Articles | Volume 24, issue 1
https://doi.org/10.5194/we-24-11-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/we-24-11-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Disturbance can slow down litter decomposition, depending on severity of disturbance and season: an example from Mount Kilimanjaro
Juliane Röder
CORRESPONDING AUTHOR
Animal Ecology, Department of Ecology, Faculty of Biology, Philipps-Universität Marburg, Karl-von-Frisch-Straße 8, 35032 Marburg, Germany
Tim Appelhans
Environmental Informatics, Faculty of Geography, Philipps-Universität Marburg, Deutschhausstraße 12, 35032 Marburg, Germany
now at: Addium GmbH, Flaschenhofstraße 3, 90402 Nuremberg, Germany
Marcell K. Peters
Department of Animal Ecology and Tropical Biology, Biocenter, University of Würzburg, Am Hubland, 97974 Würzburg, Germany
Thomas Nauss
Environmental Informatics, Faculty of Geography, Philipps-Universität Marburg, Deutschhausstraße 12, 35032 Marburg, Germany
Roland Brandl
Animal Ecology, Department of Ecology, Faculty of Biology, Philipps-Universität Marburg, Karl-von-Frisch-Straße 8, 35032 Marburg, Germany
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Mohammed Ahmed Muhammed, Binyam Tesfaw Hailu, Georg Miehe, Luise Wraase, Thomas Nauss, and Dirk Zeuss
Earth Syst. Sci. Data, 15, 5535–5552, https://doi.org/10.5194/essd-15-5535-2023, https://doi.org/10.5194/essd-15-5535-2023, 2023
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We processed the only available and oldest historical aerial photographs for the Bale Mountains, Ethiopia. We used structure-from-motion multi-view stereo photogrammetry to generate the first high-resolution DEMs and orthomosaics for 1967 and 1984 at larger spatial extents (5730 km2) and at high spatial resolutions (0.84 m and 0.98 m, respectively). Our datasets will help the scientific community address questions related to the Bale Mountains and afro-alpine ecosystems.
Paulina Grigusova, Annegret Larsen, Roland Brandl, Camilo del Río, Nina Farwig, Diana Kraus, Leandro Paulino, Patricio Pliscoff, and Jörg Bendix
Biogeosciences, 20, 3367–3394, https://doi.org/10.5194/bg-20-3367-2023, https://doi.org/10.5194/bg-20-3367-2023, 2023
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In our study, we included bioturbation into a soil erosion model and ran the model for several years under two conditions: with and without bioturbation. We validated the model using several sediment fences in the field. We estimated the modeled sediment redistribution and surface runoff and the impact of bioturbation on these along a climate gradient. Lastly, we identified environmental parameters determining the positive or negative impact of bioturbation on sediment redistribution.
Diana Kraus, Roland Brandl, Jörg Bendix, Paulina Grigusova, Sabrina Köhler, Annegret Larsen, Patricio Pliscoff, Kirstin Übernickel, and Nina Farwig
EGUsphere, https://doi.org/10.5194/egusphere-2022-1427, https://doi.org/10.5194/egusphere-2022-1427, 2023
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We investigate the effect of bioturbators on near-surface soil by measuring the physical properties clay, silt and sand and the chemical macronutrients C, N and P for soil samples taken from mounds created via bioturbation and soil samples from surrounding soil as controls in three different climatic regions (arid, semi-arid and Mediterranean) in coastal Chile. Our findings show that already minor input of especially C and N by bioturbators in arid climates can impact ecosystem functioning.
Paulina Grigusova, Annegret Larsen, Sebastian Achilles, Roland Brandl, Camilo del Río, Nina Farwig, Diana Kraus, Leandro Paulino, Patricio Pliscoff, Kirstin Übernickel, and Jörg Bendix
Earth Surf. Dynam., 10, 1273–1301, https://doi.org/10.5194/esurf-10-1273-2022, https://doi.org/10.5194/esurf-10-1273-2022, 2022
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In our study, we developed, tested, and applied a cost-effective time-of-flight camera to autonomously monitor rainfall-driven and animal-driven sediment redistribution in areas affected by burrowing animals with high temporal (four times a day) and spatial (6 mm) resolution. We estimated the sediment redistribution rates on a burrow scale and then upscaled the redistribution rates to entire hillslopes. Our findings can be implemented into long-term soil erosion models.
Alexander R. Groos, Janik Niederhauser, Luise Wraase, Falk Hänsel, Thomas Nauss, Naki Akçar, and Heinz Veit
Earth Surf. Dynam., 9, 145–166, https://doi.org/10.5194/esurf-9-145-2021, https://doi.org/10.5194/esurf-9-145-2021, 2021
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Large sorted stone stripes have been discovered on the 4000 m high central Sanetti Plateau of the tropical Bale Mountains in Ethiopia. The stripes are a mystery as similar landforms have so far only been reported in the temperate zone and polar regions. Our investigations suggest that the stripes formed in the vicinity of a former ice cap on the plateau during a much colder climatic period. The distinct pattern is the result of a process related to cyclic freezing and thawing of the ground.
Daniel Acquah-Lamptey and Roland Brandl
Web Ecol., 18, 81–89, https://doi.org/10.5194/we-18-81-2018, https://doi.org/10.5194/we-18-81-2018, 2018
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In the absence of mosquitoes, diseases such as Malaria and Yellow fever will not exist. Although mosquito larvae have been identified to be a non-selective food to dragonfly larvae, it is unclear if the two naturally co-exist, hence reported as a non-viable strategy for controlling mosquito populations. However, a simple experiment in tropical Africa has shown a significant reduction in mosquitoes following colonization of mosquito larvae habitats by the dragonfly, Bradinopyga strachani.
Jutta Stadler, Stefan Klotz, Roland Brandl, and Sonja Knapp
Web Ecol., 17, 37–46, https://doi.org/10.5194/we-17-37-2017, https://doi.org/10.5194/we-17-37-2017, 2017
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During early succession plant communities show a decrease in the initial species richness and a change in the phylogenetic structure from random or clustered to overdispersion. We tested this general model in two regional distinct sites. In one region we found the expected trajectory of species richness while phylogenetic structure did not follow the expected trend. In the other region species richness did not follow the expected trajectory and phylogenetic structure remained clustered.
Martin Brändle, Jan Sauer, Lars Opgenoorth, and Roland Brandl
Web Ecol., 17, 29–35, https://doi.org/10.5194/we-17-29-2017, https://doi.org/10.5194/we-17-29-2017, 2017
G. H. Kagezi, M. Kaib, P. Nyeko, C. Bakuneeta, M. Schädler, J. Stadler, and R. Brandl
Web Ecol., 16, 51–58, https://doi.org/10.5194/we-16-51-2016, https://doi.org/10.5194/we-16-51-2016, 2016
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Tropical forests are faced with a loss of forest cover with effects on ecosystem processes. We quantified decomposition within forest fragments and sites affected by increasing levels of agricultural land-use intensity. Mass loss increased with the area of forest fragments and decreased with land-use intensification. Fragmentation has negative effects on litter decomposition. However, the magnitude of this negative effect was not as large as expected.
H. Ruhnke, D. Matthies, and R. Brandl
Web Ecol., 13, 79–84, https://doi.org/10.5194/we-13-79-2013, https://doi.org/10.5194/we-13-79-2013, 2013
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Ecosystem Ecology
Towards spatial predictions of disease transmission risk: classical scrapie spill-over from domestic small ruminants to wild cervids
Little evidence for land-use filters on intraspecific trait variation in three arthropod groups
The BIODESERT survey: assessing the impacts of grazing on the structure and functioning of global drylands
Co-varying effects of vegetation structure and terrain attributes are responsible for soil respiration spatial patterns in a sandy forest–steppe transition zone
Morphometric traits of shells determine external attack and internal utilization marks in the Roman snail in eastern Germany
Unassisted establishment of biological soil crusts on dryland road slopes
Effects of agricultural practices on soil and microbial biomass carbon, nitrogen and phosphorus content: a preliminary case study
The rise of ecosystem ecology and its applications to environmental challenges
The effect of mixtures on colonisation of leaf litter decomposing in a stream and at its riparian zone
The "four-color issue" in ecology for considering ecosystem boundaries
The ecosystem: research and practice in North America
Millipede and centipede (Myriapoda: Diplopoda, Chilopoda) assemblages in secondary succession: variance and abundance in Western German beech and coniferous forests as compared to fallow ground
Nuno Mouta, Leonor Orge, Joana Vicente, João Alexandre Cabral, José Aranha, João Carvalho, Rita Tinoco Torres, Jorge Pereira, Renata Carvalho, Maria Anjos Pires, and Madalena Vieira-Pinto
Web Ecol., 24, 47–57, https://doi.org/10.5194/we-24-47-2024, https://doi.org/10.5194/we-24-47-2024, 2024
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This study investigates classical scrapie (CS) and the risk of interspecies prion transmission by using presence data from wild cervids and infected small ruminant flocks. Employing remote sensing technologies, it derives vegetative and biophysical satellite indices to represent habitat features. A species distribution model integrates these data to identify suitable areas for CS and its hosts. The resultant consensus map and overlapping suitable areas create a detailed infection risk matrix.
Katja Wehner, Matthias Brandt, Andrea Hilpert, Nadja K. Simons, and Nico Blüthgen
Web Ecol., 23, 35–49, https://doi.org/10.5194/we-23-35-2023, https://doi.org/10.5194/we-23-35-2023, 2023
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We focus on the consequences of land-use intensity on functional trait variation within species. In general, only few effects on intraspecific trait variation were found showing a decreasing variation with increasing land-use intensity in forests but an increasing variation in grasslands. Although many studies confirmed strong land-use impacts on arthropod communities, we were not able to confirm similar effects at the intraspecific level.
Fernando T. Maestre, David J. Eldridge, Nicolas Gross, Yoann Le Bagousse-Pinguet, Hugo Saiz, Beatriz Gozalo, Victoria Ochoa, and Juan J. Gaitán
Web Ecol., 22, 75–96, https://doi.org/10.5194/we-22-75-2022, https://doi.org/10.5194/we-22-75-2022, 2022
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Here we introduce the BIODESERT survey, the first systematic field survey devoted to evaluating the joint impacts of grazing by domestic livestock and climate on the structure and functioning of dryland ecosystems worldwide. We describe the major characteristics and the field protocols used in this survey and the organizational aspects followed to carry it out succesfully.
Gabriella Süle, Szilvia Fóti, László Körmöczi, Dóra Petrás, Levente Kardos, and János Balogh
Web Ecol., 21, 95–107, https://doi.org/10.5194/we-21-95-2021, https://doi.org/10.5194/we-21-95-2021, 2021
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Forest–steppe habitats have contrasting canopy structure with strong influence on the spatio-temporal variability of ecosystem functions. In our study, environmental and functional variables were evaluated in this transition zone. We found that topography and vegetation structure have co-varying effects on abiotic–biotic factors. Our observations are valuable for assessing the dynamics of functional and driving variables in this natural transition zone of the temperate vegetation.
Claudia Tluste, Udo Bröring, Tomáš Němec, and Klaus Birkhofer
Web Ecol., 20, 87–94, https://doi.org/10.5194/we-20-87-2020, https://doi.org/10.5194/we-20-87-2020, 2020
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The Roman snail has a high conservation status in Germany, and it is important to study the impact of predators and parasites on local populations. Morphometric traits and signs of external attack and internal utilization were studied in eight subpopulations. External attacks by predators were more frequently recorded on larger shells, while internal utilization depended on body density and local soil pH values. This highlights the value of abiotic habitat conditions and trophic interactions.
Laura Concostrina-Zubiri, Juan M. Arenas, Isabel Martínez, and Adrián Escudero
Web Ecol., 19, 39–51, https://doi.org/10.5194/we-19-39-2019, https://doi.org/10.5194/we-19-39-2019, 2019
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Can organisms other than vascular plants establish and develop on road slopes? Yes, biological soil crusts (or biocrusts) can. Here, we found that lichen biocrusts are common and relatively abundant in road slopes after ~20 years of construction with no assistance needed. These findings are of critical importance for dryland restoration because biocrusts can speed up ecosystem recovery by stabilizing soil surface, improving soil fertility and facilitating vascular plant establishment.
F. Amaral and M. Abelho
Web Ecol., 16, 3–5, https://doi.org/10.5194/we-16-3-2016, https://doi.org/10.5194/we-16-3-2016, 2016
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In this study we assessed carbon, nitrogen and phosphorus in soil and soil microbial biomass subject to conventional farming and three different organic farming practices. The results showed that microbial biomass was P-limited in soils subject to conventional farming and to organic farming with alfalfa green manure. Organic farming with compost amendment showed the best results in terms of microbial performance.
R. G. Woodmansee and S. R. Woodmansee
Web Ecol., 15, 43–44, https://doi.org/10.5194/we-15-43-2015, https://doi.org/10.5194/we-15-43-2015, 2015
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The state of “ecosystem” ecology before 1970 is discussed briefly with emphasis on development of a new paradigm – systems ecology. The philosophy and theory embedded in ecosystem science, the methodologies introduced for conducting research, and the development of a vast warehouse of knowledge as they developed after 1970 are explored. The discussion ends with the contributions of the new paradigm to current and future local- to global-scale environmental and societal problems and solutions.
M. Abelho
Web Ecol., 14, 13–22, https://doi.org/10.5194/we-14-13-2014, https://doi.org/10.5194/we-14-13-2014, 2014
H. Doi
Web Ecol., 13, 91–93, https://doi.org/10.5194/we-13-91-2013, https://doi.org/10.5194/we-13-91-2013, 2013
S. Bocking
Web Ecol., 13, 43–47, https://doi.org/10.5194/we-13-43-2013, https://doi.org/10.5194/we-13-43-2013, 2013
A. Schreiner, P. Decker, K. Hannig, and A. Schwerk
Web Ecol., 12, 9–17, https://doi.org/10.5194/we-12-9-2012, https://doi.org/10.5194/we-12-9-2012, 2012
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Short summary
We studied rates of litter decomposition in natural and disturbed vegetation on elevation gradients of Mount Kilimanjaro to disentangle effects of climate and disturbance. Decomposition was slower in disturbed than in natural forests, but we did not find a negative effect of disturbance for non-forest vegetation. Decomposition slowed down with increasing land-use intensity, but only in the warm wet season. Temperature and humidity were the most important drivers of decomposition in all analyses.
We studied rates of litter decomposition in natural and disturbed vegetation on elevation...