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Article: Farming Intensity Affects Soil Seedbank Composition and Spontaneous Vegetation of Arable Weeds

Köllmann, Philipp / Waldhardt, Rainer

Diversity. 2022 Feb. 04, v. 14, no. 2

2022

Abstract: Former studies carried out in the 2000s in the Lahn-Dill region located in the middle-east of the German state Hesse stated a depletion of arable weeds on the field scale and more diverse weed flora on the landscape scale. Current study, having started ... ...

Abstract	Former studies carried out in the 2000s in the Lahn-Dill region located in the middle-east of the German state Hesse stated a depletion of arable weeds on the field scale and more diverse weed flora on the landscape scale. Current study, having started in 2018, aims to contribute to a better understanding of the interactions between arable weed species diversity, farming intensity, grown crops and landscape area. Moreover, the potential of organic farming methods for conservation and promotion the arable weed diversity is aimed to be assessed with the study. In total, 42 fields in two landscape regions were sampled—six seedbank samples were collected from each field; additionally, data on spontaneous arable weed flora were recorded each spring from 2019 to 2021; emerged aboveground weeds were identified in the fields and their coverage was documented. Four factors were considered in the field trial: Farming practice, landscape area, soil depth and the current crop. Effects of these factors on arable weed species diversity were calculated with a Generalized Linear Model (GLM), resulting in significant effects of the management system, the area and the current crop. Among the four organic farming systems that were sampled, the time period of organic growing had a significant effect on weed seed numbers in the soil with an increase in seed numbers. Average seedbank species numbers were around twice as high in organic farming systems (18 species) compared to conventional managed fields (nine species). Evidence of an ongoing species decline in the region on the landscape scale could be detected by comparison with a former study. Especially rare and endangered weed species are a concern due to seedbank and current vegetation depletion tendencies.
Keywords	buried seeds ; field experimentation ; flora ; landscapes ; linear models ; management systems ; population dynamics ; soil depth ; species diversity ; spring ; vegetation ; weeds ; Germany ; Middle East
Language	English
Dates of publication	2022-0204
Publishing place	Multidisciplinary Digital Publishing Institute
Document type	Article
ZDB-ID	2518137-3
ISSN	1424-2818
ISSN	1424-2818
DOI	10.3390/d14020111
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Begonia goldingiana L. Kollmann & A. P. Fontana (Begoniaceae)

Kollmann, Ludovic Jean Charles / Paviotti Fontana, André

Candollea : journal international de botanique systématique = international journal of systematic botany ; 127531-8 ; 0373-2967 ; 65 ; 2010 ; 2 ; 185

a new species from the Atlantic Forest of Southern Bahia, Brazil

2010

Publisher	Conservatoire et Jardin Botaniques
Publishing country	ch
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Farming Intensity Affects Soil Seedbank Composition and Spontaneous Vegetation of Arable Weeds

Philipp Köllmann / Rainer Waldhardt

Diversity, Vol 14, Iss 111, p

2022 Volume 111

Abstract	Former studies carried out in the 2000s in the Lahn-Dill region located in the middle-east of the German state Hesse stated a depletion of arable weeds on the field scale and more diverse weed flora on the landscape scale. Current study, having started in 2018, aims to contribute to a better understanding of the interactions between arable weed species diversity, farming intensity, grown crops and landscape area. Moreover, the potential of organic farming methods for conservation and promotion the arable weed diversity is aimed to be assessed with the study. In total, 42 fields in two landscape regions were sampled—six seedbank samples were collected from each field; additionally, data on spontaneous arable weed flora were recorded each spring from 2019 to 2021; emerged aboveground weeds were identified in the fields and their coverage was documented. Four factors were considered in the field trial: Farming practice, landscape area, soil depth and the current crop. Effects of these factors on arable weed species diversity were calculated with a Generalized Linear Model (GLM), resulting in significant effects of the management system, the area and the current crop. Among the four organic farming systems that were sampled, the time period of organic growing had a significant effect on weed seed numbers in the soil with an increase in seed numbers. Average seedbank species numbers were around twice as high in organic farming systems (18 species) compared to conventional managed fields (nine species). Evidence of an ongoing species decline in the region on the landscape scale could be detected by comparison with a former study. Especially rare and endangered weed species are a concern due to seedbank and current vegetation depletion tendencies.
Keywords	weed seedbank ; farming intensity ; organic farming ; segetal species ; spontaneous vegetation ; weed control ; Biology (General) ; QH301-705.5
Language	English
Publishing date	2022-02-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article: Investigations on Transfer of Pathogens between Foster Cows and Calves during the Suckling Period

Köllmann, Katharina / Wente, Nicole / Zhang, Yanchao / Krömker, Volker

Animals. 2021 Sept. 19, v. 11, no. 9

2021

Abstract: ... sciuri and Streptococcus (Sc.) suis. Transmission of P. multocida and S. aureus probably occurred during ...

Abstract	To date, there have been few studies on the health effects of foster cow systems, including the transmission of mastitis-associated pathogens during suckling. The present study aimed to compare the pathogens detected in the mammary glands of the foster cow with those in the oral cavities of the associated foster calves and to evaluate the resulting consequences for udder health, calf health and internal biosecurity. Quarter milk sampling of 99 foster cows from an organic dairy farm was conducted twice during the foster period. Oral cavity swabs were taken from 345 foster calves. Furthermore, quarter milk samples were collected from 124 biological dams to investigate possible transmission to the foster cows via the suckling calves. All samples were microbiologically examined and confirmed by MALDI-TOF (matrix-assisted laser desorption time-of-flight mass-spectrometry). Using RAPD-PCR (randomly amplified polymorphic DNA polymerase chain reaction), strain similarities were detected for Pasteurella multocida, Staphylococcus aureus, S. sciuri and Streptococcus (Sc.) suis. Transmission of P. multocida and S. aureus probably occurred during suckling. For S. sciuri and Sc. suis, environmental origins were assumed. Transmission from dam to foster cow with the suckling calf as vector could not be clearly demonstrated.
Keywords	DNA-directed DNA polymerase ; Pasteurella multocida ; Staphylococcus aureus ; Streptococcus ; biosecurity ; calves ; cows ; dairy farming ; desorption ; milk ; mouth ; random amplified polymorphic DNA technique ; udders
Language	English
Dates of publication	2021-0919
Publishing place	Multidisciplinary Digital Publishing Institute
Document type	Article
ZDB-ID	2606558-7
ISSN	2076-2615
ISSN	2076-2615
DOI	10.3390/ani11092738
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Near-infrared spectroscopy-based quantification of sunflower oil and pea protein isolate in dense mixtures for novel plant-based products

Köllmann, Nienke / Schreuders, Floor K.G. / Mishra, Puneet / Zhang, Lu / der Goot, Atze Jan van

Journal of Food Composition and Analysis. 2023 Aug., v. 121 p.105414-

2023

Abstract: Techniques to quantify oil and protein in plant-based products are laborious and environmentally harmful. This study explores the potential of near-infrared (NIR) spectroscopy as an alternative method for rapid and non-destructive quantification of oil ... ...

Abstract	Techniques to quantify oil and protein in plant-based products are laborious and environmentally harmful. This study explores the potential of near-infrared (NIR) spectroscopy as an alternative method for rapid and non-destructive quantification of oil and protein in mixtures with known content of sunflower oil and pea protein isolate (PPI). Accurate calibrations with partial least square regression (PLSR) were possible for sunflower oil (Root Mean Standard Error of the Test (RMSET) set, 0.33%; coefficient of determination of the test set (R²ₜ), 0.99) and PPI content (RMSET, 1.24%; R²ₜ, 0.99). Prediction of an extrapolated validation set was less accurate for sunflower oil (Root Mean Standard Error of the Validation (RMSEV) set, 2.65%; coefficient of determination of the validation set (R²ᵥ), 0.70), but was successful for PPI content (RMSEV, 2.43%; R²ᵥ, 0.93). Wavelength range reduction for CH/NH bonds improved the predictions of the PLSR models for oil but not for PPI. Wavelength selection using the Covariance Selection (CovSel) algorithm reduced the number of wavelengths from 2151 to 3 without loss of prediction accuracy within the calibration range. Wavelength range reduction gave the best model for oil; wavelength selection was best for PPI. NIR spectroscopy is a promising tool to determine oil and protein in plant-based foods rapidly and with sufficient accuracy.
Keywords	algorithms ; calibration ; covariance ; food composition ; least squares ; models ; near-infrared spectroscopy ; pea protein ; prediction ; protein isolates ; sunflower oil ; wavelengths ; Plant-based ; Meat analogues ; Oil content ; Protein content ; Wavelength selection ; Partial Least Squares Regression
Language	English
Dates of publication	2023-08
Publishing place	Elsevier Inc.
Document type	Article ; Online
Note	Use and reproduction
ZDB-ID	743572-1
ISSN	0889-1575 ; 1096-0481
ISSN	0889-1575 ; 1096-0481
DOI	10.1016/j.jfca.2023.105414
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Clinical Management of Major Postoperative Bleeding After Bariatric Surgery.

Kollmann, Lars / Gruber, Maximilian / Lock, Johan F / Germer, Christoph-Thomas / Seyfried, Florian

Obesity surgery

2024 Volume 34, Issue 3, Page(s) 751–759

Abstract: ... were more often diagnosed with type 2 diabetes (p = 0.039), chronic kidney failure (p = 0.013) or ... received antiplatelet drug treatment (p = 0.003). The interval from detection to intervention within 24 h ... 75% after SG; p = 0.046). Luminal bleeding only occured after GB (19/31; 61.3%), while all mPOB after ...

Abstract	Introduction: Major postoperative bleeding (mPOB) is the most common complication after bariatric surgery. Its intesity varies from self-limiting to life-threatening situations. Comprehensive decision-making and treatment strategies are mandatory but not established yet. Methods: We retrospectively analyzied our prospectively collected database of our bariatric patients during 2012-2022. The primary study endpoint was major postoperative bleeding (mPOB) defined as hemoglobin drop > 2 g/dl or clinically relevant bleeding requiring intervention (transfusion, endoscopy or surgery). Secondary endpoints were overall complications according to Clavien-Dindo-Classification and comprehensive-complication-index (CCI). Results: We identified 1017 patients, of whom 667 underwent gastric bypass (GB) and 350 sleeve gastrectomy (SG). Major postoperative bleeding occured in 39 patients (total 3.8%; 5.1% after GB and 2.3% after SG). Patients with mPOB were more often diagnosed with type 2 diabetes (p = 0.039), chronic kidney failure (p = 0.013) or received antiplatelet drug treatment (p = 0.003). The interval from detection to intervention within 24 h was 92.1% (35/39). Blood transfusions were necessary in 20/39 cases (total 51.3%; 45.2% after GB and 75% after SG; p = 0.046). Luminal bleeding only occured after GB (19/31; 61.3%), while all mPOB after SG were intraabdominal (p = 0.002). Reoperations were performed in 21/39 (total 53.8%; 48.4% after GB and 75% after SG; p = 0.067). CCI in patients with mPOB was 34.7 overall, with 31.2 after GB and 47.9 after SG (p = 0.005). Conclusion: The clinical appearance of mPOB depends on the type of surgery with severe bleedings after SG. We suggest a surgery first approach for mPOB after SG and an endoscopy first approach after GB.
MeSH term(s)	Humans ; Obesity, Morbid/surgery ; Diabetes Mellitus, Type 2/surgery ; Diabetes Mellitus, Type 2/complications ; Retrospective Studies ; Treatment Outcome ; Bariatric Surgery/adverse effects ; Gastric Bypass/adverse effects ; Postoperative Hemorrhage/epidemiology ; Postoperative Hemorrhage/etiology ; Postoperative Hemorrhage/therapy ; Gastrectomy/adverse effects ; Postoperative Complications/etiology
Language	English
Publishing date	2024-01-20
Publishing country	United States
Document type	Journal Article
ZDB-ID	1070827-3
ISSN	1708-0428 ; 0960-8923
ISSN (online)	1708-0428
ISSN	0960-8923
DOI	10.1007/s11695-023-07040-0
Database	MEDical Literature Analysis and Retrieval System OnLINE

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bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
Jg. 1995 - 2021: Lesesall (2.OG)
ab Jg. 2022: Lesesaal (EG)

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Book ; Online: Familiennamen zwischen Maas und Rhein

Gilles, Peter / Kollmann, Cristian / Muller, Claire

2014

Keywords	Philology. Linguistics ; Literature (General)
Size	1 electronic resource (226 pages)
Publisher	Peter Lang International Academic Publishing Group
Document type	Book ; Online
Note	German ; Open Access
HBZ-ID	HT020678201
ISBN	9783653041880 ; 3653041880
DOI	10.3726/978-3-653-04188-0
Database	ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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Article ; Online: Near-infrared spectroscopy-based quantification of sunflower oil and pea protein isolate in dense mixtures for novel plant-based products

Köllmann, Nienke / Schreuders, Floor K.G. / Mishra, Puneet / Zhang, Lu / van der Goot, Atze Jan

Journal of Food Composition and Analysis

2023 Volume 121

Abstract	Techniques to quantify oil and protein in plant-based products are laborious and environmentally harmful. This study explores the potential of near-infrared (NIR) spectroscopy as an alternative method for rapid and non-destructive quantification of oil and protein in mixtures with known content of sunflower oil and pea protein isolate (PPI). Accurate calibrations with partial least square regression (PLSR) were possible for sunflower oil (Root Mean Standard Error of the Test (RMSET) set, 0.33%; coefficient of determination of the test set (R2t), 0.99) and PPI content (RMSET, 1.24%; R2t, 0.99). Prediction of an extrapolated validation set was less accurate for sunflower oil (Root Mean Standard Error of the Validation (RMSEV) set, 2.65%; coefficient of determination of the validation set (R2v), 0.70), but was successful for PPI content (RMSEV, 2.43%; R2v, 0.93). Wavelength range reduction for CH/NH bonds improved the predictions of the PLSR models for oil but not for PPI. Wavelength selection using the Covariance Selection (CovSel) algorithm reduced the number of wavelengths from 2151 to 3 without loss of prediction accuracy within the calibration range. Wavelength range reduction gave the best model for oil; wavelength selection was best for PPI. NIR spectroscopy is a promising tool to determine oil and protein in plant-based foods rapidly and with sufficient accuracy.
Keywords	Meat analogues ; Near-infrared spectroscopy ; Oil content ; Partial Least Squares Regression ; Plant-based ; Protein content ; Wavelength selection
Subject code	571
Language	English
Publishing country	nl
Document type	Article ; Online
ZDB-ID	743572-1
ISSN	0889-1575 ; 1096-0481
ISSN	0889-1575 ; 1096-0481
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Investigations on Transfer of Pathogens between Foster Cows and Calves during the Suckling Period

Katharina Köllmann / Nicole Wente / Yanchao Zhang / Volker Krömker

Animals, Vol 11, Iss 2738, p

2021 Volume 2738

Abstract: ... sciuri and Streptococcus (Sc.) suis . Transmission of P. multocida and S. aureus probably occurred during ...

Abstract	To date, there have been few studies on the health effects of foster cow systems, including the transmission of mastitis-associated pathogens during suckling. The present study aimed to compare the pathogens detected in the mammary glands of the foster cow with those in the oral cavities of the associated foster calves and to evaluate the resulting consequences for udder health, calf health and internal biosecurity. Quarter milk sampling of 99 foster cows from an organic dairy farm was conducted twice during the foster period. Oral cavity swabs were taken from 345 foster calves. Furthermore, quarter milk samples were collected from 124 biological dams to investigate possible transmission to the foster cows via the suckling calves. All samples were microbiologically examined and confirmed by MALDI-TOF (matrix-assisted laser desorption time-of-flight mass-spectrometry). Using RAPD-PCR (randomly amplified polymorphic DNA polymerase chain reaction), strain similarities were detected for Pasteurella multocida, Staphylococcus aureus , S. sciuri and Streptococcus (Sc.) suis . Transmission of P. multocida and S. aureus probably occurred during suckling. For S. sciuri and Sc. suis , environmental origins were assumed. Transmission from dam to foster cow with the suckling calf as vector could not be clearly demonstrated.
Keywords	foster cows ; calf rearing ; suckling ; udder health ; Pasteurella multocida ; Veterinary medicine ; SF600-1100 ; Zoology ; QL1-991
Subject code	630
Language	English
Publishing date	2021-09-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article: Digitalisierung - eine Grundfrage für Europa!

Kollmann, Tobias

Zeitschrift für das gesamte Kreditwesen : Pflichtblatt der Frankfurter Wertpapierbörse Vol. 70, No. 1 , p. 34-35

2017 Volume 70, Issue 1, Page(s) 34–35

Author's details	Tobias Kollmann
Language	German
Publisher	Knapp
Publishing place	Frankfurt, M
Document type	Article
ZDB-ID	5868-3
ISSN	0341-4019
Database	ECONomics Information System

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