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In the present study, we describe the new species, Psora altotibetica, from nine localities in China (Tibetan area) and Nepal. The study includes analyses of anatomy, secondary ch…

The authors apologize for errors in the description of type specimens in their original article and make corrections.

Fourteen species of lichenized or lichenicolous fungi are reported new to either Norway or Sweden or both countries. Several of these are rare and almost unknown. The reported spe…

Inocybe insignis, an eastern North American species with greenish blue staining basidiomes, is documented for the first time since its original description circa 75 years ago in t…

Five new species from Cortinarius sect. Cortinarius are formally described, four from the Americas (Cortinarius palatinus Harrower, sp. nov., Cortinarius atrotomentosus Harrower, …

Phylogeographic data indicate that DNA differences consistently exist between the North American and European allopatric populations of Gymnopus confluens. Conversely, pairing exp…

Jahnula purpurea J.Fourn., Raja & Shearer, a new species in the Jahnulales (Dothideomycetes) collected from submerged wood in a freshwater river in Martinique Island, Lesser Antil…

The novel anaerobic fungus Buwchfawromyces eastonii gen. nov., sp. nov., belonging to order Neocallimastigales (phylum Neocallimastigomycota) is described. Morphologically similar…

Roesleria subterranea, a distinctive hypogeous fungus, was collected from unidentified deciduous plant roots in red pine forests. The fungus had been documented several times in t…

An unusual fungus producing minute orange stilboid sporocarps was found on a palm leaf mid-rib in a Neotropical forest. Morphological observations could not place this collection …

New data on the diversity and geographical distribution of lichenicolous Tremellales and Filobasidiales in the Nordic countries is presented. One new species, Tremella rhizocarpic…

Two species of Ramaria from the Ozark region of Arkansas, USA, R. admiratia and R. calvodistalis, are proposed as new. They are described morphologically and placed molecularly wi…

Rigorous diagnostics and documentation of fungal species are fundamental to their conservation. During the course of a species-level study of UK waxcap (Hygrophoraceae) diversity,…

Cortinarius bovarius sp. nov., a conifer associated taxon growing on calcareous ground, is described from western North America. Phylogenetic relationships and species limits were…

Recent studies using sequence data from multiple loci and coalescent-based species delimitation have revealed several species-level lineages within the phenotypically circumscribe…

Descriptions are presented for the seven known Bulbothrix (Parmeliaceae, Lichenized Fungi) species with salazinic acid in the medulla and without vegetative propagules. Bulbothrix…

Arctomia borbonica sp. nov. is described as new for science from montane natural and secondary habitats in Reunion, in the Mascarene archipelago (Indian Ocean). It has a sterile,…

The new sorediate species Lecanora kenyana from Mount Kenya and L. orientoafricana from the Rift Valley in Kenya are described. L. kenyana has red-brown apothecia with a constrict…

Candelaria pacifica, Candelariella antennaria, C. boleana, C. granuliformis and C. xanthostigmoides are reported from Switzerland for the first time. Candelariella xanthostigmoide…

This study presents data of eight Bulbothrix (Parmeliaceae, Lichenized Fungi) species containing norstictic or protocetraric acid in the medulla. The current species delimitations…

Hydrological droughts driven by climate change threaten freshwater biodiversity, including relatively immobile bivalve fauna, unable to escape from air-exposed areas. Furthermore,…

Invasive alien species are one of the major drivers of biodiversity loss, with birds amongst the most vulnerable taxa affected by their impacts. However, potential impacts on bird…

After Chelicorophium curvispinum, C. sowinskyi, and C. robustum, recently the fourth Ponto-Caspian filter feeding corophiid (C. maeoticum) has colonized the lower section of the R…

Senecio inaequidens, a fast-spreading perennial herb native to Southern Africa, is increasingly common in disturbed habitats across Europe, including urban areas. This species con…

Aquatic ecosystems are characterised by strong trophic links, which can be profoundly altered by the loss or introduction of species. Invasive species that displace key native spe…

Invasive non-native plants can cause ecological, economic, and health impacts worldwide, yet how these impacts cascade from a primary producer to multiple consumers remains poorly…

Solidago canadensis (L.) is an invasive plant species native to North America, but it is also widespread in Eurasia, Australia and New Zealand. Numerous authors suggest that the l…

Effective management of invasive species requires robust projections of how alternative management strategies influence long-term invasion outcomes, required effort, and associate…

Introduced species encounter novel biotic and abiotic conditions that influence their success in new environments. Their advantages often arise from reduced competition with speci…

Invasions of exotic species in fragile and pristine ecosystems, such as those of Antarctica, is a growing ecological concern. Psychoda albipennis, a cosmopolitan saprophagous fly,…

The success and impact of invasive non-native species depend on how they cope with local abiotic conditions, especially in comparison to co-occurring native taxa. In aquatic syste…

The black rat (Rattus rattus) is one of the most prevalent invasive species globally, having significant impacts across ecosystems as a competitor, predator, and driver of disease…

Biosurveillance is especially important for invasive species that are difficult to control or remove once established. Target analysis, or the strategic evaluation of factors that…

Hydrochory (water dispersal) is a major driver of plant invasions in riparian landscapes but both the diaspore traits that determine flotation and the contribution of water-mediat…

A central aspect of ecology is the understanding of how environmental factors influence species distribution, population structure, and dynamics, ultimately highlighting species’ …

Invasive alien species achieve their success through a set of traits that give them a fitness advantage over other species. Many of them are characterised by a generalist diet wit…

Shellfish mariculture, particularly of oysters, poses a significant risk for the introduction of non-native species into marine ecosystems. This study investigates the diversity o…

The brown marmorated stink bug (BMSB), Halyomorpha halys (Stål, 1855) (Hemiptera: Pentatomidae), is a highly polyphagous pest native to South Korea, North Korea, Japan, Taiwan, an…

The Chinese pond mussel (Sinanodonta woodiana) is a highly invasive freshwater bivalve, recognised for its broad host range and ecological plasticity. Its obligate parasitic larva…

New Caledonia’s unique terrestrial habitats – primarily mountain rainforest and sclerophyll forest – face significant threats from invasive ungulates, particularly Javan deer (Rus…

Invasions by non-indigenous species (NIS) are among the major problems that coastal ecosystems are facing globally and are driven by anthropogenic activities, such as internationa…

The introduction of non-native species poses a critical threat to biodiversity in Mediterranean freshwater ecosystems. This study documents the first record of non-native Squalius…

The early detection of invasive species in aquatic ecosystems is particularly challenging with most records of new species made years after their initial invasion, by which time t…

Exotic plant invasions and epiphytic algae potentially influence the growth of submerged plants. However, the effect of epiphytic algae on the resistance of submerged native plant…

The widespread distribution of invasive species inevitably leads to the emergence of a new category of biotic relationships: interspecific predatory interactions between invasive …

Non-native species have the potential to alter host community structure, which, in turn, may affect parasite transmission, diversity and distribution, particularly when the introd…

Many freshwater ecosystems are currently facing the dual challenges of artificial light at night (ALAN) and nutrient enrichment. How these simultaneously acting environmental fact…

Human activities and environmental changes have significantly increased the introduction of non-native species (NIS) into marine habitats, posing a challenge to biodiversity and e…

The non-native signal crayfish (Pacifastacus leniusculus) can influence elemental cycling in aquatic ecosystems through bioaccumulation and transfer of chemical elements, with pot…

Sea level rise is having major impacts on estuaries due to salinity intrusion. These changes in stress profiles have ripple effects in ecosystems, including altering the invasibil…