Results 31 to 40 of about 17,512,468 (321)
Assessment and novel application of N‐mixture models for aerial surveys of wildlife
Ecosphere, 2021 Aerial surveys are a critical tool for inference of wildlife populations, yet are limited by current available methods to account for imperfect detection without marking animals.
Sonja A. Christensen +2 more
doaj +1 more source
Depth of Edge Influence in a Madagascar Lowland Rainforest and Its Effects on Lemurs’ Abundance
Land, 2022 Edge effects result from interactions between adjacent habitats, which can modify abiotic and biotic conditions and produce various negative effects on biodiversity.
Marco Campera +8 more
doaj +1 more source
Land, 2022 Appropriate field survey methods and robust modeling approaches play an important role in wildlife protection and habitat management because reliable information on wildlife distribution and abundance is important for conservation planning and actions ...
Xinhai Li +4 more
doaj +1 more source
Journal of Marine Science and Engineering, 2021 The dolphins Inia geoffrensis—boto and Sotalia fluviatilis—tucuxi are threatened cetaceans inhabiting river ecosystems in South America; population numbers are still lacking for many areas.
Mariana Paschoalini +10 more
doaj +1 more source
Egyptian Vulture in the Karatau Mountains and Adjacent Territories, Kazakhstan
Пернатые хищники и их охрана, 2022 Egyptian Vulture (Neophron percnopterus) is a globally threatened species. The northernmost limit of its breeding range is located in Kazakhstan and is fragmented into three large enclaves. The Karatau range is one such enclave. It was previously assumed
Igor V. Karyakin +5 more
doaj +1 more source
Journal of Statistical Software, 2019 Estimating the abundance and spatial distribution of animal and plant populations is essential for conservation and management. We introduce the R package Distance that implements distance sampling methods to estimate abundance. We describe how users can
David L. Miller +4 more
doaj +1 more source
Adaptive k-tree sample plot for the estimation of stem density: An empirical approach
Journal of Forest Science, 2018 Available budgets for the inventory of non-commercial woodlands are small. Therefore, there has been increased interest in using distance methods, such as k-tree sampling, which are faster than fixed plot sampling.
Hormoz SOHRABI
doaj +1 more source
Mixed effect models in distance sampling [PDF]
, 2013 Recently, much effort has been expended for improving conventional distance sampling methods, e.g. by replacing the design-based approach with a model-based approach where observed counts are related to environmental covariates (Hedley and Buckland, 2004)
Oedekoven, Cornelia Sabrina
core +2 more sources
Wildlife Biology, 2020 The increasing use of remote motion-sensitive photography recently led to an extension of distance sampling (DS) to accommodate camera trap data. Camera trap distance sampling (CTDS) has been proposed as a promising tool to estimate animal abundance, if ...
L. Corlatti +4 more
semanticscholar +1 more source
Line transect estimates of Irrawaddy dolphin abundance along the eastern Gulf Coast of Thailand.
Frontiers in Marine Science, 2015 Effective conservation of coastal marine mammals is largely dependent on reliable knowledge of their abundance, as well as the ecological and human factors driving their distribution.
Ellen eHines +6 more
doaj +1 more source