Results 1 to 10 of about 416,445 (190)

Apparent Survival of Territorial Golden Eagles Using Non‐Invasive Genetic Profiling [PDF]

open access: goldEcology and Evolution
Conservation efforts for large raptors require robust estimates of fecundity, age at maturity and survivorship and population trajectories are often particularly sensitive to change in adult survival rates.
D. Philip Whitfield   +4 more
doaj   +7 more sources

Weather Extremes in the Mediterranean Winter Are Associated With Reduced Apparent Survival and Delayed Initiation of Egg‐Laying in a Migratory Raptor [PDF]

open access: goldEcology and Evolution
Climate change increases the occurrence of extreme weather conditions, affecting ecosystems worldwide but possible impacts of these extremes on biological systems have been insufficiently studied.
Inga Kujala   +3 more
doaj   +4 more sources

Multiple weather factors affect apparent survival of European passerine birds. [PDF]

open access: yesPLoS ONE, 2013
Weather affects the demography of animals and thus climate change will cause local changes in demographic rates. In birds numerous studies have correlated demographic factors with weather but few of those examined variation in the impacts of weather in ...
Volker Salewski   +2 more
doaj   +7 more sources

The apparent diffusion coefficient can serve as a predictor of survival in patients with gliomas [PDF]

open access: goldRadiation Oncology
Background and purpose Magnetic resonance imaging is indispensable for the preoperative diagnosis of glioma. This study aimed to investigate the role of the apparent diffusion coefficient values as predictors of survival in patients with gliomas. Methods
Xue Jiang   +6 more
doaj   +4 more sources

Detection and apparent survival of PIT-tagged stream fish in winter. [PDF]

open access: yesEcol Evol, 2016
AbstractEnvironmental fluctuations exert strong control on behavior, survival, and fitness of stream biota. Technical improvements increasingly allow for tracking the response of large numbers of individuals to environmental fluctuations, for instance, by remote detection of animals equipped withPIT(passive integrated transponder) tags.PITtags were ...
Weber C   +3 more
europepmc   +7 more sources

Age‐specific, population‐level pedigree of wild black bears provides insights into reproduction, paternity, and maternal effects on offspring apparent survival [PDF]

open access: yesEcology and Evolution, 2022
Wildlife pedigrees provide insights into ecological and evolutionary processes. DNA obtained from noninvasively collected hair is often used to determine individual identities for pedigrees and other genetic analyses.
Melissa J. Reynolds‐Hogland   +5 more
doaj   +2 more sources

Potential sex-dependent effects of weather on apparent survival of a high-elevation specialist. [PDF]

open access: yesSci Rep, 2020
AbstractMountain ecosystems are inhabited by highly specialised and endemic species which are particularly susceptible to climatic changes. However, the mechanisms by which climate change affects species population dynamics are still largely unknown, particularly for mountain birds.
Strinella E   +4 more
europepmc   +6 more sources

Apparent survival rates of forest birds in eastern Ecuador revisited: improvement in precision but no change in estimates. [PDF]

open access: yesPLoS ONE, 2013
Knowledge of survival rates of Neotropical landbirds remains limited, with estimates of apparent survival available from relatively few sites and species. Previously, capture-mark-recapture models were used to estimate apparent survival of 31 species (30
John G Blake, Bette A Loiselle
doaj   +2 more sources

Beak morphology predicts apparent survival of crossbills: due to selective survival or selective dispersal? [PDF]

open access: yesJournal of Avian Biology, 2019
Dozens of morphologically differentiated populations, subspecies and species of crossbills (genus Loxia ) exist. It has been suggested that this divergence is due to variation in the conifer cones that each population specialises upon, requiring a specific beak size to efficiently separate ...
Juan Carlos Senar   +2 more
exaly   +4 more sources

Apparent survival and cost of reproduction for White-lined Tanager (Tachyphonus rufus, Thraupidae) in the northern Atlantic Rainforest, Brazil. [PDF]

open access: yesPLoS ONE, 2017
Understanding latitudinal variation in avian life-history traits has been a focus of many demographic studies around the world. However, we still know little about annual or intra-annual demographic variation within tropical regions or about how factors ...
Phoeve Macario   +9 more
doaj   +2 more sources

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