Spatial dynamics of benthic competition on coral reefs.


:The community structure of sedentary organisms is largely controlled by the outcome of direct competition for space. Understanding factors defining competitive outcomes among neighbors is thus critical for predicting large-scale changes, such as transitions to alternate states within coral reefs. Using a spatially explicit model, we explored the importance of variation in two spatial properties in benthic dynamics on coral reefs: (1) patterns of herbivory are spatially distinct between fishes and sea urchins and (2) there is wide variation in the areal extent into which different coral species can expand. We reveal that the size-specific, competitive asymmetry of corals versus fleshy algae highlights the significance of spatial patterning of herbivory and of coral growth. Spatial dynamics that alter the demographic importance of coral recruitment and maturation have profound effects on the emergent structure of the reef benthic community. Spatially constrained herbivory (as by sea urchins) is more effective than spatially unconstrained herbivory (as by many fish) at opening space for the time needed for corals to settle and to recruit to the adult population. Further, spatially unconstrained coral growth (as by many branching coral species) reduces the number of recruitment events needed to fill a habitat with coral relative to more spatially constrained growth (as by many massive species). Our model predicts that widespread mortality of branching corals (e.g., Acropora spp) and herbivorous sea urchins (particularly Diadema antillarum) in the Caribbean has greatly reduced the potential for restoration across the region.






Sandin SA,McNamara DE




Has Abstract


2012-04-01 00:00:00












  • The landscape complexity relevance to farming effect assessment on small mammal occupancy in Argentinian farmlands.

    abstract::The responses of organisms to organic farming depend on the taxonomic group and landscape complexity. Following the intermediate landscape complexity hypothesis, organic farming can compensate for the lack of complexity in simple landscapes. Argentinian farmlands are simple with large fields and scarce linear habitat ...


    pub_type: 杂志文章


    authors: Serafini VN,Coda JA,Contreras F,Conroy MJ,Gomez MD,Priotto JW

    更新日期:2019-12-01 00:00:00

  • Demography and life history characteristics of two honey bee races (Apis mellifera).

    abstract::Intra-colony demography and life history characteristics of neotropical Africanized and temperate European honey bearaces were compared under simulated feral conditions. Major differences in colony demography were found which nevertheless resulted in some similar reproductive characteristics. European colonies were la...


    pub_type: 杂志文章


    authors: Winston ML,Dropkin JA,Taylor OR

    更新日期:1981-03-01 00:00:00

  • Effects of plant density and nutrient levels on fruit polymorphism in Atriplex sagittata.

    abstract::Atriplex sagittata is a heterocarpic species producing three types of fruits which differ in morphology and ecological properties. This study focused on variation in biomass allocation into particular fruit types under different density and fertilization levels. The reduction in total weight under stressful conditions...


    pub_type: 杂志文章


    authors: Mandák B,Pyšek P

    更新日期:1999-04-01 00:00:00

  • The developmental dynamics of Tipula paludosa and the relation of climate to its growth pattern, flight season and geographical distribution.

    abstract::The model of Meats (1974a) is tested against Laughlin's (1967a) data on growth in the field. A good measure of agreement is found. The model is then used to investigate the consequences of the univoltine T. paludosa starting its life cycle (flight season) at various dates in the range quoted by Coulson (1962)-i.e. fro...


    pub_type: 杂志文章


    authors: Meats A

    更新日期:1975-06-01 00:00:00

  • Performance of two Picea abies (L.) Karst. stands at different stages of decline : I. Carbon relations and stand growth.

    abstract::This is the first in a series of papers on the growth, photosynthetic rate, water and nutrient relations, root distribution and mycorrhizal frequency of two Norway spruce forests at different stages of decline. One of the stands was composed of green trees only while the other included trees ranging in appearance from...


    pub_type: 杂志文章


    authors: Oren R,Schulze E-,Werk KS,Meyer J,Schneider BU,Heilmeier H

    更新日期:1988-02-01 00:00:00

  • Effects of canopy structure and species diversity on primary production in upper Great Lakes forests.

    abstract::Canopy structure and tree species diversity, shaped by succession, disturbance, and community composition, are linked to numerous ecosystem functions, including net primary production (NPP). Understanding of how ecosystem structural metrics are interrelated and mechanistically link to NPP, however, is incomplete. We c...


    pub_type: 杂志文章


    authors: Scheuermann CM,Nave LE,Fahey RT,Nadelhoffer KJ,Gough CM

    更新日期:2018-10-01 00:00:00

  • Complex interactions in the control of coral zonation on a Caribbean reef flat.

    abstract::This study uses short-term assays and long-term transplant experiments to document the potential importance of fish predation and herbivory to the distribution and abundance of reef-building corals in a Caribbean back-reef system. Experimental manipulations of fish access reveal that the zonal patterns of the two reef...


    pub_type: 杂志文章


    authors: Littler MM,Taylor PR,Littler DS

    更新日期:1989-08-01 00:00:00

  • Species traits and environmental conditions govern the relationship between biodiversity effects across trophic levels.

    abstract::Changing environments can have divergent effects on biodiversity-ecosystem function relationships at alternating trophic levels. Freshwater mussels fertilize stream foodwebs through nutrient excretion, and mussel species-specific excretion rates depend on environmental conditions. We asked how differences in mussel di...


    pub_type: 杂志文章


    authors: Spooner DE,Vaughn CC,Galbraith HS

    更新日期:2012-02-01 00:00:00

  • Effects of seasonal changes in the Midwest on Crassulacean Acid Metabolism (CAM) in Opuntia humifusa Raf.

    abstract::Seasonal changes in the Crassulacean Acid Metabolism (CAM) activity and growth characteristics of Opuntia humifusa Raf. were examined under midwest climatic conditions. Twenty-four hour studies were done at monthly intervals for two years, with diurnal changes in transpiration, gas exchange, and titratable acidity mon...


    pub_type: 杂志文章


    authors: Koch KE,Kennedy RA

    更新日期:1980-01-01 00:00:00

  • Streuabbau in Laubwäldern : Untersuchungen in kalk- und sauerhumusbuchenwäldern.

    abstract::In the "Solling-Projekt" (IBP) of the "Deutsche Forschungsgemeinschaft" the decomposition of different qualities of leaves in acid soil (Solling) and in lime soil (Göttinger Wald) was studied under various conditions (October 1973-October 1974).Plastic rings were used as litter bags in the following way: on the bottom...


    pub_type: 杂志文章


    authors: Herlitzius R,Herlitzius H

    更新日期:1977-06-01 00:00:00

  • Evaluating δ(15)N-body size relationships across taxonomic levels using hierarchical models.

    abstract::Ecologists routinely set out to estimate the trophic position of individuals, populations, and species composing food webs, and nitrogen stable isotopes (δ(15)N) are a widely used proxy for trophic position. Although δ(15)N values are often sampled at the level of individuals, estimates and confidence intervals are fr...


    pub_type: 杂志文章


    authors: Reum JC,Marshall KN

    更新日期:2013-12-01 00:00:00

  • Ontogenetic changes in leaf traits of tropical rainforest trees differing in juvenile light requirement.

    abstract::Relationships between leaf traits and the gap dependence for regeneration, and ontogenetic changes therein, were investigated in juvenile and adult tropical rainforest tree species. The juveniles of the 17 species included in the study were grown in high light, similar to the exposed crowns of the adult trees. The tra...


    pub_type: 杂志文章


    authors: Houter NC,Pons TL

    更新日期:2012-05-01 00:00:00

  • A potential role for parasites in the maintenance of color polymorphism in urban birds.

    abstract::Urbanization is a major challenge for biodiversity conservation, yet the evolutionary processes taking place in urbanized areas remain poorly known. Human activities in cities set new selective forces in motion which need to be investigated to predict the evolutionary responses of animal species living in urban areas....


    pub_type: 杂志文章


    authors: Jacquin L,Récapet C,Prévot-Julliard AC,Leboucher G,Lenouvel P,Erin N,Corbel H,Frantz A,Gasparini J

    更新日期:2013-11-01 00:00:00

  • Responses of a top and a meso predator and their prey to moon phases.

    abstract::We compared movement patterns and rhythms of activity of a top predator, the Iberian lynx Lynx pardinus, a mesopredator, the red fox Vulpes vulpes, and their shared principal prey, the rabbit Oryctolagus cuniculus, in relation to moon phases. Because the three species are mostly nocturnal and crepuscular, we hypothesi...


    pub_type: 杂志文章


    authors: Penteriani V,Kuparinen A,del Mar Delgado M,Palomares F,López-Bao JV,Fedriani JM,Calzada J,Moreno S,Villafuerte R,Campioni L,Lourenço R

    更新日期:2013-11-01 00:00:00

  • Linking limitation to species composition: importance of inter- and intra-specific variation in grazing resistance.

    abstract::Short-term responses of producers highlight that key nutrients (e.g., N, P)-or combinations of these nutrients-limit primary production in aquatic and terrestrial ecosystems. These discoveries continue to provide highly valuable insights, but it remains important to ask whether nutrients always predominantly limit pro...


    pub_type: 杂志文章


    authors: Darcy-Hall TL,Hall SR

    更新日期:2008-04-01 00:00:00

  • On spatiotemporal patchiness and the coexistence of five species of Chronogaster (Nematoda: Chronogasteridae) in a riparian wetland.

    abstract::Spatiotemporal patchiness in the soil environment is thought to be crucial for the maintenance of soil biodiversity. It provides diverse microhabitats (allowing resource partitioning), and presents these in a complex mosaic, such that competitors may be spatially and temporally separated (promoting patch dynamics). Th...


    pub_type: 杂志文章


    authors: Ettema CH,Rathbun SL,Coleman DC

    更新日期:2000-11-01 00:00:00

  • The intensity of interference varies with food density: support for behaviour-based models of interference.

    abstract::Dolman (1995) measured the intake rates of snow buntings feeding on seed patches at difference bird densities, for each of two different seed densities. Interference occurred in the low food density treatment, with intake rate declining at high bird densities, but did not occur in the high food density treatment. Dolm...


    pub_type: 杂志文章


    authors: Moody AL,Ruxton GD

    更新日期:1996-11-01 00:00:00

  • Respiratory patterns and metabolism in tenebrionid and carabid beetles from the Simpson Desert, Australia.

    abstract::The respiratory physiology of four species of Australian desert-dwelling beetle was examined using a flow-through respirometry system over the temperature range of 20-40°C. The two species of tenebrionid beetles (Heleus waitei and Pterohelaeus sp.) did not exhibit the discontinuous gas exchange cycles (DGC), a mechani...


    pub_type: 杂志文章


    authors: Duncan FD,Dickman CR

    更新日期:2001-12-01 00:00:00

  • Comparative water use and nitrogen relationships in a mistletoe and its host.

    abstract::The impact of the xylem-tapping mistletoe Phoradendron juniperinum on the nitrogen and water relations of its host Juniperus osteosperma was investigated under natural field conditions. Leaf conductance, leaf water potential, and leaf Kjeldahl nitrogen contents were followed through the growing season on mistletoes, i...


    pub_type: 杂志文章


    authors: Ehleringer JR,Cook CS,Tieszen LL

    更新日期:1986-01-01 00:00:00

  • Zooplankton competition promotes trade-offs affecting diapause in rotifers.

    abstract::Facultative diapause should be favoured by natural selection in temporary variable habitats. Diapause patterns are evolutionary constrained because producing diapause is resource demanding, which might have implications for competitive dynamics and competitor coexistence through mechanisms such as the storage effect. ...


    pub_type: 杂志文章


    authors: Aránguiz-Acuña A,Ramos-Jiliberto R,Serra M

    更新日期:2015-01-01 00:00:00

  • Spatial and temporal patterns of seed attack and germination in a large-seeded neotropical tree species.

    abstract::It has long been argued that seed dispersal enhances recruitment in tropical trees by allowing offspring to `escape' strong density/distance-dependent attack by insects, pathogens and rodents. Here we examined the effects of canopy openness and parent-offspring distance upon the frequency and timing of Chlorocardium r...


    pub_type: 杂志文章


    authors: Hammond DS,Brown VK,Zagt R

    更新日期:1999-05-01 00:00:00

  • The influence of vines on an oligohaline marsh community: results of a removal and fertilization study.

    abstract::The effects of competitive suppression by vines on the non-vine plant community have received little attention in temperate habitats. This study investigated the impact vines have on their herbaceous hosts in a wetland community at two soil fertility levels. Plots in an oligohaline marsh were treated in a 2 × 2 factor...


    pub_type: 杂志文章


    authors: Gough L,Grace JB

    更新日期:1997-10-01 00:00:00

  • Epidemiology of anther-smut disease (Microbotryum violaceum) and numeric regulation of populations ofSilene dioica.

    abstract::The interaction between the anther smutMicrobotryum violaceum and its hostSilene dioica was studied during 1985-1990 in 47 populations of different ages, sizes and densities, in an archipelago area in northern Sweden. The sizes of these populations had also been surveyed in the early 1970s. Our results indicate that e...


    pub_type: 杂志文章


    authors: Carlsson U,Elmqvist T

    更新日期:1992-07-01 00:00:00

  • Vector activity and propagule size affect dispersal potential by vertebrates.

    abstract::Many small organisms in various life stages can be transported in the digestive system of larger vertebrates, a process known as endozoochory. Potential dispersal distances of these "propagules" are generally calculated after monitoring retrieval in experiments with resting vector animals. We argue that vectors in nat...


    pub_type: 杂志文章


    authors: van Leeuwen CH,Tollenaar ML,Klaassen M

    更新日期:2012-09-01 00:00:00

  • Consistent community genetic effects in the context of strong environmental and temporal variation in Eucalyptus.

    abstract::Provenance translocations of tree species are promoted in forestry, conservation, and restoration in response to global climate change. While this option is driven by adaptive considerations, less is known of the effects translocations can have on dependent communities. We investigated the relative importance and cons...


    pub_type: 杂志文章


    authors: Gosney BJ,Potts BM,Forster LG,Whiteley C,O'Reilly-Wapstra JM

    更新日期:2021-01-20 00:00:00

  • Are geckos useful bioindicators of air pollution?

    abstract::The response of an Australian arid-zone gecko community to sulphur dioxide and salt spray from a mine and industrial site was investigated from 1992 to 1995. Geckos were abundant and fecund at control sites in chenopod shrubland and annual capture rates were strongly influenced by minimum night temperatures. Capture r...


    pub_type: 杂志文章


    authors: Read JL

    更新日期:1998-04-01 00:00:00

  • The effect of proboscis and corolla tube lengths on patterns and rates of flower visitation by bumblebees.

    abstract::The rates at which bumblebees of different proboscis lengths forage on flowers of a series of corolla tube lengths were determined. The results indicate significant correlations between proboscis length and time spent by bees on flowers. Bumblebees of long proboscis length can forage significantly faster than bees of ...


    pub_type: 杂志文章


    authors: Inouye DW

    更新日期:1980-05-01 00:00:00

  • Effects of stream predator richness on the prey community and ecosystem attributes.

    abstract::It is important to understand the role that different predators can have to be able to predict how changes in the predator assemblage may affect the prey community and ecosystem attributes. We tested the effects of different stream predators on macroinvertebrates and ecosystem attributes, in terms of benthic algal bio...


    pub_type: 杂志文章


    authors: Nilsson E,Olsson K,Persson A,Nyström P,Svensson G,Nilsson U

    更新日期:2008-10-01 00:00:00

  • Traits underpinning desiccation resistance explain distribution patterns of terrestrial isopods.

    abstract::Predicted changes in soil water availability regimes with climate and land-use change will impact the community of functionally important soil organisms, such as macro-detritivores. Identifying and quantifying the functional traits that underlie interspecific differences in desiccation resistance will enhance our abil...


    pub_type: 杂志文章


    authors: Dias AT,Krab EJ,Mariën J,Zimmer M,Cornelissen JH,Ellers J,Wardle DA,Berg MP

    更新日期:2013-07-01 00:00:00

  • The influence of conditioning on olfactory microhabitat and host location in Asobara tabida (Nees) and A. rufescens (Foerster) (Braconidae: Alysiinae) larval parasitoids of Drosophilidae.

    abstract::Olfactory responses of parasitoids can be variable. This was shown by olfactometer experiments with females of two sibling Asobara species, larval endoparasitoids of Drosophilidae. Oviposition experiences of adult female parasitoids significantly altered their behavioural responses in microhabitat and host location. F...


    pub_type: 杂志文章


    authors: Vet LE,van Opzeeland K

    更新日期:1984-08-01 00:00:00