Results 71 to 80 of about 787 (144)

ESTIMATION OF NOBLE CRAYFISH (ASTACUS ASTACUS L.) POPULATION SIZE IN THE VELIKA PAKLENICA STREAM (CROATIA)

Knowledge and Management of Aquatic Ecosystems, 2004
Astacus astacus is one of four native European crayfish species living in Croatian freshwaters. It is naturally distributed in rivers belonging to the Black Sea Basin.
MAGUIRE I., HUDINA S., ERBEN R.
doaj   +1 more source

Assessing the success of conservation translocation establishment: Post‐translocation demography of Nubian giraffe (Giraffa camelopardalis camelopardalis) in Uganda

Conservation Science and Practice
Conservation translocations are increasingly important for restoring and augmenting wild populations of extirpated species or those diminishing rapidly.
Michael Butler Brown, Herbert Kasozi, Robert Aruho, Stephanie Fennessy, Sara Ferguson, Arthur Muneza, Julian Fennessy   +6 more
doaj   +1 more source

Demography and Behaviour of Teinopodagrion oscillans (Odonata: Megapodagrionidae) in a Protected Area of the Colombian Andean Region

Insects
The demography and behaviour of Teinopodagrion oscillans was studied in a protected area in the Andean region of Colombia. Adult damselflies were individually marked, and using their recapture histories, we estimated survival, longevity, sex ratio, and ...
Fredy Palacino-Rodríguez, Diego Andres Palacino, Andrea Penagos Arevalo, Adolfo Cordero-Rivera   +3 more
doaj   +1 more source

And the First One Now Will Later Be Last: Time-Reversal in Cormack–Jolly–Seber Models

Statistical Science, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

Evaluating camera survey methods for estimating wild turkey abundance

Wildlife Society Bulletin
Accurately estimating population parameters rests on methodological approaches that provide unbiased, cost‐effective estimates; however, assessing accuracy of estimates can be vexing as true abundance is rarely known.
Byron R. Buckley, Jason B. Hardin, Michael J. Chamberlain, Bret A. Collier   +3 more
doaj   +1 more source

Estimation des paramètres démographiques d'une population par le modèle de Jolly-Seber. Programme BASIC d'application

, 1988
This report describes the use of the Jolly-Seber method, a mark-recapture technique for estimating demographic parameters of open animal populations, meaning populations where processes such as mortality, recruitment, immigration, and emigration can occur. This method is an extension of the Schnabel method, which applies to closed populations.
openaire   +3 more sources

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

Avoiding bias in estimates of population size for translocation management. [PDF]

Ecol Appl, 2023
Bickerton KT, Ewen JG, Canessa S, Cole NC, Frost F, Mootoocurpen R, McCrea R.   +6 more
europepmc   +1 more source

The first comprehensive population size estimations for the highly endangered largest diving beetle Dytiscus latissimus in Europe. [PDF]

Sci Rep, 2023
Balalaikins M, Schmidt G, Aksjuta K, Hendrich L, Kairišs K, Sokolovskis K, Valainis U, Zolovs M, Nitcis M.   +8 more
europepmc   +1 more source

Evaluation of headstarting as a conservation tool to recover Blanding's Turtles (Emydoidea blandingii) in a highly fragmented urban landscape. [PDF]

PLoS One, 2023
Wijewardena T, Keevil MG, Mandrak NE, Lentini AM, Litzgus JD.   +4 more
europepmc   +1 more source