Although laboratory studies of large mammals have revealed valuable information on thermoregulation, such studies cannot predict accurately how animals respond in their natural habitats. Through insights obtained on thermoregulatory behavior, body temperature variability, and selective brain cooling in free-living mammals, we show here how we can better understand the physiological capacity of ...

Ap Applicati tions ons in in Pl Plant t Scien Sciences ces Several Australian arid-zone acacias are threatened by habitat loss, degradation, and fragmentation resulting from agricultural activities and exotic herbivores (Morton et al., 1995), although others, including Acacia ligulata A. Cunn. ex Benth., are thriving. Two long-lived and potentially clonal species facing a variety of potential t...

Abstract The Chilean Atacama Desert is among the oldest deserts of world. Here, Tillandsia landbeckii forming a unique vegetation type known as lomas. This consists in its typical configuration one single vascular plant species only and forms regular linear structures sloped landscape largely depending on fog occurrence dominant source water supply. Without developing root system, there are few...

With little precipitation (<10 cm water equivalent annually as snow), soils of the McMurdo Dry Valleys (MDV) have limited water available to support hydrological or biogeochemical processes. Active layer depths across most of this landscape are <1 m. Saturated sediments are obvious in wetted margins on the shorelines of lakes, extending for up to ~10 m into a zone where typically arid MDV soils...

High spatiotemporal resolution climate data are essential for climate-related impact studies. The Weather Research and Forecasting (WRF) model is widely used to downscale different regions with regional-specific physics configurations. This study aimed identify robust configurations of the WRF model, especially cumulus parameterization schemes, climatic zones Sudan. We focused on wet season (Ju...

PREMISE OF THE STUDY Microsatellite markers were developed for the common arid Australian shrub Acacia ligulata (Fabaceae) and the threatened overstory trees A. melvillei and A. pendula. METHODS AND RESULTS DNA sequence data generated by 454 sequencing were used to identify microsatellite nucleotide repeat motifs. Including previously developed primer sets, we report on the development of 10 ...