Results 71 to 80 of about 10,004 (172)

Trophic Redundancy and the Hidden Dietary Overlap Between Native and Invasive Stream Fishes

open access: yesEcology of Freshwater Fish, Volume 35, Issue 3, July 2026.
ABSTRACT Biological invasions introduce non‐native species into natural ecosystems, often reshaping localcommunities and altering trophic interactions. In freshwater environments, such invasions can intensify resource use and threaten native fish diversity.
Ronielson Gaia   +6 more
wiley   +1 more source

Modeling climate variability and global sugarcane production: Empirical consideration for collective policy action

open access: yesHeliyon
The potential impacts of climate change and sugarcane production is well documented in the literature but majority of the studies have focused on models that look at national level impacts.
Hepziba Headley   +5 more
doaj   +1 more source

Inherited “Ancestors’ Collections” of a Devoted Curator: The Museum of African Heritage in Georgetown, Guyana

open access: yesKarib, 2018
This essay traces the development of the Museum of African Heritage (MAH) in Guyana, which opened in 1994. The vision for the Museum, however, emerged over a decade earlier within contexts of decolonial cultural nationalist movements in the circum ...
Jeremy Jacob Peretz
doaj   +1 more source

Do Coexisting Cryptic Species of Predatory Peacock Bass (Cichliformes: Cichlidae) Partition Their Niche?

open access: yesEcology of Freshwater Fish, Volume 35, Issue 3, July 2026.
ABSTRACT The mechanisms facilitating coexistence of cryptic species in sympatry have long puzzled ecologists. Cryptic species have nearly identical morphology and, therefore, would be presumed to have high niche overlap and potential for interspecific competition and competitive exclusion when resources are limited. Lowland rivers in South America have
Benton L. Fry, Kirk O. Winemiller
wiley   +1 more source

Robust Bernoulli Mixture Models for Credit Portfolio Risk

open access: yesMathematical Finance, Volume 36, Issue 3, Page 528-543, July 2026.
ABSTRACT This paper presents comparison results and establishes risk bounds for credit portfolios within classes of Bernoulli mixture models, assuming conditionally independent defaults that are stochastically increasing in a common risk factor. We provide simple and interpretable conditions on conditional default probabilities that imply a comparison ...
Jonathan Ansari, Eva Lütkebohmert
wiley   +1 more source

Interplay Between River Formation and Historical Climatic Changes Drove Diversification of the Thamnomanes caesius and T. schistogynus (Passeriformes, Thamnophilidae) Species Complex Across Amazonian and Atlantic Forests

open access: yesZoologica Scripta, Volume 55, Issue 4, Page 555-567, July 2026.
ABSTRACT The Amazon and Atlantic forests harbour immense biodiversity shaped by complex evolutionary history with diverse processes leading to species build‐up. We investigated the Cinereous Antshrike species complex (Thamnomanes caesius and T. schistogynus) to disentangle the relative contributions of riverine barriers and historical climatic ...
Henrique Batalha‐Filho   +6 more
wiley   +1 more source

The impact of a disinfection intervention on the microbial indoor air quality at a university library

open access: yesJournal of Air Pollution and Health
Introduction: Indoor environment contributes to human health and productivity. The absence of climatic control systems may lead to microbial contamination. The air quality of public institutions should be monitored.
Bibi Rafeena Ally Charles   +4 more
doaj  

Health care reform in Guyana

open access: yesSocial Medicine, 2014
The paper is an overview of the Guyana health care system, its outcomes, health planning, health reforms, potential health reforms, and the government’s contribution, guiding the development of an efficient and equitable health system for the entire ...
Prem Misir
doaj  

Healthy lives, education and wealth: ecological relationships in social resilience

open access: yesRevista Panamericana de Salud Pública, 2022
Douglas Slater   +2 more
doaj   +1 more source

Teoría de la estructuración, una base conceptual para el estigma del VIH/SIDA

open access: yesSocial Medicine, 2014
La continua escasez de intervenciones efectivas para reducir el estigma del VIH/SIDA es alarmante, dado que desde hace tiempo se ha reconocido como una barrera significativa para la prevención, tratamiento, atención y apoyo del VIH.
Prem Misir
doaj  

Home - About - Disclaimer - Privacy