Haageocereus tenuis is a prostrate cactus restricted to a small area of 2 km(2) near the city of Lima, Peru. The species is triploid and propagates mainly through stem fragmentation. In addition, propagation via agamospermy is documented and adventitious embryony is also inferred as a mechanism. Although seedling recruitment has not been observed in nature, we have shown that asexually produced...

UNLABELLED PREMISE OF THE STUDY Genetic studies of Cactaceae can at times be impeded by difficult sampling logistics and/or high mucilage content in tissues. Simplifying sampling and DNA isolation through the use of cactus spines has not previously been investigated. • METHODS AND RESULTS Several protocols for extracting DNA from spines were tested and modified to maximize yield, amplifica...

The present study aimed to update the categorization of extinction risk Discocactus bahiensis Britton & Rose and zehntneri Rose, endemic Cactaceae species from Northeastern Brazil. georeferenced occurrence points were obtained online databases speciesLink Global Biodiversity Information Facility (GBIF). Polygons traced using these points, being gridded with 4 km² cells virtually divided in ...

Nectar-feeding bats show morphological, physiological, and behavioral adaptations for feeding on nectar. How they find and localize flowers is still poorly understood. While scent cues alone allow no precise localization of a floral target, the spatial properties of flower echoes are very precise and could play a major role, particularly at close range. The aim of this study is to understand th...