Facilitation cascades generated by co-occurring foundation species can enhance the abundance and diversity of associated organisms. However, it remains poorly understood how differences among native and invasive species in their ability to exploit these positive interactions contribute to emergent patterns of community structure and biotic acceptance. On intertidal shorelines in New England, we...

In the Portland Metro Area, signal crayfish (Pacifastacus leniusculus</sp...

The present study describes the reproductive biology, population structure and life history traits of the abundant intertidal crab Xantho poressa. Between March 2007 and April 2008, a total of 1918 individuals were collected in Corrales de Rota (SW Spain), a human-modified intertidal habitat characterized by an artificial high complexity. Suitable refuges for crabs (cobbles and boulders) are ve...

This project examines the role of hurricane-strength events likely to have exceeded 119 km/h in wind speed that entered Gulf California from open Pacific Ocean during Late Pleistocene and Holocene times impact granodiorite shoreline on Isla San Diego. Conglomerate dominated by large, ellipsoidal subspherical boulders at islands south end were canvassed six stations. A total 200 individual cobbl...

Here, we investigate the application of rock surface IRSL dating to chronology restrain archaeological structures related upland pastoralism. We applied method cobbles collected from units in an excavation a dry-stone structure Val di Sole Italian Alps. At this site, finds and previous radiocarbon analyses have dated initial human occupation site Early Bronze Age (ca. 2200–1600 BC), possible se...

Percussive technology continues to play an increasingly important role in understanding the evolution of tool use. Comparing the archaeological record with extractive foraging behaviors in nonhuman primates has focused on percussive implements as a key to investigating the origins of lithic technology. Despite this, archaeological approaches towards percussive tools have been obscured by a lack...