Results 151 to 160 of about 579,088 (287)

Microplastic Dynamics in Sediment Layers of Two Ramsar‐Designated Wetlands

Water and Environment Journal, EarlyView.
ABSTRACT Little is known about the vertical and spatial dynamics of microplastics in relation to hydrology and land use, particularly in African context. This study aimed to assess the abundance, type, colour and vertical distribution of microplastics in sediment from two Ramsar‐designated wetlands, the Makuleke and Nylsvley. Sediment core samples were
Nelisiwe Ngomane, Linton F. Munyai, Ross N. Cuthbert, Pule Mpopetsi, Farai Dondofema, Rabelani Mudzielwana, Philippa Huchzermeyer, Tatenda Dalu   +7 more
wiley   +1 more source

The emergence of alternative ecosystem states in African savannas

In Africa’s diverse ecosystems, the theory of alternative ecosystem states (AES) holds particular significance, especially within its savannas. However, evidence remains unconvincing due to stringent testing criteria. Despite robust theoretical models demonstrating AES, a notable gap persists in empirical evidence.
openaire   +3 more sources

Global beef production: Trends, challenges, and opportunities for sustainable development

Agricultural &Environmental Letters, Volume 11, Issue 2, December 2026.
Abstract Sustainable livestock systems require managing trade‐offs and synergies across productive, socioeconomic, and environmental dimensions to meet rising global beef demand. We present a biophysical framework to analyze how management‐driven energy allocation is manifested through herd size and total and per‐head beef productivity.
Nicolas Caram, Lynn E. Sollenberger, Marcelo O. Wallau, Adegbola Adesogan, Walter E. Baethgen   +4 more
wiley   +1 more source

Simulating Agroecology Policy Options for the Resilience of Smallholder Food Security to Climate Shocks

Climate Resilience and Sustainability, Volume 5, Issue 2, December 2026.
Climate shocks and the agroecology–resilience nexus of smallholders. Summary of key findings: Agroecology increases smallholder resilience capacity by 8.7% in the short term under a decreased rainfall scenario, a projected 11% decline in precipitation reduces resilience by 5.6% and 14.2% in the short and long terms, respectively, and a policy‐induced ...
Gilbert Dagunga, Michael Ayamga, Wolfram Laube, Isaac Gershon Kodwo Ansah, Joseph A. Awuni, Bekele Hundie Kotu, Francis Muthoni, Gideon Danso‐Abbeam, Abiodun A. Ogundeji   +8 more
wiley   +1 more source

Modelling Climate‐Resilient Habitats for Conservation and Restoration of Isoberlinia doka Craib and Stapf and Isoberlinia tomentosa (Harms) Craib and Stapf in Benin

Climate Resilience and Sustainability, Volume 5, Issue 2, December 2026.
Despite having similar climatic niches, woody plant species can exhibit contrasting responses to climate change. Using MaxEnt and spatial prioritization, we evaluated Isoberlinia doka and I. tomentosa under future climate scenarios (2041–2060). Despite high niche overlap (D = 0.635; I = 0.788), I. doka experienced severe habitat contraction, whereas I.
Sessi Gilles Christian Adjahossou, Jacques Idohou Kadjogbé Ayena, Akoeugnigan Idelphonse Sode, Rodrigue Idohou, Abel Biaou Olaye, Thierry Dèhouégnon Houehanou, Gérard Nounagnon Gouwakinnou, Sèmanoudé Scholastique Mireille Toyi, Marcel Romuald Benjamin Houinato   +8 more
wiley   +1 more source

The origin and development of the Miocene northwest African savanna. [PDF]

Proc Natl Acad Sci U S A
Schartman AK, Polissar PJ, Strömberg CAE.   +2 more
europepmc   +1 more source

Freshwater Biodiversity Research in Brazil: Trends from a Systematic Review and Topic Modeling

International Review of Hydrobiology, Volume 111, Issue 2, December 2026.
ABSTRACT Brazil is a megadiverse country that hosts six major biomes and a vast freshwater network. Despite this richness, research on freshwater biodiversity has been heterogeneous across regions, communities, and time, leaving significant knowledge gaps.
Paula Caroline dos Reis Oliveira, Betina Kozlowsky‐Suzuki, Cleber Cunha Figueredo, Adriana Oliveira Medeiros, Doriedson Ferreira Gomes, Christina W. Castelo Branco, Priscilla Carvalho, Renan de Souza Rezende, Tássia Malacarne, Vivian de Mello de Cionek, Iola Gonçalves Boëchat, Paulo Henrique Costa Corgosinho, Fabrício Barreto Teresa, Rodrigo Assis de Carvalho, Larissa Corteletti da Costa, Lucia Ribeiro Rodrigues, Gustavo Stolzenberg Colares, Louise Cristina Gomes, Fabiana Schneck, Renato Tavares Martins, Thaisa Sala Michelan, Matheus Maximilian Ratz Scoarize, Rosilene Luciana Delariva, Evanilde Benedito, Björn Gücker   +24 more
wiley   +1 more source

Topography is a Major Determinant of Forest-Savanna Distributions in Mosaic Landscapes in Central Africa. [PDF]

Ecosystems
Zwaan A, Staal A, Te Beest M, Rietkerk M.   +3 more
europepmc   +1 more source

Determinants of adoption and intensity of use of balanced nutrient management systems technologies in the northern Guinea savanna of Nigeria [PDF]

As part of a major effort to address soil fertility decline in West Africa, a project on Balanced Nutrient Management Systems (BNMS) has since 2000 been implemented in the northern Guinea savanna (NGS) of Nigeria.
Olanrewaju, Adetunji S., Akinola, Adebayo A., Arega, D.A., Nwoke, C., Nzigaheba, G., Sanogo, Diakalia, Diels, J., Adeyemo, Remi   +7 more
core  

Wildfire in the Surrounding Landscape Alters Limnological Conditions and Plankton Communities in a Tropical Reservoir

International Review of Hydrobiology, Volume 111, Issue 2, December 2026.
ABSTRACT Wildfires are becoming increasingly frequent and severe as a consequence of climate change. Their impacts on terrestrial ecosystems and on the atmosphere include the release of gases and ash, as well as enhanced soil susceptibility to erosion and the downstream transport of materials into aquatic systems.
Daniel Guido Giongo, Edna Viviana Calpa‐Anaguano, Larissa Broggio Raymundo, Eloisa Hummer, Israel Cassiano‐Oliveira, Karime de Araujo‐Paina, Gilmar Perbiche‐Neves, Hugo Sarmento   +7 more
wiley   +1 more source