An Integrative Assessment of the Effects of Tamarisk on Stopover Ecology of a Long-Distance Migrant Along the San Pedro River, Arizona

Genetically‐based behavioural morph affects stopover refuelling performance in white‐throated sparrows Zonotrichia albicollis

“…However, the ratio of WS:TS was still high in ground traps (36 WS:20 TS). Alternatively, TS individuals might choose to refuel in poorer quality habitat, as they do on breeding grounds (Knapton and Falls ), or further inland from the Lake Erie shore to avoid competition with WS individuals as seen in other species (Yong et al , Cerasale and Guglielmo ).…”

Evaluation of NDVI to assess avian abundance and richness along the upper San Pedro River

“…However, willow and mesquite were also found only in small quantities at our sites, with only 40 points being 10% or more covered by willow and zero points having that much mesquite, yet the effects of these trees were still important in multiple models. Tamarisk is generally considered to have low arthropod abundance and a less diverse arthropod community compared to native vegetation (DeLay et al, 1999;DeLoach et al, 2000;McGrath et al, 2009;Yard et al, 2004), and there is still much debate over the role of tamarisk as habitat for birds (Cersale and Guglielmo, 2010;Paxton et al, 2011). Therefore, the effect of tamarisk on birds is less important than are other native plant species as has been shown on the Colorado River by van Riper et al (2008).…”

A Physiological Assessment of Seasonal Differences in Spring and Autumn Migration Stopover at Braddock Bay, Lake Ontario

“…2011. Integration ofinformation about refueling performance and food resources can be used to infer how birds use habitat and food resources at migration stopover sites (Cerasale and Guglielmo 2010, Smith and McWilliams 2010, MacDade et al 2011. Thus, measurement of these metabolites in migrating songbirds can provide valuable information about habitat quality at migration stopover sites.…”