Results 31 to 40 of about 3,675 (193)

VARIACIÓN DEMOGRÁFICA TEMPORAL DE LA TORTUGA DE RÍO CHOCOANA, Rhinoclemmys nasuta (GEOEMYDIDAE), EN ISLA PALMA, BAHÍA MÁLAGA, PACÍFICO DEL VALLE DEL CAUCA

open access: yesActa Biológica Colombiana, 2014
Pocos estudios demográficos de larga duración han sido realizados en tortugas dulceacuícolas de Suramérica, pese a la necesidad de este tipo de investigación para esclarecer las variaciones naturales y fortalecer procesos de conservación en este grupo ...
Mario Fernando Gárces Restrepo   +2 more
doaj   +1 more source

Designing screening protocols for amphibian disease that account for imperfect and variable capture rates of individuals [PDF]

open access: yes, 2014
The amphibian chytrid fungus, Batrachochytrium dendrobatidis, is one of the main factors in global amphibian decline. Accurate knowledge of its presence and prevalence in an area is needed to trigger conservation actions. However, imperfect capture rates
Canessa, Stefano   +2 more
core   +2 more sources

Demography and Population Dynamics of the Lacertid Lizard Podarcis Bocagei in North-West Spain [PDF]

open access: yes, 1999
[Abstract] The demography and life-history traits of a population of the lacertid lizard Podarcis bocagei in north-west Spain were investigated. Most of the conclusions presented are based on mark-recapture studies carried out over a 2-year period ...
Galán, Pedro
core   +2 more sources

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

open access: yesZoologia (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   +4 more
doaj   +1 more source

The Influence of Mark-Recapture Sampling Effort on Estimates of Rock Lobster Survival. [PDF]

open access: yesPLoS ONE, 2016
Five annual capture-mark-recapture surveys on Jasus edwardsii were used to evaluate the effect of sample size and fishing effort on the precision of estimated survival probability. Datasets of different numbers of individual lobsters (ranging from 200 to
Ziya Kordjazi   +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]

open access: yes, 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   +72 more
core   +4 more sources

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

open access: yesEndangered 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   +4 more
doaj   +1 more source

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

open access: yes, 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.   +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

open access: yesJournal 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   +2 more
doaj   +1 more source

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

open access: yesEcology 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   +2 more
doaj   +1 more source

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