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Registros recuperados: 31
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Animal board invited review: OneARK: Strengthening the links between animal production science and animal ecology ArchiMer
Destoumieux-garzón, Delphine; Bonnet, P.; Teplitsky, C.; Criscuolo, F.; Henry, P.-y.; Mazurais, David; Prunet, P.; Salvat, Gilles; Usseglio-polatera, P.; Verrier, E.; Friggens, N.c..
Wild and farmed animals are key elements of natural and managed ecosystems that deliver functions such as pollination, pest control and nutrient cycling within the broader roles they play in contributing to biodiversity and to every category of ecosystem services. They are subjected to global changes with a profound impact on the natural range and viability of animal species, the emergence and spatial distribution of pathogens, land use, ecosystem services and farming sustainability. We urgently need to improve our understanding of how animal populations can respond adaptively and therefore sustainably to these new selective pressures. In this context, we explored the common points between animal production science and animal ecology to identify promising...
Tipo: Text Palavras-chave: Adaptation; Agroecosystem; Livestock sustainability; Resilience; Zoonotic disease.
Ano: 2021 URL: https://archimer.ifremer.fr/doc/00663/77509/79273.pdf
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What is the effect of soil use on ant communities? Neotropical Entomology
Schmidt,Fernando A.; Diehl,Elena.
Studies on ant communities in agroecosystems have contributed to the knowledge of the effect of agricultural activities on biological communities. The aim of this study is to explain the effect of soil use on ant communities. We tested the hypothesis that there was a decrease in ant species richness and a change in the species composition at habitats with more intense soil use. We collected ants using sardine baits, subterranean traps and direct sampling at four habitats with different soil use (secundary forest, Acacia forestry, initial stage of succession and mixed crops). The ant species richness did not decrease with intensity of soil use. In successional habitat the species numbers collected using sardine baits and subterranean traps were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agroecosystem; Biodiversity; Bio-indicator; Environmental monitoring; Formicidae.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2008000400005
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Avaliação rápida da diversidade de formigas em sistemas de uso do solo no sul da Bahia Neotropical Entomology
Braga,Danielle L; Louzada,Júlio N C; Zanetti,Ronald; Delabie,Jacques.
We aimed to compare the soil ant diversity in different land use systems from Atlantic Forest area, in Southern Bahia state, Brazil. The ants were sampled in 16 sites: two primary forest sites (un-logged forest); three young secondary forests (<8 years old); three intermediate secondary forests (8-20 years old); three old secondary forests (&gt;20 years old); three Eucalyptus grandis plantations (3-7 years old), and two introduced pastures. Each site was sampled in three sampling points 15 m apart, and distant over 50 m from the site edge. In each sampling point we gathered the litter from a 1 m² and extracted the ants with Winkler extractors during 48h. We found 103 ant species from 29 genera and eight subfamilies. The five richest genera were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Formicidae; Community structure; Agroecosystem; RAPD.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2010000400002
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Use of functional traits to assess changes in stream fish assemblages across a habitat gradient Neotropical Ichthyology
Ribeiro,Mariela Domiciano; Teresa,Fabrício Barreto; Casatti,Lilian.
Abstract Functional traits are important for understanding the links between species occurrence and environmental conditions. Identifying these links makes it possible to predict changes in species composition within communities under specific environmental conditions. We used functional traits related to habitat use and trophic ecology in order to assess the changes in fish community composition between streams with varying habitat structure. The relationship between the species traits and habitat characteristics was analyzed using an RLQ ordination analysis. Although species were widely distributed in habitats with different structures, physical conditions did favor some species based on their functional characteristics. Eight functional traits were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: RLQ analysis; Agroecosystem; Freshwater; Tropical fish; Morphology.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252016000100206
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Crop biodiversity repercussions of subsidized organic farming in Greece AgEcon
Nastis, Stefanos A.; Michailidis, Anastasios; Mattas, Konstadinos.
This paper analyzes the impact of CAP financial assistance on crop biodiversity under uncertainty. A stochastic production function is employed and estimated to assess whether risk-averse farmers hedge risk by diversifying their portfolio of crops, thus increasing crop biodiversity. The model is applied to farm-level data of organic crop farms in Greece. Organic farming financial assistance poses a double-edged sword: even though it is considered agrobiodiversity enhancing as a cultivation method, subsidizing it can become agrobiodiversity reducing, since farmers may select to cultivate only the subsidized crops. The study shows that risk aversion leads to crop biodiversity conservation. However, providing CAP financial assistance on certain crops appears...
Tipo: Conference Paper or Presentation Palavras-chave: Crop biodiversity; Agroecosystem; Risk management; Agricultural assistance; Crop Production/Industries; Farm Management; Resource /Energy Economics and Policy; Q12; Q18; D80; Q24; Q57.
Ano: 2011 URL: http://purl.umn.edu/114628
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Locust and grasshopper control by cropping systems Thai Agricultural
Samuth Mongkolkiti.
Palavras-chave: Corn; Maize; Patanga; Locust; Grasshopper; Patanga succincta; Cropping systems; Agroecosystem; Insect control; ข้าวโพด; ตั๊กแตนปาทังก้า; ระบบการปลูกพืช; ระบบนิเวศเกษตร.
Ano: 1979 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3968
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Diversity of parasitoid wasps in conventional and organic guarana (Paullinia cupana var. sorbilis) cultivation areas in the Brazilian Amazon Acta Amazonica
SCHOENINGER,Karine; SOUZA,Jorge L.P.; KRUG,Cristiane; OLIVEIRA,Marcio L..
ABSTRACT We surveyed parasitoid wasps (Hymenoptera) in two guarana plantations in the central Brazilian Amazon (one conventionally, and one organically managed), as well as in adjacent forest and edge areas between crop and forest. We evaluated differences between management systems in parasitoid diversity and abundance, and assessed the importance of the surrounding matrix as a source of parasitoid wasps for guarana cultivation. Parasitoid wasp richness, abundance and taxonomic composition (at family level) were compared between plantations, and among habitats within plantations. Wasps were sampled using Malaise and Moericke traps. A total of 25,951 parasitoid wasps (10,828 in the conventional, and 15,123 in the organic crop area) were collected, and were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agroecosystem; Chalcidoidea; Crop management; Encyrtidae; Natural enemies.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672019000400283
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Human-modified landscape acts as refuge for mammals in Atlantic Forest Biota Neotropica
Bovo,Alex Augusto de Abreu; Magioli,Marcelo; Percequillo,Alexandre Reis; Kruszynski,Cecilia; Alberici,Vinicius; Mello,Marco A. R.; Correa,Lidiani Silva; Gebin,João Carlos Zecchini; Ribeiro,Yuri Geraldo Gomes; Costa,Francisco Borges; Ramos,Vanessa Nascimento; Benatti,Hector Ribeiro; Lopes,Beatriz; Martins,Maísa Z. A.; Diniz-Reis,Thais Rovere; Camargo,Plínio Barbosa de; Labruna,Marcelo Bahia; Ferraz,Katia Maria Paschoaletto Micchi de Barros.
Abstract: Human-modified landscapes (HMLs) are composed by small, isolated and defaunated forest fragments, which are surrounded by agricultural and urban areas. Information on species that thrives in these HMLs is essential to direct conservation strategies in local and regional scales. Since HMLs are dominant in the Atlantic Forest, we aimed to assess the mammalian diversity in a HML in southeastern Brazil and to propose conservation strategies. We collected data of terrestrial (small-, medium- and large-sized) and volant mammals in three small forest fragments (10, 14 and 26 ha) and adjacent areas, between 2003 and 2016, using complementary methods: active search, camera trapping, live-traps, mist nets and occasional records (i.e., roadkills). In...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Mammalia; Inventory; Conservation; Forest Remnants; Agroecosystem.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032018000200304
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Relationship between body mass and body length in capybaras (Hydrochoerus hydrochaeris) Biota Neotropica
Ferraz,Katia Maria Paschoaletto Micchi de Barros; Bonach,Kelly; Verdade,Luciano Martins.
As a part of a management program we captured 39 capybaras (Hydrochoerus hydrochaeris) in an agroecosystem at the east central region of the State of São Paulo, Brazil from March 2001 to May 2002. Average adult male body mass was 54.1 ± 8.05 kg, and average adult female body mass was 62.0 ± 12.03 kg. Average juvenile male body mass was 23.0 ± 8.28 kg, and average juvenile female body mass was 26.7 ± 5.86 kg. Males and females presented a significant variation in the allometric relation between body mass and body length. Body mass and body length had a high correlation for both adult males and adult females. These results from capybaras in agroecosystem might be relevant for further management programs.
Tipo: Info:eu-repo/semantics/other Palavras-chave: Capybaras; Body mass; Body length; Agroecosystem.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032005000100020
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Rodentborne fungal pathogens in wetland agroecosystem BJM
Thomas,Manuel; Samuel K,Abraham; Kurian,Punnen.
The past few decades have witnessed an overwhelming increase in the incidence of fungal infections, particularly in immunocompromised individuals. Consequently, zoonotic diseases, especially through rodents constitute a prominent group among the emerging diseases. Rodents are commensal to man and related health risks are common. Water rats (Rattus norvegicus) are typical to Vembanadu-Kol wetland agroecosystems, where they can act as a good carrier nexus for pathogens. The present study evaluates the carrier status of water rats with respect to fungal pathogens. A total of fifty two fungi covering eighteen families were isolated. Among the isolates, eight were dermaptophytes and Chrysosporium sp. (89.18%) was the frequent isolate. The source-wise analyses...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Rodents; Vembanadu-Kol wetland; Fungi; Agroecosystem.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000100028
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Soil Management and Efficiency of Rhizobia Strains of Cowpea Vigna unguiculata (L.) Walp. in the Tropics Chilean J. Agric. Res.
Donizetti dos Santos,José Geraldo; Ferreira Aguiar,Alana das Chagas; Silva Junior,Edilson Máximo; Lemes Dadalto,Danubia; Rodrigues Sousa,Merijane; Ribeiro Xavier,Gustavo; Gomes de Moura,Emanoel.
In the humid tropics, the largest obstacle to the implementation of sustainable farming systems is the reduced efficiency of nutrient use by crops. This study assesses the effectiveness of five selected rhizobia strains in symbiosis with cowpea (Vigna unguiculata (L.) Walp.), with the objective of replacing N fertilization in the predominant agricultural system used by smallholder farmers. The study was carried out in three adjacent areas with distinct agricultural uses: conventional tillage, itinerant agriculture, and a no-till system. The experimental design was in randomized complete blocks with four replicates and seven treatments: five rhizobia strains (BR3262, BR3267, BR3299, INPA3-11B, and UFLA 3-84) and two controls without inoculation (one without...
Tipo: Journal article Palavras-chave: Agroecosystem; Nitrogen-fixing nodule bacteria; Legumes.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392011000400015
Registros recuperados: 31
Primeira ... 12 ... Última
 

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