We studied relationships between quality and quantity of habitat and conversion of land to caliche roads and well pads associated with oil and gas development. We asked how these factors affected abundance of dune-dwelling lizards, with emphasis on a habitat specialist, the dunes sagebrush lizard Sceloporus arenicolus. Open depressions in dune complexes are a critical landscape feature for S. a...

espanolEn este articulo se analiza, a partir del descubrimiento de “mantos caliche” o “criaderos salitre” en las pampas mas australes la provincia Tarapaca, el proceso que llevo conformacion un canton salitrero llamado “Lagunas”. Ese territorio, conocera con nombre “Lagunas”, fue cateado mediados siglo XIX, constituyendose decada 1870, alcanzando su plenitud industrial 1890 oficinas salitreras ...

Endpoint impacts related to the transformation of land—including that energy infrastructure—have yet be fully quantified and understood in life cycle assessment (LCA). Concentrated solar power (CSP) which generates electricity by using mirrors concentrate incoming shortwave radiation onto a receiver, may serve as an alternate source reliable baseload coming years. As 2019 (baseline year study),...

Introduction. FIDO is the prototype rover for the Mars 2003 mission, complete with an Athena-like science payload [1]. FIDO will be deployed in April 1999 for a series of tests at Silver Lake, CA [2]. In preparation for these tests, we have examined a suite of rocks collected at the site to anticipate the problems expected in field analyses on available rock surfaces as opposed to surfaces that...

During drilling of Leg 160 in the Eastern Mediterranean (April−May, 1995), Messinian (i.e., uppermost Miocene) facies were identified at a site at the base of the Cyprus slope (Site 968) and at two sites on the Eratosthenes Seamount (Sites 965 and 967). The new results can be compared with the recovery of Messinian evaporites from the Florence Rise west of Cyprus (Deep Sea Drilling Project Site...

An ancient Martian hydrosphere consisting of an alkali-rich ocean would likely produce solid carbonate minerals through the processes of evaporation and/or freezing. We postulate that both (or either) of these kinetically-driven processes would produce carbonate minerals whose stable isotopic compositions are highly fractionated (enriched) with respect to the source carbon. Various scenarios ha...

Recent field work and literature records have documented 99 species of lichens and three lichenicolous fungi new to Nebraska. The genera Acrocordia, Bispora, Canomaculina, Catillaria, Cladina, Leproloma, Lichinella, Megaspora, Muellerella, Placynthiella, Polysporina, Pseudevernia, Stigmidium, Strigula, and Vulpicida also represent first reports for the state. These records are summarized here a...

Introduction: NWA 1068 is a 577g picritic shergottite found in the Moroccan Sahara in 2001[1]. The meteorite resembles several other picritic shergottites, e.g. EETA79001B, DaG476, SaU005 and Dho019, in major-element chemistry and mineralogy, but it differs significantly from these meteorites in REE distribution pattern. It has a slightly LREE-depleted pattern commonly shared by some olivine-fr...

Perchlorate (ClO4 ) has been detected in numerous ground and surface waters, and has recently been added to the drinking water Candidate Contaminant List in the United States. Perchlorate can be removed from drinking water using ion exchange, but this results in the production of highly saline (7–12%) perchlorate-contaminated brines. Perchlorate-degrading microbial enrichments capable of growth...

Fifty black-tailed prairie dogs from three prairie dog towns in eastern New Mexico harbored one nematode (Subulura sp.) and one acanthocephalan (Moniliformis clarki) species. One tick (Ornithodoros turicata) and one mite (Proctolaelaps sp.) species were recovered, whereas three species of fleas (Opisocrostis hirsutus, Pulex simulans, Echidnophaga gallinaced) were present. All represent new dist...