Articoli di riviste: "Biogeomorphology"

1

Marrs, R. H., e H. Viles. "Biogeomorphology." Journal of Applied Ecology 26, n. 3 (dicembre 1989): 1107. http://dx.doi.org/10.2307/2403738.

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2

Sherman, Douglas J., e Heather A. Viles. "Biogeomorphology". Geographical Review 80, n. 3 (luglio 1990): 339. http://dx.doi.org/10.2307/215321.

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Gerrard, John, e Heather A. Viles. "Biogeomorphology". Geographical Journal 156, n. 1 (marzo 1990): 87. http://dx.doi.org/10.2307/635452.

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4

Hughes, Francine M. R. "Floodplain biogeomorphology". Progress in Physical Geography: Earth and Environment 21, n. 4 (dicembre 1997): 501–29. http://dx.doi.org/10.1177/030913339702100402.

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Floodplains are unique ecosystems because of their linear form, the sometimes extreme dynamism of their geomorphology and because they process large fluxes of energy and materials from upstream areas. This article focuses on the importance of hydrological inputs to floodplains through 1) their influence on the arrangement of landforms and vegetation communities and 2) the connections between flooding regimes and the regeneration and turnover time of floodplain vegetation. Many researchers have demonstrated close links between the arrangement of vegeta tion communities and sedimentary landform types, elevation, soil characteristics, tolerance to flooding and availability of soil moisture. It is suggested that plants on floodplains are found along a combined gradient of available moisture and oxygen which can be viewed simultaneously as a flooding frequency gradient and a complex soil moisture gradient. Discussion of experi mental work on floodplains demonstrates the importance of these gradients to a range of flood plain species in different environments. The relationships between these environmental gradients and the apparent high level of overlap between planform patterns of landforms and vegetation communities on floodplains are related to lag times in different parts of vegetation communities. Flood regimes greatly influence the availability of areas suitable for vegetation regeneration from year to year and the age structure of floodplain communities over decadal time frames. Biotic factors also influence biogeomorphological relationships on floodplains and range from sediment- trapping by vegetation to the impacts of beaver and grazing animals on floodplain hydrology and vegetation. Restoration of floodplains is high on the agenda in many countries and it is argued that, for sustainable results, restoration of hydrological pathways is essential. Planned flood releases below dams in several African countries have had varied success rates but the develop ment of models for managing flows to achieve different restoration targets is the start of an integrated approach to restoring complex floodplain ecosystems.

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5

Tobias, Michele M. "California foredune plant biogeomorphology". Physical Geography 36, n. 1 (7 ottobre 2014): 19–33. http://dx.doi.org/10.1080/02723646.2014.966224.

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6

Palmer, Michael. "Biogeomorphology. Heather A. Viles". Quarterly Review of Biology 64, n. 4 (dicembre 1989): 482. http://dx.doi.org/10.1086/416475.

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Viles, Heather. "Biogeomorphology: Past, present and future". Geomorphology 366 (ottobre 2020): 106809. http://dx.doi.org/10.1016/j.geomorph.2019.06.022.

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8

Haussmann, N. S. "Biogeomorphology: understanding different research approaches". Earth Surface Processes and Landforms 36, n. 1 (26 ottobre 2010): 136–38. http://dx.doi.org/10.1002/esp.2097.

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9

Coombes, Martin A. "Biogeomorphology: diverse, integrative and useful". Earth Surface Processes and Landforms 41, n. 15 (17 ottobre 2016): 2296–300. http://dx.doi.org/10.1002/esp.4055.

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Goudie, Andrew S. "Nebkhas: An essay in aeolian biogeomorphology". Aeolian Research 54 (febbraio 2022): 100772. http://dx.doi.org/10.1016/j.aeolia.2022.100772.

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11

Naylor, L. A., H. A. Viles e N. E. A. Carter. "Biogeomorphology revisited: looking towards the future". Geomorphology 47, n. 1 (settembre 2002): 3–14. http://dx.doi.org/10.1016/s0169-555x(02)00137-x.

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Vacchi, Matteo, Giovanni De Falco, Simone Simeone, Monica Montefalcone, Carla Morri, Marco Ferrari e Carlo Nike Bianchi. "Biogeomorphology of the MediterraneanPosidonia oceanicaseagrass meadows". Earth Surface Processes and Landforms 42, n. 1 (6 aprile 2016): 42–54. http://dx.doi.org/10.1002/esp.3932.

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13

Phillips, Jonathan D. "Biogeomorphology and contingent ecosystem engineering in karst landscapes". Progress in Physical Geography: Earth and Environment 40, n. 4 (13 gennaio 2016): 503–26. http://dx.doi.org/10.1177/0309133315624641.

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While karst is not biogenic in the same sense as, say, coral reefs or peat bogs, and carbonate dissolution can occur abiotically, formation of karst landscapes would not occur in the absence of the biosphere. Seven levels of biogeomorphic biotic-abiotic interactions are identified, from indirect impacts to landforms as extended phenotypes. Karst is generally near the biogenic end of that spectrum, featuring reciprocal interactions and mutual adjustments between biota and landforms and interrelated geomorphological and ecological processes. Karst biogeomorphology may also involve niche construction. In many cases biogeomorphic ecosystem engineering in karst is contingent, in the sense that the engineer organisms may have no, or different, biogeomorphic impacts in non-karst environments. Several examples of contingent ecosystem engineering in karst are given, including biogeomorphic effects of chinkapin oak. Abiotic geomorphic features exist on Earth, but consideration of landform types lying between the biotic-abiotic extremes would likely yield broadly similar conclusions to those about karst. However, it is also clear that we know very little about niche construction and coevolution in karst biogeomorphology, and whether karst or any specific karst features can be considered an extended (composite) phenotype is still an open question. Thus far, most work on biogeomorphology and ecosystem engineering has focused on what might be called obligate engineers—organisms whose engineering effects are at least inevitable, if not necessary to their survival. However, in some cases contingent ecosystem engineers have substantial geomorphic impacts.

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14

Morris, Thérèse E., Pieter T. Visscher, Micheal J. O'Leary, Peter R. C. S. Fearns e Lindsay B. Collins. "The biogeomorphology of Shark Bay's microbialite coasts". Earth-Science Reviews 205 (giugno 2020): 102921. http://dx.doi.org/10.1016/j.earscirev.2019.102921.

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15

Brown, A. G. "Biogeomorphology and Diversity in Multiple-Channel River Systems". Global Ecology and Biogeography Letters 6, n. 3/4 (maggio 1997): 179. http://dx.doi.org/10.2307/2997731.

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16

Phillips, Jonathan D. "Biogeomorphology and landscape evolution: The problem of scale". Geomorphology 13, n. 1-4 (settembre 1995): 337–47. http://dx.doi.org/10.1016/0169-555x(95)00023-x.

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17

Stine, Melanie B., e David R. Butler. "A content analysis of biogeomorphology within geomorphology textbooks". Geomorphology 125, n. 2 (gennaio 2011): 336–42. http://dx.doi.org/10.1016/j.geomorph.2010.09.003.

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18

Duane Allen, Casey. "Biogeomorphology and biological soil crusts: a symbiotic research relationship". Géomorphologie : relief, processus, environnement 16, n. 4 (10 dicembre 2010): 347–58. http://dx.doi.org/10.4000/geomorphologie.8071.

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19

SHILLITO, ANTHONY P., NEIL S. DAVIES, WILLIAM J. MCMAHON e BEN J. SLATER. "DEEP TIME BIOGEOMORPHOLOGY 2: ANIMALS AS ANCIENT ECOSYSTEM ENGINEERS". PALAIOS 37, n. 12 (29 dicembre 2022): 701–2. http://dx.doi.org/10.2110/palo.2022.053.

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20

Etienne, Samuel. "Introduction to the thematic issue: “Biogeomorphology: as fundamental as fun”". Géomorphologie : relief, processus, environnement 16, n. 4 (10 dicembre 2010): 323–26. http://dx.doi.org/10.4000/geomorphologie.8037.

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DAVIES, NEIL S., WILLIAM J. MCMAHON, ANTHONY P. SHILLITO e BEN J. SLATER. "DEEP TIME BIOGEOMORPHOLOGY: THE CO-EVOLUTION OF LIFE AND SEDIMENTS". PALAIOS 37, n. 6 (28 giugno 2022): 219–23. http://dx.doi.org/10.2110/palo.2022.029.

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22

Kent, M., N. W. Owen, P. Dale, R. M. Newnham e T. M. Giles. "Studies of vegetation burial: a focus for biogeography and biogeomorphology?" Progress in Physical Geography 25, n. 4 (1 dicembre 2001): 455–82. http://dx.doi.org/10.1191/030913301701543145.

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23

Naylor, Larissa A. "The contributions of biogeomorphology to the emerging field of geobiology". Palaeogeography, Palaeoclimatology, Palaeoecology 219, n. 1-2 (aprile 2005): 35–51. http://dx.doi.org/10.1016/j.palaeo.2004.10.013.

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24

Stallins, J. Anthony. "Geomorphology and ecology: Unifying themes for complex systems in biogeomorphology". Geomorphology 77, n. 3-4 (luglio 2006): 207–16. http://dx.doi.org/10.1016/j.geomorph.2006.01.005.

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25

Kent, M., N. W. Owen, P. Dale, R. M. Newnham e T. M. Giles. "Studies of vegetation burial: a focus for biogeography and biogeomorphology?" Progress in Physical Geography: Earth and Environment 25, n. 4 (dicembre 2001): 455–82. http://dx.doi.org/10.1177/030913330102500401.

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This paper examines the literature on research into the effects of burial by deposition of blown sand, volcanic deposits (tephra, lavas and lahars) or fluvial sediment on vegetation and the subsequent capacity of the vegetation for survival and regeneration. Research on this topic involves the understanding and skills of the biogeographer, the ecologist and the geomorpholo-gist and represents a potentially very interesting area for integration between these areas of physical geography. Burial is closely linked to concepts of plant succession and pedogenesis. A general model of burial stress is presented that shows how types of stress are linked to the burial environment and the characteristics of the burial event, in particular the magnitude and frequency. The importance of elasticity of response of species to burial is vital, as demonstrated by the evolution of certain species, such as those of the genus Ammophila in sand dunes that appear to respond positively to the burial process. Research into burial by dust deposition, by volcanic tephra and lavas, by sand in coastal and lake dune environments, in desert environments and by alluvium and ‘run-on’ following hydro-logical events are reviewed in turn. The significance of burial to palaeoenvironmental and palaeoecological research is then demonstrated by reference to machair sand dune stratification in the Outer Hebrides and vegetation damage and burial following proximal volcanic impacts in New Zealand. Finally, methods of experimental research into burial in both the field and in the greenhouse are summarized and the conclusion stresses the need for more holistic approaches to the study of burial that link the biogeographical aspects of plant ecophysiology and both individual species and community ecology to the various geomorphic processes of deposition and sedimentation.

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Pasternack, Gregory B., William B. Hilgartner e Grace S. Brush. "BIOGEOMORPHOLOGY OF AN UPPER CHESAPEAKE BAY RIVER-MOUTH TIDAL FRESHWATER MARSH". Wetlands 20, n. 3 (settembre 2000): 520–37. http://dx.doi.org/10.1672/0277-5212(2000)020<0520:boaucb>2.0.co;2.

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27

Ostling, Johanna L., David R. Butler e Richard W. Dixon. "The Biogeomorphology of Mangroves and Their Role in Natural Hazards Mitigation". Geography Compass 3, n. 5 (24 luglio 2009): 1607–24. http://dx.doi.org/10.1111/j.1749-8198.2009.00265.x.

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28

Zhang, Qiaomin. "On biogeomorphology of Luhuitou fringing reef of Sanya City, Hainan Island, China". Chinese Science Bulletin 46, S1 (gennaio 2001): 97–101. http://dx.doi.org/10.1007/bf03187245.

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D'Alpaos, Andrea, Cristina Da Lio e Marco Marani. "Biogeomorphology of tidal landforms: physical and biological processes shaping the tidal landscape". Ecohydrology 5, n. 5 (12 dicembre 2011): 550–62. http://dx.doi.org/10.1002/eco.279.

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Francis, Robert A., Dov Corenblit e Peter J. Edwards. "Perspectives on biogeomorphology, ecosystem engineering and self-organisation in island-braided fluvial ecosystems". Aquatic Sciences 71, n. 3 (2 giugno 2009): 290–304. http://dx.doi.org/10.1007/s00027-009-9182-6.

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31

Trudgill, Stephen. "Biogeomorphology edited by Heather Viles, Black-wells. price: $45. ISBN 0-631-15405". Earth Surface Processes and Landforms 15, n. 2 (marzo 1990): 192. http://dx.doi.org/10.1002/esp.3290150214.

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32

Cox, Nicholas J. "Book reviews: Viles, H., editor, 1988: Biogeomorphology. Oxford: Basil Blackwell. vii + 365 pp. £45 cloth". Progress in Physical Geography: Earth and Environment 13, n. 4 (dicembre 1989): 620–24. http://dx.doi.org/10.1177/030913338901300411.

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33

Li, Shihan, Joseph A. Mason, Yihong Xu, Chi Xu, Guang Zheng, Jinchang Li, Hezi Yizhaq, Shaoming Pan, Huayu Lu e Zhiwei Xu. "Biogeomorphology of nebkhas in the Mu Us dune field, north-central China: Chronological and morphological results". Geomorphology 394 (dicembre 2021): 107979. http://dx.doi.org/10.1016/j.geomorph.2021.107979.

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Da Lio, Cristina, Andrea D'Alpaos e Marco Marani. "The secret gardener: vegetation and the emergence of biogeomorphic patterns in tidal environments". Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 371, n. 2004 (13 dicembre 2013): 20120367. http://dx.doi.org/10.1098/rsta.2012.0367.

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The presence and continued existence of tidal morphologies, and in particular of salt marshes, is intimately connected with biological activity, especially with the presence of halophytic vegetation. Here, we review recent contributions to tidal biogeomorphology and identify the presence of multiple competing stable states arising from a two-way feedback between biomass productivity and topographic elevation. Hence, through the analysis of previous and new results on spatially extended biogeomorphological systems, we show that multiple stable states constitute a unifying framework explaining emerging patterns in tidal environments from the local to the system scale. Furthermore, in contrast with traditional views we propose that biota in tidal environments is not just passively adapting to morphological features prescribed by sediment transport, but rather it is ‘The Secret Gardener’, fundamentally constructing the tidal landscape. The proposed framework allows to identify the observable signature of the biogeomorphic feedbacks underlying tidal landscapes and to explore the response and resilience of tidal biogeomorphic patterns to variations in the forcings, such as the rate of relative sea-level rise.

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Infantes, Eduardo, Jaco C. Smit, Elena Tamarit e Tjeerd J. Bouma. "Making realistic wave climates in low‐cost wave mesocosms: A new tool for experimental ecology and biogeomorphology". Limnology and Oceanography: Methods 19, n. 5 (25 marzo 2021): 317–30. http://dx.doi.org/10.1002/lom3.10425.

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36

Zahabnazouri, Somayeh, Peter E. Wigand e Ahmad Jabbari. "Biogeomorphology of mega nebkha in the Fahraj Plain, Iran: Sensitive indicators of human activity and climate change". Aeolian Research 49 (febbraio 2021): 100652. http://dx.doi.org/10.1016/j.aeolia.2020.100652.

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Li, Shi-Hua, Zhen-Ming Ge, Pei Xin, Li-Shan Tan, Ya-Lei Li e Li-Na Xie. "Interactions between biotic and abiotic processes determine biogeomorphology in Yangtze Estuary coastal marshes: Observation with a modeling approach". Geomorphology 395 (dicembre 2021): 107970. http://dx.doi.org/10.1016/j.geomorph.2021.107970.

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Pietrasiak, Nicole, Rebecca E. Drenovsky, Louis S. Santiago e Robert C. Graham. "Biogeomorphology of a Mojave Desert landscape — Configurations and feedbacks of abiotic and biotic land surfaces during landform evolution". Geomorphology 206 (febbraio 2014): 23–36. http://dx.doi.org/10.1016/j.geomorph.2013.09.015.

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39

Savrda, Charles E. "Bioerosion of a modern bedrock stream bed by insect larvae (Conecuh River, Alabama): Implications for ichnotaxonomy, continental ichnofacies, and biogeomorphology". Palaeogeography, Palaeoclimatology, Palaeoecology 513 (gennaio 2019): 3–13. http://dx.doi.org/10.1016/j.palaeo.2017.06.030.

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40

Lundberg, J., D. A. McFarlane e C. Brewer-Carias. "An extraordinary example of photokarren in a sandstone cave, Cueva Charles Brewer, Chimantá Plateau, Venezuela: Biogeomorphology on a small scale". Geomorphology 121, n. 3-4 (settembre 2010): 342–57. http://dx.doi.org/10.1016/j.geomorph.2010.05.005.

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41

Damveld, Johan H., Bas W. Borsje, Pieter C. Roos e Suzanne J. M. H. Hulscher. "Biogeomorphology in the marine landscape: Modelling the feedbacks between patches of the polychaete worm Lanice conchilega and tidal sand waves". Earth Surface Processes and Landforms 45, n. 11 (2 luglio 2020): 2572–87. http://dx.doi.org/10.1002/esp.4914.

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42

Liro, Maciej. "Dam reservoir backwater as a field-scale laboratory of human-induced changes in river biogeomorphology: A review focused on gravel-bed rivers". Science of The Total Environment 651 (febbraio 2019): 2899–912. http://dx.doi.org/10.1016/j.scitotenv.2018.10.138.

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Liro, Maciej, e Kazimierz Krzemień. "Wpływ cofki zbiornika zaporowego na koryto rzeki górskiej – perspektywy badań = The impact of dam-reservoir backwater on mountain river channel – research perspectives". Przegląd Geograficzny 92, n. 1 (2020): 55–68. http://dx.doi.org/10.7163/przg.2020.1.4.

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Dam reservoir construction is one of the most important factors shaping river-valley morphology in the Anthropocene. While a large number (>58,000) of these constructions are in operation all over the world, we remain quite ignorant of what happens upstream of them (in so called backwater zone), especially for the case of gravel-bed rivers. Existing studies have shown that adjustments of the gravel-bed river in the backwater zone differ between the initial and long-term adjustments. The initial adjustments (occurring ≈ <20 years following dam construction) are controlled by large floods and in-channel deposition which trigger bi-directional bar↔bank interactions (bank erosion causing bar growth and vice versa) resulting in channel-widening. The long-term adjustments (≈ >20 years following dam construction) are characterized by river sinuosity increa sing and channel planform stabilization resulted from deposition of fine sediment and associated vegetation expansion. The long-term adjustments are controlled by the initial river morphology, which creates accommodation space for the deposition of fine sediment and for the associated expansion of vegetation on channel bars. The multi-thread river in backwater zone is significantly narrowed, its sinuosity increase (phase 1) and the planform is stabilized (phase 2). Whereas, in the case of initially single-thread river only planform stabilization occur (phase 2). This article summarizes recent findings on the backwater effects on gravel-bed channel morphodynamics, suggesting that backwater zones may be treated as hot-spots of human-induced changes in river geomorphology and biogeomorphology.

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Tsikalas, Stephen G., e Clayton J. Whitesides. "Worm geomorphology". Progress in Physical Geography: Earth and Environment 37, n. 2 (aprile 2013): 270–81. http://dx.doi.org/10.1177/0309133313481789.

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Darwin’s analysis of the geomorphology of worms is the first documented account of fauna influencing the landscape and established the foundation upon which many current studies in ecosystem engineering, zoogeomorphology, soil science, and biogeomorphology are more broadly predicated. The focus of this assessment is to analyze the long-lasting and broad application of his 1881 work, The Formation of Vegetable Mould, Through the Action of Worms, with Observations on their Habits. In particular, this assessment identifies and elaborates on underlying lessons for today’s geomorphologists. The underlying lessons presented here are three-fold: (1) be multidisciplinary, (2) assess the trivial, and (3) be impactful. First, we review the context of geomorphology in his essay on worms. Then, we address each of the three underlying lessons. We discuss how geomorphologists have adopted these lessons, and what geomorphology can continue to learn from Darwin (1881). In doing so, we analyze the wide influence Darwin’s Worms has had on the scientific community, with an emphasis on geomorphic implications. Our analysis shows that over 900 publications refer to Darwin (1881). In addition, these publications were derived from a variety of disciplines including, but not limited to, anthropology, biogeography, botany, geology, paleontology, philosophy, psychology, scientific travel writing, taxonomy, and zoology. At first glance, it may appear trivial to assess the amount of earth moved by worms, yet this is how Darwin spent his final years. His efforts were not in vain, but rather found that worms play an essential role in soil health, and his work continues to gain recognition and inspire geomorphologists.

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Tobias, Michele M., e Alex I. Mandel. "Literature Mapper: A QGIS Plugin for Georeferencing Citations in Zotero". Air, Soil and Water Research 14 (gennaio 2021): 117862212110092. http://dx.doi.org/10.1177/11786221211009209.

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Many studies in air, soil, and water research involve observations and sampling of a specific location. Knowing where studies have been previously undertaken can be a valuable addition to future research, including understanding the geographical context of previously published literature and selecting future study sites. Here, we introduce Literature Mapper, a Python QGIS plugin that provides a method for creating a spatial bibliography manager as well as a specification for storing spatial data in a bibliography manager. Literature Mapper uses QGIS’ spatial capabilities to allow users to digitize and add location information to a Zotero library, a free and open-source bibliography manager on basemaps or other geographic data of the user’s choice. Literature Mapper enhances the citations in a user’s online Zotero database with geo-locations by storing spatial coordinates as part of traditional citation entries. Literature Mapper receives data from and sends data to the user’s online database via Zotero’s web API. Using Zotero as the backend data storage, Literature Mapper benefits from all of its features including shared citation Collections, public sharing, and an open web API usable by additional applications, such as web mapping libraries. To evaluate Literature Mapper’s ability to provide insights into the spatial distribution of published literature, we provide a case study using the tool to map the study sites described in academic publications related to the biogeomorphology of California’s coastal strand vegetation, a line of research in which air movement, soil, and water are all driving factors. The results of this exercise are presented in static and web map form. The source code for Literature Mapper is available in the corresponding author’s GitHub repository: https://github.com/MicheleTobias/LiteratureMapper

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Jerin, Tasnuba. "Biogeomorphic effects of woody vegetation on bedrock streams". Progress in Physical Geography: Earth and Environment 43, n. 6 (2 giugno 2019): 777–800. http://dx.doi.org/10.1177/0309133319851027.

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The dynamic interactions between fluvial processes and vegetation vary in different environments and are uncertain in bedrock settings. Bedrock streams are much less studied than alluvial in all aspects, and in many respects act in qualitatively different ways. This research seeks to fill this lacuna by studying bedrock streams from a biogeomorphic perspective. It aims to identify the impacts of woody vegetation that may be common to fluvial systems and rocky hillslopes in general, or that may be unique to bedrock channels. A review of the existing literature on biogeomorphology – mostly fluvial and rocky hillslope environments – was carried out, and field examples of biogeomorphic impacts (BGIs) associated with fluvial systems of various bedrock environments were then examined to complement the review. Results indicate that bedrock streams exhibit both shared and highly concentrated BGIs in relation to alluvial streams and rocky hillslopes. Bedrock streams display a bioprotective geomorphic form – root banks (when the root itself forms the stream bank) – which is distinctive, but not exclusive to this setting. On the other hand, shared biogeomorphic impacts with alluvial streams include sediment and wood trapping, and bar and island development and stabilization (i.e. bioconstruction/modification and protection). Shared impacts with rocky hillslopes also include bioprotection, as well as displacement of bedrock due to root and trunk growth, and bedrock mining caused by tree uprooting (i.e. bioweathering and erosion). Two BGI triangles were developed to graphically display these relationships. Finally, this paper concludes that bedrock streams exhibit some BGIs that also occur in either alluvial channels or on rocky hillslopes. Therefore, no BGIs were identified that are absolutely unique to bedrock fluvial environments.

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47

Coombes, Martin A., Emanuela C. La Marca, Larissa A. Naylor, Leonardo Piccini, Jo De Waele e Francesco Sauro. "The influence of light attenuation on the biogeomorphology of a marine karst cave: A case study of Puerto Princesa Underground River, Palawan, the Philippines". Geomorphology 229 (gennaio 2015): 125–33. http://dx.doi.org/10.1016/j.geomorph.2014.10.007.

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48

Corenblit, Dov, Johannes Steiger e Eric Tabacchi. "Biogeomorphologic succession dynamics in a Mediterranean river system". Ecography 33, n. 6 (26 maggio 2010): 1136–48. http://dx.doi.org/10.1111/j.1600-0587.2010.05894.x.

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49

Aguiar, Francisca C., Maria Rosário Fernandes, Maria João Martins e Maria Teresa Ferreira. "Effects of a Large Irrigation Reservoir on Aquatic and Riparian Plants: A History of Survival and Loss". Water 11, n. 11 (14 novembre 2019): 2379. http://dx.doi.org/10.3390/w11112379.

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Dammed rivers have unnatural stream flows, disrupted sediment dynamics, and rearranged geomorphologic settings. Consequently, fluvial biota experiences disturbed functioning in the novel ecosystems. The case study is the large irrigation reservoir Alqueva in Guadiana River, Southern Iberia. The study area was divided into three zones: upstream and downstream of the dam and reservoir. For each zone, species composition and land use and land cover (LULC) were compared before and after the Alqueva Dam implementation. Data consist of aquatic and riparian flora composition obtained from 46 surveys and the area (%) of 12 classes of LULC obtained in 90 riverine sampling units through the analysis of historical and contemporary imagery. There was an overall decrease of several endemic species and on the riparian shrublands and aquatic stands, although differences in the proportion of functional groups were not significant. Nevertheless, compositional diversity shows a significant decline in the upstream zone while landscape diversity shows an accentuated reduction in the reservoir area and downstream of the dam, which is likely related to the loss of the rocky habitats of the ‘old’ Guadiana River and the homogenization of the riverscape due to the irrigation intensification. The mitigation of these critical changes should be site-specific and should rely on the knowledge of the interactions between surrounding lands, ecological, biogeomorphologic, and hydrological components of the fluvial ecosystems.

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Viles, Heather. "Biogeomorphology". Geological Society, London, Memoirs, 19 aprile 2022, M58–2022–6. http://dx.doi.org/10.1144/m58-2022-6.

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AbstractBiogeomorphological research blossomed during the second half of the twentieth century, partly in response to some big, unanswered questions about the role of vegetation in fluvial geomorphology, but also as technical advances allowed more detailed study of the complex interactions between biota and earth surface processes. Formal recognition of biogeomorphology (also known as ecogeomorphology) as a sub-field of geomorphology came in the late 1980s, building on several foundational pieces of research. Key foci of interest for biogeomorphological research up until the end of the 20th century were quantifying the impact of vegetation on erosion and the geomorphological roles of individual animal species, as well as understanding the human influences on biogeomorphic systems.

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