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- Author:
- Bruna Claudia S. Jorge; Felícia M. Fischer; Vanderlei J. Debastiani; Daniela Hoss; Valério D. Pillar; Bruna Winck
- Source:
- Pedobiologia 2022 v.90 pp. 150786
- ISSN:
- 0031-4056
- Subject:
- Collembola; aboveground biomass; biodiversity; biomass production; defoliation; detritivores; ecosystems; grasslands; microclimate; plant communities; soil biota; Brazil
- Abstract:
- ... The links between vegetation and soil biota are responsible for a variety of ecosystem processes and services that can be affected by grazing. In this study, we aimed to evaluate the effects of grazing frequency in natural grasslands’ biodiversity (plant and collembola communities) and on ecosystem processes (decomposition and biomass accumulation). For so, we carried out a clipping experiment ove ...
- DOI:
- 10.1016/j.pedobi.2021.150786
- https://doi.org/10.1016/j.pedobi.2021.150786
- Author:
- Fabiane Barreto Souza; Alexandre Clistenes de Alcantara Santos; André Teixeira da Silva
- Source:
- Studies on neotropical fauna and environment 2022 v.57 no.1 pp. 29-42
- ISSN:
- 1744-5140
- Subject:
- Neotropics; algivores; detritivores; diet; fauna; fish; piscivores; sand; stomach; streams; temperature; watersheds; Brazil
- Abstract:
- ... Understand how environmental factors correlate with the trophic structure of fish communities is a fundamental step to allow designing models for the functioning of stream ecosystems and planning conservation actions. Thus, this study aims to characterize the trophic structure of fish communities of streams of the Contas River basin and evaluate the relationships between local environmental factor ...
- DOI:
- 10.1080/01650521.2020.1809610
- https://doi.org/10.1080/01650521.2020.1809610
- Author:
- Fabio Edir Amaral Albuquerque; Carlos Herrero-Latorre; Marta Miranda; Raimundo Alves Barrêto Júnior; Francisco Leonardo Costa Oliveira; Maria Cláudia Araripe Sucupira; Enrico Lippi Ortolani; Antonio Humberto Hamad Minervino; Marta López-Alonso
- Source:
- Environmental pollution 2021 v.283 no. pp. 117024
- ISSN:
- 0269-7491
- Subject:
- Acari; Cichla temensis; Pterygoplichthys pardalis; aquatic ecosystems; aquatic environment; arsenic; carnivores; chemometrics; deforestation; detritivores; environmental monitoring; food chain; freshwater fish; intensive farming; liver; mercury; mountains; muscles; pollution; rivers; sediments; toxicity; Amazon River; Andes region; Brazil; Guyana
- Abstract:
- ... Brazilian soils can have high concentrations of toxic elements, mainly mercury (Hg) and arsenic (As), metals also associated with anthropogenic activities (e.g. intensive agriculture, mining, deforestation and hydroelectric plants). This can lead to large amounts of these elements reaching and/or being mobilized in the aquatic ecosystem, which constitutes a serious threat to the environment and to ...
- DOI:
- 10.1016/j.envpol.2021.117024
- https://doi.org/10.1016/j.envpol.2021.117024
- Author:
- Lucas Milani Pereira; Bárbara Dunck; Evanilde Benedito
- Source:
- Biotropica 2021 v.53 no.2 pp. 536-547
- ISSN:
- 0006-3606
- Subject:
- Neotropics; Poecilia reticulata; detritivores; ecological function; ecosystems; fish; functional diversity; habitat preferences; head; humans; land use; mouth; occupations; reproduction; rivers; streams; Brazil
- Abstract:
- ... Evaluation of traits and functional diversity make assessments more robust when determining the nature and strength of the relationship between species and ecosystem processes. We investigated how anthropic interference and physical and limnological characteristics of streams changed fish functional trait distribution and their functional diversity in Neotropical streams located in Southern Brazil ...
- DOI:
- 10.1111/btp.12896
- https://doi.org/10.1111/btp.12896
- Author:
- T.T. Tesser; C.M. da Rocha; D. Castro
- Source:
- Environmental nanotechnology, monitoring & management 2021 v.16 pp. 100496
- ISSN:
- 2215-1532
- Subject:
- Geophagus brasiliensis; Hoplias malabaricus; Loricariichthys anus; Oligosarcus; administrative management; bioaccumulation; cadmium; carnivores; chromium; detritivores; freshwater; freshwater fish; heavy metals; juveniles; lead; liver; mercury; occupations; toxicity; water pollution; watersheds; Brazil
- Abstract:
- ... Heavy metals are different from other toxic agents because they are not metabolized, destroyed and excreted. They reach water resources mainly through anthropic action, be it agricultural, industrial, occupational, among others. Fish, often exposed to such contamination, are an important source of food in the Tramandaí River Basin (TRB) and stand out for their commercial importance. Increased acti ...
- DOI:
- 10.1016/j.enmm.2021.100496
- https://doi.org/10.1016/j.enmm.2021.100496
- Author:
- Anne K.S. Justino; Véronique Lenoble; Latifa Pelage; Guilherme V.B. Ferreira; Rafaela Passarone; Thierry Frédou; Flávia Lucena Frédou
- Source:
- Regional studies in marine science 2021 v.45 pp. 101857
- ISSN:
- 2352-4855
- Subject:
- Bairdiella; Centropomus; Gobionellus; detritivores; digestion; digestive system; estuaries; human health; ingestion; marine science; microplastics; piscivores; sediments; Brazil
- Abstract:
- ... Marine ecosystems are reported to be contaminated by microplastics (MPs) (< 5 mm); however, the ecological mechanisms involved in the ingestion of debris by marine organisms are relatively unknown. By developing and optimising an appropriate protocol of gut digestion for fish species, this study explores a tropical estuarine environment to unriddle the processes responsible for the different inges ...
- DOI:
- 10.1016/j.rsma.2021.101857
- https://doi.org/10.1016/j.rsma.2021.101857
- Author:
- Jean Carlos Dantas de Oliveira; Jonnata Fernandes de Oliveira; Alexandre de Oliveira Marques; Danielle Peretti; Rodrigo Silva da Costa; José Luís Costa Novaes
- Source:
- Ecology of freshwater fish 2021 v.30 no.2 pp. 234-243
- ISSN:
- 0906-6691
- Subject:
- detritivores; detritus; diet; freshwater fish; rivers; sediments; semiarid zones; t-test; Brazil
- Abstract:
- ... The objectives of this study were to investigate the food resources consumed by two species of detritivorous fishes along the Apodi‐Mossoró River reservoir cascade system, located in the tropical semi‐arid region of Brazil. The hypotheses tested were as follows: (a) the diet, niche breadth and niche overlap of the species in the reservoirs downstream of the cascade are different due to the blockag ...
- DOI:
- 10.1111/eff.12579
- https://doi.org/10.1111/eff.12579
- Author:
- Maíra S. A. Rocha; Robson C. Silva; José C. E. Santos; Marianne Schorer; Maria P. Nascimento; Marcelo M. Pedreira
- Source:
- Journal of fish biology 2020 v.96 no.1 pp. 49-58
- ISSN:
- 0022-1112
- Subject:
- Lophiosilurus alexandri; Prochilodus argenteus; body size; carnivores; detritivores; epithelium; gonads; histology; inflation; intestines; larval development; mouth; ontogeny; pigmentation; rivers; sexual development; stomach; swim bladder; Brazil
- Abstract:
- ... The aim of the present study was to perform comparative histological analyses of the ontogenetic development of two fish species endemic to the São Francisco River in Brazil: Prochilodus argenteus and Lophiosilurus alexandri. Histological analyses were performed every 24 h from the moment of hatching until 14 days post‐hatching (dph) for the observation of larval development and until 39 dph for t ...
- DOI:
- 10.1111/jfb.14185
- https://doi.org/10.1111/jfb.14185
- Author:
- Igor David da Costa; Ana Cristina Petry; Rosana Mazzoni
- Source:
- Limnologica 2020 v.81 pp. 125757
- ISSN:
- 0075-9511
- Subject:
- algae; basins; carnivores; deforestation; detritivores; ecotones; fish; forests; herbivores; invertebrates; omnivores; periphyton; species richness; streams; watersheds; Brazil
- Abstract:
- ... The removal of native forest affects stream characteristics, processes, and organisms at the local scale. We compared the structure of fish assemblages between microbasins impacted by deforestation and those in pristine condition in the Amazonian Machado River basin, Brazil. Fish were collected with seine and dip nets along an 80-m stretch of 28 streams. At each site, we recorded physical, chemica ...
- DOI:
- 10.1016/j.limno.2020.125757
- https://doi.org/10.1016/j.limno.2020.125757
- Author:
- Bianca Possamai; David J. Hoeinghaus; Clarisse Odebrecht; Paulo C. Abreu; Leonardo E. Moraes; Alexandre C. A. Santos; Alexandre M. Garcia
- Source:
- Estuaries and coasts 2020 v.43 no.4 pp. 880-893
- ISSN:
- 1559-2723
- Subject:
- Bayesian theory; active transport; coasts; detritivores; environmental factors; estuaries; estuarine fish; food webs; freshwater; juveniles; mullet; phytoplankton; rain; river flow; salinity; stable isotopes; statistical models; subsidies; watersheds; Brazil
- Abstract:
- ... Estuaries are influenced by seasonal and inter-annual variability in marine and freshwater intrusion. This variability affects the abundance and distribution of resources and consumers and may drive estuarine food web dynamics. This study tests for relationships among environmental variables and estuarine consumer δ¹³C, and assesses whether freshwater-derived sources increase in relative contribut ...
- DOI:
- 10.1007/s12237-019-00693-0
- https://doi.org/10.1007/s12237-019-00693-0
- Author:
- Amanda Saldanha Barbosa; Mateus Marques Pires; Uwe Horst Schulz
- Source:
- Environmental management 2020 v.65 no.5 pp. 618-629
- ISSN:
- 0364-152X
- Subject:
- agricultural land; detritivores; diet; ecosystems; electrical conductivity; fish communities; foraging; forests; functional diversity; habitats; indigenous species; land use change; landscapes; silviculture; streams; urban areas; water quality; water temperature; Brazil
- Abstract:
- ... Changes in landscape composition caused by conversion of natural habitats into human-altered ecosystems can directly influence the physical characteristics of stream networks. Such impacts can modify the functional structure of fish communities, although the exact consequences of anthropic land-use changes can be context-dependent. This study investigated the influence of different land-use classe ...
- DOI:
- 10.1007/s00267-020-01274-9
- https://doi.org/10.1007/s00267-020-01274-9
- Author:
- Matheus S. Rocha; Gabriela Reis-avila; Mateus M. Pires; Tairis Da-Costa; Noeli J. Ferla; Everton N. L. Rodrigues
- Source:
- Systematic and applied acarology 2020 v.25 no.3 pp. 577-592
- ISSN:
- 1362-1971
- Subject:
- Mesostigmata; biodiversity; branches; community structure; detritivores; environmental factors; forests; fungivores; leaves; microhabitats; mites; morphospecies; plant litter; predators; roots; soil ecosystems; soil fauna; soil organic matter; soil water; stochastic processes; vegetation structure; Brazil
- Abstract:
- ... Most mesostigmatid mites (Arachnida: Parasitiformes) are soil-dwelling predators, feeding predominantly on detritivorous and fungivorous invertebrates. Little is known about the role of environmental and spatial parameters in driving the structure of their local communities. The aim of this study is to assess the relative importance of environmental/spatial parameters in different scales and micro ...
- DOI:
- 10.11158/saa.25.3.16
- https://doi.org/10.11158/saa.25.3.16
- Author:
- Fabio Edir Amaral Albuquerque; Antonio Humberto Hamad Minervino; Marta Miranda; Carlos Herrero-Latorre; Raimundo Alves Barrêto Júnior; Francisco Leonardo Costa Oliveira; Maria Claudia Araripe Sucupira; Enrico Lippi Ortolani; Marta López-Alonso
- Source:
- Science of the total environment 2020 v.732 pp. 138983
- ISSN:
- 0048-9697
- Subject:
- Arapaima; Cichla ocellaris; Pseudoplatystoma fasciatum; Pterygoplichthys pardalis; Pygocentrus nattereri; carnivores; detritivores; fish; gold; humans; laws and regulations; metabolism; methylation; toxicity; traditional technology; Amazonia; Brazil
- Abstract:
- ... The Lower Amazon region (Western Pará, northern Brazil) is greatly affected by mining exploitations (particularly artisanal gold mines) and other industrial and intensive agricultural activities with potentially strong impacts on aquatic ecosystems. Although such impacts include contamination with various toxic elements, to date only the effects of Hg have been considered. In this study, toxic and ...
- DOI:
- 10.1016/j.scitotenv.2020.138983
- https://doi.org/10.1016/j.scitotenv.2020.138983
- Author:
- Natália Carneiro Lacerda dos Santos; Rosa Maria Dias; Diego Corrêa Alves; Brian Alvarez Ribeiro de Melo; Maria Julia Mileo Ganassin; Luiz Carlos Gomes; William Severi; Angelo Antonio Agostinho
- Source:
- Ecological indicators 2020 v.110 pp. 105933
- ISSN:
- 1470-160X
- Subject:
- Curimatidae; Prochilodontidae; chlorophyll; dams (hydrology); detritivores; environmental indicators; fish; nitrates; nutrient retention; nutrients; nutritive value; oligotrophication; organic matter; phosphates; rivers; sediments; structural equation modeling; turbidity; Brazil
- Abstract:
- ... The number of dams has had a significant increase in the last six decades, altering the physiography of rivers and creating systems of reservoirs in series. Therefore, it is expected that in a cascade of reservoirs, detritivorous fish will be especially affected due to the loss of nutritional quality in these regions, resulted from the high sedimentation of nutrients and organic matter. The object ...
- DOI:
- 10.1016/j.ecolind.2019.105933
- https://doi.org/10.1016/j.ecolind.2019.105933
- Author:
- Débora Reis de Carvalho; Carlos Bernardo Mascarenhas Alves; Marcelo Zacharias Moreira; Paulo Santos Pompeu
- Source:
- Science of the total environment 2020 v.738 pp. 139878
- ISSN:
- 0048-9697
- Subject:
- algae; anthropogenic activities; biodiversity; carbon; carbon nitrogen ratio; detritivores; fish communities; food chain; freshwater fish; industrial wastewater; macrophytes; municipal wastewater; nitrogen; omnivores; organic matter; periphyton; rivers; sewage; stable isotopes; trophic levels; water pollution; Brazil
- Abstract:
- ... Anthropogenic activities can have a great influence on water quality and in the availability of habitat and food resources, which can promote changes in the trophic diversity and carbon sources sustaining aquatic communities. The objective of this study was to evaluate if the trophic diversity and the main carbon sources sustaining fish communities change along a pollution gradient. The study was ...
- DOI:
- 10.1016/j.scitotenv.2020.139878
- https://doi.org/10.1016/j.scitotenv.2020.139878
- Author:
- Mirella Bisso Alonso; Débora Reis de Carvalho; Carlos Bernardo Mascarenhas Alves; Paulo Santos Pompeu
- Source:
- Environmental biology of fishes 2020 v.103 no.11 pp. 1437-1452
- ISSN:
- 0378-1909
- Subject:
- Myleus; algae; anthropogenic activities; basins; carbon; detritivores; fish; food webs; herbivores; niches; nitrogen; omnivores; periphyton; rivers; stable isotopes; watersheds; wet season; Brazil
- Abstract:
- ... A deep investigation on the trophic structure of a fish assemblage in a reference condition river is important since allow the comparison and determination of the extent in which other sites are degraded. It is especially relevant when we consider a reference condition river located in a basin under influence of several anthropogenic activities, as is the case of the Rio Cipó, an important tributa ...
- DOI:
- 10.1007/s10641-020-01033-z
- https://doi.org/10.1007/s10641-020-01033-z
- Author:
- Milena Fermina Rosenfield; Sandra Cristina Müller
- Source:
- Restoration ecology 2019 v.27 no.1 pp. 158-167
- ISSN:
- 1061-2971
- Subject:
- carbon nitrogen ratio; detritivores; ecosystems; functional diversity; natural regeneration; soil; species richness; trees; tropical forests; vegetation structure; Brazil
- Abstract:
- ... Restoration projects may have broad and complex ecological goals that require distinct and integrative measures for evaluating restoration development and success. However, most studies usually evaluate structural and species composition parameters, with less emphasis on ecological processes and functioning. The main objective of this study is to use an integrated approach that considers structura ...
- DOI:
- 10.1111/rec.12828
- https://doi.org/10.1111/rec.12828
- Author:
- Luis Artur Valões Bezerra; Vanessa Maria Ribeiro; Matheus Oliveira Freitas; Les Kaufman; Andre Andrian Padial; Jean Ricardo Simões Vitule
- Source:
- Ecosphere 2019 v.10 no.6 pp. e02757
- ISSN:
- 2150-8925
- Subject:
- Micropterus salmoides; Neotropics; Oreochromis; adults; aquatic ecosystems; aquatic food webs; biomass; birds; carbon; detritivores; detritus; fish; indigenous species; introduced species; invasive species; invertebrates; issues and policy; juveniles; lakes; omnivores; predation; predators; stable isotopes; trophic levels; Africa; Brazil; North America
- Abstract:
- ... Several dozen fish species have been introduced into Neotropical waters, causing significant biotic changes that include deterministic predation interactions with ecosystem effects. In general, reservoirs are preferred over lakes as places for stocking policies, due to their artificial aspect, consequently promoting fish introductions. In a meta‐analytic approach, we compared the biomass of plankt ...
- DOI:
- 10.1002/ecs2.2757
- https://doi.org/10.1002/ecs2.2757
- Author:
- Sandra Benavides‐Gordillo; Vinicius F. Farjalla; Angélica L. González; Gustavo Q. Romero
- Source:
- Freshwater biology 2019 v.64 no.8 pp. 1357-1368
- ISSN:
- 0046-5070
- Subject:
- Bromeliaceae; Naididae; algae; ammonium; aquatic communities; bacteria; biomass; color; community structure; detritivores; detritus; ecological footprint; ecosystem engineers; epiphytes; freshwater ecosystems; global change; habitats; keystone species; leaching; leaves; macroinvertebrates; nitrogen content; nitrogen cycle; organic matter; particulates; phytotelmata; prediction; rain; stoichiometry; tanks; Brazil
- Abstract:
- ... Both N deposition and changes in precipitation amount are important components of global change and affect aquatic ecosystem functioning by altering the detrital quality and detrital processing rates by macroinvertebrates and microorganisms. Changes in precipitation pattern can also modify the physical structure of the ecosystem, determining habitat availability for aquatic organisms. Although the ...
- DOI:
- 10.1111/fwb.13310
- https://doi.org/10.1111/fwb.13310
- Author:
- Riguel Feltrin Contente; Carmen Lucia del Bianco Rossi‐Wongtschowski
- Source:
- Journal of applied ichthyology 2019 v.35 no.6 pp. 1189-1196
- ISSN:
- 0175-8659
- Subject:
- Centropomidae; Gerreidae; Mugilidae; Sciaenidae; adults; demersal fish; detritivores; ecosystems; fauna; gears; gillnets; juveniles; monitoring; pelagic fish; piscivores; planktivores; research programs; sardines; species abundance; species richness; trawl nets; tropical fish; Brazil
- Abstract:
- ... We investigated the combined use of cast net (CN), otter trawl (OT), and encircling gill net (EG) to characterize the richness, composition, and abundance of species and functional groups of the subtidal fish assemblage in a subtropical shallow ecosystem in Brazil. Our hypothesis, that this combination would improve faunal characterization, was supported. The CN best sampled small pelagic planktiv ...
- DOI:
- 10.1111/jai.13950
- https://doi.org/10.1111/jai.13950
- Author:
- Lucas Silva Azevedo; Inácio Abreu Pestana; Adriely Ferreira da Costa Nery; Wanderley Rodrigues Bastos; Cristina Maria Magalhães Souza
- Source:
- Ecotoxicology 2019 v.28 no.4 pp. 478-485
- ISSN:
- 0963-9292
- Subject:
- detritivores; ecosystems; fish; herbivores; lakes; mercury; muscles; omnivores; rivers; seasonal variation; watersheds; Amazonia; Brazil
- Abstract:
- ... Hg accumulation in fish is influenced by several factors including seasonality. In the Amazon, ecosystems are marked by strong seasonal variation in precipitation, which leads to drastic changes in the water level of lakes and rivers. The aim of this study was to evaluate Hg levels in muscle of detritivorous, herbivorous and omnivorous fish from an Amazon lake (Madeira River Basin, Amazonas, Brazi ...
- DOI:
- 10.1007/s10646-019-02044-y
- https://doi.org/10.1007/s10646-019-02044-y
- Author:
- Márcio Charles da Silva Negrão; Maria Regina Lucas da Silva; Marcela Nunes Videira; Lúcio André Viana
- Source:
- Parasitology international 2019 pp. -
- ISSN:
- 1383-5769
- Subject:
- Coccidiomorphea; Geophagus; Hoplias malabaricus; carnivores; detritivores; fish; floodplains; gall bladder; genes; heart; herbivores; light microscopes; liver; new species; omnivores; oocysts; parasites; parasitism; polymerase chain reaction; ribosomal RNA; Amazonia; Brazil
- Abstract:
- ... This work reports the occurrence of coccidia of the genus Calyptospora in fishes from the eastern Amazon. Fish were collected on flood plains in the municipality of Macapá, State of Amapá, Brazil. Fresh squash preparations of liver, heart and gallbladder were examined under light microscope. Positive samples of Geophagus proximus and Hoplias malabaricus were used to detect parasites by PCR with Ca ...
- DOI:
- 10.1016/j.parint.2019.101975
- https://doi.org/10.1016/j.parint.2019.101975
- Author:
- Jamile Queiroz‐Sousa; Sally A. Keith; Gianmarco S. David; Heleno Brandão; André B. Nobile; Jaciara V. K. Paes; Ana C. Souto; Felipe P. Lima; Reinaldo J. Silva; Raoul Henry; Katherine Richardson
- Source:
- Journal of fish biology 2019 v.95 no.4 pp. 1125-1136
- ISSN:
- 0022-1112
- Subject:
- detritivores; fish communities; freshwater; freshwater fish; functional diversity; introduced species; piscivores; species abundance; species richness; Brazil
- Abstract:
- ... In this study, the inverted trophic hypothesis was tested in the freshwater fish communities of a reservoir. The distribution of fish species in three freshwater habitats in the Jurumirim Reservoir, Brazil, was examined using both species richness and the relative proportions of different trophic groups. These groups were used as a proxy for functional structure in an attempt to test the ability o ...
- DOI:
- 10.1111/jfb.14109
- https://doi.org/10.1111/jfb.14109
- Author:
- André Batista Nobile; Augusto Seawright Zanatta; Heleno Brandão; E.O.P. Zica; F.P. Lima; Diogo Freitas-Souza; Edmir Daniel Carvalho; Reinaldo José da Silva; Igor Paiva Ramos
- Source:
- Aquaculture 2018 v.495 pp. 780-785
- ISSN:
- 0044-8486
- Subject:
- Apareiodon; Neotropics; Pimelodus; Steindachnerina; basins; biomass; cage culture; cages; detritivores; fauna; fish; fish farms; gillnets; indigenous species; seasonal variation; wastes; water reservoirs; Brazil
- Abstract:
- ... Brazil has shown an increase in cage fish farms activity in reservoirs. However, this activity shows potential to cause several changes in the environment with consequences in the structure of native fish fauna community. Thus, the hypothesis of this work is that three cage fish farms, located in the different areas of Chavantes reservoir, high Paraná basin, have potential to interfere with reside ...
- DOI:
- 10.1016/j.aquaculture.2018.06.053
- https://doi.org/10.1016/j.aquaculture.2018.06.053
- Author:
- Ândrio Zafalon-Silva; Frederico Dutra Kirst; Rodrigo Ferreira Krüger
- Source:
- Revista Brasileira de entomologia 2018 v.62 no.4 pp. 292-303
- ISSN:
- 0085-5626
- Subject:
- Musca domestica; carnivores; cattle; coastal plains; conservation areas; detritivores; ecosystems; fauna; insects; invasive species; inventories; population ecology; streams; surveys; Brazil
- Abstract:
- ... The Brazilian Coastal Plain of the Pampa Biome (CPPB), has suffered fragmentation caused by resource extraction and cattle raising. In turn, conservation proposals are needed to prevent the anthropisation of Pampa natural areas. The first step towards conservation proposals by using insects is fauna inventories, providing data support for legislators. Thus, we undertook a regional and broad-scale ...
- DOI:
- 10.1016/j.rbe.2018.09.002
- https://doi.org/10.1016/j.rbe.2018.09.002
- Author:
- Thais Ranielle Souza de Oliveira; Shayne Rodrigues de Moura; Denise Dias da Cruz; Vivian Loges; Celso Feitosa Martins
- Source:
- Florida entomologist 2018 v.101 no.2 pp. 160-165
- ISSN:
- 1938-5102
- Subject:
- Dermaptera; Diptera; Heliconia bihai; Hemiptera; Hydrophilidae; Odonata; Plecoptera; Staphylinidae; Trichoptera; acidity; aquatic organisms; bracts; detritivores; fauna; herbivores; insects; organic matter; pH; phytotelmata; predators; temperature; Brazil
- Abstract:
- ... The insect fauna associated with the genus Heliconia (Heliconiaceae) is quite diversified and includes terrestrial and aquatic species. In plants with an upright inflorescence, the bracts may form phytotelmata. Insects are one of the main taxa that have adapted to phytotelmata environments, including species of Diptera, Coleoptera, Hemiptera, Dermaptera, Plecoptera, Trichoptera, and Odonata, among ...
- DOI:
- 10.1653/024.101.0202
- https://doi.org/10.1653/024.101.0202
- Author:
- Paula C. J. Reis; Luiz A. Martinelli; Francisco A. R. Barbosa
- Source:
- Marine & freshwater research 2017 v.68 no.3 pp. 429-441
- ISSN:
- 1323-1650
- Subject:
- Chaoboridae; algae; carbon; detritivores; dry season; food chain; habitats; ingestion; lakes; larvae; littoral zone; nitrogen; primary productivity; seasonal variation; stable isotopes; statistical models; trophic levels; wet season; zooplankton; Brazil
- Abstract:
- ... Trophic connections among habitats may be central to food-web dynamics in lakes. Lacustrine zooplankton can rely on basal carbon (C) sources from different origins and plays an important link between these and organisms in higher trophic levels. We investigated the basal C sources supporting the planktonic food web and the trophic relationships among zooplankton size fractions in a tropical lake ( ...
- DOI:
- 10.1071/MF14322
- https://doi.org/10.1071/MF14322
- Author:
- Ana Z. Gonçalves; Diane S. Srivastava; Paulo S. Oliveira; Gustavo Q. Romero
- Source:
- journal of animal ecology 2017 v.86 no.4 pp. 790-799
- ISSN:
- 0021-8790
- Subject:
- oviposition; aquatic food webs; predators; food composition; Odontomachus; insects; roots; juveniles; forests; biocenosis; terrestrial ecosystems; animals; Vriesea; forage; tanks; imagos; females; species diversity; predation; Ostracoda; aquatic organisms; detritivores; aquatic environment; epiphytes; phoresy; Brazil
- Abstract:
- ... Predation is one of the most fundamental ecological processes affecting biotic communities. Terrestrial predators that live at ecosystem boundaries may alter the diversity of terrestrial organisms, but they may also have cross‐ecosystem cascading effects when they feed on organisms with complex life cycles (i.e. organisms that shift from aquatic juvenile stages to terrestrial adult stages) or inhi ...
- DOI:
- 10.1111/1365-2656.12671
- https://doi.org/10.1111/1365-2656.12671
- Author:
- Robin M. LeCraw; Gustavo Q. Romero; Diane S. Srivastava
- Source:
- Ecography 2017 v.40 no.12 pp. 1445-1454
- ISSN:
- 0906-7590
- Subject:
- Bromeliaceae; community structure; detritivores; ecological function; food webs; habitats; leaves; macroinvertebrates; phytotelmata; plant litter; rain forests; Brazil; Costa Rica; Puerto Rico
- Abstract:
- ... Habitat size is known to affect community structure and ecosystem function, but few studies have examined the underlying mechanisms over sufficient size gradients or in enough geographic contexts to determine their generality. Our goal in this study was to determine if the relationship between habitat size and leaf decomposition varied across geographic sites, and which factors may be driving the ...
- DOI:
- 10.1111/ecog.02796
- https://doi.org/10.1111/ecog.02796
- Author:
- Mônica Ceneviva-Bastos; Dayane Boracini Prates; Renato de Mei Romero; Pitágoras Conceição Bispo; Lilian Casatti
- Source:
- Limnologica 2017 v.63 pp. 11-17
- ISSN:
- 0075-9511
- Subject:
- Ephemeroptera; Plecoptera; Trichoptera; basins; carnivores; detritivores; diet; digestive system; environmental factors; insects; omnivores; phylogeny; savannas; streams; watersheds; Brazil
- Abstract:
- ... Insects of the orders Ephemeroptera, Plecoptera, and Trichoptera (EPT) are prominent among stream biota and are associated with many ecological processes in these environments, meaning that a proper definition of their habits is essential. We studied EPT from three watersheds in Brazil (Paraguai, Paraná, and São Francisco) in order to (i) determine the trophic guilds of EPT genera sampled; (ii) de ...
- DOI:
- 10.1016/j.limno.2016.12.004
- https://doi.org/10.1016/j.limno.2016.12.004
- Author:
- Gustavo Q. Romero; Gustavo C. O. Piccoli; Paula M. de Omena; Thiago Gonçalves‐Souza
- Source:
- Ecology 2016 v.97 no.10 pp. 2705-2715
- ISSN:
- 0012-9658
- Subject:
- Bromeliaceae; Zygoptera; climatic factors; detritivores; detritus; ecosystems; habitats; heat; home range; latitude; linear models; predators; prediction; temperature; trophic levels; water holding capacity; Brazil
- Abstract:
- ... Habitat size and climate are known to affect the trophic structure and dynamics of communities, but their interactive effects are poorly understood. Organisms from different trophic levels vary in terms of metabolic requirements and heat dissipation. Indeed, larger species such as keystone predators require more stable climatic conditions than their prey. Likewise, habitat size disproportionally a ...
- DOI:
- 10.1002/ecy.1496
- https://doi.org/10.1002/ecy.1496
- Author:
- Rodrigo Souza Santos
- Source:
- Agro@mbiente on-line 2016 v.10 no.3 pp. 282-286
- ISSN:
- 1982-8470
- Subject:
- Neotropics; Opiliones; detergents; detritivores; fauna; formaldehyde; geographical distribution; habitat fragmentation; indigenous species; insects; people; soil organic matter; surveys; Brazil
- Abstract:
- ... Harvestmen (Arachnida: Opiliones) are arachnids with wide geographical distribution, most species being recorded in Neotropical regions. These organisms have low dispersal ability, a high degree of endemism and are sensitive to environmental change; they also participate in the cycling of soil organic matter, since the eating habits of many species are detritivorous. Given the importance of these ...
- DOI:
- 10.18227/1982-8470ragro.v10i3.3347
- https://doi.org/10.18227/1982-8470ragro.v10i3.3347
- Author:
- Márcia C. C. de Azevedo; Antonio G. da Cruz‐Filho; Francisco G. Araújo
- Source:
- Marine ecology 2016 v.37 no.6 pp. 1223-1238
- ISSN:
- 0173-9565
- Subject:
- Atherinella brasiliensis; Diapterus; Eucinostomus; Harengula clupeola; Mugil liza; Sphoeroides testudineus; anthropogenic activities; autumn; biomass; community structure; detritivores; environmental factors; fish communities; habitat preferences; hydrologic cycle; issues and policy; mullet; planktivores; rain; salinity; seasonal variation; species diversity; spring; summer; surveys; temperature; winter; Brazil
- Abstract:
- ... We compared fish community structure in Guaratiba Mangrove, SE Brazil, among three seasons of the hydrological cycle [(i) spring, increasing temperature and rainfall, decreasing salinity; (ii) summer/early fall, high temperature and rainfall, intermediate salinity; (iii) late fall/winter, low temperature and rainfall, high salinity] and between the years 2002–2003 and 2008–2009. The aim was to tes ...
- DOI:
- 10.1111/maec.12302
- https://doi.org/10.1111/maec.12302
- Author:
- Bruno Welter Giraldes; Angela Zacaron Silva; Fabio M. Corrêa; David M. Smyth
- Source:
- Global ecology and conservation 2015 v.4 pp. 572-580
- ISSN:
- 2351-9894
- Subject:
- Panulirus; artisanal fishing; bycatch; crabs; detritivores; ecosystems; fauna; fish; fishermen; gillnets; habitats; herbivores; lobsters; reefs; traditional technology; Brazil
- Abstract:
- ... Artisanal fishing activity with gillnets to capture the spiny lobster is a common practice along the coastal reefs of Brazil. This research aims to understand the impact that this artisanal fishing practice is having on the coastal reef systems analysing its associated fauna (bycatch) and the stock of the target species Panulirus echinatus. The study compared an area which was subjected to intense ...
- DOI:
- 10.1016/j.gecco.2015.10.008
- https://doi.org/10.1016/j.gecco.2015.10.008
- Author:
- Wanderley R. Bastos; José G. Dórea; José Vicente E. Bernardi; Leidiane C. Lauthartte; Marilia H. Mussy; Luiz D. Lacerda; Olaf Malm
- Source:
- Environmental Research 2015 v.140 pp. 191-197
- ISSN:
- 0013-9351
- Subject:
- bioaccumulation; body length; deforestation; detritivores; feeding methods; fish; fish feeding; gold; herbivores; mercury; methylmercury compounds; mining; omnivores; piscivores; pollution; rivers; traditional technology; trophic levels; watersheds; Amazon River; Amazonia; Brazil
- Abstract:
- ... The Madeira River is the largest tributary of the Amazon River Basin and one of the most impacted by artisanal gold-mining activities, deforestation for agricultural projects, and recent hydroelectric reservoirs. Total Hg (and methylmercury-MeHg) concentrations was determined in 3182 fish samples of 84 species from different trophic levels as a function of standard size. Species at the top of the ...
- DOI:
- 10.1016/j.envres.2015.03.029
- https://doi.org/10.1016/j.envres.2015.03.029
36. Population parameters of the fish fauna in a long‐established Amazonian reservoir (Amapá, Brazil)
- Author:
- J. C. Sá‐Oliveira; R. Angelini; V. J. Isaac‐Nahum
- Source:
- Journal of applied ichthyology 2015 v.31 no.2 pp. 290-295
- ISSN:
- 0175-8659
- Subject:
- Geophagus; Hemiodus; Serrasalmus; basins; biomass; body length; detritivores; fauna; fish; food intake; gillnets; growth performance; habitats; longevity; mortality; omnivores; Brazil
- Abstract:
- ... The present study focused on the fish fauna of the 44‐year‐old Coaracy Nunes reservoir in the northern Amazon basin, producing estimates of the growth constant (k), maximum and asymptotic body lengths and weights, natural mortality (M), the consumption/biomass ratio (QB) (intake of food by a group over a year), the Aspect ratio (Ar) of the caudal fin, growth performance (Φ), longevity, and trophic ...
- DOI:
- 10.1111/jai.12667
- https://doi.org/10.1111/jai.12667
- Author:
- Luciana R. Podgaiski; Camila Silva Goldas; Claire P. R. Ferrando; Fernanda S. Silveira; Fernando Joner; Gerhard E. Overbeck; Milton Souza Mendonça Jr; Valério D. Pillar
- Source:
- Austral ecology 2014 v.39 no.6 pp. 686-695
- ISSN:
- 1442-9985
- Subject:
- burning; canopy; detritivores; ecosystems; forage quality; grasslands; habitats; heat; humidity; mortality; photolysis; shrubs; soil ecology; soil fauna; solar radiation; Brazil
- Abstract:
- ... Disturbances are primary forces creating spatial heterogeneity in ecosystems, and inducing changes on biological communities, abiotic characteristics and ecological processes. Here we focus on the effects of fire disturbance in the decomposition process at subtropical Campos grasslands in South Brazil, where burns are traditionally used to reduce shrub encroachment, and improve forage quality. We ...
- DOI:
- 10.1111/aec.12132
- https://doi.org/10.1111/aec.12132
- Author:
- A M Medina; P P Lopes
- Source:
- Neotropical entomology 2014 v.43 no.2 pp. 127-133
- ISSN:
- 1519-566X
- Subject:
- Scarabaeidae; bananas; cattle; cattle manure; detritivores; diel activity; dung beetles; feces; food choices; forests; humans; morphospecies; nocturnal activity; species diversity; spleen; Brazil
- Abstract:
- ... We characterized dung beetles food preference and diel activity and examined the way such characteristics may structure a Scarabaeinae community in a dry forest. We sampled a fragment of Arboreal Caatinga in Milagres, Bahia, Brazil, during the dry and wet seasons, using baited pitfall (bovine spleen, human feces, cow dung, and rotten banana). Species were classified by activity (nocturnal and diur ...
- DOI:
- 10.1007/s13744-014-0198-9
- https://doi.org/10.1007/s13744-014-0198-9
39. Assessment of biotic condition of Atlantic Rain Forest streams: A fish-based multimetric approach
- Author:
- Bianca de Freitas Terra; Robert M. Hughes; Marcio Rocha Francelino; Francisco Gerson Araújo
- Source:
- Ecological indicators 2013 v.34 pp. 136-148
- ISSN:
- 1470-160X
- Subject:
- Characiformes; biomass; detritivores; ecosystems; humans; rain forests; screening; species diversity; streams; watersheds; Brazil
- Abstract:
- ... We developed a preliminary fish-based multimetric index (MMI) to assess biotic condition of Atlantic Rain Forest streams in Southeastern Brazil. We used least-disturbed sites as proxies of reference conditions for metric development. To determine the disturbance gradient we used an Integrated Disturbance Index (IDI) that summarized the multiple disturbances measured at local/regional catchment sca ...
- DOI:
- 10.1016/j.ecolind.2013.05.001
- https://doi.org/10.1016/j.ecolind.2013.05.001
- Author:
- Júlio César Sá-Oliveira; Victoria Judith Isaac
- Source:
- Biota Amazônia 2013 v.3 no.2 pp. 116-125
- ISSN:
- 2179-5746
- Subject:
- Cyanobacteria; Hypostomus plecostomus; detritivores; detritus; diet; dry season; fish; foraging; interspecific competition; rivers; stomach; zooplankton; Amazonia; Brazil
- Abstract:
- ... The stomach contents of 172 individuals of Hypostomus plecostomus and 94 specimens of Hypostomus emarginatus from the Coaracy Nunes reservoir in northern Brazil were analyzed in order to evaluate the feeding ecology of the two fish species from this site. Data were collected in eight campaigns conducted every two months between May, 2010 and July, 2011, four in the dry season and four during the f ...
- DOI:
- 10.18561/2179-5746/biotaamazonia.v3n2p116-125
- https://doi.org/10.18561/2179-5746/biotaamazonia.v3n2p116-125
- Author:
- Tatiana Lemos Bisi; Gilles Lepoint; Alexandre de Freitas Azevedo; Paulo Renato Dorneles; Leonardo Flach; Krishna Das; Olaf Malm; José Lailson-Brito
- Source:
- Ecological indicators 2012 v.18 no. pp. 291-302
- ISSN:
- 1470-160X
- Subject:
- macroalgae; diet; dolphins; Crustacea; bioaccumulation; invertebrates; mercury; muscles; detritivores; nitrogen; nitrogen fixation; Cephalopoda; carbon; fish; ecosystems; food chain; stable isotopes; Brazil
- Abstract:
- ... The present study investigated trophic relationships and mercury flow through food webs of three tropical coastal ecosystems: Guanabara, Sepetiba and Ilha Grande bays. The investigation was carried out through carbon and nitrogen stable isotopes (δ¹³C, δ¹⁵N) and total mercury (THg) determination in muscle from 35 species, including crustacean, cephalopod, fish and dolphin species. Detritivorous sp ...
- DOI:
- 10.1016/j.ecolind.2011.11.015
- https://doi.org/10.1016/j.ecolind.2011.11.015
- Author:
- Krüger, Rodrigo F.; Carvalho, Claudio J.B. de; Ribeiro, Paulo B.
- Source:
- Neotropical entomology 2010 v.39 no.3 pp. 345-353
- ISSN:
- 1519-566X
- Subject:
- mathematical models; insect behavior; predatory insects; Muscidae; body weight; spatial distribution; population distribution; detritivores; larvae; ecological competition; imagos; grasslands; Brazil
- Abstract:
- ... The distribution of muscid species (Diptera) in grasslands fragments of southern Brazil was assessed using null models according to three assembly rules: (a) negatively-associated distributions; (b) guild proportionality; and (c) constant body-size ratios. We built presence/absence matrices and calculated the C-score index to test negatively-associated distributions and guild proportionality based ...
- DOI:
- 10.1590/S1519-566X2010000300006
- PubMed:
- 20676506
- https://doi.org/10.1590/S1519-566X2010000300006
- Author:
- Pereira, J.L.; Picanço, M.C.; Pereira, E.J.G.; Silva, A.A.; Jakelaitis, A.; Pereira, R.R.; Xavier, V.M.
- Source:
- Bulletin of entomological research 2010 v.100 no.6 pp. 679-688
- ISSN:
- 0007-4853
- Subject:
- parasitoids; beans; crop residue management; no-tillage; management systems; predators; Phaseolus vulgaris; Circulifer; crop yield; integrated pest management; Solenopsis; insect control; beneficial arthropods; leaves; insect pests; arthropod communities; crop residues; herbivores; species diversity; Empoasca; canopy; Hypogastrura; detritivores; cropping systems; growing season; Brazil
- Abstract:
- ... Crop management practices can affect the population of phytophagous pest species and beneficial arthropods with consequences for integrated pest management. In this study, we determined the effect of no-tillage and crop residue management on the arthropod community associated with the canopy of common beans (Phaseolus vulgaris L.). Abundance and species composition of herbivorous, detritivorous, p ...
- DOI:
- 10.1017/S0007485310000039
- PubMed:
- 20504384
- https://doi.org/10.1017/S0007485310000039
- Author:
- DeSouza, O.; Araújo, A.P.A.; Reis, R. Jr.
- Source:
- Bulletin of entomological research 2009 v.99 no.6 pp. 603-609
- ISSN:
- 0007-4853
- Subject:
- temporal variation; soil ecology; predatory insects; baits; subterranean termites; detritivores; carbon; soil nutrient dynamics; predation; Formicidae; degradation; foraging; Isoptera; Brazil
- DOI:
- 10.1017/S000748530900666X
- PubMed:
- 19302722
- https://doi.org/10.1017/S000748530900666X
- Author:
- Terra, Bianca Freitas; Araújo, Francisco Gerson; Calza, Cristiane Ferreira; Lopes, Ricardo Tadeu; Teixeira, Tatiana Pires
- Source:
- Water, air, and soil pollution 2008 v.187 no.1-4 pp. 275-284
- ISSN:
- 0049-6979
- Subject:
- water pollution; rivers; bioaccumulation; copper; zinc; heavy metals; lead; detritivores; freshwater fish; carnivores; chromium; omnivores; Brazil
- Abstract:
- ... The Paraíba do Sul river is located in one of the most developed part of Brazil and receives many organic and industrial effluents directly affecting the ichthyofauna. Concentration of four heavy metals (Cu, Cr, Zn and Pb) were determined in two tissues (muscle and gonads) of three abundant fish species from different trophic levels (Oligosarcus hepsetus--carnivore, Geophagus brasiliensis--omnivo ...
- DOI:
- 10.1007/s11270-007-9515-9
- https://doi.org/10.1007/s11270-007-9515-9
- Author:
- R. L. Motta; V. S. Uieda
- Source:
- Community ecology 2008 v.9 no.1 pp. 73-82
- ISSN:
- 1585-8553
- Subject:
- Hisonotus; Imparfinis; algae; detritivores; fish; fish communities; food webs; organic matter; rivers; streams; Brazil
- Abstract:
- ... Two fish species, one top predator (Imparfinis mirini) and one intermediate detritivorous species (Hisonotus depres-sicauda) , were experimentally manipulated to evaluate their relative importance in structuring the periphytic community, as well as their effects on the other trophic levels. An enclosure experiment was conducted in the Potreirinho creek, a second order tributary of Pa ...
- DOI:
- 10.1556/ComEc.9.2008.1.9
- https://doi.org/10.1556/ComEc.9.2008.1.9