Results 51 to 60 of about 3,341,277 (327)

Mark-recapture estimators for dual frame population size of prominent nesting structures: the effect of uncertain detection probability [PDF]

open access: yes, 2005
The combined mark-recapture and line transect sampling methodology proposed by Alpizar- Jara and Pollock [Journal of Environmental and Ecological Statistics, 3(4), 311–327, 1996; In Marine Mammal Survey and Assessment Methods Symposium. G.W. Garner, S.C.
Alpizar-Jara, R.   +2 more
core   +1 more source

Home‐site fidelity and homing behavior of the big‐headed turtle Platysternon megacephalum

open access: yesEcology and Evolution, 2021
Site fidelity refers to the restriction of dispersal distance of an animal and its tendency to return to a stationary site. To our knowledge, the homing ability of freshwater turtles and their fidelity is reportedly very low in Asia.
Fanrong Xiao   +4 more
doaj   +1 more source

Distributions and Movements of Atlantic Shark Species: A 52-Year Retrospective Atlas of Mark and Recapture Data

open access: yesMarine Fisheries Review, 2020
—The National Marine Fish- eries Service (NMFS) Cooperative Shark Tagging Program (CSTP) was initiated in 1962 as a collaborative effort between recreational anglers, the commercial fishing industry, and the NMFS.
N. Kohler, P. A. Turner
semanticscholar   +1 more source

Trappability estimates for mark–recapture data [PDF]

open access: yesCanadian Journal of Zoology, 1984
Mark–recapture methods produce more accurate estimates when a high fraction of the population is trapped. Three estimates of trappability are used in the literature, and we compare them for four species of Microtus livetrapped in Longworth traps. The trappable population is defined by the weight at first capture and varies greatly in different species.
Krebs, Charles, Boonstra, Rudy
openaire   +1 more source

Long-term trends in the use of a protected area by small cetaceans in relation to changes in population status

open access: yesGlobal Ecology and Conservation, 2014
The requirement to monitor listed species in European designated sites is challenging for long-lived mobile species that only temporarily occupy protected areas.
Barbara Cheney   +11 more
doaj   +1 more source

Spring migration of Ruffs Philomachus pugnax in Fryslân: estimates of staging duration using resighting data [PDF]

open access: yes, 2010
Seasonal bird migration involves long flights, but most time is actually spent at intermediate staging areas. The duration of stay at these sites can be evaluated with mark–recapture methods that employ day-to-day local encounters of individually marked ...
Hooijmeijer, Jos C.E.W.,   +3 more
core   +1 more source

Sertraline Treatment Can Mimic Niemann‐Pick Type C Biomarker Profile: A Diagnostic Pitfall

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Oxysterols (cholestane‐3β,5α,6β‐triol and 7‐ketocholesterol) and N‐palmitoyl‐O‐phosphocholineserine (PPCS) are sensitive biomarkers for Niemann‐Pick disease type C (NPC) screening. However, false‐positive results occur, with a biomarker profile suggestive of NPC despite the absence of pathogenic variants in genes involved in NPC or ...
Maria Makrygianni   +19 more
wiley   +1 more source

Evaluation of population densities of the common wolf spider Pardosa agrestis (Araneae: Lycosidae) in Hungarian alfalfa fields using mark-recapture

open access: yesEuropean Journal of Entomology, 2000
The absolute population density of adult Pardosa agrestis (Westring, 1862), the dominant epigeic spider species in many arable lands in Central Europe, was quantified in two alfalfa fields using a multiple mark-recapture method.
Balázs KISS, Ferenc SAMU
doaj   +1 more source

HOME RANGE AND MICROHABITAT ASSOCIATIONS OF THE SOUTHERN RED-BACKED VOLE (MYODES GAPPERI) IN NEW HAMPSHIRE FORESTS [PDF]

open access: yes, 2018
Resources, such as food and shelter, are unevenly distributed across the landscape at both macro and micro scales. Home range is one measure of space use that reflects an individual’s resource requirements (e.g., microhabitat characteristics) and ...
Tisell, Honora
core   +2 more sources

Using neutral cline decay to estimate contemporary dispersal: a generic tool and its application to a major crop pathogen [PDF]

open access: yes, 2013
Dispersal is a key parameter of adaptation, invasion and persistence. Yet standard population genetics inference methods hardly distinguish it from drift and many species cannot be studied by direct mark-recapture methods.
Amil   +46 more
core   +1 more source

Home - About - Disclaimer - Privacy