Results 151 to 160 of about 2,631,405 (248)

Estimating the Population Size of Masked Palm Civets Using Hair-Snaring in Southwest China

open access: yesDiversity
Mesocarnivores are major components of carnivore assemblages, and they play important roles in structuring communities and regulating community dynamics.
Di Wang   +8 more
doaj   +1 more source

Understanding biological control function and trophic interaction dynamics of an artificially released predatory bug by DNA metabarcoding

open access: yesInsect Science, EarlyView.
This study investigated the dietary composition of Sycanus bifidus, a generalist predator of the assassin bug that is artificially released into citrus orchards, and uncovered its trophic structure across various pest species using metabarcoding‐based molecular gut content analysis.
Weidong Huang   +9 more
wiley   +1 more source

The predatory behavior of ants: an impressive panoply of morphological adaptations

open access: yesInsect Science, EarlyView.
This review focuses on predation in ants, showing the wide diversity of cases from solitary foraging to group hunting tactics, as well as the evolution of mandible shape frequently adapted to capture specific prey. Although most ants are generalist feeders, finding their sugary substances directly on plants or indirectly via sap‐sucking insects, some ...
Alain Dejean   +6 more
wiley   +1 more source

A Novel Multidisciplinary Approach for Reptile Movement and Behavior Analysis

open access: yesIntegrative Zoology, EarlyView.
We present a novel multidisciplinary approach capable of advancing research on reptiles’ behavior. Our approach uses integrated tools and methods for the digitization, reconstruction, and visualization of reptiles and their behavior. We (i) record movement through tri‐axial accelerometers, video cameras, and motion capture systems; (ii) ground‐truth ...
Savvas Zotos   +9 more
wiley   +1 more source

Estimating spatiotemporal reproductive dynamics of fish populations with passive acoustic monitoring: A state‐space model approach

open access: yesMethods in Ecology and Evolution, EarlyView.
Abstract Passive acoustic monitoring (PAM) has been used to estimate the presence and spatial distribution of target organisms using biological sounds received by microphones. Due to its cost‐effectiveness and non‐invasiveness, PAM is becoming a promising approach for studying the spatiotemporal dynamics of large groups in response to environmental ...
Keisuke Ota   +3 more
wiley   +1 more source

Counting spots: Leopard density along a gradient of conservation rigor

open access: yesConservation Science and Practice
Leopards are widely distributed throughout Africa, Asia and the Middle East, but have suffered substantial range contractions and population declines.
Lucy K. Smyth   +3 more
doaj   +1 more source

Challenges of Monitoring Endangered Bryde's Whales During a Period of Rapid Environmental Change

open access: yesAnimal Conservation, EarlyView.
Estimating population size is challenging for rare and elusive species that occur at low densities and are difficult to detect during sampling. We estimated the abundance of a Nationally critical whale species—Aotearoa New Zealand Bryde's whales—using a custom‐formulated POPAN model which incorporated transience to account for their complex residency ...
A. S. Cranswick   +7 more
wiley   +1 more source

Monitoring African Megafauna in an Anthropogenic Landscape: A 15‐Year Case Study of the Vulnerable West African Giraffe

open access: yesAnimal Conservation, EarlyView.
We used pattern recognition software to correct misidentifications in a 15‐year photographic database of the last, vulnerable West African giraffe population in Niger. After revealing substantial methodological errors that had inflated population estimates by nearly 19%, we corrected individual encounter histories and applied capture‐mark‐recapture ...
Mara Vukelić   +8 more
wiley   +1 more source

Low signs of territorial behavior in the Eurasian otter during low-water conditions in a Mediterranean river

open access: yesScientific Reports
The Eurasian otter Lutra lutra is a territorial semi-aquatic carnivore usually found at low densities in rivers, coastal areas, and wetlands. Its diet is based on prey associated with aquatic environments.
José Jiménez   +3 more
doaj   +1 more source

Survival Remains High in Griffon Vultures 40 Years After Reintroduction

open access: yesAnimal Conservation, EarlyView.
The reintroduction of the Griffon vulture (Gyps fulvus) in French Grands Causses in 1981 is largely regarded as a significant translocation success. 40 years of quality data from intensive monitoring allows us to investigate the survival rates in this long‐lived population on the long term, but also to reflect on the crucial role of adaptive management
Charlotte Lorand   +7 more
wiley   +1 more source

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