Results 81 to 90 of about 1,910,351 (302)

Tourists’ willingness to pay to view otters along the Wild Coast, South Africa: a potential for increased ecotourism

open access: yesThe Journal for Transdisciplinary Research in Southern Africa, 2005
This article reports on tourists’ willingness to pay to view Cape clawless otters Aonyx capensis along the Eastern Cape Wild Coast, South Africa. We collected data from a survey carried out using a structured, selfadministered questionnaire.
Lihle Dumalisile   +3 more
doaj   +1 more source

Lantana camara invasion along road–river interchanges and roadsides in Soutpansberg, Vhembe Biosphere Reserve in South Africa

open access: yesSouth African Journal of Science, 2020
Roads and rivers act as conduits of alien plant invasion; however, little is known regarding the abundance and invasion extent of Lantana camara, an invasive shrub, along road–river interchanges and roadsides in South Africa.
Sheunesu Ruwanza, Edward S. Mhlongo
doaj   +1 more source

Decoding the dynamic extracellular matrix in cancer—3D models and bioscaffolds rewire the rules of tumor progression

open access: yesFEBS Letters, EarlyView.
Cancer progression is regulated by the dynamic matrix code of the tumor microenvironment, which influences cellular behavior and disease development. Importantly, matrix remodeling in three‐dimensional cancer models more accurately reflects in vivo conditions compared to conventional two‐dimensional systems.
Sylvia Mangani   +3 more
wiley   +1 more source

Biotic indirect effects: a neglected concept in invasion biology

open access: yes, 2006
Indirect effects involve more than two species and are defined as how one species alters the effect that another species has on a third. These complex interactions are often overlooked in studies of interactions between alien and native species, and ...
Wilson, John C.   +2 more
core   +1 more source

Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential

open access: yesFEBS Letters, EarlyView.
Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta   +3 more
wiley   +1 more source

A Method for Conveying Confidence in iNaturalist Observations: A Case Study Using Non‐Native Marine Species

open access: yesEcology and Evolution
Concerns and limitations relating to data quality, reliability and accuracy hamper the use of citizen science initiatives in research and conservation. Valued for their cost‐effective and large data acquisition potential, citizen science platforms such ...
Sarah J. Ackland   +2 more
doaj   +1 more source

Gastropods alien to South Africa cause severe environmental harm in their global alien ranges across habitats

open access: yesEcology and Evolution, 2018
Alien gastropods have caused extensive harm to biodiversity and socioeconomic systems like agriculture and horticulture worldwide. For conservation and management purposes, information on impacts needs to be easily interpretable and comparable, and the ...
David Kesner, Sabrina Kumschick
doaj   +1 more source

An epithelial GPR35 isoform supports tumor‐associated transcriptional and metabolic phenotypes

open access: yesFEBS Letters, EarlyView.
GPR35 generates two functionally distinct isoforms with previously unresolved roles. GPR35‐short mediates immune‐cell chemotaxis, while GPR35‐long is enriched in colorectal cancer epithelium, where it supports increased metabolism, proliferation, and tumor‐associated transcriptional programs.
Jørgen D. Rønneberg   +14 more
wiley   +1 more source

Heterospecific social interactions of the invasive guppy (Poecilia reticulata): a potential trait to enhance invasion success [PDF]

open access: yes, 2015
Electronic version excludes material for which permission has not been granted by the rights holderFrom all the species that arrive to a novel environment, very few manage to form a viable population.
Camacho-Cervantes, Morelia
core   +2 more sources

The effects of microplastics size and type on entrapment by freshwater macrophytes under vertical and lateral deposition

open access: yesJournal of Limnology
Marine and freshwater macrophytes are known to filter off microplastics from the water column; however, the effects of microplastic size and type on their retention by different macrophytes species have yet to be investigated.
Minli Wu   +4 more
doaj   +1 more source

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