Results 61 to 70 of about 35,099 (242)
Koedoe: African Protected Area Conservation and Science, 2018 The global conservation status of Nile crocodiles (Crocodylus niloticus) was last assessed in 1996. The species presents particular difficulty in monitoring because it can be cryptic, require expertise to handle, and caudal tail tags and transmitters are
Bernard W.T. Coetzee +2 more
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Estimating Abundance of Siberian Roe Deer Using Fecal-DNA Capture-Mark-Recapture in Northeast China
Animals, 2020 It is necessary to estimate the population abundance of deer for managing their populations. However, most estimates are from high-density populations inhabiting the forests of North America or Europe; there is currently a lack of necessary knowledge ...
Yuehui Li +5 more
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bioRxiv, 2019 Estimating abundance is one of the most fundamental and important aspects of population biology, with major implications on how the status of a population is perceived and thus on conservation and management efforts.
Timothy R. Frasier +5 more
semanticscholar +1 more source
Growth of the purple snail Plicopurpura pansa in Baja California Sur, Mexico
Ciencias Marinas, 2003 To study the growth of the purple snail Plicopurpura pansa at the northern limit of its distribution, from 1999 to 2001 monthly random samples were obtained from two beaches in the southern part of the Baja California Peninsula (Mexico): one on the ...
M Ramírez-Rodríguez, LCA Naegel
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Knowledge and Management of Aquatic Ecosystems, 2011 Catch per unit effort (CPUE) is used as a standardized trapping method by local fishermen and in monitoring studies. In this study, CPUE was compared with population estimates made with a capture-recapture method based on the passive ...
Zimmerman J. K.M., Palo R. T.
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FishesDespite the high diversity of elasmobranch fishes in the Balearic Islands, knowledge of their biology and population dynamics is still scarce. A recent mark-and-recapture experiment off the Balearic Islands tagged 3738 individuals of 23 shark and batoid ...
Francesca Ferragut-Perello +7 more
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More information from the mark and recapture of fish at Kosi Bay, South Africa
Koedoe: African Protected Area Conservation and Science, 2002 A considerable amount of work has been carried out on the mark and recapture of fish at Kosi bay (Kyle 1986). This resulted in the publication of data (Kyle & Robertson 1997) suggesting fairly low rates of exploitation by man but warning that further ...
R. Kyle
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A simulation study of acoustic-assisted tracking of whales for mark-recapture surveys. [PDF]
PLoS ONE, 2014 Collecting enough data to obtain reasonable abundance estimates of whales is often difficult, particularly when studying rare species. Passive acoustics can be used to detect whale sounds and are increasingly used to estimate whale abundance. Much of the
David Peel +5 more
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Monitoring crayfish using a mark-recapture method: potentials, recommendations, and limitations
Biodiversity and Conservation, 2008 Crayfish are regarded as useful indicators of environmental quality and freshwater biodiversity. However, reliable methods for monitoring their populations are needed so that this potential can be fully utilised. We report and discuss methodological aspects of the white-clawed crayfish (Austropotamobius pallipes complex) survey conducted in Piedmont ...
P. NOWICKI +4 more
openaire +2 more sources
An integrated model improves inferences about survival in the Mojave desert tortoise
Endangered Species ResearchThe Mojave desert tortoise Gopherus agassizii experienced population declines during recent decades, which have persisted despite its designation as a federally protected species.
SJ Hromada +18 more
doaj +1 more source