Results 131 to 140 of about 44,584 (264)

“Alien versus predator”: predatory effect of coccinellid Exochomus quadripustulatus on the scale insect Toumeyella parvicornis. An open‐field experimentation on the Pinus pinea of Rome

open access: yesInsect Science, EarlyView.
The release of gravid Exochomus quadripustulatus females proved to be effective in containing Toumeyella parvicornis infestations on stone pine trees, under open‐field condition. The ladybugs caused a lower infestation level compared to the trees that did not receive any ladybugs during the observation season.
Nicolò Di Sora   +4 more
wiley   +1 more source

Efficient hyperparameter estimation in Bayesian inverse problems using sample average approximation. [PDF]

open access: yesPhilos Trans A Math Phys Eng Sci
Chung J   +3 more
europepmc   +1 more source

OccuGAMs: Non‐linear occupancy and abundance modelling with imperfect detection

open access: yesMethods in Ecology and Evolution, EarlyView.
Abstract Hierarchical occupancy and abundance models (HOAMs) have become a leading approach for inferring wildlife population dynamics because they explicitly account for imperfect detection. HOAMs are suitable for sampling approaches that produce detection histories from repeated visits to the same sites, including direct observations (e.g. bird point
Johannes Maria Sassen   +3 more
wiley   +1 more source

Relationships Between European Wildcats and Domestic Cats in an Area of Sympatry: Exploring Key Conservation Questions on Hybridization and Disease Transmission

open access: yesAnimal Conservation, EarlyView.
We have found evidence of behavioural barriers for both hybridization and disease transmission between European wildcats and domestic cats. This includes hierarchical interspecies exclusion enforced by wildcats, as well as sexual selection exerted by wildcat females.
Jose María Gil‐Sánchez   +4 more
wiley   +1 more source

Monetary integration and purchasing power parity between Singapore and Britain during the 19th century

open access: yesAsia‐Pacific Economic History Review, EarlyView.
Abstract This study examines the development of purchasing power parity between Singapore and Britain during the 19th century. Using new monthly data from 1831 to 1872, it finds that real exchange rates became more stable after the late 1850s. This convergence was supported by growing connections in international bullion markets, which reduced exchange
Atsushi Kobayashi
wiley   +1 more source

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