Abstract Invasive species pose a threat to the livelihoods of many people living on rangelands western United States. impact ecosystem goods and services areas they invade represent one largest causes habitat degradation. On private ranches, economic analyses often find that conservation practices, such as invasive control, are not economically viable, in contrast what is found at landscape sca...

The exotic annual grass ventenata (Ventenata dubia L.) is raising concern as it rapidly invades multiple ecosystem types within the United States, including sagebrush steppe, ponderosa pine forests, woodlands, and much of Palouse Pacific Northwest Bunchgrass Prairie (PNB). Despite increasing attention, little known about invasion dynamics ventenata, especially its response to disturbances such ...

As a result of studies of material of Ecdyonurus from Spain, nymphs and adults of two new species, E. baeticus sp. n. and E. olgae sp. n., are described. Three species described by Navás must be considered as nomina dubia (E. diversus Navás, 1923, E. excelsus Navás, 1927 and E. fluminum var. speciosus Navás, 1915). Variability in adults of E. venosus is figured and discussed.

The List of Available Names in Zoology (LAN) is an inventory of names with specific scope in time and content, presented and approved in parts, and constituted as a cumulative index of names available for use in zoological nomenclature. It was defined in Article 79 in the fourth edition of the International Code of Zoological Nomenclature. The LAN is likely to gain importance with the developme...

Invasive annual grasses are a growing global concern because they facilitate larger and more frequent fires in historically fuel-limited ecosystems. Forests of the western United States have remained relatively resistant to invasion by their subsequent impacts. However, where forests adjacent invaded areas, increased fire spread across ecotones could alter behavior ecosystem resilience. In Inla...