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1. Comparison of historical and modern river surveys reveal changes to waterhole characteristics in an Australian dryland river

Author:
Pearson, Marita R.; Reid, Michael A.; Miller, Cara; Ryder, Darren
Source:
Geomorphology 2020 v.356 pp. 107089
ISSN:
0169-555X
Subject:
arid lands,   etc   ; landscapes; rivers; sediments; sonar; surveys; uncertainty; weirs; Australia;     Show all 9 Subjects
Abstract:
... Human activities are known to impact the physical template of river channels. These impacts can result from deliberate, direct modifications as well as via indirect processes linked to broadscale landscape change. This study examined changes in the physical template of the Barwon-Darling River, a dryland river in southeastern Australia. Historical longitudinal profiles from the late 1800s were com ...
DOI:
10.1016/j.geomorph.2020.107089

2. Dryland communities find little refuge from grazing due to long-term changes in water availability

Author:
Healy, Al; Tulloch, Ayesha I.T.; Fensham, Roderick J.
Source:
Journal of arid environments 2020 v.176 pp. 104098
ISSN:
0140-1963
Subject:
arid lands,   etc   ; environmental impact; grazing; landscapes; pastoralism; surface water; Queensland;     Show all 7 Subjects
Abstract:
... Surface water availability in drylands has changed with the introduction of artificial water points. Despite known ecological impacts, detailed mapping of this change has not occurred in most drylands. We aimed to quantify the extent and distribution of changes in water availability. We tested whether water availability increased more in pastorally productive areas than less fertile areas, and whe ...
DOI:
10.1016/j.jaridenv.2019.104098

3. Thermally-Assisted Monitoring of Bat Abundance in an Exceptional Cave in Brazil's Caatinga Drylands

Author:
Otálora-Ardila, Aída; Torres, Jaire Marinho; Barbier, Eder; Pimentel, Narjara Tércia; Barbosa Leal, Edson S.; Bernard, Enrico
Source:
Acta chiropterologica 2020 v.21 no.2 pp. 411-423
ISSN:
1733-5329
Subject:
arid lands,   etc   ; Chiroptera; Neotropics; caatinga; caves; monitoring; species richness; Brazil;     Show all 8 Subjects
Abstract:
... Caves are very important roosts for bats. Neotropical countries, like Brazil, harbor both high bat species richness and abundance of underground cavities. The Caatinga drylands in northeastern Brazil are a good example with potentially 100 bat species and a high number of caves. Among those caves, some harbor exceptionally large bat populations, but, even thus, they still remain poorly known and s ...
DOI:
10.3161/15081109ACC2019.21.2.016

4. Tapping height and season affect frankincense yield and wound recovery of Boswellia papyrifera trees

Author:
Cherenet, Elias; Abiyu, Abrham; Getnet, Ambachew; Sisay, Kibruyesfa; Dejene, Tatek
Source:
Journal of arid environments 2020 v.179 pp. 104176
ISSN:
0140-1963
Subject:
arid lands,   etc   ; Boswellia papyrifera; frankincense; harvesting; lowlands; mortality; threatened species; tree and stand measurements; trees; Ethiopia;     Show all 10 Subjects
Abstract:
... Boswellia papyrifera (Del.) Hochst is a threatened tropical dryland tree species. It is the source of frankincense, valued for its industrial, religious and traditional uses. This tree species is reported as under threat due to mortality from wound and inappropriate frankincense harvesting techniques. Two experiments were conducted simultaneously in the lowlands of North Western Gonder Zone, Ethio ...
DOI:
10.1016/j.jaridenv.2020.104176

5. Patch organization and resilience of dryland wetlands

Author:
Sandi, Steven G.; Saco, Patricia M.; Rodriguez, Jose F.; Saintilan, Neil; Wen, Li; Kuczera, George; Riccardi, Gerardo; Willgoose, Garry
Source:
The Science of the total environment 2020 v.726 pp. 138581
ISSN:
0048-9697
Subject:
arid lands,   etc   ; biodiversity; ecosystems; habitats; models; semiarid zones; soil resources; vegetation; wetlands;     Show all 9 Subjects
Abstract:
... Dryland wetlands are ecosystems of high ecological importance as they serve as habitat sanctuaries for aquatic and terrestrial biota in areas with very few resources; therefore, the study of such environments is of major importance for the conservation of biodiversity in arid and semi-arid areas. The vegetation organization in these ecosystems is driven by the water regime as the main driver, but ...
DOI:
10.1016/j.scitotenv.2020.138581

6. Influence of water body area on water quality in the southern Jiangsu Plain, eastern China

Author:
Deng, Xiaojun
Source:
Journal of cleaner production 2020 v.254 pp. 120136
ISSN:
0959-6526
Subject:
arid lands,   etc   ; lakes; land use; pollution control; rivers; surface water; urban areas; water quality; China;     Show all 9 Subjects
Abstract:
... Water quality management remains a challenge due to the complex interactions between multiple influencing factors. Although the influences of land use/cover types on water quality have received extensive attention, few researchers have attempted to elucidate the correlation between water body characteristics and water quality, and the interactions between water bodies and other land use/cover type ...
DOI:
10.1016/j.jclepro.2020.120136

7. Disentangling the concept of “South American Arid Diagonal”

Author:
Abraham, Elena María; Rodríguez, María Daniela; Rubio, María Clara; Guida-Johnson, Bárbara; Gomez, Laura; Rubio, Cecilia
Source:
Journal of arid environments 2020 v.175 pp. 104089
ISSN:
0140-1963
Subject:
arid lands,   etc   ; Internet; bibliometric analysis; expert opinion; qualitative analysis; terminology; South America;     Show all 7 Subjects
Abstract:
... The term South American Arid Diagonal (SAAD) has been, and still is, widely used by the scientific community working in South America's drylands. The present research relies on the assumption that such usage is made in a superficial manner, the SAAD being solely a locational reference which is systematically used by specialists in diverse disciplines to spatially circumscribe their work, but witho ...
DOI:
10.1016/j.jaridenv.2019.104089

8. Northern Hemisphere permafrost extent: Drylands, glaciers and sea floor. Comment to the paper: Obu, J., et al. 2019. Northern Hemisphere permafrost map based on TTOP modeling for 2000–2016 at 1 km2 scale, Earth Science Reviews, 193, 299–316

Author:
Dobiński, Wojciech
Source:
Earth-science reviews 2020 v.203 pp. 103037
ISSN:
0012-8252
Subject:
arid lands,   etc   ; attitudes and opinions; empirical research; freezing; glaciers; ice; models; permafrost; Greenland;     Show all 9 Subjects
Abstract:
... The article published by Obu et al. (2019) estimating the occurrence of permafrost over a Northern Hemisphere. The results published differ from those presented in previous works. This comment highlights the errors introduced in that study, and in a positive note, its cause and proposed solution. The problem remains beyond capabilities of computed models or empirical research. Its solution lies in ...
DOI:
10.1016/j.earscirev.2019.103037

9. Research on the influence of land use change to habitat of cranes in Shengjin Lake wetland

Author:
Fang, Lei; Dong, Bin; Wang, Cheng; Yang, Fei; Cui, Yanglin; Xu, Wenrui; Peng, Liang; Wang, Yuting; Li, Haoran
Source:
Environmental science and pollution research international 2020 v.27 no.7 pp. 7515-7525
ISSN:
0944-1344
Subject:
arid lands,   etc   ; agricultural land; grasslands; habitats; lakes; land use change; marshes; models; remote sensing; winter; woodlands;     Show all 11 Subjects
Abstract:
... Shengjin Lake wetland reserve is an important habitat for the winter cranes of our country, and the change of land use structure in the area have had a vital influence on the winter cranes and their habitat. The TM remote sensing images of 1986–2015 years were selected in this paper, and the land use change model and gray relational analysis model were used to analyze the effect of land use degree ...
DOI:
10.1007/s11356-019-07096-5

10. Using hydrological connectivity to detect transitions and degradation thresholds: Applications to dryland systems

Author:
Saco, Patricia M.; Rodríguez, José F.; Moreno-de las Heras, Mariano; Keesstra, Saskia; Azadi, Samira; Sandi, Steven; Baartman, Jantiene; Rodrigo-Comino, Jesús; Rossi, María Julieta
Source:
Catena 2020 v.186 pp. 104354
ISSN:
0341-8162
Subject:
arid lands,   etc   ; desertification; drainage; ecosystems; humans; landscapes; rangelands; runoff; sediments; surface water; vegetation; wetlands;     Show all 12 Subjects
Abstract:
... In arid and semi-arid ecosystems, shortage of water can trigger changes in landscapes’ structures and function leading to degradation and desertification. Hydrological connectivity is a useful framework for understanding water redistribution and scaling issues associated with runoff and sediment production, since human and/or natural disturbances alter surface water availability and pathways incre ...
DOI:
10.1016/j.catena.2019.104354

11. A look into the past, present and future potential distributions of Talinopsis frutescens, a North American endemic lineage closely related to Cactaceae

Author:
Miguel-Vázquez, Mónica I.; López De Olmos R, Yasser S.; Ocampo, Gilberto
Source:
Journal of Arid Land 2020 v.12 no.1 pp. 104-114
ISSN:
1674-6767
Subject:
arid lands,   etc   ; Anacampserotaceae; Cactaceae; climate; climate change; dry environmental conditions; models; niches; Chihuahuan Desert; North America;     Show all 10 Subjects
Abstract:
... Talinopsis frutescens (Anacampserotaceae, a family that is close related to Cactaceae) is a succulent species endemic to North America. The aim of this study was to explore, using Ecological Niche Modeling (ENM), changes in potential distribution ranges considering different climate scenarios: past conditions during the Last Inter Glacial (LIG) and the Last Glacial Maximum (LGM), the present and p ...
DOI:
10.1007/s40333-019-0019-4

12. Effect of the W-beam central guardrails on wind-blown sand deposition on desert expressways in sandy regions

Author:
Wang, Cui; Li, Shengyu; Lei, Jiaqiang; Li, Zhinong; Chen, Jie
Source:
Journal of Arid Land 2020 v.12 no.1 pp. 154-165
ISSN:
1674-6767
Subject:
arid lands,   etc   ; accidents; air flow; models; roads; sand; spatial distribution; topographic slope; wind speed; wind tunnels;     Show all 10 Subjects
Abstract:
... Many desert expressways are affected by the deposition of the wind-blown sand, which might block the movement of vehicles or cause accidents. W-beam central guardrails, which are used to improve the safety of desert expressways, are thought to influence the deposition of the wind-blown sand, but this has yet not to be studied adequately. To address this issue, we conducted a wind tunnel test to si ...
DOI:
10.1007/s40333-020-0052-3

13. Hydrological Control of Vegetation Greenness Dynamics in Africa: A Multivariate Analysis Using Satellite Observed Soil Moisture, Terrestrial Water Storage and Precipitation

Author:
Ugbaje, Sabastine Ugbemuna; Bishop, Thomas F.A.
Source:
Land 2020 v.9 no.1
ISSN:
2073-445X
Subject:
arid lands,   etc   ; hydrologic cycle; multivariate analysis; rain; satellites; soil water; vegetation; water storage; Southern Africa;     Show all 9 Subjects
Abstract:
... Vegetation activity in many parts of Africa is constrained by dynamics in the hydrologic cycle. Using satellite products, the relative importance of soil moisture, rainfall, and terrestrial water storage (TWS) on vegetation greenness seasonality and anomaly over Africa were assessed for the period between 2003 and 2015. The possible delayed response of vegetation to water availability was consider ...
DOI:
10.3390/land9010015

14. Dietary items in Early to Late Holocene human coprolites from Paisley Caves, Oregon, USA

Author:
Taylor, Anthony; Hutson, Jarod M.; Bryant, Vaughn M.; Jenkins, Dennis L.
Source:
Palynology 2020 v.44 no.1 pp. 12-23
ISSN:
1558-9188
Subject:
arid lands,   etc   ; Holocene epoch; Lagomorpha; Pleistocene epoch; anthropology; carbon radioisotopes; caves; fauna; humans; palynology; pollen; Oregon;     Show all 12 Subjects
Abstract:
... This study describes the results of palynological, macrobotanical, and microfaunal investigations of 19 coprolites from the Paisley Five Mile Point Caves locality (35LK3400) situated in south-central Oregon, USA. This collection represents two discreet chronological phases (ca. 2200 and 9600–10800 radiocarbon years before present (RCYBP)) and suggests the use of a wide array of faunal and floral r ...
DOI:
10.1080/01916122.2018.1530699

15. Analysis of late Quaternary dunefield development in Asia using the accumulation intensity model

Author:
Thomas, David S.G.; Bailey, Richard M.
Source:
Aeolian research 2019 v.39 pp. 33-46
ISSN:
1875-9637
Subject:
arid lands,   etc   ; Holocene epoch; databases; models; Asia;     Show all 5 Subjects
Abstract:
... Asia possesses many extensive desert dune systems within the northern hemisphere subtropical belt and more northerly continental drylands. Collectively these may preserve important sedimentary records of dune system responses to climatic and environmental changes in the Quaternary period. We use the Accumulation Intensity (AI) methodology, which quantifies dune accumulation using luminescence-date ...
DOI:
10.1016/j.aeolia.2019.04.005

16. Transport routes and potential source regions of the Middle Eastern dust over Ahvaz during 2005–2017

Author:
Salmabadi, Hesam; Khalidy, Reza; Saeedi, Mohsen
Source:
Atmospheric research 2020 v.241 pp. 104947
ISSN:
0169-8095
Subject:
arid lands,   etc   ; aerosols; air; cities; coasts; dust; dust storms; marshes; particulates; spring; summer; wind; winter; Iraq; Syria;     Show all 15 Subjects
Abstract:
... Ahvaz is among the most polluted cities in the world in terms of particulate matter (PM) concentration. It is a prevailingly vulnerable city to the dust storms intrusion experiencing nearly 98 dusty days per year. The main aim of this study is to determine the transport pathways of dust particles reaching Ahvaz and investigate the dust sources that potentially contribute to dust loading over this ...
DOI:
10.1016/j.atmosres.2020.104947

17. Direct and indirect effects of carrion subsidies in an arid rangeland: Carrion has positive effects on facultative scavengers and negative effects on a small songbird

Author:
Rees, James D.; Crowther, Mathew S.; Kingsford, Richard T.; Letnic, Mike
Source:
Journal of arid environments 2020 v.179 pp. 104174
ISSN:
0140-1963
Subject:
arid lands,   etc   ; Corvus; Malurus; arid zones; crows; dead animals; herbivores; predation; predators; prey species; rangelands; risk; songbirds; subsidies;     Show all 14 Subjects
Abstract:
... In the absence of top-down regulation by predators, herbivore populations irrupt. In irrupting populations of large herbivores deaths are frequent and availability of carrion from carcasses is high, potentially subsidising facultative scavengers such as crows and ravens. Increases in facultative scavengers could amplify perceived and real predation risk for small prey. We provisioned large-herbivo ...
DOI:
10.1016/j.jaridenv.2020.104174

18. Feral horses are associated with a decline in a rare semi-arid grassland plant

Author:
Lesica, Peter
Source:
Journal of arid environments 2020 v.179 pp. 104180
ISSN:
0140-1963
Subject:
arid lands,   etc   ; Physaria; canopy; feral animals; grasslands; grazing; habitats; horses; nurse plants; rare species; trampling damage; Montana;     Show all 12 Subjects
Abstract:
... Physaria lesicii (Rollins) O'Kane & Al-Shehbaz is a globally rare plant known from only three populations in the Pryor Mountain Wild Horse Range in Montana, USA, an area subjected to grazing by feral horses for at least 100 years. The purpose of this study was to determine effects of trampling by feral horses on this rare plant. I measured density of P. lesicii plants in 33 paired on- and off-trai ...
DOI:
10.1016/j.jaridenv.2020.104180

19. Grain-size variability of point-bar deposits from a fine-grained dryland river terminus, Southern Altiplano, Bolivia

Author:
Li, Jiaguang; Vandenberghe, Jef; Mountney, Nigel P.; Luthi, Stefan M.
Source:
Sedimentary geology 2020 v.403 pp. 105663
ISSN:
0037-0738
Subject:
arid lands,   etc   ; X-ray diffraction; basins; carbonates; clay; floods; models; organic matter; particle size distribution; rivers; silt; Bolivia; Colorado;     Show all 13 Subjects
Abstract:
... Point-bar deposits exhibiting fining-upward grain-size trends are widely documented from both modern rivers and ancient preserved successions. However, in some mud-dominated sedimentary systems this common pattern may not occur; rather, alternative coarsening-upward trends can develop. We investigated point-bar deposits in the mud-dominated river terminus (median value (D₅₀) < 55 μm) of the meande ...
DOI:
10.1016/j.sedgeo.2020.105663

20. Nine months in the Simpson Desert: The anatomy of a letter-winged kite breeding irruption

Author:
Pavey, Chris R.; Nunn, Lisa M.; Nunn, Peter J.; Nano, Catherine E.M.
Source:
Journal of arid environments 2020 v.177 pp. 104138
ISSN:
0140-1963
Subject:
arid lands,   etc   ; Acacia; adults; birds; breeding; juveniles; nesting sites; population size; primary productivity; small mammals; trees; Australia;     Show all 12 Subjects
Abstract:
... Highly mobile animals in the world's drylands can have distinct core and irruptive ranges with the latter being occupied only during population outbreaks driven by resource pulses. Breeding events occur within the irruptive range during these periods of high resource availability. Here we quantify such an event involving the letter-winged kite (Elanus scriptus) in the Simpson Desert, Australia; a ...
DOI:
10.1016/j.jaridenv.2020.104138