tag: Cyanobacteria

Effects of vegetation on bacterial communities, carbon and nitrogen in dryland soil surfaces: implications for shrub encroachment in the southwest Kalahari

Shrub encroachment is occurring in many of the world’s drylands, but its impacts on ecosystem structure and function are still poorly understood. In particular, it remains unclear how shrub encroachment affects dryland soil surfaces, including biological soil crust (biocrust) communities. In this study, soil surfaces (0–1 cm depth) were sampled from …

Compositional homogeneity in the pathobiome of a new, slow-spreading coral disease

Coral reefs face unprecedented declines in diversity and cover, a development largely attributed to climate change-induced bleaching and subsequent disease outbreaks. Coral-associated microbiomes may strongly influence the fitness of their hosts and alter heat tolerance and disease susceptibility of coral colonies. Here, we describe a new coral disease found in …

Microbial community composition of biological soil crusts and subsoil in the Kalahari

The Kalahari of southern Africa is characterised by sparse vegetation interspersed with biological soil crusts which deliver a range of ecosystem services including soil stabilisation and carbon fixation. The crusts vary in morphology from barely aggregated sand grains, to strongly aggregated thick crusts with dark pigmentation. Crust morphology and development …