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Registros recuperados: 27
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Quantifying spatial scaling patterns and their local and regional correlates in headwater streams: implications for resilience Ecology and Society
Sandin, Leonard; Swedish University of Agricultural Sciences, Department of Aquatic Sciences and Assessment; leonard.sandin@slu.se; Allen, Craig R; University of Nebraska; allencr@unl.edu; Angeler, David G; Swedish University of Agricultural Sciences, Department of Aquatic Sciences and Assessment; david.angeler@slu.se.
The distribution of functional traits within and across spatiotemporal scales has been used to quantify and infer the relative resilience across ecosystems. We use explicit spatial modeling to evaluate within- and cross-scale redundancy in headwater streams, an ecosystem type with a hierarchical and dendritic network structure. We assessed the cross-scale distribution of functional feeding groups of benthic invertebrates in Swedish headwater streams during two seasons. We evaluated functional metrics, i.e., Shannon diversity, richness, and evenness, and the degree of redundancy within and across modeled spatial scales for individual feeding groups. We also estimated the correlates of environmental versus spatial factors of both functional composition and...
Tipo: Peer-Reviewed Insight Palavras-chave: Biodiversity; Cross-scale resilience; Functional feeding groups; Invertebrates; Local and regional determinants; River ecosystems; Spatial modeling.
Ano: 2014
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Revealing the Organization of Complex Adaptive Systems through Multivariate Time Series Modeling Ecology and Society
Angeler, David G; Swedish University of Agricultural Sciences, Department of Aquatic Sciences and Assessment; david.angeler@slu.se; Drakare, Stina; Swedish University of Agricultural Sciences, Department of Aquatic Sciences and Assessment ; stina.drakare@slu.se; Johnson, Richard K; Swedish University of Agricultural Sciences, Department of Aquatic Sciences and Assessment ; richard.johnson@slu.se.
Revealing the adaptive responses of ecological, social, and economic systems to a transforming biosphere is crucial for understanding system resilience and preventing collapse. However, testing the theory that underpins complex adaptive system organization (e.g., panarchy theory) is challenging. We used multivariate time series modeling to identify scale-specific system organization and, by extension, apparent resilience mechanisms. We used a 20-year time series of invertebrates and phytoplankton from 26 Swedish lakes to test the proposition that a few key-structuring environmental variables at specific scales create discontinuities in community dynamics. Cross-scale structure was manifested in two independent species groups within both communities across...
Tipo: Peer-Reviewed Reports Palavras-chave: Complex adaptive systems dynamics; Complex adaptive systems organization; Cross-scale structure; Discontinuities; Environmental variables; Invertebrates; Lakes; Panarchy; Phytoplankton; Resilience; Time series modeling.
Ano: 2011
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Elevated Levels of Herbivory in Urban Landscapes: Are Declines in Tree Health More Than an Edge Effect? Ecology and Society
Christie, Fiona J; University of Sydney; christie@bio.usyd.edu.au; Hochuli, Dieter F; University of Sydney; dieter@bio.usyd.edu.au.
Urbanization is one of the most extreme and rapidly growing anthropogenic pressures on the natural world. Urban development has led to substantial fragmentation of areas of natural habitat, resulting in significant impacts on biodiversity and disruptions to ecological processes. We investigated the levels of leaf damage caused by invertebrates in a dominant canopy species in urban remnants in a highly fragmented urban landscape in Sydney, Australia, by assessing the frequency and extent of chewing and surface damage of leaves in urban remnants compared to the edges and interiors of continuous areas of vegetation. Although no difference was detected in the frequency of leaves showing signs of damage at small, edge, and interior sites, small sites suffered...
Tipo: Peer-Reviewed Reports Palavras-chave: Urban landscapes; Herbivory; Invertebrates; Urbanization; Remnant vegetation; Fragmentation; Leaf damage; Australia.
Ano: 2005
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Understanding the Risk to Neotropical Migrant Bird Species of Multiple Human-Caused Stressors: Elucidating Processes Behind the Patterns. Ecology and Society
Hames, Ralph S.; Cornell Laboratory of Ornithology; rsh5@cornell.edu; Lowe, James D.; Cornell Laboratory of Ornithology; jdl6@cornell.edu; Swarthout, Sara Barker; Cornell Laboratory of Ornithology; sb65@cornell.edu; Rosenberg, Kenneth V.; Cornell Laboratory of Ornithology; kvr2@cornell.edu.
Ubiquitous human-caused changes to the environment act as multiple stressors for organisms in the wild, and the effects of these stressors may be synergistic, rather than merely additive, with unexpected results. However, understanding how focal organisms respond to these stressors is crucial for conservation planning for these species. We propose a paradigm that alternates extensive, broadscale data collection by volunteer collaborators to document patterns of response, with intensive fine-scale studies by professional researchers, to elucidate the processes underlying these patterns. We demonstrate this technique, building on our existing work linking patterns of population declines in the Wood Thrush (Hylocichla mustelina) to synergistic effects of acid...
Tipo: Peer-Reviewed Reports Palavras-chave: Multiple scales; Synergistic effects; Citizen science; Habitat fragmentation; Acid rain; Forests; Anthropogenic change; Soil; Calcium; Invertebrates.
Ano: 2006
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The crustacean selenoproteome similarity to other arthropods homologs: A mini review Electron. J. Biotechnol.
García-Triana,Antonio; Yepiz-Plascencia,Gloria.
Selenoproteins (Sels) are involved in oxidative stress regulation. Glutathione peroxidase (GPx) and thioredoxin reductase are among the most studied Sels in crustaceans. Since their expressions and activities are affected by pathogens, environmental and metabolic factors, their functions might be key factors to orchestrate the redox cellular balance. The most studied invertebrate selenoproteome is from Drosophila. In this fly, SelD and SelB are involved in selenoproteins synthesis, whereas SelBthD, SelH and SelK are associated with embryogenesis and animal viability. None of the Sels found in Drosophila have been identified in marine crustaceans yet, and their discovery and function identification is an interesting research challenge. SelM has been...
Tipo: Journal article Palavras-chave: Functions; Invertebrates; Redox; Selenoproteins.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582012000500017
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Diversity and structure of microcrustacean assemblages (Cladocera and Copepoda) and limnological variability in perennial and intermittent pools in a semi-arid region, Bahia, Brazil Iheringia, Sér. Zool.
Simões,Nadson R.; Ribeiro,Sylvia M. M. S.; Sonoda,Sérgio L..
Temporary wetlands undergo recurrent drought due to the scarcity of water, which disrupts the hydrological connectivity with adjacent aquatic systems. However, some environments retain water for longer periods, allowing greater persistence of the community. The current study evaluated differences in the microcrustacean assemblages and limnological variability between perennial and intermittent pools in a semi-arid region of Brazil. The abiotic features (water temperature, pH, total alkalinity, electrical conductivity and depth) of intermittent pools were affected more than perennial pools due to loss of water volume. This may have contributed to a higher average richness and diversity index in some intermittent pools and differences in the structure of the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Zooplankton; Temporary wetlands; Invertebrates; "caatinga".
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212011000300006
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Invertebrados do solo em áreas de florestas natural e cultivadas no município de Capitão Poço, Pará. Infoteca-e
TEIXEIRA, L. B.; SILVA, A. de B..
bitstream/item/32762/1/CPATU-BP175.pdf
Tipo: Séries anteriores (INFOTECA-E) Palavras-chave: Fauna do solo; Invertebrado; Acarina; Capitao Poco; Pará; Brasil.; Collembola; Amazonia; Invertebrates; Soil fauna..
Ano: 1997 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/374978
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Program and abstracts... Infoteca-e
INTERNATIONAL COLLOQUIUM ON INVERTEBRATE PATHOLOGY AND MICROBIAL CONTROL, 8.; INTERNATIONAL CONFERENCE ON BACILLUS THURINGIENSIS 6.; ANNUAL MEETING OF THE SIP, 35., 2002, Foz do Iguassu..
bitstream/item/161167/1/ID-19032-final.pdf
Tipo: Documentos (INFOTECA-E) Palavras-chave: Patologia animal.; Bactéria; Bacillus thuringiensis; Controle microbiano.; Invertebrates; Animal pathology..
Ano: 2002 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/463190
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VIII internatiowal Colloquium on Invertebrate Pathology and Microbial Control. Program and abstracts. Infoteca-e
bitstream/item/79761/1/ID-34375.pdf
Tipo: Documentos (INFOTECA-E) Palavras-chave: Animal invertebrado; Invertebrates.
Ano: 2002 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/954220
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Diversidade de invertebrados no solo com diferentes coberturas vegetais no Nordeste paraense. Infoteca-e
TEIXEIRA, L. B.; SILVA, A. de B.; LEITÃO, P. da S..
bitstream/item/32775/1/CPATU-BP184.pdf
Tipo: Séries anteriores (INFOTECA-E) Palavras-chave: Fauna do solo; Mesofauna; Regiao nordeste; Pará; Brasil.; Animal Invertebrado.; Collembola; Acari; Amazonia; Invertebrates; Soil fauna..
Ano: 1998 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/376731
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Atlas des invertébrés du Golfe de Gascogne inventoriés dans les captures des chaluts. Campagnes RESSGASC 1992-1995 et EVHOE 1995 ArchiMer
Paulmier, Gerard.
Numerous invertebrates were collected during various scientific trawling surveys carried out in the Bay of Biscay (RESSGASC, EVHOE), and the adjacent areas between 1993 and 1995. The species captured by the same trawling methods used by professional fishermen represent only a fraction of the known invertebrate fauna in the Bay. In addition to an inventory of the species, a simple key allows easy access to faunistic groups. The species, some of which are economically interesting, form the subject of a short description and, for the most part, a colour illustration.
Tipo: Text Palavras-chave: Invertebrates; List; Trawling; Gulf of Biscay; Atlas; Invertébrés; Inventaire; Chalutage; Golfe de Gascogne; Atlas.
Ano: 1997 URL: http://archimer.ifremer.fr/doc/1997/rapport-709.pdf
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Les peuplements benthiques du plateau insulaire de la Martinique et des zones bathyales adjacentes. Cas particulier de la malacofaune ArchiMer
Paulmier, Gerard; Durand, Francoise.
Several oceanographic surveys in Martinique waters with, as main objectives, either geological mapping and evaluating marine aggregate resources of research into deep water carcinologie resources, nafe produced interesting informtion on benthic pppulations situated from the infralittoral to the bathyal shelf, for the wole of faunistic groups and more specifically for the malacofauna. The distribution of the various faunistic group has been analysed in function to the bathymetric, edaphic and possibly, thermic factors. The infralittoral zones, up to the 20 metres isobath, and circalittoral, between 60  and 80 metres, are known to have the richest populations. Corals, sponges, polychaete annelida and molluscs are the best represented, numerically as well as...
Tipo: Text Palavras-chave: Ecologie; Sédimentologie; Bathymétrie; Peuplements; Benthos; Invertebrés; Communautés; Bivalves; Gastéropodes; Ecology; Sedimentology; Bathymetry; Settelment; Benthos; Invertebrates; Molluscs; Communities; Bivalvia; Gastropoda.
Ano: 1997 URL: https://archimer.ifremer.fr/doc/00480/59191/61880.pdf
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Forty questions of importance to the policy and practice of native oyster reef restoration in Europe ArchiMer
Zu Ermgassen, Philine S. E.; Bonačić, Kruno; Boudry, Pierre; Bromley, Cass A.; Cameron, Tom C.; Colsoul, Bérenger; Coolen, Joop W. P.; Frankić, Anamarija; Hancock, Boze; Have, Tom M.; Holbrook, Zoë; Kamermans, Pauline; Laugen, Ane T.; Nevejan, Nancy; Pogoda, Bernadette; Pouvreau, Stephane; Preston, Joanne; Ranger, Christopher J.; Sanderson, William G.; Sas, Hein; Strand, Åsa; Sutherland, William J..
Oyster reefs are among the most threatened marine habitats globally. In Europe, oyster reefs have been extirpated from most locations within their historical range. Active restoration of the native oyster (Ostrea edulis) in Europe has grown substantially in recent years. In sharing experiences between oyster restoration projects in Europe at the Native Oyster Restoration Alliance conference, NORA2, in Edinburgh in May 2019, it became apparent that a number of similar barriers are experienced. This study identified the top 40 questions, which, if answered, would have the greatest influence on the policy and practice of oyster restoration in Europe. Initially 71 people were consulted across 28 institutions and 11 European countries to generate 194 questions....
Tipo: Text Palavras-chave: Alien species; Estuary; Fishing; Invertebrates; Pollution; Restoration; Subtidal.
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00658/77004/78261.pdf
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Seagrass organic matter transfer in Posidonia oceanica macrophytodetritus accumulations ArchiMer
Remy, François; Mascart, Thibaut; De Troch, Marleen; Michel, Loic; Lepoint, Gilles.
Seagrass ecosystems are net autotrophic systems which contribute to organic carbon burial in marine sediment. Dead seagrass leaves are often exported outside the seagrass beds and may form accumulations (exported macrophytodetritus accumulations, hereafter EMAs) from littoral zones to deepest canyons. Understanding how seagrass organic matter is channeled in its associated trophic web is necessary to assess the role of the seagrass ecosystem as blue carbon service providers. We used gut content and stable isotope analyses to delineate the Posidonia oceanica EMA food web structure and to determine the importance of detrital material in the diets of macrofauna. Evidence from gut contents and stable isotopes showed that this food web is fuelled mainly by two...
Tipo: Text Palavras-chave: Stable isotopes; Detrital pathway; Mixing models; Trophic level; Invertebrates; Mediterranean Sea; Food web.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00448/55969/57464.pdf
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Addressing critical limitations of oyster ( Ostrea edulis ) restoration: Identification of nature‐based substrates for hatchery production and recruitment in the field ArchiMer
Colsoul, Bérenger; Pouvreau, Stephane; Di Poi, Carole; Pouil, Simon; Merk, Verena; Peter, Corina; Boersma, Maarten; Pogoda, Bernadette.
The European flat oyster (Ostrea edulis) is an ecosystem engineer that provides important biogenic reef habitat with associated ecosystem functions and services. Most stocks have been commercially exploited and degraded; some are functionally extinct. Ecological restoration now aims to recover these degraded, damaged or destroyed ecosystems. Availability of seed oysters and substrate for successful larval recruitment has been identified as a major limiting factor for restoration projects in Europe. In substrate‐limited areas, restoration approaches have to involve the restoration of suitable substrates. The present study provides an evaluation of such potential substrate types. Various categories were investigated through hatchery and/or field experiments:...
Tipo: Text Palavras-chave: Coastal; Invertebrates; Restoration; Settlement; Substrates.
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00658/77058/78357.pdf
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The most vagile host as the main determinant of population connectivity in marine macroparasites ArchiMer
Feis, Marieke E.; Thieltges, David W.; Olsen, Jeanine L.; De Montaudouin, Xavier; Jensen, K. Thomas; Bazairi, Hocein; Culloty, Sarah C.; Luttikhuizen, Pieternella C..
Although molecular ecology of macroparasites is still in its infancy, general patterns are beginning to emerge, e.g. that the most vagile host in a complex life cycle is the main determinant of the population genetic structure of their parasites. This insight stems from the observation that populations of parasites with only freshwater hosts are more structured than those with terrestrial or airborne hosts. Until now, the same has not been tested for marine systems, where, in theory, a fully marine life cycle might sustain high dispersal rates because of the absence of obvious physical barriers in the sea. Here, we tested whether a marine trematode parasite that utilises migratory birds exhibited weaker population genetic structure than those whose life...
Tipo: Text Palavras-chave: Marine ecology; Population genetics; Parasite; Host parasite dynamics; Trematode; Invertebrates; Gymnophallus choledochus; Bucephalus minimus.
Ano: 2015 URL: https://archimer.ifremer.fr/doc/00375/48625/49417.pdf
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Taxonomy and distribution of the Trifurcula (Glaucolepis) raikhonae group (Lepidoptera: Nepticulidae) Naturalis
Nieukerken, E.J. van; Purplesis, R..
Trifurcula (Glaucolepis) melanoptera sp. n. is described from southern Europe, where it is widespread. It is closely related to the Central Asian T. (Glaucolepis) raikhonae Puplesis, which is redescribed. Together they form the raikhonae species group. Sinopticula Yang is here synonymized with Glaucolepis Braun, its only species S. sinica Yang is tentatively regarded as closely related, if not conspecific with T. raikhonae. The distribution is mapped. On the basis of recent Chinese findings the larvae are assumed to be gall-makers on Prunus branches. Some phylogenetic and biogeographic remarks are given.
Tipo: Article / Letter to the editor Palavras-chave: Lepidoptera; Trifurcula (Glaucolepis); Palaearctic region; Distribution & systematics; Invertebrates; Arthropods; Insects; Lepidopterans; Nepticulidae; Turkmenia; Afghanistan; Uzbekistan; Kazakhstan; Kirgistan; Tadzhikistan; China; Spain; France; Italy; Sardinia; Austria; Slovakia; Hungary; Croatia; Turkey; Ukraine; Crimea; Armenia; Turkmenia; Glaucolepis melanoptera; 42.75.
Ano: 1991 URL: http://www.repository.naturalis.nl/record/227699
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Of cavities – and kings Naturalis
Schram, Frederick R..
Review of and commentary on: Body Cavities: Function and Phylogeny, edited by G. Lanzavecchia, R. Valvassori, and M.D. Candia Carnevali. Mucchi Editore/Modena, 1995, 280 pp., ISBN 88-7000-259-4. “The time has come”, the Walrus said, “To talk of many things: Of shoes – and ships – and sealing wax – Of cabbages – and kings – And why the sea is boiling hot – And whether pigs have wings.” Louis Carroll
Tipo: Article / Letter to the editor Palavras-chave: Phylogeny; Coelom; Pseudocoelom; Invertebrates.
Ano: 1997 URL: http://www.repository.naturalis.nl/record/534406
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New and rare Nepticulidae in the Netherlands (Lepidoptera) Naturalis
Nieukerken, E.J. van.
Eleven species of Nepticulidae are recorded from the Netherlands for the first time. Eight of these have been collected as larvae during recent field work: Ecroedernia hannoverella (Glitz), E. nlediofasciella (Haworth), E. spirzosella (Joannis). E. arcz~arella (Herrich- Schaffer). Trifurcula cryptella (Stainton), Stigmella aeneofusciella (Herrich-Schaffer). S. poterii (Stainton), and S. crataegella Klimesch. On the basis of old collection material E. longicaudella Klimesch, E. bradfordi Emmet and S. svenssoni (Johansson) can be added to the list. A single specimen of E. bradfordi appears to be only the second one known. Some notes on rare species are given. S. regiella (Frey) is recorded for the first time from Belgium.
Tipo: Article / Letter to the editor Palavras-chave: Lepidoptera; Nepticuliae; Netherlands; Invertebrates; Arthropods; Insects; Lepidopterans; Nepticulidae; 42.75.
Ano: 1982 URL: http://www.repository.naturalis.nl/record/227174
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Distribuição de abundância e tamanho do corpo de invertebrados do folhiço em uma floresta de terra firme na Amazônia Central, Brasil Rev. Bras. entomol.
Cunha,Hélida Ferreira da; Diniz-Filho,José Alexandre Felizola; Brandão,Divino.
Abundace and body size distribution of invertebrates of leaf litter in Amazonian forest, Brazil. Based on 605 invertebrates sampled of the litter in an Amazonian Forest, some basic macroecological patterns for this assemblage were described. The relationship between abundance and body size, at logarithmic scale, was triangular, and the distribution of species was constrained in an asymmetric triangular envelope, that was tested using null model procedures in ECOSIM (P= 0,0002). The most abundant species were at an intermediated body size. The relationship between maximum abundance with different mean body size classes confirmed the Energetic Equivalent Rule (b = -1,069; t-0,75 = -2,13; P = 0.079). This way, species tend to consume energy from the community...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Abundance; Body size; Energetic Equivalence Rule; Invertebrates; Triangular pattern.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262003000100009
Registros recuperados: 27
Primeira ... 12 ... Última
 

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