Results 81 to 90 of about 44,482 (139)

Genetic and environmental factors associated with survival of a rare songbird in a fragmented urban landscape

Conservation Science and Practice
The coastal Cactus Wren (Campylorhynchus brunneicapillus) persists in small and fragmented populations throughout southern California that are subject to genetic drift and inbreeding.
Amy G. Vandergast, Anna Mitelberg, Barbara E. Kus, Kristine L. Preston, Suellen Lynn, Alexandra Houston, Robert C. Klinger   +6 more
doaj   +1 more source

Estimating long-term trends in abundance and survival for nesting flatback turtles in Kakadu National Park, Australia

Endangered Species Research, 2017
Flatback turtles Natator depressus are endemic to Australia and Papua New Guineaís tropical oceans and, although the species has an extensive distribution around northern Australia, there are few published long-term abundance trends of nesting ...
Groom, RA, Griffiths, AD, Chaloupka, M
doaj   +1 more source

Supplement 1. R code for simulating the effect of chytridiomycosis on survival and OpenBUGS code for fitting the hierarchical model of the probability of infection, the hierarchical linear model of zoospore load, and the Cormack-Jolly-Seber model incorporating the hierarchical model of the probability of infection.

, 2016
File List pr_infection_model.txt (MD5: cd685fbdf0eedad7613c370ec0e4847a) zoospore_load_model.txt (MD5: a135ca5b1cc6b7af5dbc749bbabb43db) CJS_model.txt (MD5: cc0bf7a426c7ddd03a4219b1677a7a72) simulation_code.txt (
Geoffrey W. Heard (700897), Michael P. Scroggie (2909894), Nick Clemann (2909897), David S. L. Ramsey (684704)   +3 more
core   +1 more source

Status and population dynamics of the Critically Endangered Valcheta frog Pleurodema somuncurense on the Patagonian Somuncura Plateau

Endangered Species Research, 2019
Amphibian populations are declining globally. In this scenario, detailed information on their ecology is crucial to determine the status and extinction risk of their populations and, therefore, better plan conservation activities.
MA Velasco, I Berkunsky, MS Akmentins, CA Kass, ML Arellano, TM Aguirre, JD Williams, FP Kacoliris   +7 more
doaj   +1 more source

Variants of the Jolly-Seber model used in population estimations.

, 2016
Variants of the Jolly-Seber model used in population estimations.
Peter H. Frey (2547829), Gabriella Gilkes (2547826), Holly Allan (2547832), Rupert F. Ormond (2547835), Mauvis A. Gore (2547838)   +4 more
core   +1 more source

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

, 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

Challenges and opportunities for monitoring wild Nile crocodiles with scute mark-recapture photography

Koedoe: African Protected Area Conservation and Science, 2018
The global conservation status of Nile crocodiles (Crocodylus niloticus) was last assessed in 1996. The species presents particular difficulty in monitoring because it can be cryptic, require expertise to handle, and caudal tail tags and transmitters are
Bernard W.T. Coetzee, Sam M. Ferreira, Kristine Maciejewski   +2 more
doaj   +1 more source

The Effect of Age on Survival Is Similar in Males and Females of an Aquatic Insect Species

Ecologies
Age is a critical intrinsic factor that influences the probability of survival of organisms on Earth. In many animals, the lifestyles and habitat occupancy of males and females are so different that the effect of age could be sex-dependent.
Abdeldjalil Youcefi, Hayat Mahdjoub, Rabah Zebsa, Amin Kahalerras, Hichem Amari, Abdelheq Zouaimia, Soufyane Bensouilah, Rassim Khelifa   +7 more
doaj   +1 more source

Indo-Pacific humpback dolphins (Sousa chinensis) in Hong Kong: Modelling demographic parameters with mark-recapture techniques.

PLoS ONE, 2017
Indo-Pacific humpback dolphins (Sousa chinensis) inhabiting Hong Kong waters are thought to be among the world's most anthropogenically impacted coastal delphinids.
Stephen C Y Chan, Leszek Karczmarski
doaj   +1 more source

Early-life versus adult survival in a colonising aerial insectivore: the red-rumped swallow

Animal Biodiversity and Conservation
Age-specific survival is a fundamental demographic parameter shaping population dynamics, particularly in species with medium to slow life histories. Despite increasing conservation concern for aerial insectivores, survival estimates remain scarce for ...
C. Tobella, F. Turon, J. Grajera, E. Badosa, R. Calderón, D. Oro   +5 more
doaj   +1 more source