Results 21 to 30 of about 171,041 (242)

Browsers or Grazers? New Insights into Feral Burro Diet Using a Non-Invasive Sampling and Plant DNA Metabarcoding Approach

Animals, 2023
Ungulates play a large role in shaping ecosystems and communities by influencing plant composition, structure, and productivity. We investigated the summer diets of feral burros in two ecosystems in which they are found in the United States: a ...
Saeideh Esmaeili, Sarah R. B. King, Kathryn A. Schoenecker   +2 more
doaj   +1 more source

Plant connectivity underlies plant-pollinator-exploiter distributions in Ficus petiolaris and associated pollinating and non-pollinating fig wasps [PDF]

, 2016
Peer ...
Duthie, A. Bradley, Nason, John, Nason, John   +2 more
core   +5 more sources

Public Benefits of Undeveloped Lands on Urban Outskirts: Non-Market Valuation Studies and their Role in Land Use Plans [PDF]

, 2007
Over the past three decades, the economics profession has developed methods for estimating the public benefits of green spaces, providing an opportunity to incorporate such information into land-use planning.
--2004b, A M Freeman, B Roe, C F Kiker, C Fausold, C Fausold, D J Krieger, E G Irwin, E Irwin, E Nelson, Econorthwest, G Acharya, G Mcphearson, H. Spencer Banzhaf, J B Loomis, J Geoghegan, J Kline, J Loomis, J M Bowker, Junjie Wu, Junjie Wu, M Riddel, Matthew J Kotchen, N Bockstael, P Thorsnes, R B Palmquist, R C Ready, R Mitchell, R P Walsh, R Rasker, R S Rosenberger, R S Rosenberger, R S Rosenberger, T Kroeger, U S Forest Service, V K Smith, V Mcconnell, W H Desvousges, W S Breffle, William A Fischel, Y Kaoru   +40 more
core   +1 more source

Phylogeography of the Cactophilic Drosophila and Other Arthropods Associated with Cactus Necroses in the Sonoran Desert

Insects, 2011
Studies on the population genetics, phylogenetic relationships, systematics and evolution of arthropods that inhabit necrotic tissue of cacti in the Sonoran Desert of North America are reviewed. These studies have focused upon several species of insects (
Therese A. Markow, Edward Pfeiler
doaj   +1 more source

The floral hosts and distribution of a supposed creosote bush specialist, Colletes stepheni Timberlake (Hymenoptera: Colletidae) [PDF]

, 2015
Colletes stepheni Timberlake, previously thought to be a narrow oligolege of Larrea (creosote bush) of limited distribution in the Sonoran Desert, is found to be a much more widely distributed psammophile of the Sonoran, Mojave and Great Basin Deserts ...
Griswold, Terry L, Nelson, Rebekah A.
core   +2 more sources

Bodily Inertia and the Weaponization of the Sonoran Desert in US Boundary Enforcement: A GIS Modeling of Migration Routes through Arizona’s Altar Valley

Journal on Migration and Human Security, 2019
Executive Summary This article conducts geographic information system (GIS) modeling of unauthorized migration routes in the Sonoran Desert in southern Arizona and finds an increase in the ruggedness of terrain crossed by pedestrian travelers throughout ...
G. Boyce, S. Chambers, S. Launius
semanticscholar   +1 more source

Three distinctive Preussia ( Sporormiaceae ) from photosynthetic stems of Ephedra trifurca ( Ephedraceae , Gnetophyta ) in southeastern Arizona, USA

Plant and Fungal Systematics, 2022
A survey of the diversity and community composition of culturable endophytic fungi associated with photosynthetic stems of the gnetophyte Ephedra trifurca ( Ephedraceae ) in southeastern Arizona, USA, yielded numerous isolates that are consistent ...
Dustin C. Sandberg, Mariana Del Olmo-Ruiz, Brooke E. Sykes, David Ozro Woods, A. Elizabeth Arnold   +4 more
doaj   +1 more source

Parameter estimation of a land surface scheme using multicriteria methods [PDF]

, 1999
Attempts to create models of surface-atmosphere interactions with greater physical realism have resulted in land surface schemes (LSS) with large numbers of parameters.
Bastidas, LA, Gupta, HV, Shuttleworth, WJ, Sorooshian, S, Yang, ZL   +4 more
core   +3 more sources

REPRODUCTIVE ISOLATION IN SONORAN DESERT DROSOPHILA [PDF]

Evolution, 1983
of enzyme polymorphisms in relation to environmental variability. Amer. Natur. 108:1-19. 1976. A comment on the role of environmental variation in maintaining polymorphisms in natural populations. Evolution 30:188-189. CHAISSON, R. E., L. A. SERUNIAN, AND T. J. M. SCHOPF. 1976.
Therese A, Markow, James C, Fogleman, William B, Heed   +2 more
openaire   +2 more sources

Chionactis occipitalis [PDF]

, 2001
Number of Pages: 12Integrative BiologyGeological ...
Beaman, Kent R., Holm, Peter A., Mahrdt, Clark R., Rosen, Philip C.   +3 more
core   +1 more source