scholarly journals Ecological dynamics of the almond floral microbiome in relation to crop management and pollination

2020 ◽  
Author(s):  
Robert N. Schaeffer ◽  
David W. Crowder ◽  
Javier Gutiérrez Illán ◽  
John J. Beck ◽  
Tadashi Fukami ◽  
...  
Keyword(s):  
Ecosystem Services ◽  
Microbial Communities ◽  
Management Practices ◽  
Agricultural Landscapes ◽  
List Type ◽  
Floral Tissue ◽  
Fungal Abundance ◽  
Orchard Management ◽  
Abundance And Diversity

AbstractCrop tissues harbor microbiomes that can affect host health and yield. However, processes driving microbiome assembly, and resulting effects on ecosystem services, remain poorly understood. This is particularly true of flowering crops that rely on pollinators for yield.We assessed effects of orchard management tactics and landscape context on the flower microbiome in almond, Prunus dulcis. Fourteen orchards (5 conventional, 4 organic, 5 habitat augmentation) were sampled at two bloom stages to characterize bacterial and fungal communities associated with floral tissues. The surveys were complemented by in vitro experiments to assess effects of arrival order and fungicides on nectar microbial communities, and effects of fungicides and microbes on honey bee foraging. Finally, a field trial was conducted to test effects of fungicides and microbes on pollination.As bloom progressed, bacterial and fungal abundance and diversity increased, across all floral tissue types and management strategies. The magnitude by which microbial abundance and diversity were affected varied, with host proximity to apiaries and orchard management having notable effects on bacteria and fungi, respectively.Experiments showed immigration history and fungicides affected the composition of nectar microbial communities, but only fungicides affected pollinator foraging through reduced nectar removal. Neither treatment affected pollination services.Synthesis and applications. Our results shed light on routes through which management practices can shape microbiota associated with flowers of a pollinator-dependent crop. With growing appreciation for the role of floral-associated microbes in affecting biotic interactions at the floral interface, understanding such drivers can potentially inform microbial-derived ecosystem services in agricultural landscapes, including pollination and biocontrol.

scholarly journals Assessing Ecosystem Services Supplied by Agroecosystems in Mediterranean Europe: A Literature Review

Land ◽  
2020 ◽  
Vol 9 (8) ◽  
pp. 245 ◽  
Author(s):  
Mario V. Balzan ◽  
Renata Sadula ◽  
Laura Scalvenzi
Keyword(s):  
Ecosystem Services ◽  
Literature Review ◽  
Ecosystem Service ◽  
Mediterranean Region ◽  
Management Practices ◽  
Cropping Systems ◽  
Agricultural Landscapes ◽  
Ecosystem Structure ◽  
Wide Range ◽  
The Mediterranean

Agricultural landscapes in the Mediterranean region may be considered as social-ecological systems that are important for biodiversity conservation whilst contributing to a wide range of ecosystem services. This literature review aims to identify the current state and biases of ecosystem service assessment in agroecosystems within the Mediterranean region, evaluate pressures impacting on agroecosystems and their services, and practices that promote ecosystem service synergies in Mediterranean agroecosystems. A total of 41 papers were selected for analysis from a set of 573 potentially relevant papers. Most of the selected papers focused on supporting, regulating and provisioning services, and mostly assessed ecosystem structure or services in the European Mediterranean context. Literature about benefits and values ascribed to by communities and stakeholders remain limited. Results presented here support the notion of multifunctional Mediterranean agroecosystems and multiple synergies were recorded in this review. Publications dealing with pressures that related to agricultural practices and demographic changes were in the majority and impact on different cropping systems. This review highlights the need to carry out integrated ecosystem service assessments that consider the multiple benefits derived from agroecosystems and which may be used to identify management practices that lead to the improvement of ecosystem services capacities and flows.

Implications of land management practices on selected ecosystem services in the agricultural landscapes of Ethiopia: a review

2021 ◽  
pp. 1-18
Author(s):  
Abera Assefa Biratu ◽  
Bobe Bedadi ◽  
Solomon Gebreyohannis Gebrehiwot ◽  
Tilahun Hordofa ◽  
Desale Kidane Asmamaw ◽  
...  
Keyword(s):  
Ecosystem Services ◽  
Land Management ◽  
Management Practices ◽  
Agricultural Landscapes

scholarly journals The functional agrobiodiversity in the Douro demarcated region viticulture: utopia or reality? Arthropods as a case-study – A review

2019 ◽  
Vol 34 (2) ◽  
pp. 102-114
Author(s):  
Fátima Gonçalves ◽  
Cristina Carlos ◽  
António Crespi ◽  
Claire Villemant ◽  
Valeria Trivellone ◽  
...  
Keyword(s):  
Ecosystem Services ◽  
Management Practices ◽  
Biological Diversity ◽  
Ground Cover ◽  
Well Being ◽  
Provision Of Services ◽  
Development Goals ◽  
Abundance And Diversity ◽  
Aichi Biodiversity Targets ◽  
Taxonomic Groups

Aiming to reduce the losses of biodiversity and the degradation of associated ecosystem services, the United Nations established the 2011-2020 period as the UN Decade on Biodiversity. During this period, the countries involved compromised on implementing the Strategic Plan for Biodiversity, including the Aichi Biodiversity Targets. The argument is that biological diversity underpins the functioning of ecosystems and the provision of services essential to human well-being, further contributing to economic development and the achievement of the Millennium Development Goals. The purpose of this review is to present results of research and academic works carried out over several years in the Douro Demarcated Region in the field of functional agrobiodiversity, understood as the part of ecosystem biodiversity that provides ecosystem services, which support sustainable agricultural production and can also bring benefits to the regional and global environment and to society as a whole. Such studies specifically aimed to contribute knowledge about the diversity of arthropods in the vineyard ecosystem and about practices that can increase their abundance, diversity and services provided. In this context, a general characterization of the arthropod community identified in the vineyard ecosystem is conducted, complemented by information on the role played, by the taxonomic groups identified. The importance of increasing arthropod populations, the vegetation of vineyard slopes, and the existence of shrubs, forests and hedgerows next to the vineyards is discussed. The fundamental role of soil management practices is also referred, namely that of ground cover and the application of compost from winery wastes in the abundance and diversity of these organisms populations. Finally, bearing in mind the importance of the use of this information by vine growers, the measures taken for its dissemination are also presented.

Landscape complexity perception and representation in a wine-growing region with the designation of origin in the Loire Valley (France): a cultural ecosystem service?

2018 ◽  
Vol 35 (1) ◽  
pp. 77-89 ◽  
Author(s):  
Morgane E. T. Hervé ◽  
Philippe Boudes ◽  
Caroline Cieslik ◽  
David Montembault ◽  
Vincent Jung ◽  
...  
Keyword(s):  
Ecosystem Services ◽  
Management Practices ◽  
Landscape Planning ◽  
Soil Management ◽  
Agricultural Landscapes ◽  
Cultural Ecosystem Services ◽  
Landscape Complexity ◽  
Tourism Professionals ◽  
Cultural Ecosystem Service ◽  
Growing Region

AbstractEcosystem services related to biodiversity, including cultural services, are essential for agricultural production such as viticulture. In agricultural landscapes, pesticides and mechanization threaten biodiversity, lead to landscape simplification and may reduce ecosystem services. On the other hand, consumers are more and more aware of environmental issues in food production. We investigated if landscape complexity, including soil management practices, was (i) appreciated by visitors and (ii) presented by winegrowers and tourism professionals in the French vineyards with the designation of geographical origin (DGO) ‘Coteaux du Layon’. Our goal was to determine if landscape complexity provides cultural ecosystem services such as aesthetics beneficial for the wine trade and the DGO region's attractiveness. We analyzed the iconographic content and the composition of landscape photographs on 50 websites to investigate if local winegrowers and tourism professionals associate biodiversity in the landscape and soil management practices with wine promotion. A questionnaire was realized to study the perception of local landscapes by interviewing 192 visitors of the region. The benefits of landscape complexity and soil management practices favoring biodiversity in viticulture were known and appreciated by many visitors, even if photographs of wine and traditional practices appeared to encourage wine purchasing. Local winegrowers’ representation of the DGO region only partially served these preferences; instead they mainly presented the wine-growing region by photographs focusing on wine bottles and vineyards. Consumer's preferences showed that complex landscapes could provide cultural ecosystem services that winegrowers are still less aware of. Therefore, complexity-targeted landscape planning including vegetation cover in soil management should be included in policy recommendations as agroecological measures for sustainable DGO production.

Eutrophication of agricultural streams: defining nutrient concentrations to protect ecological condition

2008 ◽  
Vol 58 (11) ◽  
pp. 2203-2210 ◽  
Author(s):  
Patricia A. Chambers ◽  
C. Vis ◽  
R. B. Brua ◽  
M. Guy ◽  
J. M. Culp ◽  
...  
Keyword(s):  
Management Practices ◽  
Ecological Condition ◽  
Agricultural Landscapes ◽  
Nutrient Concentrations ◽  
Total N ◽  
Beneficial Management Practices ◽  
Agricultural Streams ◽  
Abundance And Diversity ◽  
Total P

Inputs of nutrients (phosphorus, P, and nitrogen, N) to coastal and fresh waters can accelerate eutrophication, resulting in excessive aquatic plant growth, depletion of oxygen, and deleterious changes in abundance and diversity of organisms. Using long-term (∼1995–2005) monitoring data from agriculturally-dominated watersheds in southern Ontario and Quebec, Canada, we developed and tested several approaches for setting targets for N and P. Our research showed that it is possible to set scientifically-credible targets for total P and total N to protect ecological condition of streams in agricultural landscapes, and define achievable targets attainable following adoption of beneficial management practices.

DER EINFLUSS VON RESERPIN AUF DIE ANTITHYREOIDALE WIRKUNG VON KALIUMPERCHLORAT

1962 ◽  
Vol 39 (3) ◽  
pp. 423-430
Author(s):  
H. L. Krüskemper ◽  
F. J. Kessler ◽  
E. Steinkrüger
Keyword(s):  
Thyroid Gland ◽  
Male Rats ◽  
Normal Male ◽  
Tissue Respiration ◽  
List Type ◽  
Morphological Alterations ◽  
Hormone Synthesis ◽  
Stimulation Of

ABSTRACT 1. Reserpine does not inhibit the tissue respiration of liver in normal male rats (in vitro). 2. The decrease of tissue respiration of the liver with simultaneous morphological stimulation of the thyroid gland after long administration of reserpine is due to a minute inhibition of the hormone synthesis in the thyroid gland. 3. The morphological alterations of the thyroid in experimental hypothyroidism due to perchlorate can not be prevented with reserpine.

LACK OF EFFECT OF CORTICOSTEROIDS ON THE IN VIVO DISAPPEARANCE OF SULFHYDRYL-INHIBITED AND ANTIBODY-COATED ERYTHROCYTES

1964 ◽  
Vol 47 (3_Suppl) ◽  
pp. S28-S36
Author(s):  
Kailash N. Agarwal
Keyword(s):  
Red Cells ◽  
List Type ◽  
Red Cell

ABSTRACT Red cells were incubated in vitro with sulfhydryl inhibitors and Rhantibody with and without prior incubation with prednisolone-hemisuccinate. These erythrocytes were labelled with Cr51 and P32 and their disappearance in vivo after autotransfusion was measured. Prior incubation with prednisolone-hemisuccinate had no effect on the rate of red cell disappearance. The disappearance of the cells was shown to take place without appreciable intravascular destruction.

ÉTUDE IN VITRO DU MÉTABOLISME DES HYDRATES DE CARBONE DANS LE LEUCOCYTE CIRCULANT DU COBAYE TRAITÉ À LA CORTISONE

1966 ◽  
Vol 51 (2) ◽  
pp. 193-202
Author(s):  
J. A. Antonioli ◽  
A. Vannotti
Keyword(s):  
Glucose Concentration ◽  
Intramuscular Injection ◽  
Acute Inflammation ◽  
Glycogen Content ◽  
Glycogen Synthesis ◽  
Lactate Production ◽  
Glucose Consumption ◽  
List Type ◽  
Hydrates De Carbone

ABSTRACT 1. The metabolism of suspensions of circulating leucocytes has been studied after intramuscular injection of a dose of 50 mg/kg of a corticosteroid (cortisone acetate). The suspensions were incubated under aerobic conditions in the presence of a glucose concentration of 5.6 mm. Glucose consumption, lactate production, and variations in intracellular glycogen concentration were measured. After the administration of the corticosteroid, the anabolic processes of granulocyte metabolism were reversibly stimulated. Glucose consumption and lactate production increased 12 hours after the injection, but tended to normalize after 24 hours. The glycogen content of the granulocytes was enhanced, and glycogen synthesis during the course of the incubation was greatly stimulated. The action of the administered corticosteroid is more prolonged in females than in males. The injection of the corticosteroid caused metabolic modifications which resemble in their modulations and in their chronological development those found in circulating granulocytes of guinea-pigs suffering from sterile peritonitis. These results suggest, therefore, that, in the case of acute inflammation, the glucocorticosteroids may play an important role in the regulation of the metabolism of the blood leucocytes.

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