 95% confidence intervals (95% CI) for juvenile New Zealand Southern right whales.
N. J. Patenaude (845239), R. M. Fewster (845237), E. L. Carroll (845236), L. Boren (845240), C. S. Baker (845241), S. J. Childerhouse (845238)   +5 more
core   +1 more source

Seasonal survival probabilities suggest low migration mortality in migrating bats. [PDF]

PLoS ONE, 2014
Migration is adaptive if survival benefits are larger than costs of residency. Many aspects of bat migration ecology such as migratory costs, stopover site use and fidelity are largely unknown.
Simone Giavi, Marco Moretti, Fabio Bontadina, Nicola Zambelli, Michael Schaub   +4 more
doaj   +1 more source

Population and sex-specific survival estimates for Atlantic sturgeon: addressing detection probability and tag loss

Aquatic Biology, 2023
Survival estimates of animal populations provide managers with critical information on productivity, population stability, and demography. Telemetry-based survival estimates can be obtained remotely.
JE Kahn, C Hager, JC Watterson, N Mathies, A Deacy, KJ Hartman   +5 more
doaj   +1 more source

Cormack-Jolly-Seber model selection results for Anna’s Hummingbirds, stratified by age, sex and season for the tagged population at Site 1 between September 2016–2017.

, 2018
Cormack-Jolly-Seber model selection results for Anna’s Hummingbirds, stratified by age, sex and season for the tagged population at Site 1 between September 2016–2017.
Jennifer C. Brown (6078290), Rahel Sollmann (168998), Pranav S. Pandit (6078284), Michael J. Thomas (193184), Scott M. Logan (6078287), A. Peter Klimley (2512297), Lisa A. Tell (377605), Ruta R. Bandivadekar (6078281)   +7 more
core   +1 more source

Annual survival estimation of migratory songbirds confounded by incomplete breeding site-fidelity: study designs that may help [PDF]

Animal Biodiversity and Conservation, 2004
Many species of bird exhibit varying degrees of site–fidelity to the previous year’s territory or breeding area, a phenomenon we refer to as incomplete breeding site–fidelity. If the territory they occupy is located beyond the bounds of the study area or
Marshall, M. R., Diefenbach, D. R., Wood, L. A., Cooper, R. J.   +3 more
doaj  

Fin whale survival and abundance in the Gulf of St. Lawrence, Canada

Endangered Species Research, 2014
The fin whale Balaenoptera physalus, the second largest species in the animal kingdom to have lived on Earth, was heavily targeted during the industrial whaling era.
C Ramp, J Delarue, M Bérubé, PS Hammond, R Sears   +4 more
doaj   +1 more source

Age‐ and sex‐specific survival of the Gunnison's prairie dog (Cynomys gunnisoni)

Ecosphere, 2022
Age‐ and sex‐specific survival rates are essential for understanding animal population dynamics and discerning environmental influences on population parameters.
Rashidah H. Farid, Dana L. Karelus, Vanessa Hull   +2 more
doaj   +1 more source