Citizen scientists document long-term streamflow declines in intermittent rivers of the desert southwest, USA

2019 ◽  
Vol 38 (2) ◽  
pp. 244-256 ◽  
Author(s):  
Daniel C. Allen ◽  
Darin A. Kopp ◽  
Katie H. Costigan ◽  
Thibault Datry ◽  
Bernard Hugueny ◽  
...  
Keyword(s):  
Intermittent Rivers ◽  
Desert Southwest ◽  
Southwest Usa

A long-term perspective on woody plant encroachment in the desert southwest, New Mexico, USA

2013 ◽  
Vol 25 (3) ◽  
pp. 829-838 ◽  
Author(s):  
A. Brunelle ◽  
T.A. Minckley ◽  
J. Delgadillo ◽  
S. Blissett
Keyword(s):  
New Mexico ◽  
Woody Plant ◽  
Woody Plant Encroachment ◽  
Desert Southwest

scholarly journals Source identification of coarse particles in the Desert Southwest, USA using Positive Matrix Factorization

2017 ◽  
Vol 8 (5) ◽  
pp. 873-884 ◽  
Author(s):  
Andrea L. Clements ◽  
Matthew P. Fraser ◽  
Nabin Upadhyay ◽  
Pierre Herckes ◽  
Michael Sundblom ◽  
...  
Keyword(s):  
Matrix Factorization ◽  
Source Identification ◽  
Positive Matrix Factorization ◽  
Coarse Particles ◽  
Positive Matrix ◽  
Desert Southwest ◽  
Southwest Usa

scholarly journals Chemical mass balance source apportionment of fine and PM10 in the Desert Southwest, USA

2016 ◽  
Vol 3 (1) ◽  
pp. 115-132 ◽  
Author(s):  
Andrea L. Clements ◽  
◽  
Matthew P. Fraser ◽  
Pierre Herckes ◽  
Paul A. Solomon
Keyword(s):  
Mass Balance ◽  
Source Apportionment ◽  
Chemical Mass Balance ◽  
Desert Southwest ◽  
Southwest Usa

An EU-wide citizen science network to monitor hydrological conditions in intermittent rivers and ephemeral streams

2020 ◽  
Author(s):  
Eric Sauquet ◽  
Ilja van Meerveld ◽  
Cath Sefton ◽  
Josep Fortesa ◽  
Helena Ramos Ribeiro ◽  
...  
Keyword(s):  
Citizen Science ◽  
Current Flow ◽  
Local Scale ◽  
Ephemeral Streams ◽  
Intermittent Streams ◽  
Flow State ◽  
Intermittent Rivers ◽  
Flow Intermittence ◽  
International Initiative

<p>Studying Intermittent Rivers and Ephemeral Streams (IRES) requires regular observations of streamflow. Unfortunately, intermittent streams are poorly monitored, particularly in temperate climates. To fill gaps in knowledge of the dynamics of intermittent streams, a pilot initiative within the SMIRES project (Datry et al., 2017, https://www.smires.eu/) was launched in April 2019. This initiative invited citizens to submit observations for a large number of European intermittent streams.</p><p>The goal was collecting datasets that can be used in robust scientific inquiries:</p><p>-             To identify IRES at the European scale. Everyone was encouraged to report the flow state for any stream in Europe at any time during 2019;</p><p>-             To investigate the dynamics of flow intermittence by repeating field observations along an IRES at least once each month and if possible at multiple locations.</p><p>The CrowdWater app (https://crowdwater.ch/en/crowdwaterapp-en/) was used to collect the observations. Each contributor was asked to take a picture of the stream and to identify the current flow state of the stream as one of six classes, from “dry” to “flowing”. The citizen science network has collected, in eight months, more than 3500 observations in ~500 river reaches across 15 countries.</p><p>In this presentation, we will discuss the benefits and the limitations of this citizen science effort (i.e., how these data complement the information provided by gauging stations, how and why the collected data were used by the main contributors, how participants can be engaged in the long-term etc.). We will compare the success of this international initiative to other regional or local scale initiatives.</p><p>References:</p><p>Datry, T., Singer, G., Sauquet, E., Jorda-Capdevilla, D., Von Schiller, D., Subbington, R., Magand, C., Pařil, P., Miliša, M., Acuña, V., Alves, M., Augeard, B., Brunke, M., Cid, N., Csabai, Z., England, J., Froebrich, J., Koundouri, P., Lamouroux, N., Martí, E., Morais, M., Munné, A., Mutz, M., Pesic, V., Previšić, A., Reynaud, A., Robinson, C., Sadler, J., Skoulikidis, N., Terrier, B., Tockner, K., Vesely, D., Zoppini, A (2017) Science and Management of Intermittent Rivers and Ephemeral Streams (SMIRES). Research Ideas and Outcomes 3: e21774. https://doi.org/10.3897/rio.3.e21774</p>

Turbines and Terrestrial Vertebrates: Variation in Tortoise Survivorship Between a Wind Energy Facility and an Adjacent Undisturbed Wildland Area in the Desert Southwest (USA)

2015 ◽  
Vol 56 (2) ◽  
pp. 332-341 ◽  
Author(s):  
Mickey Agha ◽  
Jeffrey E. Lovich ◽  
Joshua R. Ennen ◽  
Benjamin Augustine ◽  
Terence R. Arundel ◽  
...  
Keyword(s):  
Wind Energy ◽  
Terrestrial Vertebrates ◽  
Energy Facility ◽  
Desert Southwest ◽  
Southwest Usa

Correlation Between Long-Term Pedogenic CaCO3 Formation Rate and Modern Precipitation in Deserts of the American Southwest

1989 ◽  
Vol 32 (3) ◽  
pp. 291-295 ◽  
Author(s):  
Giles M. Marion
Keyword(s):  
Lower Limit ◽  
Calcium Concentration ◽  
Formation Rate ◽  
American Southwest ◽  
Annual Precipitation ◽  
Mean Annual Precipitation ◽  
Soil Profiles ◽  
Desert Soils ◽  
Desert Southwest

AbstractThe rates of CaCO3 formation in desert soils of the American Southwest are highly variable and potentially useful in estimating the age of soil profiles. The objective of this study was to examine the correlation between the long-term rate of CaCO3 formation (LTR) and modern mean annual precipitation (MAP) and temperature (MAT). LTR is not significantly related to temperature but is linearly related to MAP [LTR = 0.0150(MAP − 37), r2 = 0.924]. The slope of the regression is significantly different from 0.0 and is equivalent to a calcium concentration of 6.0 mg liter−1 in rainfall. However, the intercept term, which suggests a lower limit of precipitation for CaCO3 formation of 37 mm, is not significantly different from 0.0. The LTR-MAP relationship may be useful in estimating the age of soil profiles by the CaCO3 method in the desert Southwest.

scholarly journals Nitrogen Management Affects Nitrous Oxide Emissions under Varying Cotton Irrigation Systems in the Desert Southwest, USA

2018 ◽  
Vol 47 (6) ◽  
pp. 1572-1572 ◽  
Author(s):  
Kevin F. Bronson ◽  
Doug J. Hunsaker ◽  
Clinton F. Williams ◽  
Kelly R. Thorp ◽  
Sharette M. Rockholt ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Nitrogen Management ◽  
Nitrous Oxide Emissions ◽  
Irrigation Systems ◽  
Desert Southwest ◽  
Southwest Usa

scholarly journals Constitutive and Plastic Gene Expression Variation Associated with Desiccation Resistance Differences in the Drosophila americana Species Group

Genes ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 146 ◽  
Author(s):  
Jeremy S Davis ◽  
Leonie C Moyle
Keyword(s):  
Gene Expression ◽  
Stress Response ◽  
Major Gene ◽  
Species Group ◽  
Desiccation Stress ◽  
Desiccation Resistance ◽  
Desert Southwest ◽  
Significant Enrichment ◽  
Southwest Usa ◽  
Species Specific

Stress response mechanisms are ubiquitous and important for adaptation to heterogenous environments and could be based on constitutive or plastic responses to environmental stressors. Here we quantify constitutive and plastic gene expression differences under ambient and desiccation stress treatments, in males and females of three species of Drosophila known to differ in desiccation resistance. Drosophila novamexicana survives desiccation trials significantly longer than the two subspecies of Drosophila americana, consistent with its natural species range in the desert southwest USA. We found that desiccation stress reduces global expression differences between species—likely because many general stress response mechanisms are shared among species—but that all species showed plastic expression changes at hundreds of loci during desiccation. Nonetheless, D. novamexicana had the fewest genes with significant plastic expression changes, despite having the highest desiccation resistance. Of the genes that were significantly differentially expressed between species—either within each treatment (>200 loci), constitutively regardless of treatment (36 loci), or with different species-specific plasticity (26 loci)—GO analysis did not find significant enrichment of any major gene pathways or broader functions associated with desiccation stress. Taken together, these data indicate that if gene expression changes contribute to differential desiccation resistance between species, these differences are likely shaped by a relatively small set of influential genes rather than broad genome-wide differentiation in stress response mechanisms. Finally, among the set of genes with the greatest between-species plasticity, we identified an interesting set of immune-response genes with consistent but opposing reaction norms between sexes, whose potential functional role in sex-specific mechanisms of desiccation resistance remains to be determined.

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