Results 141 to 150 of about 30,783 (304)

Correlated mortality risks of siblings in Kenya [PDF]

Random-effect models have been useful in demonstrating how unobserved factors are related to infant or child death clustering. Another potential hypothesis is state dependence whereby the death of an older sibling affects the risk of death of a ...
Fernando Rajulton, Roderic Beaujot, Walter Rasugu Omariba   +2 more
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Population recovery of an endangered macaw enhances long‐distance seed dispersal via stomatochory

Oikos, EarlyView.
Seed dispersal by large, mobile vertebrates plays a key role in shaping plant spatial dynamics and community structure. However, how variation in animal population size influences the magnitude and spatial scale of seed dispersal remains poorly understood.
Giulyana A. Benedicto, Erica C. Pacífico, Mathias M. Pires   +2 more
wiley   +1 more source

The dual role of detritus as resource and habitat: integrating non‐trophic processes to ecosystem dynamics

Oikos, EarlyView.
The diversity of ecological interactions, both trophic and non‐trophic, is central to understanding the assembly of communities. However, we have yet to study non‐trophic processes through their action on ecosystem compartments such as detritus involved in both recycling and habitat provisioning.
Frederic Guichard, Benoît Pichon, Isabelle Gounand   +2 more
wiley   +1 more source

Habitat fragmentation and amount drive within‐species variation in dispersal kernels and limit transferability across landscapes

Oikos, EarlyView.
Dispersal is a key ecological trait that ensures connectivity, gene flow, and range dynamics, yet empirical information about how dispersal distances vary within species remains scarce. Many studies, investigating for instance connectivity conservation, use typical species‐specific dispersal kernels without accounting for the fact that these kernels ...
Jette Wolff, Guillermo Fandos, Cécile H. Albert, Greta Bocedi, Justin M. J. Travis, Damaris Zurell   +5 more
wiley   +1 more source

Life, Death, and the Economy: Mortality Change in Overlapping-Generations Model [PDF]

Demographers have shown that there are regularities in mortality change overtime, and have used these to forecast changes due to population aging. Such models leave out potential economic feedbacks that should be captured by dynamic models such as the ...
Qi Li, Shripad Tuljapurkar
core  

Hunting motivations, behaviour and forest access: Characterising wildlife hunting practices in a multi‐ethnic, forested landscape of Brunei Darussalam, Southeast Asia

People and Nature, EarlyView.
Abstract Unsustainable hunting practices can alter population dynamics, driving biodiversity declines, which leads to ‘empty forests’. Understanding hunting behaviour, including motivations for hunting and relationships with market drivers, and access to hunting grounds are important to develop affirmative policies to stem biodiversity loss.
Natasha L. M. Mannion, Rachel Gaulton, Maria Erica Jamil, Marion Pfeifer, Johan Willem Ferry Slik, Stephen G. Willis, F. Merlin Franco   +6 more
wiley   +1 more source

Human Umbilical Cord Mesenchymal Stem Cell–Derived Exosomes Attenuate Renal Fibrosis by Suppressing Fibroblast Activation via the INHBA/PI3K/AKT Pathway

Pediatric Discovery, EarlyView.
MSC‐Exo derived from human umbilical cord (HucMSC‐Exo) downregulates INHBA expression, consequently modulating the PI3K/AKT signaling cascade. This regulation attenuates renal fibroblast activation and extracellular matrix deposition, thereby exerting a renoprotective effect against fibrosis.
Meiling Chen, Chenxi Jia, Zhuocheng Shi, Bianan Zhu, Yihang Yu, Xing Liu, Feng Liu, Jianwei Chen, Tao Xu, Yuanyuan Zhang, Deying Zhang, Guanghui Wei   +11 more
wiley   +1 more source

Development and evaluation of a machine learning prediction model for short-term mortality in patients with diabetes or hyperglycemia at emergency department admission

Cardiovascular Diabetology
Background Patients with diabetes admitted to emergency care face a higher risk of complications, including prolonged hospital stays, admissions to the intensive care unit and mortality.
Per Wändell, Marcelina Wierzbicka, Karolina Sigurdsson, Anna Olofsson, Caroline Wachtler, Torgny Wessman, Olle Melander, Ulf Ekelund, Anders Björkelund, Axel C. Carlsson, Toralph Ruge   +10 more
doaj   +1 more source

The Usefulness of Stochastic Mortality Modelling [PDF]

Annals of Actuarial Science, 2011
openaire   +2 more sources

StMoMo: An R Package for Stochastic Mortality Modeling

, 2020
In this paper we mirror the framework of generalized (non-)linear models to define the family of generalized age-period-cohort stochastic mortality models which encompasses the vast majority of stochastic mortality projection models proposed to date ...

core