منابع مشابه
Preliminary survey of the mayflies (Ephemeroptera) and caddisflies (Trichoptera) of Big Bend Ranch State Park and Big Bend National Park
The mayfly (Insecta: Ephemeroptera) and caddisfly (Insecta: Trichoptera) fauna of Big Bend National Park and Big Bend Ranch State Park are reported based upon numerous records. For mayflies, sixteen species representing four families and twelve genera are reported. By comparison, thirty-five species of caddisflies were collected during this study representing seventeen genera and nine families....
متن کاملHourly concentrations and light scattering cross sections for fine particle sulfate at Big Bend National Park
Fine particle sulfate was measured continuously for 90 consecutive days, from August through October 1999, at Big Bend National Park. Measurements were made with a prototype integrated collection and vaporization cell, whereby particles are humidified and collected by impaction onto a metal strip and analyzed in place by flash-vaporization and pulsed fluorescence detection of the evolved sulfur...
متن کاملSTUDY OF VASCULAR PLANTS OF BAMU NATIONAL PARK (FARS PROVINCE)
In this research, vascular plants of Bamu National Park (48000 ha.) situated in Fars province were studied. Analyses of all collected plants (450 species) showed that on account of climatic conditions, 94% of them were flowering in spring, also hemicryptophytes and therophytes possess abundant growth form with 39.6% and 23.5%, respectively. Phytogeographically, Irano-Turanian elements comprise...
متن کاملFurther Assessment of Environmental Contaminants in Avian Prey of the Peregrine Falcon in Big Bend National Park, Texas
A small resident population of peregrine falcons (Falco peregrinus anatum) in the Big Bend region of Texas has suffered reproductive failures since 1990. To continue our assessment of the effects of environmental contaminants on the peregrine falcon, we collected representative avian prey species during 2001 at Mariscal Canyon, Big Bend National Park. The avian carcasses were analyzed for inorg...
متن کاملTrophic Ecology of the Free-tailed Bats Nyctinomops Femorosaccus and Tadarida Brasiliensis (chiroptera: Molossidae) in Big Bend National Park, Texas
We analyzed fecal pellets from 59 Nyctinomops femorosaccus and 54 Tadarida brasiliensis to assess dietary overlap in an area of sympatry. Lepidoptera, Hemiptera, and Coleoptera were the most abundant orders of insects. Niche-breadth indices were narrow overall and highest in June for both species. Indices of overlap indicated nearly complete overlap in use of resources. There does not appear to...
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ژورنال
عنوان ژورنال: Bulletin of the Torrey Botanical Club
سال: 1952
ISSN: 0040-9618
DOI: 10.2307/2482311