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Guillaume, Dom - - 2011
Kelly, Gregory - - 2011
Crawford, Priscilla - - 2011
Eckerlin, Ralph - - 2011
Landoll, Diane - - 2011
We report the first observation of depredation on a nest of the eastern meadowlark (Sturnella magna) by a speckled kingsnake (Lampropeltis getula holbrooki). Depredation events probably are opportunistic, but they may have an impact on local populations of eastern meadowlarks.
Morgan, Cynthia - - 2011
Crematogaster sotobosque is a Neotropical ant previously known as far north as Costa Rica. We report on a collection of this species from a mixed-deciduous-conifer forest in the Santa Catalina Mountains, Pima County, Arizona. We also extend the known distribution of this species southward to Bolivia.
Roth-Monzon, Andrea - - 2011
Lampropeltis ruthveni is recorded for the first time from four localities in the Mexican state of Hidalgo. This expands the known range northeastward by 84.6 km (by air) from the nearest locality in the state of Queretaro.
Holcomb, Samuel - - 2011
Larvae of the phorid fly Megaselia scalaris were in eggs in a naturally incubated nest of an alligator snapping turtle (Macrochelys temminckii). It appears that these larvae contributed to failure of this nest. Infestation by phorid larvae has been reported previously for eggs and nests of multiple species of turtles, ...
McAllister, Chris - - 2011
New distributional records are reported for millipeds of the orders Callipodida, Chordeumatida, Julida, Polydesmida, and Spirobolida. Two state records are documented for the julids, Brachyiulus lusitanus (Verhoeff) and B. pusillus (Leach) in Texas. In addition, we report 21 county records for other taxa, including the third record for Aliulus caddoensis ...
Santander, Francisco - - 2011
Diet of Harris' hawks (Parabuteo unicinctus) was analyzed using 94 pellets and 128 remains of prey collected during autumn-winter 2006 and 2007 in Reserva Oasis la Campana, a privately protected coastal area in central Chile. Hawks consumed primarily small mammals (69.6% frequency, 88.4% biomass). Although native rodents were consumed most ...
Braun, Janet - - 2011
We report five new records of mammals for Le Flore County, Oklahoma, and additional records of Sorex longirostris for the state. Records for 14 other species, some not reported from the county or state in decades, provide new information on distributions in southeastern Oklahoma.
Lawrence, Shannon - - 2011
We conducted a survey in March 2007 of two neighborhoods in Tucson, Pima County, Arizona, where coyotes (Canis latrans) were present. The survey was conducted originally in 1992 in the same neighborhoods. We compared responses between years. Coyotes appeared habituated to humans to the point of approaching dogs on leashes; ...
Ramos-Lara, Nicolas - - 2011
We report observations on feeding and nesting behavior, reproductive condition, and activity patterns of the Mexican red-bellied squirrel (Sciurus aureogaster) during 2000-2002 in an oakpine (Quercus-Pinus) forest south of Patzcuaro, Michoacan, Mexico. Squirrels fed heavily on seeds of pines, oaks, and dogwoods (Cornus), and rarely cached food. Squirrels used leaf ...
Rojas-Arechiga, Mariana - - 2011
We determined the effect of three concentrations of gibberellic acid on germination and photoblastic behavior of five species of Opuntioideae from the Mapimi Biosphere Reserve, southern Chihuahuan Desert, Durango, Mexico. For Cylindropuntia imbricata, addition of high concentrations (1,500 ppm) of gibberellic acid gave a 30% germination similar to the control; ...
Saiki, Michael - - 2011
In October 2006, months after shallow experimental ponds in the Salton Sea Basin were filled with water from the Alamo river and Salton Sea, fish were observed in several ponds, although inlets had been screened to exclude fish. During October 2007-November 2009, nine surveys were conducted using baited minnow traps ...
Wilkerson, Robert - - 2011
During the 2006 and 2007 breeding seasons, we conducted a systematic survey for western burrowing owls (Athene cunicularia hypugaea) across the portions of California's southeastern deserts that had never been systematically surveyed for the species. We found few or no western burrowing owls in northern and eastern portions of the ...
Lumbad, Anthony - - 2011
Seasonal variability in intensities of ectoparasites of western fence lizards (Sceloporus occidentalis) was quantified in spring, summer, and autumn 2008. Lizards were suspended over pans of water in the laboratory to enumerate replete western black-legged ticks (Ixodes pacificus) and mites. Intensity of ectoparasites was greatest in spring. On average, mites ...
Sanborn, Allen - - 2011
The Tibicen bifidus species complex is composed of T. b. bifidus (Davis, 1916) and T. b. simplex Davis, 1941. We analyzed biogeographical, morphological, and physiological parameters to determine if these taxa represent two species. There are significant differences in biogeography, as well as selection of host-plant and several morphological characteristics. ...
Montgomery, Chad - - 2011
In Omar Torrijos National Park, Cocle Province, Panama, we visually located Cope's vine snakes Oxybelis brevirostris at night along trails and streams. Of 203 O. brevirostris located, we documented height of perch for 185 individuals during March 2005-March 2007. All sleeping snakes encountered were on vegetation rather than on the ...
Alcock, John - - 2011
The fly Palpada mexicana is one of the many syrphids that employ hilltopping as a mating system. In central Arizona, males of P. mexicana can be found on peaktops in spring and, to a lesser extent, autumn. Year after year, the flies gather to perch or hover near certain prominent ...
Fowler, Norma - - 2011
A significantly greater proportion of brush-cleared plots had the Zapata bladderpod Physaria thamnophila than did uncleared plots. However, density of P. thamnophila, especially density of seedlings, was correlated positively with a canopy-cover index on the four sites studied. These apparently contradictory results may have been due to facilitation of seeds ...
McIntosh, Margrit - - 2011
Nichol's turk's head cactus Echinocactus horizonthalonius var. nicholii (Cactaceae) occurs in a few isolated populations in the Sonoran Desert of south-central Arizona (Pima and Pinal counties) and in one isolated population in Mexico. Populations of this variety are disjunct from the more widespread typical variety (E. h. var. horizonthalonius) that ...
Van Auken, - - 2011
We examined two co-occurring species of Malvaceae in the savanna of central Texas to determine their photosynthetic response to varying levels of light. Abutilon theophrasti had a mean ([+ or -] 1 SD) density of 4 [+ or -] 4 plants/[m.sup.2] in the open-grassland phase of the savanna, and a ...
Smolensky, Nicole - - 2011
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 ...
Halbritter, Heather - - 2011
We radiotracked 23-63 adult female elk (Cervus elaphus) during 2003-2007 to determine whether condition (amount of body fat), survival of adults, or production and survival of juveniles was being impacted by habitat or other influences. Lactating females accrued relatively high levels of body fat (8.9-11.4%). Rates of survival of adult ...
Gilad, Oranit - - 2011
We used non-invasive genetic techniques to investigate the number and distribution of cougars (Puma concolor) inhabiting Guadalupe Mountains National Park, Texas. During 8 years, [greater than or equal to]31 resident and transient cougars were identified genetically and [greater than or equal to]15 individuals used the park in 2002. Based on ...
Sofie Kuppens, Gary Holden, Kathleen Barker, Gary - - 2011
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