Results 131 to 140 of about 23,527,078 (254)
TRUNCATED REGRESSION IN EMPIRICAL ESTIMATION [PDF]
In this paper we illustrate the use of alternative truncated regression estimators for the general linear model. These include variations of maximum likelihood, Bayesian, and maximum entropy estimators in which the error distributions are doubly ...
Mittelhammer, Ronald C. +1 more
core
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose Cerebrovascular reactivity (CVR) provides an important index of vascular health and is conventionally quantified using a hypercapnic gas or breath‐hold challenge in conjunction with blood‐oxygen‐level‐dependent functional magnetic resonance imaging (BOLD‐fMRI).
Abdoljalil Addeh +9 more
wiley +1 more source
Greater future range expansions in alien than native ant species
Oikos, EarlyView.There is growing concern that many species may not be able to track suitable conditions under climate change and suffer range contractions as a result. At the same time, alien species introduced to novel geographic ranges are often assumed to benefit from climate change.
Tongyi Liu +2 more
wiley +1 more source
Oikos, EarlyView.An invasional meltdown can occur when a non‐native species facilitates the spread of another non‐native species in the invaded area, increasing its likelihood of survival or its ecological impact. Plant–pollinator systems pose an exceptional study system to test this concept, which remains poorly known.
Daniel Echeandía +9 more
wiley +1 more source
The impact of COVID‐19 on public perceptions of wild meat in Central Africa
People and Nature, EarlyView.Abstract Wild meat is a significant source of food and income generation in Central Africa. However, there is little knowledge of how the assumed link between COVID‐19 and wild meat consumption has been discussed by the media and received by the public. In this study, we conducted media content analysis of 264 articles published in 2019–2020 related to
Yuhan Li +14 more
wiley +1 more source
Scaled Principal Component Analysis (sPCA), a further extension of PCA, focuses on its dimensional reduction ability and forecasting application in financial markets.
Likuan Xiong (6238016) +5 more
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People and Nature, EarlyView.Abstract The drivers of consumer demand for bushmeat are relatively well studied in tropical forest systems, but much less so in savanna areas. This is important because differing ecological and socio‐economic conditions lead to different factors affecting the relationship between local communities and their natural resources.
Hannah N. K. Sackey +3 more
wiley +1 more source
Biodiversity and bird welfare in evaluation of tourism impact and sustainability in arid environment
People and Nature, EarlyView.Abstract Nature‐based tourism is rapidly expanding in arid regions, raising concerns about its long‐term sustainability and potential impacts on biodiversity. However, empirical evidence evaluating its effects on both species diversity and animal welfare remains limited.
Esmat E. M. Elhassan +7 more
wiley +1 more source
PLANTS, PEOPLE, PLANET, EarlyView.Understanding how cooperative interactions remain stable matters for biodiversity because many plants rely on specialist insects that can also impose reproductive costs. We studied the interaction between Sambucus sieboldiana and seed‐consuming Heterhelus beetles through detailed field observations and pollination experiments.
Suzu Kawashima +3 more
wiley +1 more source
PLANTS, PEOPLE, PLANET, EarlyView.As climate change alters seasonal patterns, temperate tree populations face a growing risk of phenological mismatch, where seed dispersal and germination no longer align with favourable conditions for survival. This study predicted how warming by the end of the century will affect seed dormancy breaking and germination in populations of three UK tree ...
Roberta L. C. Dayrell +8 more
wiley +1 more source