Fish introductions and light modulate food web fluxes in tropical streams: a whole-ecosystem experimental approach.

Abstract:

:Decades of ecological study have demonstrated the importance of top-down and bottom-up controls on food webs, yet few studies within this context have quantified the magnitude of energy and material fluxes at the whole-ecosystem scale. We examined top-down and bottom-up effects on food web fluxes using a field experiment that manipulated the presence of a consumer, the Trinidadian guppy Poecilia reticulata, and the production of basal resources by thinning the riparian forest canopy to increase incident light. To gauge the effects of these reach-scale manipulations on food web fluxes, we used a nitrogen (15 N) stable isotope tracer to compare basal resource treatments (thinned canopy vs. control) and consumer treatments (guppy introduction vs. control). The thinned canopy stream had higher primary production than the natural canopy control, leading to increased N fluxes to invertebrates that feed on benthic biofilms (grazers), fine benthic organic matter (collector-gatherers), and organic particles suspended in the water column (filter feeders). Stream reaches with guppies also had higher primary productivity and higher N fluxes to grazers and filter feeders. In contrast, N fluxes to collector-gatherers were reduced in guppy introduction reaches relative to upstream controls. N fluxes to leaf-shredding invertebrates, predatory invertebrates, and the other fish species present (Hart's killifish, Anablepsoides hartii) did not differ across light or guppy treatments, suggesting that effects on detritus-based linkages and upper trophic levels were not as strong. Effect sizes of guppy and canopy treatments on N flux rates were similar for most taxa, though guppy effects were the strongest for filter feeding invertebrates while canopy effects were the strongest for collector-gatherer invertebrates. Combined, these results extend previous knowledge about top-down and bottom-up controls on ecosystems by providing experimental, reach-scale evidence that both pathways can act simultaneously and have equally strong influence on nutrient fluxes from inorganic pools through primary consumers.

journal_name

Ecology

journal_title

Ecology

authors

Collins SM,Thomas SA,Heatherly T 2nd,MacNeill KL,Leduc AO,López-Sepulcre A,Lamphere BA,El-Sabaawi RW,Reznick DN,Pringle CM,Flecker AS

doi

10.1002/ecy.1530

subject

Has Abstract

pub_date

2016-11-01 00:00:00

pages

3154-3166

issue

11

eissn

0012-9658

issn

1939-9170

journal_volume

97

pub_type

杂志文章

相关文献

ECOLOGY文献大全
  • Spatially stochastic settlement and the coexistence of benthic marine animals.

    abstract::For sessile organisms, dispersal and recruitment are typically spatially stochastic, but there is little understanding of how this variability scales up to influence processes such as competitive coexistence. Here we argue that coexistence of benthic marine animals is enhanced by stochastic differences between species...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/10-1332.1

    authors: Edwards KF,Stachowicz JJ

    更新日期:2011-05-01 00:00:00

  • The triple helix of Plantago lanceolata: genetics and the environment interact to determine population dynamics.

    abstract::The theory of evolution via natural selection predicts that the genetic composition of wild populations changes over time in response to the environment. Different genotypes should exhibit different demographic patterns, but genetic variation in demography is often impossible to separate from environmental variation. ...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/11-0742.1

    authors: Shefferson RP,Roach DA

    更新日期:2012-04-01 00:00:00

  • Spatial location dominates over host plant genotype in structuring an herbivore community.

    abstract::Recent work has shown a potential role for both host plant genotype and spatial context in structuring insect communities. In this study, we use three separate data sets on herbivorous insects on oak (Quercus robur) to estimate the relative effects of host plant genotype (G), location (E), and the G x E interaction on...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/09-1027.1

    authors: Tack AJ,Ovaskainen O,Pulkkinen P,Roslin T

    更新日期:2010-09-01 00:00:00

  • Demand-driven resource investment in annual seed production by a perennial angiosperm precludes resource limitation.

    abstract::The limits on annual seed production have long been characterized as restriction by either pollination success or resource provision to seed development. This expected dichotomy between pollen and resource limitation is based on the assumption that reproductive resources are fixed, which is reasonable for semelparous ...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/12-0619.1

    authors: Ida TY,Harder LD,Kudo G

    更新日期:2013-01-01 00:00:00

  • Demographic drivers of functional composition dynamics.

    abstract::Mechanisms of community assembly and ecosystem function are often analyzed using community-weighted mean trait values (CWMs). We present a novel conceptual framework to quantify the contribution of demographic processes (i.e., growth, recruitment, and mortality) to temporal changes in CWMs. We used this framework to a...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1002/ecy.1990

    authors: Muscarella R,Lohbeck M,Martínez-Ramos M,Poorter L,Rodríguez-Velázquez JE,van Breugel M,Bongers F

    更新日期:2017-11-01 00:00:00

  • Resources from another place and time: responses to pulses in a spatially subsidized system.

    abstract::As the theoretical bases for the dynamics of spatially subsidized communities emerge, ecologists question whether spatially subsidized communities exhibit similar structure or dynamics to communities that receive strongly pulsed resources. In both cases, communities may be structured by responses to resources that are...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/07-0234.1

    authors: Anderson WB,Wait DA,Stapp P

    更新日期:2008-03-01 00:00:00

  • A protected area influences genotype-specific survival and the structure of a Canis hybrid zone.

    abstract::It is widely recognized that protected areas can strongly influence ecological systems and that hybridization is an important conservation issue. However, previous studies have not explicitly considered the influence of protected areas on hybridization dynamics. Eastern wolves are a species of special concern and thei...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/13-0698.1

    authors: Benson JF,Patterson BR,Mahoney PJ

    更新日期:2014-02-01 00:00:00

  • Terrestrial support of aquatic food webs depends on light inputs: a geographically-replicated test using tank bromeliads.

    abstract::Food webs of freshwater ecosystems can be subsidized by allochthonous resources. However, it is still unknown which environmental factors regulate the relative consumption of allochthonous resources in relation to autochthonous resources. Here, we evaluated the importance of allochthonous resources (litterfall) for th...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1002/ecy.1432

    authors: Farjalla VF,González AL,Céréghino R,Dézerald O,Marino NA,Piccoli GC,Richardson BA,Richardson MJ,Romero GQ,Srivastava DS

    更新日期:2016-08-01 00:00:00

  • "The upper limits of vegetation on Mauna Loa, Hawaii": a 50th-anniversary reassessment.

    abstract::In January 1958, a survey of alpine flora was conducted along a recently constructed access road across the upper volcanic slopes of Mauna Loa, Hawaii (2525-3397 m). Only five native Hawaiian species were encountered on sparsely vegetated historic and prehistoric lava flows adjacent to the roadway. A resurvey of roads...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/10-0341.1

    authors: Juvik JO,Rodomsky BT,Price JP,Hansen EW,Kueffer C

    更新日期:2011-02-01 00:00:00

  • Negative plant-soil feedbacks are stronger in agricultural habitats than in forest fragments in the tropical Andes.

    abstract::There is now strong evidence suggesting that interactions between plants and their species-specific antagonistic microbes can maintain native plant community diversity. In contrast, the decay in diversity in plant communities invaded by nonnative plant species might be caused by weakening negative feedback strengths, ...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1002/ecy.2850

    authors: Pizano C,Kitajima K,Graham JH,Mangan SA

    更新日期:2019-12-01 00:00:00

  • Supporting Spartina: Interdisciplinary perspective shows Spartina as a distinct solid genus.

    abstract::In 2014, a DNA-based phylogenetic study confirming the paraphyly of the grass subtribe Sporobolinae proposed the creation of a large monophyletic genus Sporobolus, including (among others) species previously included in the genera Spartina, Calamovilfa, and Sporobolus. Spartina species have contributed substantially (...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1002/ecy.2863

    authors: Bortolus A,Adam P,Adams JB,Ainouche ML,Ayres D,Bertness MD,Bouma TJ,Bruno JF,Caçador I,Carlton JT,Castillo JM,Costa CSB,Davy AJ,Deegan L,Duarte B,Figueroa E,Gerwein J,Gray AJ,Grosholz ED,Hacker SD,Hughes AR,Mate

    更新日期:2019-11-01 00:00:00

  • Kelp beds and their local effects on seawater chemistry, productivity, and microbial communities.

    abstract::Kelp forests are known as key habitats for species diversity and macroalgal productivity; however, we know little about how these biogenic habitats interact with seawater chemistry and phototroph productivity in the water column. We examined kelp forest functions at three locales along the Olympic Peninsula of Washing...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1002/ecy.2798

    authors: Pfister CA,Altabet MA,Weigel BL

    更新日期:2019-10-01 00:00:00

  • Rapid recovery of ecosystem function following extreme drought in a South African savanna grassland.

    abstract::Climatic extremes, such as severe drought, are expected to increase in frequency and magnitude with climate change. Thus, identifying mechanisms of resilience is critical to predicting the vulnerability of ecosystems. An exceptional drought (

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1002/ecy.2983

    authors: Wilcox KR,Koerner SE,Hoover DL,Borkenhagen AK,Burkepile DE,Collins SL,Hoffman AM,Kirkman KP,Knapp AK,Strydom T,Thompson DI,Smith MD

    更新日期:2020-04-01 00:00:00

  • Role of multidecadal climate variability in a range extension of pinyon pine.

    abstract::Evidence from woodrat middens and tree rings at Dutch John Mountain (DJM) in northeastern Utah reveal spatiotemporal patterns of pinyon pine (Pinus edulis Engelm.) colonization and expansion in the past millennium. The DJM population, a northern outpost of pinyon, was established by long-distance dispersal (approximat...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/0012-9658(2006)87[1124:romcvi]2.0.co;2

    authors: Gray ST,Betancourt JL,Jackson ST,Eddy RG

    更新日期:2006-05-01 00:00:00

  • Survival trade-offs between two predator-induced phenotypes in Pacific treefrogs (Pseudacris regilla).

    abstract::In many organisms, specific predator species induce defensive phenotypes that are qualitatively different from the phenotypes induced by other predator species. This differential induction implies that there is no optimal phenotype that works best against all predators. However, few studies have actually tested the hy...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/05-0381

    authors: Benard MF

    更新日期:2006-02-01 00:00:00

  • Feedbacks between bivalve density, flow, and suspended sediment concentration on patch stable states.

    abstract::We explore the role of biophysical feedbacks occurring at the patch scale (spatial scale of tens of meters) that influence bivalve physiological condition and affect patch stability by developing a numerical model for the pinnid bivalve, Atrina zelandica, in cohesive sediments. Simulated feedbacks involve bivalve dens...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/0012-9658(2006)87[2862:fbbdfa]2.0.co;2

    authors: Coco G,Thrush SF,Green MO,Hewitt JE

    更新日期:2006-11-01 00:00:00

  • Predicting invertebrate herbivory from plant traits: polycultures show strong nonadditive effects.

    abstract::Plant functional traits affect the capacity of herbivores to find, choose, and consume plants. However, in a community composed of different plant species, it is unclear what proportion of herbivory on a focal plant is explained by its own traits and which is explained by the characteristics of the surrounding vegetat...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/12-2063.1

    authors: Loranger J,Meyer ST,Shipley B,Kattge J,Loranger H,Roscher C,Wirth C,Weisser WW

    更新日期:2013-07-01 00:00:00

  • Avian Fruit Removal: Effects of Fruit Variation, Crop Size, and Insect Damage.

    abstract::Avian dispersal of seeds of the wild olive tree (Olea europaea var. sylvestris) was studied in Mediterranean shrubland, southern Spain. Fourteen species of small frugivorous birds in the genera Sylvia, Turdus, Sturnus, and Erithacus accounted for 97.4% of the fruits consumed by birds. The significance of each bird spe...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.2307/1939863

    authors: Jordano P

    更新日期:1987-12-01 00:00:00

  • Fecundity and the demographic strategies of coral morphologies.

    abstract::Understanding species differences in demographic strategies is a fundamental goal of ecology. In scleractinian corals, colony morphology is tightly linked with many demographic traits, such as size-specific growth and morality. Here we test how well morphology predicts the colony size-fecundity relationship in eight s...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1002/ecy.1588

    authors: Álvarez-Noriega M,Baird AH,Dornelas M,Madin JS,Cumbo VR,Connolly SR

    更新日期:2016-12-01 00:00:00

  • A practical guide for combining data to model species distributions.

    abstract::Understanding and accurately modeling species distributions lies at the heart of many problems in ecology, evolution, and conservation. Multiple sources of data are increasingly available for modeling species distributions, such as data from citizen science programs, atlases, museums, and planned surveys. Yet reliably...

    journal_title:Ecology

    pub_type: 杂志文章,评审

    doi:10.1002/ecy.2710

    authors: Fletcher RJ Jr,Hefley TJ,Robertson EP,Zuckerberg B,McCleery RA,Dorazio RM

    更新日期:2019-06-01 00:00:00

  • Updated distribution maps for neotropical bats in the superfamily Noctilionoidea.

    abstract::The IUCN provides a spatial database for many species, including terrestrial mammals. This database includes shapefiles with taxonomic information and the extent of occurrence for each species, and has been used in hundreds of studies in ecology, biogeography and conservation. Here we provide updated distribution maps...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1002/ecy.2404

    authors: Rojas D,Moreira M,Ramos Pereira MJ,Fonseca C,Dávalos LM

    更新日期:2018-09-01 00:00:00

  • The sexual neighborhood through time: competition and facilitation for pollination in Lobelia cardinalis.

    abstract::Reproductive success in flowering plants is influenced by the morphology and timing of reproductive structures as well as the density of surrounding conspecifics. In species with separate male and female flower phases, successful pollen transfer is also expected to vary with the density and ratio of surrounding male a...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/13-0447.1

    authors: Bartkowska MP,Johnston MO

    更新日期:2014-04-01 00:00:00

  • Mammalian tolerance to humans is predicted by body mass: evidence from long-term archives.

    abstract::Humans are implicated as a major driver of species extinctions from the Late Pleistocene to the present. However, our predictive understanding of human-caused extinction remains poor due to the restricted temporal and spatial scales at which this process is typically assessed, and the risks of bias due to "extinction ...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1002/ecy.2783

    authors: Crees JJ,Turvey ST,Freeman R,Carbone C

    更新日期:2019-09-01 00:00:00

  • A nonlinear regression approach to test for size-dependence of competitive ability.

    abstract::An individual's competitive ability is often dependent on its size, but the methods commonly used to analyze plant competition experiments generally assume that the outcome of interactions are size independent. A method for the analysis of experiments with paired competition treatments based on nonlinear regression wi...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/0012-9658(2006)87[1452:anratt]2.0.co;2

    authors: Lamb EG,Cahill JF,Dale MR

    更新日期:2006-06-01 00:00:00

  • The role of environmental variables in structuring landscape-scale species distributions in seafloor habitats.

    abstract::Ongoing statistical sophistication allows a shift from describing species' spatial distributions toward statistically disentangling the possible roles of environmental variables in shaping species distributions. Based on a landscape-scale benthic survey in the Dutch Wadden Sea, we show the merits of spatially explicit...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/09-2040.1

    authors: Kraan C,Aarts G,Van der Meer J,Piersma T

    更新日期:2010-06-01 00:00:00

  • Novel co-occurrence of functionally redundant consumers induced by range expansion alters community structure.

    abstract::Ongoing climate change is shifting the geographic distributions of some species, potentially imposing rapid changes in local community structure and ecosystem functioning. Besides changes in population-level interspecific interactions, such range shifts may also cause changes in functional structure within the host as...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1002/ecy.3150

    authors: Aguilera MA,Valdivia N,Broitman BR,Jenkins SR,Navarrete SA

    更新日期:2020-11-01 00:00:00

  • Reddened seascapes: experimentally induced shifts in 1/f spectra of spatial variability in rocky intertidal assemblages.

    abstract::Ecological tests of 1/f-noise models have advanced our understanding of how environmental fluctuations affect population abundance and species distributions. Most empirical studies have been conducted under controlled laboratory conditions and have focused on individual drivers. We present the results of a four-year f...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/12-1293.1

    authors: Tamburello L,Bulleri F,Bertocci I,Maggi E,Benedetti-Cecchi L

    更新日期:2013-05-01 00:00:00

  • Quantity and quality: unifying food web and ecosystem perspectives on the role of resource subsidies in freshwaters.

    abstract::Although the study of resource subsidies has emerged as a key topic in both ecosystem and food web ecology, the dialogue over their role has been limited by separate approaches that emphasize either subsidy quantity or quality. Considering quantity and quality together may provide a simple, but previously unexplored, ...

    journal_title:Ecology

    pub_type: 杂志文章,评审

    doi:10.1890/10-2240.1

    authors: Marcarelli AM,Baxter CV,Mineau MM,Hall RO Jr

    更新日期:2011-06-01 00:00:00

  • Examining the coupling of carbon and nitrogen cycles in Appalachian streams: the role of dissolved organic nitrogen.

    abstract::Although regional and global models of nitrogen (N) cycling typically focus on nitrate, dissolved organic nitrogen (DON) is the dominant form of nitrogen export from many watersheds and thus the dominant form of dissolved N in many streams. Our understanding of the processes controlling DON export from temperate fores...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/10-0899.1

    authors: Lutz BD,Bernhardt ES,Roberts BJ,Mulholland PJ

    更新日期:2011-03-01 00:00:00

  • A distributed experiment demonstrates widespread sodium limitation in grassland food webs.

    abstract::Sodium (Na) has a unique role in food webs as a nutrient primarily limiting for plant consumers, but not other trophic levels. Environmental Na levels vary with proximity to coasts, local geomorphology, climate, and with anthropogenic inputs (e.g., road salt). We tested two key predictions across 54 grasslands in Nort...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1002/ecy.2600

    authors: Welti EAR,Sanders NJ,de Beurs KM,Kaspari M

    更新日期:2019-03-01 00:00:00