Results 61 to 70 of about 1,308 (195)

A Stochastic Condensation Mechanism for Inducing Underdispersion in Count Models

, 2021
It is quite easy to stochastically distort an original count variable to obtain a new count variable with relatively more variability than in the original variable. Many popular overdispersion models (variance greater than mean) can indeed be obtained by mixtures, compounding or randomlystopped sums.
Chenangnon Frédéric Tovissodé, Romain Glele Kakai   +1 more
openaire   +2 more sources

Scale dependence in remotely sensed biodiversity: Leveraging continental‐scale imaging spectroscopy from the National Ecological Observatory Network

Remote Sensing in Ecology and Conservation, EarlyView.
Imaging spectroscopy enables large‐scale biodiversity assessment, yet spectral diversity metrics are scale dependent. Across 15 NEON ecosystems, we find that spectral richness increases sub‐linearly from 3600 m2 to 4 km2, whereas spectral divergence shows weak or inconsistent scaling with area, underscoring the importance of scale‐aware interpretation ...
Meghan T. Hayden, Matthew W. Rossi, Laura E. Dee, Kyle Kovach, Cibele H. Amaral, Jacob Nesslage, Madeline Slimp, Rachel S. Meyer, E. Natasha Stavros   +8 more
wiley   +1 more source

Agricultural Fungicide Mancozeb in Leaf Litter Enhances Survival and Growth of Aedes aegypti (Diptera: Culicidae)

Environmental Toxicology, EarlyView.
ABSTRACT Mancozeb is one of the most widely used agricultural fungicides, exhibiting strong efficacy against a broad spectrum of phytopathogenic fungi. However, its widespread application comes at the cost of environmental contamination. Here, we show the effects of Inga vera leaf litter contamination with Mancozeb on life‐history traits of Aedes ...
Heloise Restello Remus, Gilberto Dinis Cozzer, João Tauchert, Raquel de Brito, Cássia Alves Lima‐Rezende, Jacir Dal Magro, Natalia Bastiani da Luz, Daniel Albeny‐Simões, Renan de Souza Rezende   +8 more
wiley   +1 more source

When machines join the moral circle: The persona effect of generative AI agents in collaborative reasoning

British Journal of Educational Technology, EarlyView.
Abstract Generative AI is increasingly positioned as a peer in collaborative learning, yet its effects on ethical deliberation remain unclear. We report a between‐subjects experiment with university students (N = 217) who discussed an autonomous‐vehicle dilemma in triads under three conditions: human‐only control, supportive AI teammate or contrarian ...
Yueqiao Jin, Roberto Martinez‐Maldonado, Wanruo Shi, Songjie Huang, Mingmin Zheng, Xinbin Han, Dragan Gasevic, Lixiang Yan   +7 more
wiley   +1 more source

Latent Poisson count models for action count data from technology‐enhanced assessments

British Journal of Mathematical and Statistical Psychology, EarlyView.
Abstract Recent advances in computerized assessments have enabled the use of innovative item formats (e.g., drag‐and‐drop, scenario‐based), necessitating a flexible model that can capture systematic influence of item types on action counts. In this study, we present a refinement scheme that can explicitly model common features of items and allows ...
Gregory Arbet, Hyeon‐Ah Kang
wiley   +1 more source

Dive surveys and eDNA detect contrasting macroalgal community composition in Nova Scotia, Canada

Journal of Phycology, EarlyView.
Abstract Morphological identification of macroalgae can be time‐consuming and species may be difficult to observe, collect, or identify, preventing detailed study on the distribution and ecology of many species. The use of eDNA in species surveillance and biodiversity assessments has gained considerable traction in studying macroalgae, as it provides ...
Cody M. Brooks, Claudio DiBacco, Meghan C. McBride, Kira A. Krumhansl   +3 more
wiley   +1 more source

Testing discharge assimilation strategies to enhance short-range AI-based operational rainfall–runoff forecasts [PDF]

Hydrology and Earth System Sciences
Effective discharge forecasts are essential in operational hydrology. The accuracy of such forecasts, particularly in short lead times, is generally increased through the integration of recent measurements of observed discharge; commonly known as ...
B. E. Saint-Fleur, E. Gaume, F. Surmont, N. Akil, D. Theriez   +4 more
doaj   +1 more source

Verification of ensemble forecasts of Mediterranean high-impact weather events against satellite observations [PDF]

Natural Hazards and Earth System Sciences, 2012
Ensemble forecasts at kilometre scale of two severe storms over the Mediterranean region are verified against satellite observations. In complement to assessing the forecasts against ground-based measurements, brightness temperature (BT) images are ...
J.-P. Chaboureau, O. Nuissier, C. Claud
doaj   +1 more source

Mixed‐vertebrate pollination traits and pollinators of Haageocereus acranthus (Cactaceae) in a lomas desert ecosystem of coastal Peru

Plant Biology, EarlyView.
In a lomas desert ecosystem of coastal Peru, the columnar cactus Haageocereus acranthus shows traits and interactions consistent with a mixed‐vertebrate pollination system (hummingbirds and bats), with no detectable differences between flower colour morphotypes in either traits or interactions.
B. Garcia‐Simpson, B. A. Prado, J. J. Pellón, A. Valiente‐Banuet   +3 more
wiley   +1 more source

Community assembly of the ferns of Florida [PDF]

, 2018
© 2018 The Authors. American Journal of Botany is published by Wiley Periodicals, Inc. on behalf of the Botanical Society of America. Premise of the Study: Many ecological and evolutionary processes shape the assembly of organisms into local communities ...
Burleigh, J. Gordon, Trotta, Lauren, Chambers, Sally M., Endara, Lorena, Sally M. Chambers, Sessa, Emily B., Baiser, Benjamin, Lorena Endara, Li, Daijiang, J. Gordon Burleigh, Benjamin Baiser, Emily B. Sessa, Lauren Trotta, Daijiang Li   +13 more
core   +1 more source