Manuel A. S. Graça

11.3k total citations · 1 hit paper
122 papers, 6.3k citations indexed

About

Manuel A. S. Graça is a scholar working on Ecology, Nature and Landscape Conservation and Environmental Chemistry. According to data from OpenAlex, Manuel A. S. Graça has authored 122 papers receiving a total of 6.3k indexed citations (citations by other indexed papers that have themselves been cited), including 107 papers in Ecology, 43 papers in Nature and Landscape Conservation and 29 papers in Environmental Chemistry. Recurrent topics in Manuel A. S. Graça's work include Freshwater macroinvertebrate diversity and ecology (102 papers), Fish Ecology and Management Studies (34 papers) and Aquatic Invertebrate Ecology and Behavior (27 papers). Manuel A. S. Graça is often cited by papers focused on Freshwater macroinvertebrate diversity and ecology (102 papers), Fish Ecology and Management Studies (34 papers) and Aquatic Invertebrate Ecology and Behavior (27 papers). Manuel A. S. Graça collaborates with scholars based in Portugal, Brazil and Spain. Manuel A. S. Graça's co-authors include Verónica Ferreira, Cristina Canhoto, Vladislav Gulis, Maria João Feio, Manuela Abelho, Feli× Bärlocher, Mark O. Gessner, Marcos Callisto, José Francisco Gonçalves and Andrea C. Encalada and has published in prestigious journals such as SHILAP Revista de lepidopterología, The Science of The Total Environment and Water Research.

In The Last Decade

Manuel A. S. Graça

122 papers receiving 6.0k citations

Hit Papers

The Role of Invertebrates on Leaf Litter Decomposition in... 2001 2026 2009 2017 2001 200 400 600
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. The Role of Invertebrates on Leaf Litter Decomposition in Streams - a Review
    2001 619 citations Manuel A. S. Graça International Review of Hydrobiology profile →

Peers

Manuel A. S. Graça
Christoph D. Matthaei New Zealand
Éric Chauvet France
Amy D. Rosemond United States
Joseph M. Culp Canada
Nikolai Friberg Denmark
Jeremy Biggs United Kingdom
Keller Suberkropp United States
Patrick D. Armitage United Kingdom
Michael J. Winterbourn New Zealand
E. F. Benfield United States
Christoph D. Matthaei New Zealand
Manuel A. S. Graça
Citations per year, relative to Manuel A. S. Graça Manuel A. S. Graça (= 1×) peers Christoph D. Matthaei

Countries citing papers authored by Manuel A. S. Graça

Since Specialization
Citations

This map shows the geographic impact of Manuel A. S. Graça's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Manuel A. S. Graça with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Manuel A. S. Graça more than expected).

Fields of papers citing papers by Manuel A. S. Graça

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Manuel A. S. Graça. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Manuel A. S. Graça. The network helps show where Manuel A. S. Graça may publish in the future.

Co-authorship network of co-authors of Manuel A. S. Graça

This figure shows the co-authorship network connecting the top 25 collaborators of Manuel A. S. Graça. A scholar is included among the top collaborators of Manuel A. S. Graça based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Manuel A. S. Graça. Manuel A. S. Graça is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Ferreira, Verónica, et al.. (2021). Invasion of temperate deciduous broadleaf forests by N‐fixing tree species – consequences for stream ecosystems. Biological reviews/Biological reviews of the Cambridge Philosophical Society. 96(3). 877–902. 27 indexed citations
2.
Pérez, Javier, Verónica Ferreira, Manuel A. S. Graça, & Luz Boyero. (2021). Litter Quality Is a Stronger Driver than Temperature of Early Microbial Decomposition in Oligotrophic Streams: a Microcosm Study. Microbial Ecology. 82(4). 897–908. 15 indexed citations
3.
Graça, Manuel A. S., et al.. (2019). Bioaccumulation and Dispersion of Uranium by Freshwater Organisms. Archives of Environmental Contamination and Toxicology. 78(2). 254–266. 12 indexed citations
4.
Serra, Sónia R. Q., Manuel A. S. Graça, Sylvain Dolédec, & Maria João Feio. (2017). Discriminating permanent from temporary rivers with traits of chironomid genera. Annales de Limnologie - International Journal of Limnology. 53. 161–174. 14 indexed citations
5.
Serra, Sónia R. Q., Manuel A. S. Graça, Sylvain Dolédec, & Maria João Feio. (2017). Chironomidae traits and life history strategies as indicators of anthropogenic disturbance. Environmental Monitoring and Assessment. 189(7). 326–326. 63 indexed citations
6.
Graça, Manuel A. S., et al.. (2017). Nutrient enrichment in water more than in leaves affects aquatic microbial litter processing. Oecologia. 184(2). 555–568. 35 indexed citations
7.
Feio, Maria João, Ana Raquel Calapez, Carmen L. Elias, et al.. (2016). The paradox of expert judgment in rivers ecological monitoring. Journal of Environmental Management. 184(Pt 3). 609–616. 19 indexed citations
8.
Ferreira, Verónica & Manuel A. S. Graça. (2016). Effects of whole-stream nitrogen enrichment and litter species mixing on litter decomposition and associated fungi. Limnologica. 58. 69–77. 19 indexed citations
9.
Medeiros, Adriana O., Marcos Callisto, Manuel A. S. Graça, et al.. (2015). Microbial colonisation and litter decomposition in a Cerrado stream are limited by low dissolved nutrient concentrations. Limnetica. 34(2). 283–292. 10 indexed citations
10.
Graça, Manuel A. S., Verónica Ferreira, Cristina Canhoto, et al.. (2015). A conceptual model of litter breakdown in low order streams. International Review of Hydrobiology. 100(1). 1–12. 168 indexed citations
11.
Feio, Maria João, Sylvain Dolédec, & Manuel A. S. Graça. (2014). Human disturbance affects the long-term spatial synchrony of freshwater invertebrate communities. Environmental Pollution. 196. 300–308. 34 indexed citations
12.
Callisto, Marcos & Manuel A. S. Graça. (2013). The quality and availability of fine particulate organic matter for collector species in headwater streams. International Review of Hydrobiology. 98(3). 132–140. 25 indexed citations
13.
Graça, Manuel A. S. & José Manuel Poquet. (2013). Do climate and soil influence phenotypic variability in leaf litter, microbial decomposition and shredder consumption?. Oecologia. 174(3). 1021–1032. 41 indexed citations
14.
Graça, Manuel A. S., et al.. (2007). Testing the Use of the Water Milfoil (Myriophyllum spicatum L.) in Laboratory Toxicity Assays. Bulletin of Environmental Contamination and Toxicology. 78(6). 421–426. 14 indexed citations
15.
Canhoto, Cristina & Manuel A. S. Graça. (2006). Leaf litter processing in low order streams. Limnetica. 25(1). 1–10. 80 indexed citations
16.
Ferreira, Verónica, Vladislav Gulis, & Manuel A. S. Graça. (2006). Whole-stream nitrate addition affects litter decomposition and associated fungi but not invertebrates. Oecologia. 149(4). 718–729. 192 indexed citations
17.
Graça, Manuel A. S., et al.. (2002). In situ tests for water quality assessment: a case study in Pampean rivers. Water Research. 36(16). 4033–4040. 36 indexed citations
18.
Graça, Manuel A. S., et al.. (1996). The effects of a basic effluent on macroinvertebrate community structure in a temporary Mediterranean river. Environmental Pollution. 94(3). 301–307. 64 indexed citations
19.
Graça, Manuel A. S., Lorraine Maltby, & Peter Calow. (1993). Importance of fungi in the diet of Gammarus pulex and Asellus aquaticus. Oecologia. 96(3). 304–309. 123 indexed citations
20.
Graça, Manuel A. S., Lorraine Maltby, & Peter Calow. (1993). Importance of fungi in the diet of Gammarus pulex and Asellus aquaticus I: feeding strategies. Oecologia. 93(1). 139–144. 134 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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