Search results for "mark–recapture"

showing 3 items of 3 documents

Lobster and cod benefit from small-scale northern marine protected areas: inference from an empirical before - after control-impact study

2013

Published version of an article from the journal: Proceedings of the Royal Society B-Biological Sciences. Alsop available from the Royal Society: http://dx.doi.org/10.1098/rspb.2012.2679 Open Access Marine protected areas (MPAs) are increasingly implemented as tools to conserve and manage fisheries and target species. Because there are opportunity costs to conservation, there is a need for science-based assessment of MPAs. Here, we present one of the northernmost documentations of MPA effects to date, demonstrated by a replicated before-after control-impact (BACI) approach. In 2006, MPAs were implemented along the Norwegian Skagerrak coast offering complete protection to shellfish and parti…

1001Conservation of Natural Resources60FisheriesInference69Impact studyBiologyBody sizeGeneral Biochemistry Genetics and Molecular BiologyAnimalsBody SizeHomarus gammarusVDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497EcosystemResearch ArticlesGeneral Environmental ScienceVDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Resource biology: 921General Immunology and MicrobiologyNorwayMarine reservebaseline informationmarine reservesbefore–after control-impactGeneral MedicineNephropidaeFisheryGadus morhuaScale (social sciences)mark–recaptureMarine protected areaGeneral Agricultural and Biological Sciences
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Selection analysis on the rapid evolution of a secondary sexual trait

2015

Evolutionary analyses of population translocations (experimental or accidental) have been important in demonstrating speed of evolution because they subject organisms to abrupt environmental changes that create an episode of selection. However, the strength of selection in such studies is rarely measured, limiting our understanding of the evolutionary process. This contrasts with long-term, mark–recapture studies of unmanipulated populations that measure selection directly, yet rarely reveal evolutionary change. Here, we present a study of experimental evolution of male colour in Trinidadian guppies where we tracked both evolutionary change and individual-based measures of selection. Guppie…

MalePopulationLongevityGenetic FitnessColorBiologyMating PreferenceMedical and Health SciencesGeneral Biochemistry Genetics and Molecular BiologyMark and recaptureGeneticGeneticssexual selectionAnimalsSelection GeneticeducationSelectionrapid evolutionResearch ArticlesGeneral Environmental ScienceExperimental evolutioneducation.field_of_studyPoeciliaGeneral Immunology and MicrobiologyReproductive successAgricultural and Veterinary SciencesAnimalHuman GenomeGeneral MedicineBiological SciencesMating Preference AnimalBiological EvolutionfitnessGenetic divergenceGood Health and Well BeingPhenotypeEvolutionary biologySexual selectioncommon garden experimentsTraitta1181mark–recaptureGenetic FitnessGeneral Agricultural and Biological Sciencesmark-recapture
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Are habitat loss, predation risk and climate related to the drastic decline in a Siberian flying squirrel population? A 15 year study

2014

To devise effective conservation actions, it is important to know which factors are associated with the population parameters of a declining population. Using mark–recapture methods, we estimated the annual population size, growth rate and survival probability of an ear-tagged flying squirrel population over a 15-year period in a 4,500 ha study area in western Finland. The species is considered vulnerable, but detailed knowledge concerning population sizes or trends is lacking. The population parameters and changes therein were regressed against habitat availability, an indicator of predation pressure, and mean winter temperature (an indicator of climate change), to reveal potential reasons…

population regulationfungilandscape changealternative prey hypothesismark–recapture analysismaisemaekologiapopulaation säätelyvaihtoehtosaalishypoteesimerkintä-takaisinpyyntimenetelmä
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