Mourning dove densities on Chihuahuan Desert rangelands
نویسندگان
چکیده
منابع مشابه
Impact of feedbacks on Chihuahuan desert grasslands: Transience and metastability
[1] A simplistic model of grass-shrub dynamics was used to investigate the role of grass demographic processes on grassland-shrubland dynamics when grasses are in competitive advantage over shrubs. The model suggests that a feedback between grass biomass and soil erosion may cause an abrupt transition to a shrubland state. The model explains how a simple change in either grass recruitment or gr...
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We used time series analysis of ten years of monthly census data to assess the responses of both individual species and an entire community of rodents to a fluctuating desert environment. Autocorrelation analysis revealed different patterns of intra-annual fluctuation among the It species: Dipodomys spectabilis and Perognathus Jarus had pronounced annual cycles: D. ordii, D. merriaini, Chaetodi...
متن کاملDiet of Nonnative Hyla cinerea in a Chihuahuan Desert Wetland
—Hyla cinerea recently introduced to a Chihuahuan Desert wetland in Big Bend National Park, Texas consumed a variety of terrestrial arthropods. We investigated its diet to analyze a component of colonizing potential for this species. Of 105 individuals analyzed, we found a total of 194 prey items representing 13 unique categories. The most important prey, determined with a quotient that combine...
متن کاملChromosome numbers in Chihuahuan Desert Cactaceae. III. Trans-Pecos Texas.
Chromosome numbers are reported for 112 collections of Cactaceae, including 102 collections of Opuntia. Reports are presented for 33 species in five genera and a total of 36 taxa. Two specimens were sterile. Emphasis was given to the documentation of intraspecific ploidy-level consistencies and differences, because of the current poor state of knowledge about the populational integrity of chrom...
متن کاملHydraulic redistribution by deep roots of a Chihuahuan Desert phreatophyte.
Downward redistribution of soil water through plant roots has important consequences for water and nutrient balance of arid and semi-arid ecosystems. Nevertheless, information on the seasonal patterns and magnitudes of redistribution is lacking for all but a few plant species. We measured sap flow in the taproot and three main lateral roots of a 10-year-old Juglans major Torr. tree, on an ephem...
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ژورنال
عنوان ژورنال: Rangeland Ecology & Management
سال: 2004
ISSN: 1550-7424,1551-5028
DOI: 10.2111/1551-5028(2004)057[0243:mddocd]2.0.co;2