Results 31 to 40 of about 3,606 (149)

Study on the population structure of the paradoxical frog, Pseudis bolbodactyla (Amphibia: Anura: Hylidae), using natural markings for individual identification

Zoologia (Curitiba), 2013
The goal of this study was to assess the population structure of Pseudis bolbodactyla Lutz, 1925 using natural markings to identify individuals. Recruitment, survival, and population size estimations were obtained using the Jolly-Seber stochastic method.
Werther P. Ramalho, Rafael F. Jorge, Leandro B. Baiocchi, Alfredo P. Peña, Ricardo A. P. Pires   +4 more
doaj   +1 more source

Effects of growth rate, size, and light availability on tree survival across life stages: a demographic analysis accounting for missing values and small sample sizes. [PDF]

, 2015
The data set supporting the results of this article is available in the Dryad repository, http://dx.doi.org/10.5061/dryad.6f4qs. Moustakas, A. and Evans, M. R.
A Matossian, A Moustakas, A Moustakas, A Moustakas, A Moustakas, A Moustakas, Aristides Moustakas, C Bigler, C Bigler, C Lusk, CE Frangakis, D Gravel, DA Coomes, DS Falster, E Jones, E Jones, EV Groeneveld, F Abadi, F Colchero, F Serinaldi, FJ Sterck, G Chen, G Kunstler, G Lahoreau, GC Jacoby, GC White, GC White, H Flores-Moreno, H Pretzsch, HA Meyer, HM Alexander, I Szabo, J Peñuelas, J Piffady, JF Franklin, JH Brown, JP Caspersen, JR Packham, K Hemming, KP Burnham, L Nieto-Barajas, M Atkinson, M Beaudet, M Kery, M Kéry, M Ugarte, M Westoby, M Žukovič, Matthew R Evans, MR Evans, MR Evans, MR Evans, MS Zens, P García-Soidán, P Harcombe, P Rock, P Wardle, PH Wyckoff, R Harmer, R Pradel, R Tsujino, RK Kobe, RK Kobe, RM Dorazio, RP Shefferson, S Fraver, S Pledger, S Schwinning, SW Pacala, TJ Givnish, X Song, X Wang, Y Onoda   +72 more
core   +4 more sources

Apparent survival probability and abundance of juvenile green turtles in the foraging ground at Kuroshima Island, Ryukyu Archipelago

Endangered Species Research, 2023
An understanding of the survival probability and abundance of endangered species is critical for their effective conservation and management. In this study, long-term capture-mark-recapture data were used to estimate the apparent survival probability and
K Kameda, M Wakatsuki, M Takase, Y Nakanishi, N Kamezaki   +4 more
doaj   +1 more source

Evaluating trends in abundance of immature green turtles, Chelonia mydas, in the Greater Caribbean [PDF]

, 2005
Many long-lived marine species exhibit life history traits. that make them more vulnerable to overexploitation. Accurate population trend analysis is essential for development and assessment of management plans for these species. However, because many of
Bjorndal, Karen A., Bolten, Alan B., Chaloupka, Milani Y.   +2 more
core   +1 more source

Reproduction, growth rate and dispersal of the dark chub, Candidia sieboldii, as estimated by using the mark–release–recapture method

Journal of Freshwater Ecology, 2017
We investigated the breeding season, growth rate and dispersal of the dark chub, Candidia sieboldii, an endangered species in Japan. A mark–release–recapture survey was performed in three branches of the Ishizu River system in Osaka Prefecture, Japan ...
Haruka Matsuoka, Norio Hirai, Minoru Ishii   +2 more
doaj   +1 more source

Complete tag loss in capture–recapture studies affects abundance estimates: An elephant seal case study

Ecology and Evolution, 2020
In capture–recapture studies, recycled individuals occur when individuals lose all of their tags and are recaptured as though they were new individuals. Typically, the effect of these recycled individuals is assumed negligible. Through a simulation‐based
Emily Malcolm‐White, Clive R. McMahon, Laura L. E. Cowen   +2 more
doaj   +1 more source

Taking individual heterogeneity in mortality risks into account in demographic studies of wild animal populations: development and use of statistical models. [PDF]

, 2007
The Cormarck-Jolly-Seber model incorporating frailty implemented in WinBUGS, using the 9000 kittiwake’s dataset monitorized during 22 years, showed that the convergence is very low over computational view. We developed different kind of multistate model,
Alpizar-Jara, R., Cam, E., Monteiro, J.F.   +2 more
core  

Population Dynamics of Northern Pearl Dace Margariscus nachtriebi in Anthropogenically Altered Headwater Streams of the Nebraska Sandhills Ecoregion

River Research and Applications, EarlyView.
ABSTRACT Empirical evidence of population demographic responses to environmental perturbations is a major knowledge gap for aquatic vertebrate populations. Extensive habitat alteration including channelization of headwater streams influences the habitat template on which small‐bodied fish are dependent to carry out distinct life stages and maintain or ...
Joseph Spooner, Jonathan Spurgeon
wiley   +1 more source

Capture-mark-recapture modelling suggests an Endangered status for the Mayotte Island (eastern Africa) population of Indo-Pacific bottlenose dolphins

Endangered Species Research, 2014
We evaluated whether the Indo-Pacific bottlenose dolphins around the fast-developing island of Mayotte are threatened. We used opportunistic photo-identification data and capture-mark-recapture models to estimate key demographic parameters and then ...
C Pusineri, C Barbraud, J Kiszka, S Caceres, J Mougnot, G Daudin, V Ridoux   +6 more
doaj   +1 more source

Estimation of Survival Rates from a Jolly-Seber Model with Tag Loss [PDF]

, 1984
22 pages, 1 article*Estimation of Survival Rates from a Jolly-Seber Model with Tag Loss* (Kremers, Walter K.) 22 ...
Cornell University. Biometrics Unit., Cornell University. Dept. of Biological Statistics and Computational Biology., Cornell University. Dept. of Biometrics., Kremers, Walter K.   +3 more
core