Historical stability promoted higher functional specialization and originality in Neotropical stream fish assemblages
Aim: Disturbances are events that influence the structure of biological assemblages, yet how historical disturbances have affected the functional structure of recent assemblages is still poorly known. We used species functional traits to investigate the effects of historical disturbances, such as pa...
| Autor principal: | Rodrigues-Filho, Carlos Alberto de Sousa |
|---|---|
| Outros Autores: | Leitão, Rafael Pereira, Zuanon, Jansen, Sánchez-Botero, Jorge Iván, Baccaro, Fabricio Beggiato |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Journal of Biogeography
2020
|
| Assuntos: | |
| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/16914 |
| id |
oai:repositorio:1-16914 |
|---|---|
| recordtype |
dspace |
| spelling |
oai:repositorio:1-16914 Historical stability promoted higher functional specialization and originality in Neotropical stream fish assemblages Rodrigues-Filho, Carlos Alberto de Sousa Leitão, Rafael Pereira Zuanon, Jansen Sánchez-Botero, Jorge Iván Baccaro, Fabricio Beggiato Adaptation Aridification Biome Caatinga Climate Change Community Structure Environmental Conditions Extinction Fish Freshwater Environment Historical Geography Ichthyofauna Neotropical Region Specialization Stream Amazon Basin Brasil Aim: Disturbances are events that influence the structure of biological assemblages, yet how historical disturbances have affected the functional structure of recent assemblages is still poorly known. We used species functional traits to investigate the effects of historical disturbances, such as past climate change (aridification), on the current structure of stream fish assemblages. Location: Amazon Basin and Brazilian Northeast streams. Methods: We used measures of functional specialization and originality to assess the effects of historical disturbances on the structure of fish assemblages in streams with similar local environmental conditions in each biome (Amazonia and Caatinga). For this, we measured 15 traits related to locomotion, feeding and habitat use for each species sampled. We then compared the functional structure of each assemblage expressed as functional richness (FRic) and evenness (FEve) between biomes. We also used structured and random simulations of species extinctions to identify the influence of the loss of original and specialized species due to historical disturbance. Results: We found high levels of functional specialization in Amazonia (historically more stable) and redundancy in Caatinga (higher frequency of historical disturbances) regional assemblages, regardless of the inter-biome differences in species richness. These results were also detected in local assemblages, suggesting that the effect of historical disturbances influences the structure of fish assemblages, both at small and large spatial scales. Main conclusions: The historical stability in Amazonian fish assemblages may have favoured a higher taxonomic and FRic, as well as greater functional specialization and originality, compared to Caatinga assemblages. Our results reinforce the importance of understanding and evaluating the evolutionary history of ecosystems in order to describe the current functional structure of species assemblages. © 2018 John Wiley & Sons Ltd 2020-06-15T21:37:15Z 2020-06-15T21:37:15Z 2018 Artigo https://repositorio.inpa.gov.br/handle/1/16914 10.1111/jbi.13205 en Volume 45, Número 6, Pags. 1345-1354 Restrito Journal of Biogeography |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Adaptation Aridification Biome Caatinga Climate Change Community Structure Environmental Conditions Extinction Fish Freshwater Environment Historical Geography Ichthyofauna Neotropical Region Specialization Stream Amazon Basin Brasil |
| spellingShingle |
Adaptation Aridification Biome Caatinga Climate Change Community Structure Environmental Conditions Extinction Fish Freshwater Environment Historical Geography Ichthyofauna Neotropical Region Specialization Stream Amazon Basin Brasil Rodrigues-Filho, Carlos Alberto de Sousa Historical stability promoted higher functional specialization and originality in Neotropical stream fish assemblages |
| topic_facet |
Adaptation Aridification Biome Caatinga Climate Change Community Structure Environmental Conditions Extinction Fish Freshwater Environment Historical Geography Ichthyofauna Neotropical Region Specialization Stream Amazon Basin Brasil |
| description |
Aim: Disturbances are events that influence the structure of biological assemblages, yet how historical disturbances have affected the functional structure of recent assemblages is still poorly known. We used species functional traits to investigate the effects of historical disturbances, such as past climate change (aridification), on the current structure of stream fish assemblages. Location: Amazon Basin and Brazilian Northeast streams. Methods: We used measures of functional specialization and originality to assess the effects of historical disturbances on the structure of fish assemblages in streams with similar local environmental conditions in each biome (Amazonia and Caatinga). For this, we measured 15 traits related to locomotion, feeding and habitat use for each species sampled. We then compared the functional structure of each assemblage expressed as functional richness (FRic) and evenness (FEve) between biomes. We also used structured and random simulations of species extinctions to identify the influence of the loss of original and specialized species due to historical disturbance. Results: We found high levels of functional specialization in Amazonia (historically more stable) and redundancy in Caatinga (higher frequency of historical disturbances) regional assemblages, regardless of the inter-biome differences in species richness. These results were also detected in local assemblages, suggesting that the effect of historical disturbances influences the structure of fish assemblages, both at small and large spatial scales. Main conclusions: The historical stability in Amazonian fish assemblages may have favoured a higher taxonomic and FRic, as well as greater functional specialization and originality, compared to Caatinga assemblages. Our results reinforce the importance of understanding and evaluating the evolutionary history of ecosystems in order to describe the current functional structure of species assemblages. © 2018 John Wiley & Sons Ltd |
| format |
Artigo |
| author |
Rodrigues-Filho, Carlos Alberto de Sousa |
| author2 |
Leitão, Rafael Pereira Zuanon, Jansen Sánchez-Botero, Jorge Iván Baccaro, Fabricio Beggiato |
| author2Str |
Leitão, Rafael Pereira Zuanon, Jansen Sánchez-Botero, Jorge Iván Baccaro, Fabricio Beggiato |
| title |
Historical stability promoted higher functional specialization and originality in Neotropical stream fish assemblages |
| title_short |
Historical stability promoted higher functional specialization and originality in Neotropical stream fish assemblages |
| title_full |
Historical stability promoted higher functional specialization and originality in Neotropical stream fish assemblages |
| title_fullStr |
Historical stability promoted higher functional specialization and originality in Neotropical stream fish assemblages |
| title_full_unstemmed |
Historical stability promoted higher functional specialization and originality in Neotropical stream fish assemblages |
| title_sort |
historical stability promoted higher functional specialization and originality in neotropical stream fish assemblages |
| publisher |
Journal of Biogeography |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/16914 |
| _version_ |
1787142760341438464 |
| score |
11.755432 |