Results 111 to 120 of about 25,265 (258)

Take flight: predation risk induces wing polyphenism and dispersal in the aphid Myzus persicae

Pest Management Science, EarlyView.
Predator risk above a critical density induces winged morphs in Myzus persicae, promoting dispersal and reducing predation compared with wingless aphids. This density‐dependent phenotypic plasticity enhances survival but may compromise biological control by facilitating aphid dispersal.
Jamin Ali, Adil Tonğa, Bashiru Adams, Geoff M Gurr, Rizhao Chen, Qiyun Li   +5 more
wiley   +1 more source

The zero inflated negative binomial – Crack distribution: some properties and parameter estimation [PDF]

Songklanakarin Journal of Science and Technology (SJST), 2015
The zero inflated negative binomial-Crack (ZINB-CR) distribution is a mixture of Bernoulli distribution and negative binomial-Crack (NB-CR) distribution, which is an alternative distribution for the excessive zero counts and overdispersion.
Pornpop Saengthong, Winai Bodhisuwan, Ampai Thongteeraparp   +2 more
doaj  

Sublethal herbicide exposure alters cotton susceptibility to aphid infestation

Pest Management Science, EarlyView.
Sublethal herbicide exposure altered cotton susceptibility to aphids. Aphid severity was highest when applications occurred at early vegetative stages and declined as the crop matured. In glasshouse, herbicide effects were dose‐dependent. Abstract BACKGROUND Herbicides remain vital tools for weed control, yet their effects can extend beyond weeds to ...
Purushottam Gyawali, Ubaldo Torres, David L Kerns, Gregory A Sword, Muthukumar V Bagavathiannan   +4 more
wiley   +1 more source

Laboratory, simulated‐use, and field evaluation of non‐insecticidal consumer products for indoor pest management: a freeze‐spray aerosol, light traps, and an ‘insect repellent’ lamp

Pest Management Science, EarlyView.
Control efficacy of three types of non‐insecticidal consumer products were examined in laboratory, simulated‐use, and field conditions. Freeze spray and ‘repellent lamp’ showed limited efficacy, whereas various results in attraction in light trap were reported.
Min‐Geun Son, Yunho Yang, Seongbin Kim, Jun‐Hyung Tak   +3 more
wiley   +1 more source

An Alternative Estimator for Poisson–Inverse-Gaussian Regression: The Modified Kibria–Lukman Estimator

Algorithms
Poisson regression is used to model count response variables. The method has a strict assumption that the mean and variance of the response variable are equal, while, in practice, the case of overdispersion is common.
Rasha A. Farghali, Adewale F. Lukman, Zakariya Algamal, Murat Genc, Hend Attia   +4 more
doaj   +1 more source

Optimal irradiation parameters for the development of the sterile insect technique in the seedcorn maggot Delia platura (Diptera: Anthomyiidae)

Pest Management Science, EarlyView.
X‐ray irradiation of Delia platura pupae showed that 20 Gy induces high sterility while maintaining male quality and competitiveness, establishing optimal parameters for sterile insect technique implementation in North America. Abstract BACKGROUND The seedcorn maggot, Delia platura Meigen (Diptera: Anthomyiidae), is a sporadic but economically ...
Anne‐Marie Fortier, Allen Bush‐Beaupré, Jade Savage, Jacques Brodeur   +3 more
wiley   +1 more source

Estimating Overdispersion in Sparse Multinomial Data [PDF]

, 2018
The phenomenon of overdispersion arises when the data are more variable than we expect from the fitted model. This issue often arises when fitting a Poisson or a binomial model. When overdispersion is present, ignoring it may lead to misleading conclusions,
Afroz, Farzana
core   +1 more source

Modelling time series of counts with overdispersion

Time series of counts, INGARCH model, ACP model, Overdispersion, Autocorrelation structure,
Christian Weiß
core   +1 more source

Modeling Overdispersion in R

, 2015
The book Overdispersion Models in SAS by Morel and Neerchal (2012) discusses statistical analysis of categorical and count data which exhibit overdispersion, with a focus on computational procedures using SAS.
Raim, Andrew M., Neerchal, Nagaraj K., Morel, Jorge G.   +2 more
core   +1 more source

Mating history shapes Wolbachia‐induced cytoplasmic incompatibility and female fitness in an insect pest

Pest Management Science, EarlyView.
Mating order and remating of females by males with different endosymbiont associations strongly shape Wolbachia‐induced cytoplasmic incompatibility, female fitness and offspring sex ratio. An incompatible first mating was weakly affected if followed by a compatible mating and vice versa, indicating strong first‐male sperm precedence with consequences ...
Amir H. Tourani, Alihan Katlav, James M. Cook, Geraldine Tilden, Markus Riegler   +4 more
wiley   +1 more source