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Parri S, Campani T, Conti V, Cai G, Romi M, Casini S, Zari R, Caldini F, Marsili L. New olive-pomace fertilizer tested with a 2-tiers approach: Biomarkers on Eisenia fetida, physiochemical effects on Solanum lycopersicum and Olea europaea. J Environ Manage 2024; 351:119915. [PMID: 38169256 DOI: 10.1016/j.jenvman.2023.119915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 12/06/2023] [Accepted: 12/19/2023] [Indexed: 01/05/2024]
Abstract
Every year, the olive oil industry generates a substantial amount of pomace, a semi-solid residue made up of skin, pulp, pit, and kernel fragments. Rather than being disposed of, the pomace can be dried and transported to an extraction facility where pomace oil can be extracted. Utilizing its high thermal capacity, the extracted pomace can be used as a supplementary fuel in the drying process, resulting in the production of ashes. In this study, the effect of pomace waste applied to the soil was investigated by testing two mixtures with different proportions of de-oiled pomace flour and kernel ash (50:50 and 70:30, respectively) in powder and pellet form. We used a dual approach, evaluating the effects of the mixtures on both soil communities and plant physiology and productivity, to assess the actual usability of the fertilizer in agriculture. The biomarker approach was valuable in assessing the sublethal effects of the two mixtures in powder form in soil. After 30 days of exposure, the bioindicator organism Eisena fetida showed lipid peroxidation, glutathione S-transferase and lactate dehydrogenase levels similar to the control, while lysozyme activity was reduced in all treatments. The powder mixture was lethal to the tomato plants, while there was no evidence of any damage to the olive trees. During 60 days of monitoring, both mixtures in pellet form showed a slight increase in physiological parameters, suggesting a benefit to the photosynthetic system. The improved carbon assimilation in tomato plants treated with the mixtures results in increased plant productivity, both in terms of number and weight of fruits, while maintaining the antioxidant content. This study paves the way for the use of the pomace mixture as a soil improver, thus increasing the value of this waste product.
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Affiliation(s)
- S Parri
- Department of Life Science, University of Siena, 53100, Siena, Italy
| | - T Campani
- Department of Physical, Sciences, Earth and Environment, University of Siena, 53100, Siena, Italy.
| | - V Conti
- Department of Biological, Geological and Environmental Sciences, University of Bologna, 40126, Bologna, Italy
| | - G Cai
- Department of Life Science, University of Siena, 53100, Siena, Italy
| | - M Romi
- Department of Life Science, University of Siena, 53100, Siena, Italy
| | - S Casini
- Department of Physical, Sciences, Earth and Environment, University of Siena, 53100, Siena, Italy
| | - R Zari
- Studio ZARI Agronomi & Forestali, 53014, Monteroni d'Arbia, Siena, Italy
| | - F Caldini
- Caldini Guido s.r.l., 53030, Radicondoli, Siena, Italy
| | - L Marsili
- Department of Physical, Sciences, Earth and Environment, University of Siena, 53100, Siena, Italy
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Cerri L, Parri S, Dias MC, Fabiano A, Romi M, Cai G, Cantini C, Zambito Y. Olive Leaf Extracts from Three Italian Olive Cultivars Exposed to Drought Stress Differentially Protect Cells against Oxidative Stress. Antioxidants (Basel) 2024; 13:77. [PMID: 38247501 PMCID: PMC10812426 DOI: 10.3390/antiox13010077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 01/04/2024] [Accepted: 01/06/2024] [Indexed: 01/23/2024] Open
Abstract
Olive leaves are an abundant by-product of olive oil production. Olive leaf extracts (OLEs) are rich in polyphenols, which can be used for health benefits. As polyphenols are the main antioxidant molecules in plants, plants typically increase their polyphenol content when exposed to drought stress. However, the phenolic profile of OLEs can vary in relation to the origin and variety of the plant material. In this work, olive leaf extracts from three different Italian olive cultivars (Giarraffa, Leccino, and Maurino) both exposed and not exposed to drought stress were studied in terms of antioxidant properties and profile, intestinal permeation, and protection against oxidative stress of human umbilical vein endothelial cells (HUVECs), since HUVECs are considered a model to study a wide range of diseases. OLEs from stressed Maurino and Giarraffa plants showed the highest increase in antioxidant capacity compared to controls. The phenolic profile of Maurino' was mainly increased by water deficit, with a large increase in the compounds oleuropein and luteolin-7-O-rutinoside. All tested extracts exposed to a water deficit protected HUVECs against oxidative stress by reducing ROS production, and this effect was more pronounced in OLEs from Giarraffa and Maurino exposed to drought stress compared to all other extracts. Finally, OLE from the stressed Giarraffa group showed a higher apparent permeability of antioxidant molecules than that of Maurino.
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Affiliation(s)
- Luca Cerri
- Department of Pharmacy, University of Pisa, Via Bonanno 33, 56126 Pisa, Italy; (L.C.); (A.F.); (Y.Z.)
- Department of Life Sciences, University of Siena, Via Mattioli 4, 53100 Siena, Italy; (S.P.); (M.R.)
| | - Sara Parri
- Department of Life Sciences, University of Siena, Via Mattioli 4, 53100 Siena, Italy; (S.P.); (M.R.)
| | - Maria Celeste Dias
- Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal;
| | - Angela Fabiano
- Department of Pharmacy, University of Pisa, Via Bonanno 33, 56126 Pisa, Italy; (L.C.); (A.F.); (Y.Z.)
| | - Marco Romi
- Department of Life Sciences, University of Siena, Via Mattioli 4, 53100 Siena, Italy; (S.P.); (M.R.)
| | - Giampiero Cai
- Department of Life Sciences, University of Siena, Via Mattioli 4, 53100 Siena, Italy; (S.P.); (M.R.)
| | - Claudio Cantini
- Institute for BioEconomy (IBE), National Research Council (CNR), Strada Provinciale Aurelia Vecchia 49, 58022 Follonica, Italy;
| | - Ylenia Zambito
- Department of Pharmacy, University of Pisa, Via Bonanno 33, 56126 Pisa, Italy; (L.C.); (A.F.); (Y.Z.)
- Research Centre for Nutraceutical and Healthy Foods “NUTRAFOOD”, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy
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Marcucci G, Beccuti G, Carosi G, Cetani F, Cianferotti L, Colao AM, Di Somma C, Duradoni M, Elefante A, Ghizzoni L, Giusti M, Lania AG, Lavezzi E, Madeo B, Mantovani G, Marcocci C, Masi L, Parri S, Pigliaru F, Santonati A, Spada A, Vera L, Brandi ML. Multicenter retro-prospective observational study on chronic hypoparathyroidism and rhPTH (1-84) treatment. J Endocrinol Invest 2022; 45:1653-1662. [PMID: 35460461 PMCID: PMC9360119 DOI: 10.1007/s40618-022-01800-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Accepted: 03/31/2022] [Indexed: 11/28/2022]
Abstract
PURPOSE The main purpose of this study was to investigate the effects of 12 months of rhPTH (1-84) (Natpar®) treatment in a cohort of patients selected according to the indications of hypoparathyroidism guidelines. The use of recombinant human PTH (1-84) [rhPTH (1-84)] is approved as hormonal replacement therapy in patients with hypoparathyroidism not adequately controlled with conventional therapy. METHODS It is a multicenter, observational, retro-prospective, open label study. Eleven Italian Endocrinological centers, members of Hypoparathyroidism Working Group of the Italian Society of Endocrinology (HypoparaNET) were involved. Main outcome measures were serum and urinary calcium and phosphate concentration, calcium-phosphate product, renal function, oral calcium and vitamin D doses, and clinical manifestations. RESULTS Fourteen adult subjects, affected by chronic hypoparathyroidism, were treated with rhPTH (1-84) for 12 months. At 12 months of rhPTH (1-84) treatment, 61.5% of patients discontinued calcium supplement and 69.2% calcitriol. Mean albumin-adjusted total serum calcium levels quickly normalized after initiation of rhPTH (1-84) treatment compared to baseline (p = 0.009), remaining in the normal range until 12 months. Rare hypo-hypercalcemia episodes were reported. Renal function was maintained normal and no renal complications were reported. Serum and urinary phosphate and urinary calcium were maintained in the normal range. Mean phosphatemia levels linearly decreased from 3 months up to 12 months compared to baseline (p = 0.014). No severe adverse events were described. CONCLUSIONS Biochemical and clinical results confirm the efficacy and safety of rhPTH (1-84) therapy, which represents an important option for hypoparathyroid patients unresponsive to conventional therapy.
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Affiliation(s)
- G Marcucci
- Bone Metabolic Diseases Unit, Department of Biomedical, Experimental and Clinical Sciences, University of Florence, Florence, Italy
| | - G Beccuti
- Department of Medical Sciences, Division of Endocrinology, Diabetes and Metabolism, University of Turin, Corso Dogliotti 14, 10126, Turin, Italy
| | - G Carosi
- Endocrinology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - F Cetani
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - L Cianferotti
- Bone Metabolic Diseases Unit, Department of Biomedical, Experimental and Clinical Sciences, University of Florence, Florence, Italy
| | - A M Colao
- Department of Clinical Medicine and Surgery, Endocrinology Unit, University Medical School of Naples, Via Sergio Pansini 5, 80131, Naples, Italy
| | - C Di Somma
- Department of Clinical Medicine and Surgery, Endocrinology Unit, University Medical School of Naples, Via Sergio Pansini 5, 80131, Naples, Italy
| | - M Duradoni
- Department of Information Engineering, University of Florence, Florence, Italy
| | - A Elefante
- Azienda Ospedaliera Regionale San Carlo, Potenza, Italy
| | - L Ghizzoni
- Department of Medical Sciences, Division of Endocrinology, Diabetes and Metabolism, University of Turin, Corso Dogliotti 14, 10126, Turin, Italy
| | - M Giusti
- Endocrinology Unit, Department of Internal Medicine and Medical Specialties (DiMI), University of Genoa, Genoa, Italy
| | - A G Lania
- Department of Biomedical Sciences, Humanitas University, 20090, Pieve Emanuele, Italy
- Endocrinology, Diabetology and Andrology Unit, Humanitas Clinical and Research Center-IRCCS, 20089, Rozzano, Italy
| | - E Lavezzi
- Endocrinology, Diabetology and Andrology Unit, Humanitas Clinical and Research Center-IRCCS, 20089, Rozzano, Italy
| | - B Madeo
- Unit of Endocrinology, Department of Medical Specialties, Azienda Ospedaliero-Universitaria Di Modena, Modena, Italy
| | - G Mantovani
- Endocrinology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - C Marcocci
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - L Masi
- AUO-Careggi University Hospital, Florence, Italy
| | - S Parri
- Bone Metabolic Diseases Unit, Department of Biomedical, Experimental and Clinical Sciences, University of Florence, Florence, Italy
| | - F Pigliaru
- Endocrinology Unit, Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - A Santonati
- Department of Endocrinology and Diabetology, Azienda Ospedaliera San Giovanni Addolorata, Rome, Italy
| | - A Spada
- Department of Endocrinology and Diabetology, Azienda Ospedaliera San Giovanni Addolorata, Rome, Italy
| | - L Vera
- Endocrinology Unit, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - M L Brandi
- Fondazione Italiana Di Ricerca Sulle Malattie Dell'osso: F.I.R.M.O, Via San Gallo 123, 50100, Florence, Italy.
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Piccini C, Cai G, Dias MC, Araújo M, Parri S, Romi M, Faleri C, Cantini C. Olive Varieties under UV-B Stress Show Distinct Responses in Terms of Antioxidant Machinery and Isoform/Activity of RubisCO. Int J Mol Sci 2021; 22:ijms222011214. [PMID: 34681874 PMCID: PMC8538740 DOI: 10.3390/ijms222011214] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/07/2021] [Accepted: 10/16/2021] [Indexed: 01/27/2023] Open
Abstract
In recent decades, atmospheric pollution led to a progressive reduction of the ozone layer with a consequent increase in UV-B radiation. Despite the high adaptation of olive trees to the Mediterranean environment, the progressive increase of UV-B radiation is a risk factor for olive tree cultivation. It is therefore necessary to understand how high levels of UV-B radiation affect olive plants and to identify olive varieties which are better adapted. In this study we analyzed two Italian olive varieties subjected to chronic UV-B stress. We focused on the effects of UV-B radiation on RubisCO, in terms of quantity, enzymatic activity and isoform composition. In addition, we also analyzed changes in the activity of antioxidant enzymes (SOD, CAT, GPox) to get a comprehensive picture of the antioxidant system. We also evaluated the effects of UV-B on the enzyme sucrose synthase. The overall damage at biochemical level was also assessed by analyzing changes in Hsp70, a protein triggered under stress conditions. The results of this work indicate that the varieties (Giarraffa and Olivastra Seggianese) differ significantly in the use of specific antioxidant defense systems, as well as in the activity and isoform composition of RubisCO. Combined with a different use of sucrose synthase, the overall picture shows that Giarraffa optimized the use of GPox and opted for a targeted choice of RubisCO isoforms, in addition to managing the content of sucrose synthase, thereby saving energy during critical stress points.
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Affiliation(s)
- Chiara Piccini
- Department of Life Sciences, University of Siena, Via Mattioli 4, 53100 Siena, Italy; (C.P.); (S.P.); (M.R.); (C.F.)
- Institute for BioEconomy, National Research Council of Italy, 58022 Follonica, Italy;
| | - Giampiero Cai
- Department of Life Sciences, University of Siena, Via Mattioli 4, 53100 Siena, Italy; (C.P.); (S.P.); (M.R.); (C.F.)
- Correspondence: ; Tel.: +39-057-723-2392; Fax: +39-057-723-2861
| | - Maria Celeste Dias
- Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal; (M.C.D.); (M.A.)
| | - Márcia Araújo
- Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal; (M.C.D.); (M.A.)
- Department of Biology, Faculty of Sciences, University of Porto, Rua Campo Alegre, 4169-007 Porto, Portugal
- CITAB, University of Trás-os-Montes and Alto Douro, 5001-801 Vila Real, Portugal
| | - Sara Parri
- Department of Life Sciences, University of Siena, Via Mattioli 4, 53100 Siena, Italy; (C.P.); (S.P.); (M.R.); (C.F.)
| | - Marco Romi
- Department of Life Sciences, University of Siena, Via Mattioli 4, 53100 Siena, Italy; (C.P.); (S.P.); (M.R.); (C.F.)
| | - Claudia Faleri
- Department of Life Sciences, University of Siena, Via Mattioli 4, 53100 Siena, Italy; (C.P.); (S.P.); (M.R.); (C.F.)
| | - Claudio Cantini
- Institute for BioEconomy, National Research Council of Italy, 58022 Follonica, Italy;
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Conti V, Romi M, Parri S, Aloisi I, Marino G, Cai G, Cantini C. Morpho-Physiological Classification of Italian Tomato Cultivars ( Solanum lycopersicum L.) According to Drought Tolerance during Vegetative and Reproductive Growth. Plants (Basel) 2021; 10:1826. [PMID: 34579359 PMCID: PMC8468351 DOI: 10.3390/plants10091826] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 08/23/2021] [Accepted: 08/29/2021] [Indexed: 01/18/2023]
Abstract
Irrigation is fundamental for agriculture but, as climate change becomes more persistent, there is a need to conserve water and use it more efficiently. It is therefore crucial to identify cultivars that can tolerate drought. For economically relevant crops, such as tomatoes, this purpose takes on an even more incisive role and local agrobiodiversity is a large genetic reservoir of promising cultivars. In this study, nine local Italian cultivars of tomatoes plus four widely used commercial cultivars were considered. These experienced about 20 d of drought, either at vegetative or reproductive phase. Various physio-morphological parameters were monitored, such as stomatal conductance (gs), photosynthesis (A), water use efficiency (WUE), growth (GI) and soil water content (SWC). The different responses and behaviors allowed to divide the cultivars into three groups: tolerant, susceptible, and intermediate. The classification was also confirmed by a principal component analysis (PCA). The study, in addition to deepening the knowledge of local Italian tomato cultivars, reveals how some cultivars perform better under stress condition than commercial ones. Moreover, the different behavior depends on the genotype and on the growth phase of plants. In fact, the Perina cultivar is the most tolerant during vegetative growth while the Quarantino cultivar is mostly tolerant at reproductive stage. The results suggest that selection of cultivars could lead to a more sustainable agriculture and less wasteful irrigation plans.
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Affiliation(s)
- Veronica Conti
- Department of Life Sciences, University of Siena, 53100 Siena, Italy; (M.R.); (S.P.); (G.C.)
| | - Marco Romi
- Department of Life Sciences, University of Siena, 53100 Siena, Italy; (M.R.); (S.P.); (G.C.)
| | - Sara Parri
- Department of Life Sciences, University of Siena, 53100 Siena, Italy; (M.R.); (S.P.); (G.C.)
| | - Iris Aloisi
- Department of Biological, Geological and Environmental Sciences, University of Bologna, Via Irnerio, 40126 Bologna, Italy;
| | - Giovanni Marino
- National Research Council of Italy, Institute of Sustainable Plant Protection (CNR-IPSP), Via Madonna del Piano 10, 50019 Sesto Fiorentino, Italy;
| | - Giampiero Cai
- Department of Life Sciences, University of Siena, 53100 Siena, Italy; (M.R.); (S.P.); (G.C.)
| | - Claudio Cantini
- National Research Council of Italy, Institute for Bioeconomy (CNR-IBE), 58022 Follonica, Italy;
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Cianferotti L, Parri S, Gronchi G, Rizzuti C, Fossi C, Black DM, Brandi ML. Changing patterns of prescription in vitamin D supplementation in adults: analysis of a regional dataset. Osteoporos Int 2015; 26:2695-702. [PMID: 26068296 DOI: 10.1007/s00198-015-3187-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Accepted: 05/20/2015] [Indexed: 11/25/2022]
Abstract
UNLABELLED Scientific interest in vitamin D has greatly risen during the last 10 years. The analysis of the changes in vitamin D prescriptions and related costs in a regional prescription dataset has revealed a profound increase in the period 2006-2013. Further studies on cost-effectiveness of such increase in vitamin D supplementation are needed. INTRODUCTION The aim of this study was to analyze the changes in population-based prescription patterns of vitamin D supplements in the general population in an Italian regional setting during an 8-year period (2006-2013). METHODS Data have been retrieved from the database of reimbursed prescriptions of the Region of Tuscany containing all of the medical reimbursements for the whole regional population (total of 3,619,872 and 3,692,828 inhabitants in 2006 and 2013, respectively). Data referring to adult population (age 20-90+ years) have been considered for this analysis (3,033,530 in 2006 and 3,066,741 in 2013). Two different flows (pharmaceutical distribution dataset and general data flow) were taken into account, using the ATC5 coding system for vitamin D supplements alone or in combination with calcium or alendronate. The number of boxes dispensed was retrieved, the number of patients receiving a specific treatment was calculated, and a cost analysis was performed. RESULTS An upsurge in the prescriptions of vitamin D compounds was disclosed, mainly sustained by a 75.3-fold increase in cholecalciferol, in all age groups and both sexes. This occurred in parallel to a 4.3-fold rise in prescriptions of oral alendronate in combination with cholecalciferol, a slight decrease in dispensed alendronate alone, and a modest increase in the prescription of the combination of calcium salts and cholecalciferol, and calcium alone. The total cost for reimbursement by the Regional Health System for vitamin D-related compounds rose from €3,242,100 euros in 2006 to €8,155,778 in 2013. CONCLUSION The huge increase in vitamin D prescriptions and related costs in the last decade, as revealed by the analysis of a regional pharmaceutical dataset, reflects the increased awareness of the possible consequences of a poor vitamin D status. Further studies on cost-effectiveness of such increase in vitamin D supplementation are needed.
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Affiliation(s)
- L Cianferotti
- Department of Surgery and Translational Medicine, University of Florence, Viale Pieraccini, 6, 50139, Florence, Italy
| | - S Parri
- Department of Surgery and Translational Medicine, University of Florence, Viale Pieraccini, 6, 50139, Florence, Italy
| | - G Gronchi
- Department of Surgery and Translational Medicine, University of Florence, Viale Pieraccini, 6, 50139, Florence, Italy
| | - C Rizzuti
- Department of Surgery and Translational Medicine, University of Florence, Viale Pieraccini, 6, 50139, Florence, Italy
| | - C Fossi
- Department of Surgery and Translational Medicine, University of Florence, Viale Pieraccini, 6, 50139, Florence, Italy
| | - D M Black
- Department of Surgery and Translational Medicine, University of Florence, Viale Pieraccini, 6, 50139, Florence, Italy
| | - M L Brandi
- Department of Surgery and Translational Medicine, University of Florence, Viale Pieraccini, 6, 50139, Florence, Italy.
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Haxhiademi D, Parri S, Cerillo A, Del Sarto P, Paniccia R, Prisco D. Thromboelastography (platelet contribution to clot strength) for the assessment of platelet residual function. Crit Care 2012. [PMCID: PMC3363850 DOI: 10.1186/cc11039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Abstract
In bird species with pair bonds, extra-pair matings could allow females to choose genetically superior males. This is not needed in lekking species because female choice is not constrained by pairing opportunities. However, polyandry has been reported in most lekking species studied so far. Using 12 microsatellite loci, we determined the paternity of 135 broods of black grouse sampled between 2001 and 2005 (970 hatchlings and 811 adult birds genotyped). The paternity assignments were combined to lek observations to investigate the mating behaviour of black grouse females. About 10% of the matings seemed to take place with males displaying solitarily. Forty per cent of the copulations between males displaying on the studied leks and radio-tagged females were not recorded. This was due to difficulties in identifying the females and because our observations did not cover all the possible time for matings. However, females of the undetected copulations had chosen males that were already known to be successful on the leks. There was a strong consistency between the observations and true paternity, even when the copulation was disturbed by a neighbouring male. Multiple mating and multiple paternities were rare. We can now confidently ascertain that most females mate only once with one male for the whole clutch. This mating behaviour requires that a single insemination is sufficient to fertilize a clutch and that females can determine whether the sperm has been successfully transferred. Grouse Tetraoninae with many lekking species may be the only bird taxon that has evolved these traits.
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Affiliation(s)
- C Lebigre
- University of Jyväskylä, Department of Biological and Environmental Science, PO Box 35 (YAC442), FIN-40014 Jyväskylä, Finland.
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Rivero A, Alatalo RV, Kotiaho JS, Mappes J, Parri S. Acoustic signalling in a wolf spider: can signal characteristics predict male quality? Anim Behav 2000; 60:187-194. [PMID: 10973720 DOI: 10.1006/anbe.2000.1452] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
While there has been considerable interest in female choice for male sexual signals, there have been few studies of the underlying information that different aspects of the signal calls convey. Such studies, however, are essential to understand the significance of signals as honest handicaps, arbitrary Fisherian traits and/or in species recognition. We studied the somewhat exceptional system of audible drumming in the wolf spider Hygrolycosa rubrofasciata. We estimated the repeatabilities of signal components, the levels of between-male variance, the symmetry of the signal, the correlations between different aspects of drumming and their correlations with body weight. While in other taxa the frequency of audible signals may convey honest information of male size, in this species signal frequency was not related to male size and had a low repeatability. The pulse rate within each drum was highly repeatable but had a relatively small between-male coefficient of variation. In previous studies on this species, these traits were not important for male mating success. Among the traits directionally preferred by females, signal volume had considerable repeatability. Signal length was repeatable with high variability between males. In one population, signal length and volume were positively correlated with the rate at which males produced the drumming signals, a trait essential for male mating success. Thus, while signal length may reliably indicate male quality, other signal characteristics such as peak frequency and symmetry were not repeatable or were static and not related to any other male traits. Copyright 2000 The Association for the Study of Animal Behaviour.
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Affiliation(s)
- A Rivero
- Department of Biological and Environmental Sciences, University of Jyväskylä
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Kotiaho JS, Alatalo RV, Mappes J, Parri S. Honesty of agonistic signalling and effects of size and motivation asymmetry in contests. Acta Ethol 1999. [DOI: 10.1007/pl00012227] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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