Search results for: K. Peters

Items from 1 to 20 out of 875 results

article

Hill–Chao numbers allow decomposing gamma multifunctionality into alpha and beta components

Anne Chao, Chun‐Huo Chiu, Kai‐Hsiang Hu, Fons Plas, more

Biodiversity–ecosystem functioning (BEF) research has provided strong evidence and mechanistic underpinnings to support positive effects of biodiversity on ecosystem functioning, from single to multiple functions. This research has provided knowledge gained mainly at the local alpha scale (i.e. within ecosystems), but the increasing homogenization of landscapes in the Anthropocene has raised the potential...

article

Nutrient use by tropical ant communities varies among three extensive elevational gradients: A cross‐continental comparison

Jimmy Moses, Marcell K. Peters, Yvonne Tiede, Ondrej Mottl, more

Global Ecology and Biogeography > 32 > 12 > 2212 - 2229

Aim Many studies demonstrate that climate limits invertebrates along tropical elevational gradients, but we have only a rudimentary understanding of the role of nutrient limitation and climatic seasonality. Here we examined the relationships between ant community structure, nutrient use and season along three undisturbed elevational gradients, each from a different continent. Location Ecuador (South...

article

Species richness, vegetation structure, and floristic composition of woody plants along the elevation gradient of Mt. Meru, Tanzania

Julius V. Lasway, Henry K. Njovu, Abraham Eustace, Karen Marie Mathisen, more

Biotropica > 55 > 4 > 828 - 838

Understanding the change in vegetation composition along elevational gradients is critical for species conservation in a changing world. We studied the species richness, tree height, and floristic composition of woody plants along an elevation gradient of protected habitats on the eastern slope of Mount Meru and analyzed how these vegetation variables are influenced by the interplay of temperature...

article

Enhancing the structural diversity between forest patches—A concept and real‐world experiment to study biodiversity, multifunctionality and forest resilience across spatial scales

Jörg Müller, Oliver Mitesser, Marc W. Cadotte, Fons Plas, more

Global Change Biology > 29 > 6 > 1437 - 1450

Intensification of land use by humans has led to a homogenization of landscapes and decreasing resilience of ecosystems globally due to a loss of biodiversity, including the majority of forests. Biodiversity–ecosystem functioning (BEF) research has provided compelling evidence for a positive effect of biodiversity on ecosystem functions and services at the local (α‐diversity) scale, but we largely...

article

Agricultural intensification with seasonal fallow land promotes high bee diversity in Afrotropical drylands

Julius V. Lasway, Marcell K. Peters, Henry K. Njovu, Connal Eardley, more

Journal of Applied Ecology > 59 > 12 > 3014 - 3026

The exponential increase in the human population in tandem with increased food demand has caused agriculture to be the global‐dominant form of land use. Afrotropical drylands are currently facing the loss of natural savannah habitats and agricultural intensification with largely unknown consequences for bees. Here we investigate the effects of agricultural intensification on bee assemblages in...

article

The role of diversity, body size and climate in dung removal: A correlative and experimental approach

Friederike Gebert, Ingolf Steffan‐Dewenter, Patrick Kronbach, Marcell K. Peters

Journal of Animal Ecology > 91 > 11 > 2181 - 2191

The mechanisms by which climatic changes influence ecosystem functions, that is, by a direct climatic control of ecosystem processes or by modifying richness and trait compositions of species communities, remain unresolved. This study is a contribution to this discourse by elucidating the linkages between climate, land use, biodiversity, body size and ecosystem functions. We disentangled direct...

article

Clinical Progress Note: Consolidated Guidelines on Management of Coagulopathy and Antithrombotic Agents for Common Bedside Procedures

Jessica A Blank, Kyle K Peters, Matt A O'Donnell, André M Mansoor

Journal of Hospital Medicine > 16 > 11 > 675 - 679

article

Social relevance modulates multivariate neural representations of threat generalization in children and adults

Dana E. Glenn, Julia S. Feldman, Elizabeth J. Ivie, Tomer Shechner, more

Developmental Psychobiology > 63 > 7 > n/a - n/a

Few studies have examined threat generalization across development and no developmental studies have compared the generalization of social versus nonsocial threat, making it difficult to identify contextual factors that contribute to threat learning across development. The present study assessed youth and adults’ multivoxel neural representations of social versus nonsocial threat stimuli. Twenty adults...

article

Ship‐iceberg discrimination from Sentinel‐1 synthetic aperture radar data using parallel convolutional neural network

Lan Song, Dennis K. Peters, Weimin Huang, Desmond Power

Concurrency and Computation: Practice and Experience > 33 > 17 > n/a - n/a

Ships and icebergs are similar in size and intensity in SAR images, so it is difficult to distinguish them in remote sensing images. Deep learning is a technique based on neural networks, which has played an important role in image information processing. In order to address the challenge of ship and iceberg classification, we present a convolutional neural network (CNN) based classification method...

article

Climate and food resources shape species richness and trophic interactions of cavity‐nesting Hymenoptera

Antonia V. Mayr, Marcell K. Peters, Connal D. Eardley, Marion E. Renner, more

Journal of Biogeography > 47 > 4 > 854 - 865

Aim Temperature, food resources and top‐down regulation by antagonists are considered as major drivers of insect diversity, but their relative importance is poorly understood. Here, we used cavity‐nesting communities of bees, wasps and their antagonists to reveal the role of temperature, food resources, parasitism rate and land use as drivers of species richness at different trophic levels along...

article

Climate rather than dung resources predict dung beetle abundance and diversity along elevational and land use gradients on Mt. Kilimanjaro

Friederike Gebert, Ingolf Steffan‐Dewenter, Philippe Moretto, Marcell K. Peters

Journal of Biogeography > 47 > 2 > 371 - 381

Aim While elevational gradients in species richness constitute some of the best depicted patterns in ecology, there is a large uncertainty concerning the role of food resource availability for the establishment of diversity gradients in insects. Here, we analysed the importance of climate, area, land use and food resources for determining diversity gradients of dung beetles along extensive elevation...

article

Primary productivity and habitat protection predict elevational species richness and community biomass of large mammals on Mt. Kilimanjaro

Friederike Gebert, Henry K. Njovu, Anna C. Treydte, Ingolf Steffan‐Dewenter, more

Journal of Animal Ecology > 88 > 12 > 1860 - 1872

Despite their diversity and their large functional and cultural importance, the patterns and predictors of large mammal diversity along elevational gradients on tropical mountains remain poorly understood. Today, large mammals are threatened by human disturbances such as habitat destruction and hunting and may increasingly depend on the conservation of protected areas. Here, we use field data...

article

ATLAS b-jet identification performance and efficiency measurement with $$t{\bar{t}}$$ tt¯ events in pp collisions at $$\sqrt{s}=13$$ s=13 TeV

G. Aad, B. Abbott, D. C. Abbott, A. Abed Abud, more

The European Physical Journal C > 2019 > 79 > 11 > 1-36

The algorithms used by the ATLAS Collaboration during Run 2 of the Large Hadron Collider to identify jets containing b-hadrons are presented. The performance of the algorithms is evaluated in the simulation and the efficiency with which these algorithms identify jets containing b-hadrons is measured in collision data. The measurement uses a likelihood-based method in a sample highly enriched in $$t{\bar{t}}$$...

article

Measurement of $$W^\pm $$ W± boson production in Pb+Pb collisions at $$\sqrt{s_{\mathrm{NN}}} = 5.02~\text {Te}\text {V}$$ sNN=5.02Te with the ATLAS detector

G. Aad, B. Abbott, D. C. Abbott, A. Abed Abud, more

The European Physical Journal C > 2019 > 79 > 11 > 1-32

A measurement of $$W^\pm $$ W± boson production in Pb+Pb collisions at $$\sqrt{s_\mathrm {NN}} = 5.02~\text {Te}\text {V}$$ sNN=5.02Te is reported using data recorded by the ATLAS experiment at the LHC in 2015, corresponding to a total integrated luminosity of $$0.49\;\mathrm {nb^{-1}}$$ 0.49nb-1 . The $$W^\pm $$ W± bosons are reconstructed in the electron or muon leptonic decay channels. Production...

article

Measurement of $$W^{\pm }$$ W± -boson and Z-boson production cross-sections in pp collisions at $$\sqrt{s}=2.76$$ s=2.76 TeV with the ATLAS detector

ATLAS Collaboration, G. Aad, B. Abbott, D. C. Abbott, more

The European Physical Journal C > 2019 > 79 > 11 > 1-29

The production cross-sections for $$W^{\pm }$$ W± and Z bosons are measured using ATLAS data corresponding to an integrated luminosity of 4.0 pb$$^{-1}$$ -1 collected at a centre-of-mass energy $$\sqrt{s}=2.76$$ s=2.76 TeV. The decay channels $$W \rightarrow \ell \nu $$ W→ℓν and $$Z \rightarrow \ell \ell $$ Z→ℓℓ are used, where $$\ell $$ ℓ can be an electron or a muon. The cross-sections are...

article

Leaf traits mediate changes in invertebrate herbivory along broad environmental gradients on Mt. Kilimanjaro, Tanzania

Henry K. Njovu, Marcell K. Peters, David Schellenberger Costa, Roland Brandl, more

Journal of Animal Ecology > 88 > 11 > 1777 - 1788

Temperature, primary productivity, plant functional traits, and herbivore abundances are considered key predictors of leaf herbivory but their direct and indirect contributions to community‐level herbivory are not well understood along broad climatic gradients. Here, we determined elevational herbivory patterns and used a path analytical approach to disentangle the direct and indirect effects...

article

Search for heavy neutral leptons in decays of W bosons produced in 13 TeV pp collisions using prompt and displaced signatures with the ATLAS detector

The ATLAS collaboration, G. Aad, B. Abbott, D. C. Abbott, more

Journal of High Energy Physics > 2019 > 2019 > 10 > 1-47

Abstract The problems of neutrino masses, matter-antimatter asymmetry, and dark matter could be successfully addressed by postulating right-handed neutrinos with Majorana masses below the electroweak scale. In this work, leptonic decays of W bosons extracted from 32.9 fb⁻¹ to 36.1 fb⁻¹ of 13 TeV proton–proton collisions at the LHC are used to search for heavy neutral leptons (HNLs) that are produced...

article

Measurement of fiducial and differential $$W^+W^-$$ W+W- production cross-sections at $$\sqrt{s}=13$$ s=13 TeV with the ATLAS detector

ATLAS collaboration, M. Aaboud, G. Aad, B. Abbott, more

The European Physical Journal C > 2019 > 79 > 10 > 1-34

A measurement of fiducial and differential cross-sections for $$W^+W^-$$ W+W- production in proton–proton collisions at $$\sqrt{s}=13$$ s=13 TeV with the ATLAS experiment at the Large Hadron Collider using data corresponding to an integrated luminosity of 36.1 $$\hbox {fb}^{-1}$$ fb-1 is presented. Events with one electron and one muon are selected, corresponding to the decay of the diboson system...

article

Measurement of the inclusive isolated-photon cross section in pp collisions at s $$ \sqrt{s} $$ = 13 TeV using 36 fb⁻¹ of ATLAS data

The ATLAS collaboration, G. Aad, B. Abbott, D. C. Abbott, more

Journal of High Energy Physics > 2019 > 2019 > 10 > 1-51

Abstract The differential cross section for isolated-photon production in pp collisions is measured at a centre-of-mass energy of 13 TeV with the ATLAS detector at the LHC using an integrated luminosity of 36.1 fb⁻¹. The differential cross section is presented as a function of the photon transverse energy in different regions of photon pseudorapidity. The differential cross section as a function...

article

Measurement of the inclusive cross-section for the production of jets in association with a Z boson in proton–proton collisions at 8 TeV using the ATLAS detector

G. Aad, B. Abbott, D. C. Abbott, O. Abdinov, more

The European Physical Journal C > 2019 > 79 > 10 > 1-47

The inclusive cross-section for jet production in association with a Z boson decaying into an electron–positron pair is measured as a function of the transverse momentum and the absolute rapidity of jets using 19.9 fb$$^{-1}$$ -1 of $$\sqrt{s}=8$$ s=8 TeV proton–proton collision data collected with the ATLAS detector at the Large Hadron Collider. The measured $$Z\text { + jets}$$ Z+ jets cross-section...

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INFONA - science communication portal

Search results for: K. Peters

Hill–Chao numbers allow decomposing gamma multifunctionality into alpha and beta components

Nutrient use by tropical ant communities varies among three extensive elevational gradients: A cross‐continental comparison

Species richness, vegetation structure, and floristic composition of woody plants along the elevation gradient of Mt. Meru, Tanzania

Enhancing the structural diversity between forest patches—A concept and real‐world experiment to study biodiversity, multifunctionality and forest resilience across spatial scales

Agricultural intensification with seasonal fallow land promotes high bee diversity in Afrotropical drylands

The role of diversity, body size and climate in dung removal: A correlative and experimental approach

Clinical Progress Note: Consolidated Guidelines on Management of Coagulopathy and Antithrombotic Agents for Common Bedside Procedures

Social relevance modulates multivariate neural representations of threat generalization in children and adults

Ship‐iceberg discrimination from Sentinel‐1 synthetic aperture radar data using parallel convolutional neural network

Climate and food resources shape species richness and trophic interactions of cavity‐nesting Hymenoptera

Climate rather than dung resources predict dung beetle abundance and diversity along elevational and land use gradients on Mt. Kilimanjaro

Primary productivity and habitat protection predict elevational species richness and community biomass of large mammals on Mt. Kilimanjaro

ATLAS b-jet identification performance and efficiency measurement with $$t{\bar{t}}$$ tt¯ events in pp collisions at $$\sqrt{s}=13$$ s=13 TeV

Measurement of $$W^\pm $$ W± boson production in Pb+Pb collisions at $$\sqrt{s_{\mathrm{NN}}} = 5.02~\text {Te}\text {V}$$ sNN=5.02Te with the ATLAS detector

Measurement of $$W^{\pm }$$ W± -boson and Z-boson production cross-sections in pp collisions at $$\sqrt{s}=2.76$$ s=2.76 TeV with the ATLAS detector

Leaf traits mediate changes in invertebrate herbivory along broad environmental gradients on Mt. Kilimanjaro, Tanzania

Search for heavy neutral leptons in decays of W bosons produced in 13 TeV pp collisions using prompt and displaced signatures with the ATLAS detector

Measurement of fiducial and differential $$W^+W^-$$ W+W- production cross-sections at $$\sqrt{s}=13$$ s=13 TeV with the ATLAS detector

Measurement of the inclusive isolated-photon cross section in pp collisions at s $$ \sqrt{s} $$ = 13 TeV using 36 fb⁻¹ of ATLAS data

Measurement of the inclusive cross-section for the production of jets in association with a Z boson in proton–proton collisions at 8 TeV using the ATLAS detector

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