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| Registros recuperados: 31 | |
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| Mclean, Matthew; Auber, Arnaud; Graham, Nicholas A J; Houk, Peter; Villéger, Sébastien; Violle, Cyrille; Thuiller, Wilfried; Wilson, Shaun K.; Mouillot, David. |
| ‘Functional’ diversity is believed to influence ecosystem dynamics through links between organismal traits and ecosystem processes. Theory predicts that key traits and high trait redundancy – large species richness and abundance supporting the same traits – can buffer communities against environmental disturbances. While experiments and data from simple ecological systems lend support, large‐scale evidence from diverse, natural systems under major disturbance is lacking. Here, using long‐term data from both temperate (English Channel) and tropical (Seychelles Islands) fishes, we show that sensitivity to disturbance depends on communities’ initial trait structure and initial trait redundancy. In both ecosystems, we found that increasing dominance by... |
| Tipo: Text |
Palavras-chave: Climate change; Coral reefs; Diversity stability; Ecological traits; Ecosystem functioning; English Channel; Functional diversity. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00490/60184/63525.pdf |
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| Murgier, Juliette; Mclean, Matthew; Maire, Anthony; Mouillot, David; Loiseau, Nicolas; Munoz, François; Violle, Cyrille; Auber, Arnaud. |
| Functionally distinct species (i.e. species with unique trait combinations in the community) can support important ecological roles and contribute disproportionately to ecosystem functioning. Yet, how functionally distinct species have responded to recent climate change and human exploitation has been widely overlooked. Here, using ecological traits and long-term fish data in the North Sea, we identified functionally distinct and functionally common species, and evaluated their spatial andtemporaldynamics in relation to environmental variables and fishing pressure. Functionally distinct specieswere characterized by late sexualmaturity, few, large offspring, and high parental care,many being sharks and skates that play critical roles in structuring food... |
| Tipo: Text |
Palavras-chave: Functional diversity; Ecological trait; Fisheries; Global change; Ecosystem functioning; Conservation. |
| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00668/78019/80270.pdf |
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| Rios, Mary Naves da Silva; Sousa-Silva, José Carlos. |
| This study aimed to evaluate the formation of functional groups, in 1994 and 2012, in two areas of savanna with different fire history in Planaltina, Federal District, Brazil. In the Area 1 biennial burnings were applied in August 1988, 1990 and 1992; there was fire protection until July 1994 in the Area 2, the control area. Accidental fire occurred in both areas in August 1994, but from September 1994 to 2012 they were protected. These analysis included individuals with abundance ≥ 5 using the unweighted pair group method with arithmetic mean (UPGMA). The groups were defined according to the following attributes: dispersal and pollination syndromes, leaf phenology, life form, type of bark and ability to sprouting after fire. Both areas presented... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Functional diversity; Sprouting; Forest rehabilitation Ciências agrárias; Recursos Florestais; Botânica; Ecologia Diversidade funcional; Rebrota; Reabilitação florestal. |
| Ano: 2017 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1386 |
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| Malysz,Marcelo; Müller,Sandra Cristina; Milesi,Silvia Vendruscolo; Santos,Anita Stival dos; Overbeck,Gerhard Ernst. |
| ABSTRACT A functional perspective of tree communities is helpful for understanding forest dynamics, especially vegetation recovery after other land uses. Knowledge about ecological filters and survival strategies of trees are also important for the restoration of degraded areas. This study aimed to evaluate the functional composition and structure of adult and regenerative components of natural Araucaria forests, Araucaria plantations and plantations of exotic Pinus in subtropical southern Brazil. Differences in functional diversity and functional richness, and in community weighted mean trait values, including leaf traits and reproductive traits, were analyzed. RLQ analysis was used to assess the association between community structure, plant traits and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Araucaria angustifolia; Atlantic Forest; Forest dynamics; Functional diversity; Functional patterns; Pinus sp.; Succession; Tree plantations. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062019000400777 |
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| Fernandes,Camila Cesário; Kishi,Luciano Takeshi; Lopes,Erica Mendes; Omori,Wellington Pine; Souza,Jackson Antonio Marcondes de; Alves,Lucia Maria Carareto; Lemos,Eliana Gertrudes de Macedo. |
| Abstract Human activities on the Earth's surface change the landscape of natural ecosystems. Mining practices are one of the most severe human activities, drastically altering the chemical, physical and biological properties of the soil environment. Bacterial communities in soil play an important role in the maintenance of ecological relationships. This work shows bacterial diversity, metabolic repertoire and physiological behavior in five ecosystems samples with different levels of impact. These ecosystems belong to a historical area in Iron Quadrangle, Minas Gerais, Brazil, which suffered mining activities until its total depletion without recovery since today. The results revealed Proteobacteria as the most predominant phylum followed by Acidobacteria,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Iron mine; Bacterial diversity; Functional diversity; Brazilian soils. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000300489 |
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| Registros recuperados: 31 | |
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