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- Other research product . 2015Open Access IndonesianAuthors:Nasution, Rizka Muharrani;Nasution, Rizka Muharrani;Country: Indonesia
This research aims to determined the effect of promotions and discounts on purchasing decisions cosmetics brand The Body Shop Outlet Sun Plaza Medan. The type of this research is quantitative descriptive with survey method. Sample of this research is 100 consumers of The Body Shop Outlet Sun Plaza Medan, using proportionate stratified random sampling. The hypothesis in this research is tasted using multiple regression analysis and descriptive statistical analysis. The research showed that the promotions partial positive and significant influence on purchasing decisions, while the discounts are not positive and significant impact on the consumer purchasing decisions on brand cosmetic products The Body Shop Outlet Sun Plaza Medan. Simultaneously the influence of promotions and discounts positive and significant impact on purchasing decisions cosmetics brand The Body Shop Outlet Sun Plaza Medan. 110502228
Average/low popularityAverage/low popularityAverage/low influencePopularity: Citation-based measure reflecting the current impact.Average/low influenceInfluence: Citation-based measure reflecting the total impact. - Other research product . 2019Open Access EnglishAuthors:Fernández, Alfonso; Muñoz, Ariel; González-Reyes, Álvaro; Aguilera-Betti, Isabella; Toledo, Isadora; Puchi, Paulina; Sauchyn, David; Crespo, Sebastián; Frene, Cristian; Mundo, Ignacio; +2 moreFernández, Alfonso; Muñoz, Ariel; González-Reyes, Álvaro; Aguilera-Betti, Isabella; Toledo, Isadora; Puchi, Paulina; Sauchyn, David; Crespo, Sebastián; Frene, Cristian; Mundo, Ignacio; González, Mauro; Vignola, Raffaele;Project: EC | ECOADAPT (283163)
Streamflow in south-central Chile (SCC, ∼ 37–42∘ S) is vital for agriculture, forestry production, hydroelectricity, and human consumption. Recent drought episodes have generated hydrological deficits with damaging effects on these activities. This region is projected to undergo major reductions in water availability, concomitant with projected increases in water demand. However, the lack of long-term records hampers the development of accurate estimations of natural variability and trends. In order to provide more information on long-term streamflow variability and trends in SCC, here we report findings of an analysis of instrumental records and a tree-ring reconstruction of the summer streamflow of the Río Imperial (∼ 37∘ 40′ S–38∘ 50′ S). This is the first reconstruction in Chile targeted at this season. Results from the instrumental streamflow record (∼ 1940 onwards) indicated that the hydrological regime is fundamentally pluvial with a small snowmelt contribution during spring, and evidenced a decreasing trend, both for the summer and the full annual record. The reconstruction showed that streamflow below the average characterized the post-1980 period, with more frequent, but not more intense, drought episodes. We additionally found that the recent positive phase of the Southern Annular Mode has significantly influenced streamflow. These findings agree with previous studies, suggesting a robust regional signal and a shift to a new hydrological scenario. In this paper, we also discuss implications of these results for water managers and stakeholders; we provide rationale and examples that support the need for the incorporation of tree-ring reconstructions into water resources management.
Average/low popularityAverage/low popularityAverage/low influencePopularity: Citation-based measure reflecting the current impact.Average/low influenceInfluence: Citation-based measure reflecting the total impact. - Other research product . 2015Open Access EnglishAuthors:Alfaleh, F. Z.; Nugrahini, N.; Matičič, M.; Tolmane, I.; Alzaabi, M.; Hajarizadeh, B.; Valantinas, J.; Kim, D. Y.; Hunyady, B.; Abaalkhail, F.; +110 moreAlfaleh, F. Z.; Nugrahini, N.; Matičič, M.; Tolmane, I.; Alzaabi, M.; Hajarizadeh, B.; Valantinas, J.; Kim, D. Y.; Hunyady, B.; Abaalkhail, F.; Abbas, Z.; Abdou, A.; Abourached, A.; Al Braiki, F.; Al Hosani, F.; Al Jaberi, K.; Al Khatry, M.; Al Mulla, M. A.; Al Quraishi, H.; Al Rifai, A.; Al Serkal, Y.; Alam, A.; Alashgar, H. I.; Alavian, S. M.; Alawadhi, S.; Al-Dabal, L.; Aldins, P.; Alghamdi, A. S.; Al-Hakeem, R.; Aljumah, A. A.; Almessabi, A.; Alqutub, A. N.; Alswat, K. A.; Altraif, I.; Andrea, N.; Assiri, A. M.; Babatin, M. A.; Baqir, A.; Barakat, M. T.; Bergmann, O. M.; Bizri, A. R.; Chaudhry, A.; Choi, M. S.; Diab, T.; Djauzi, S.; El Hassan, E. S.; El Khoury, S.; Estes, C.; Fakhry, S.; Farooqi, J. I.; Fridjonsdottir, H.; Gani, R. A.; Ghafoor Khan, A.; Gheorghe, L.; Goldis, A.; Gottfredsson, M.; Gregorcic, S.; Gunter, J.; Hamid, S.; Han, K. H.; Hasan, I.; Hashim, A.; Horvath, G.; Husni, R.; Jafri, W.; Jeruma, A.; Jonasson, J. G.; Karlsdottir, B.; Kim, Y. S.; Koutoubi, Z.; Lesmana, L. A.; Liakina, V.; Lim, Y. S.; Löve, A.; Maimets, M.; Makara, M.; Malekzadeh, R.; Memon, M. S.; Merat, S.; Mokhbat, J. E.; Mourad, F. H.; Muljono, D. H.; Nawaz, A.; Olafsson, S.; Priohutomo, S.; Qureshi, H.; Rassam, P.; Razavi, H.; Razavi-Shearer, D.; Razavi-Shearer, K.; Rozentale, B.; Sadik, M.; Saeed, K.; Salamat, A.; Salupere, R.; Sanai, F. M.; Sanityoso Sulaiman, A.; Sayegh, R. A.; Schmelzer, J. D.; Sharara, A. I.; Sibley, A.; Siddiq, M.; Siddiqui, A. M.; Sigmundsdottir, G.; Sigurdardottir, B.; Speiciene, D.; Sulaiman, A.; Sultan, M. A.; Taha, M.; Tanaka, J.; Tarifi, H.; Tayyab, G.; Ud Din, M.; Umar, M.; Videčnik-Zorman, J.; Yaghi, C.; Yunihastuti, E.; Yusuf, M. A.; Zuberi, B. F.; Blach, S.;Country: Latvia
Publisher Copyright: © 2015 John Wiley & Sons Ltd. The hepatitis C virus (HCV) epidemic was forecasted through 2030 for 15 countries in Europe, the Middle East and Asia, and the relative impact of two scenarios was considered: increased treatment efficacy while holding the annual number of treated patients constant and increased treatment efficacy and an increased annual number of treated patients. Increasing levels of diagnosis and treatment, in combination with improved treatment efficacy, were critical for achieving substantial reductions in disease burden. A 90% reduction in total HCV infections within 15 years is feasible in most countries studied, but it required a coordinated effort to introduce harm reduction programmes to reduce new infections, screening to identify those already infected and treatment with high cure rate therapies. This suggests that increased capacity for screening and treatment will be critical in many countries. Birth cohort screening is a helpful tool for maximizing resources. Among European countries, the majority of patients were born between 1940 and 1985. A wider range of birth cohorts was seen in the Middle East and Asia (between 1925 and 1995). publishersversion Peer reviewed
Average/low popularityAverage/low popularityAverage/low influencePopularity: Citation-based measure reflecting the current impact.Average/low influenceInfluence: Citation-based measure reflecting the total impact. - Other research product . Other ORP type . 2016Open Access EnglishAuthors:Pacheco, Isabel; Freire, Isabel;Pacheco, Isabel; Freire, Isabel;
handle: 10451/33300
Publisher: AERACountry: PortugalIn this paper, it is set forth an action research case study, rooted in the principles of Multicultural Education and Teacher Education for Cultural Diversity and Inclusion. The study was developed in a Portuguese Public Secondary School with a cultural and social diverse school population, namely, immigrant students and those of the 2nd and 3rd generations of immigrant families from Portuguese-speaking African countries. The research was focused on a process of inservice teachers training and aimed teachers’ professional development for cultural diversity and inclusion. The research data analysis (interviews, field notes, teachers’ portfolios and reports of critical reflection) emphasised new conceptions on multicultural and inclusive education, changes in pedagogical practices, teachers’ reflexivity, students’ attitudes and behaviours, and school organisation. 2016 Annual Meeting of the American Educational Research Association, April 8-12, Washington Unidade de Investigação e Desenvolvimento em Educação e Formação da Universidade de Lisboa.
Average/low popularityAverage/low popularityAverage/low influencePopularity: Citation-based measure reflecting the current impact.Average/low influenceInfluence: Citation-based measure reflecting the total impact.add Add to ORCIDPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product. - Other research product . 2016Open Access LithuanianAuthors:Jakaitė, Dalia;Jakaitė, Dalia;
Veidas – ilgą ir turiningą tradiciją turintis literatūrinis vaizdinys, figūruojantis ir šiuolaikinėje lietuvių poezijoje. Išeities tašku šaltinių atrankai straipsnyje pasirinkus kūnišką, vizualiai atpažįstamą lyrinio subjekto ar jo sutinkamą kito veidą, šis fenomenas suvokiamas ir plačiau – pagal E. Lévino veido sampratą. Šiuolaikinės poezijos veido veidą (pastarasis – tapatybės prasme) straipsnyje siekiama atskleisti nagrinėjant skirtingų kartų poetų kūrybą, pradedant XX a. pabaiga (paskutinis dešimtmetis) ir baigiant naujausia kūryba: J. Vaičiūnaitės, J. Juškaičio, O. Baliukonytės, J. Jekentaitės, R. Mikutavičiaus, R. Stankevičiaus, S. Vilimaitės, S. Kandratavičiaus ir kitų autorių eilėraščiais. Tai, kad ne vienu atveju veidas įgyja religinį krikščioniškosios tradicijos akiratį, lemia atitinkamą teorinį straipsnio pagrindą. Teorinė straipsnio prieiga yra hermeneutinės metodologijos požiūriu formuluojamas teologinės (D. Miethas) ir filosofinės etikos (E. Lévinas) derinys. Etinio metafizikos reikšmingumo ieškoma poetinėse lyrinio subjekto, žmogiškojo ir dieviškojo kito, tradicinių šventųjų veido reprezentacijose.
Average/low popularityAverage/low popularityAverage/low influencePopularity: Citation-based measure reflecting the current impact.Average/low influenceInfluence: Citation-based measure reflecting the total impact. - Other research product . 2017Open Access EnglishAuthors:González, Angélica L.; Dézerald, Olivier; Marquet, Pablo A.; Romero, Gustavo Q.; Srivastava, Diane S.;González, Angélica L.; Dézerald, Olivier; Marquet, Pablo A.; Romero, Gustavo Q.; Srivastava, Diane S.;Publisher: Frontiers Media S.A.Project: NSERC
The niche concept is essential to understanding how biotic and abiotic factors regulate the abundance and distribution of living entities, and how these organisms utilize, affect and compete for resources in the environment. However, it has been challenging to determine the number and types of important niche dimensions. By contrast, there is strong mechanistic theory and empirical evidence showing that the elemental composition of living organisms shapes ecological systems, from organismal physiology to food web structure. We propose an approach based on a multidimensional elemental view of the ecological niche. Visualizing the stoichiometric composition of individuals in multivariate space permits quantification of niche dimensions within and across species. This approach expands on previous elemental characterizations of plant niches, and adapts metrics of niche volume, overlap and nestedness previously used to quantify isotopic niches. We demonstrate the applicability of the multidimensional stoichiometric niche using data on carbon, nitrogen, and phosphorus of terrestrial and freshwater communities composed by multiple trophic groups. First, we calculated the stoichiometric niche volumes occupied by terrestrial and freshwater food webs, by trophic groups, by individual species, and by individuals within species, which together give a measure of the extent of stoichiometric diversity within and across levels of organization. Then we evaluated complementarity between these stoichiometric niches, through metrics of overlap and nestedness. Our case study showed that vertebrates, invertebrates, and primary producers do not overlap in their stoichiometric niches, and that large areas of stoichiometric space are unoccupied by organisms. Within invertebrates, niche differences emerged between freshwater and terrestrial food webs, and between herbivores and non-herbivores (detritivores and predators). These niche differences were accompanied by changes in the covariance structure of the three elements, suggesting fundamental shifts in organismal physiology and/or structure. We also demonstrate the sensitivity of results to sample size, and suggest that representative sampling is better than rarefaction in characterizing the stoichiometric niche occupied by food webs. Overall, our approach demonstrates that stoichiometric traits provide a common currency to estimate the dimensionality of stoichiometric niches, and help reduce and rationalize the number of axis required to characterize communities.
Average/low popularityAverage/low popularityAverage/low influencePopularity: Citation-based measure reflecting the current impact.Average/low influenceInfluence: Citation-based measure reflecting the total impact.
6 Research products, page 1 of 1
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- Other research product . 2015Open Access IndonesianAuthors:Nasution, Rizka Muharrani;Nasution, Rizka Muharrani;Country: Indonesia
This research aims to determined the effect of promotions and discounts on purchasing decisions cosmetics brand The Body Shop Outlet Sun Plaza Medan. The type of this research is quantitative descriptive with survey method. Sample of this research is 100 consumers of The Body Shop Outlet Sun Plaza Medan, using proportionate stratified random sampling. The hypothesis in this research is tasted using multiple regression analysis and descriptive statistical analysis. The research showed that the promotions partial positive and significant influence on purchasing decisions, while the discounts are not positive and significant impact on the consumer purchasing decisions on brand cosmetic products The Body Shop Outlet Sun Plaza Medan. Simultaneously the influence of promotions and discounts positive and significant impact on purchasing decisions cosmetics brand The Body Shop Outlet Sun Plaza Medan. 110502228
Average/low popularityAverage/low popularityAverage/low influencePopularity: Citation-based measure reflecting the current impact.Average/low influenceInfluence: Citation-based measure reflecting the total impact. - Other research product . 2019Open Access EnglishAuthors:Fernández, Alfonso; Muñoz, Ariel; González-Reyes, Álvaro; Aguilera-Betti, Isabella; Toledo, Isadora; Puchi, Paulina; Sauchyn, David; Crespo, Sebastián; Frene, Cristian; Mundo, Ignacio; +2 moreFernández, Alfonso; Muñoz, Ariel; González-Reyes, Álvaro; Aguilera-Betti, Isabella; Toledo, Isadora; Puchi, Paulina; Sauchyn, David; Crespo, Sebastián; Frene, Cristian; Mundo, Ignacio; González, Mauro; Vignola, Raffaele;Project: EC | ECOADAPT (283163)
Streamflow in south-central Chile (SCC, ∼ 37–42∘ S) is vital for agriculture, forestry production, hydroelectricity, and human consumption. Recent drought episodes have generated hydrological deficits with damaging effects on these activities. This region is projected to undergo major reductions in water availability, concomitant with projected increases in water demand. However, the lack of long-term records hampers the development of accurate estimations of natural variability and trends. In order to provide more information on long-term streamflow variability and trends in SCC, here we report findings of an analysis of instrumental records and a tree-ring reconstruction of the summer streamflow of the Río Imperial (∼ 37∘ 40′ S–38∘ 50′ S). This is the first reconstruction in Chile targeted at this season. Results from the instrumental streamflow record (∼ 1940 onwards) indicated that the hydrological regime is fundamentally pluvial with a small snowmelt contribution during spring, and evidenced a decreasing trend, both for the summer and the full annual record. The reconstruction showed that streamflow below the average characterized the post-1980 period, with more frequent, but not more intense, drought episodes. We additionally found that the recent positive phase of the Southern Annular Mode has significantly influenced streamflow. These findings agree with previous studies, suggesting a robust regional signal and a shift to a new hydrological scenario. In this paper, we also discuss implications of these results for water managers and stakeholders; we provide rationale and examples that support the need for the incorporation of tree-ring reconstructions into water resources management.
Average/low popularityAverage/low popularityAverage/low influencePopularity: Citation-based measure reflecting the current impact.Average/low influenceInfluence: Citation-based measure reflecting the total impact. - Other research product . 2015Open Access EnglishAuthors:Alfaleh, F. Z.; Nugrahini, N.; Matičič, M.; Tolmane, I.; Alzaabi, M.; Hajarizadeh, B.; Valantinas, J.; Kim, D. Y.; Hunyady, B.; Abaalkhail, F.; +110 moreAlfaleh, F. Z.; Nugrahini, N.; Matičič, M.; Tolmane, I.; Alzaabi, M.; Hajarizadeh, B.; Valantinas, J.; Kim, D. Y.; Hunyady, B.; Abaalkhail, F.; Abbas, Z.; Abdou, A.; Abourached, A.; Al Braiki, F.; Al Hosani, F.; Al Jaberi, K.; Al Khatry, M.; Al Mulla, M. A.; Al Quraishi, H.; Al Rifai, A.; Al Serkal, Y.; Alam, A.; Alashgar, H. I.; Alavian, S. M.; Alawadhi, S.; Al-Dabal, L.; Aldins, P.; Alghamdi, A. S.; Al-Hakeem, R.; Aljumah, A. A.; Almessabi, A.; Alqutub, A. N.; Alswat, K. A.; Altraif, I.; Andrea, N.; Assiri, A. M.; Babatin, M. A.; Baqir, A.; Barakat, M. T.; Bergmann, O. M.; Bizri, A. R.; Chaudhry, A.; Choi, M. S.; Diab, T.; Djauzi, S.; El Hassan, E. S.; El Khoury, S.; Estes, C.; Fakhry, S.; Farooqi, J. I.; Fridjonsdottir, H.; Gani, R. A.; Ghafoor Khan, A.; Gheorghe, L.; Goldis, A.; Gottfredsson, M.; Gregorcic, S.; Gunter, J.; Hamid, S.; Han, K. H.; Hasan, I.; Hashim, A.; Horvath, G.; Husni, R.; Jafri, W.; Jeruma, A.; Jonasson, J. G.; Karlsdottir, B.; Kim, Y. S.; Koutoubi, Z.; Lesmana, L. A.; Liakina, V.; Lim, Y. S.; Löve, A.; Maimets, M.; Makara, M.; Malekzadeh, R.; Memon, M. S.; Merat, S.; Mokhbat, J. E.; Mourad, F. H.; Muljono, D. H.; Nawaz, A.; Olafsson, S.; Priohutomo, S.; Qureshi, H.; Rassam, P.; Razavi, H.; Razavi-Shearer, D.; Razavi-Shearer, K.; Rozentale, B.; Sadik, M.; Saeed, K.; Salamat, A.; Salupere, R.; Sanai, F. M.; Sanityoso Sulaiman, A.; Sayegh, R. A.; Schmelzer, J. D.; Sharara, A. I.; Sibley, A.; Siddiq, M.; Siddiqui, A. M.; Sigmundsdottir, G.; Sigurdardottir, B.; Speiciene, D.; Sulaiman, A.; Sultan, M. A.; Taha, M.; Tanaka, J.; Tarifi, H.; Tayyab, G.; Ud Din, M.; Umar, M.; Videčnik-Zorman, J.; Yaghi, C.; Yunihastuti, E.; Yusuf, M. A.; Zuberi, B. F.; Blach, S.;Country: Latvia
Publisher Copyright: © 2015 John Wiley & Sons Ltd. The hepatitis C virus (HCV) epidemic was forecasted through 2030 for 15 countries in Europe, the Middle East and Asia, and the relative impact of two scenarios was considered: increased treatment efficacy while holding the annual number of treated patients constant and increased treatment efficacy and an increased annual number of treated patients. Increasing levels of diagnosis and treatment, in combination with improved treatment efficacy, were critical for achieving substantial reductions in disease burden. A 90% reduction in total HCV infections within 15 years is feasible in most countries studied, but it required a coordinated effort to introduce harm reduction programmes to reduce new infections, screening to identify those already infected and treatment with high cure rate therapies. This suggests that increased capacity for screening and treatment will be critical in many countries. Birth cohort screening is a helpful tool for maximizing resources. Among European countries, the majority of patients were born between 1940 and 1985. A wider range of birth cohorts was seen in the Middle East and Asia (between 1925 and 1995). publishersversion Peer reviewed
Average/low popularityAverage/low popularityAverage/low influencePopularity: Citation-based measure reflecting the current impact.Average/low influenceInfluence: Citation-based measure reflecting the total impact. - Other research product . Other ORP type . 2016Open Access EnglishAuthors:Pacheco, Isabel; Freire, Isabel;Pacheco, Isabel; Freire, Isabel;
handle: 10451/33300
Publisher: AERACountry: PortugalIn this paper, it is set forth an action research case study, rooted in the principles of Multicultural Education and Teacher Education for Cultural Diversity and Inclusion. The study was developed in a Portuguese Public Secondary School with a cultural and social diverse school population, namely, immigrant students and those of the 2nd and 3rd generations of immigrant families from Portuguese-speaking African countries. The research was focused on a process of inservice teachers training and aimed teachers’ professional development for cultural diversity and inclusion. The research data analysis (interviews, field notes, teachers’ portfolios and reports of critical reflection) emphasised new conceptions on multicultural and inclusive education, changes in pedagogical practices, teachers’ reflexivity, students’ attitudes and behaviours, and school organisation. 2016 Annual Meeting of the American Educational Research Association, April 8-12, Washington Unidade de Investigação e Desenvolvimento em Educação e Formação da Universidade de Lisboa.
Average/low popularityAverage/low popularityAverage/low influencePopularity: Citation-based measure reflecting the current impact.Average/low influenceInfluence: Citation-based measure reflecting the total impact.add Add to ORCIDPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product. - Other research product . 2016Open Access LithuanianAuthors:Jakaitė, Dalia;Jakaitė, Dalia;
Veidas – ilgą ir turiningą tradiciją turintis literatūrinis vaizdinys, figūruojantis ir šiuolaikinėje lietuvių poezijoje. Išeities tašku šaltinių atrankai straipsnyje pasirinkus kūnišką, vizualiai atpažįstamą lyrinio subjekto ar jo sutinkamą kito veidą, šis fenomenas suvokiamas ir plačiau – pagal E. Lévino veido sampratą. Šiuolaikinės poezijos veido veidą (pastarasis – tapatybės prasme) straipsnyje siekiama atskleisti nagrinėjant skirtingų kartų poetų kūrybą, pradedant XX a. pabaiga (paskutinis dešimtmetis) ir baigiant naujausia kūryba: J. Vaičiūnaitės, J. Juškaičio, O. Baliukonytės, J. Jekentaitės, R. Mikutavičiaus, R. Stankevičiaus, S. Vilimaitės, S. Kandratavičiaus ir kitų autorių eilėraščiais. Tai, kad ne vienu atveju veidas įgyja religinį krikščioniškosios tradicijos akiratį, lemia atitinkamą teorinį straipsnio pagrindą. Teorinė straipsnio prieiga yra hermeneutinės metodologijos požiūriu formuluojamas teologinės (D. Miethas) ir filosofinės etikos (E. Lévinas) derinys. Etinio metafizikos reikšmingumo ieškoma poetinėse lyrinio subjekto, žmogiškojo ir dieviškojo kito, tradicinių šventųjų veido reprezentacijose.
Average/low popularityAverage/low popularityAverage/low influencePopularity: Citation-based measure reflecting the current impact.Average/low influenceInfluence: Citation-based measure reflecting the total impact. - Other research product . 2017Open Access EnglishAuthors:González, Angélica L.; Dézerald, Olivier; Marquet, Pablo A.; Romero, Gustavo Q.; Srivastava, Diane S.;González, Angélica L.; Dézerald, Olivier; Marquet, Pablo A.; Romero, Gustavo Q.; Srivastava, Diane S.;Publisher: Frontiers Media S.A.Project: NSERC
The niche concept is essential to understanding how biotic and abiotic factors regulate the abundance and distribution of living entities, and how these organisms utilize, affect and compete for resources in the environment. However, it has been challenging to determine the number and types of important niche dimensions. By contrast, there is strong mechanistic theory and empirical evidence showing that the elemental composition of living organisms shapes ecological systems, from organismal physiology to food web structure. We propose an approach based on a multidimensional elemental view of the ecological niche. Visualizing the stoichiometric composition of individuals in multivariate space permits quantification of niche dimensions within and across species. This approach expands on previous elemental characterizations of plant niches, and adapts metrics of niche volume, overlap and nestedness previously used to quantify isotopic niches. We demonstrate the applicability of the multidimensional stoichiometric niche using data on carbon, nitrogen, and phosphorus of terrestrial and freshwater communities composed by multiple trophic groups. First, we calculated the stoichiometric niche volumes occupied by terrestrial and freshwater food webs, by trophic groups, by individual species, and by individuals within species, which together give a measure of the extent of stoichiometric diversity within and across levels of organization. Then we evaluated complementarity between these stoichiometric niches, through metrics of overlap and nestedness. Our case study showed that vertebrates, invertebrates, and primary producers do not overlap in their stoichiometric niches, and that large areas of stoichiometric space are unoccupied by organisms. Within invertebrates, niche differences emerged between freshwater and terrestrial food webs, and between herbivores and non-herbivores (detritivores and predators). These niche differences were accompanied by changes in the covariance structure of the three elements, suggesting fundamental shifts in organismal physiology and/or structure. We also demonstrate the sensitivity of results to sample size, and suggest that representative sampling is better than rarefaction in characterizing the stoichiometric niche occupied by food webs. Overall, our approach demonstrates that stoichiometric traits provide a common currency to estimate the dimensionality of stoichiometric niches, and help reduce and rationalize the number of axis required to characterize communities.
Average/low popularityAverage/low popularityAverage/low influencePopularity: Citation-based measure reflecting the current impact.Average/low influenceInfluence: Citation-based measure reflecting the total impact.