How resource competition shapes individual life history for nonplastic growth: ungulates in seasonal food environments.

Abstract:

:We analyze an age-, size- and sex-structured model to investigate how the interplay between individual-level energy budget dynamics and the feedback of population grazing on resources shapes the individual life history and the dynamics of ungulate populations, living in a predator-free, seasonal resource environment. We formulate a dynamic energy budget model for individual energetics, which accounts for energy requirements for maintenance and growth, and possibly pregnancy and lactation. Growth in structural mass is assumed prescribed. Dynamics of energy reserves are the resultant of energy acquisition through grazing and suckling of milk and the aforementioned energy-consuming processes. The dynamic energy budget model is used as the core for an individual-based population model, which captures general features of ungulate life history and population dynamics, although it is parameterized for a particular system. Model predictions reveal a characteristic dynamic pattern, in which years with low death tolls (<10% of the population dying) alternate with a single year of high death toll (up to 40% of the population dies). In these "collapse" years almost all individuals younger than 2 years die, creating holes in the population age distribution. The die-off of these age classes is shown to be caused by the energy requirements for growth that these individuals face. Individuals between 1 and 2 years of age are more at risk than foals, because they are burdened with the legacy of a poor body condition developed throughout their first winter. The characteristic dynamic pattern is more pronounced at high levels of resource productivity. In contrast, neither a period of snow cover, during which all foraging stops, nor a dependence of fecundity on female body condition change dynamics significantly.

journal_name

Ecology

journal_title

Ecology

authors

De Roos AM,Galic N,Heesterbeek H

doi

10.1890/07-1153.1

subject

Has Abstract

pub_date

2009-04-01 00:00:00

pages

945-60

issue

4

eissn

0012-9658

issn

1939-9170

journal_volume

90

pub_type

杂志文章

相关文献

ECOLOGY文献大全
  • Parasites of Trinidadian guppies: evidence for sex- and age-specific trait-mediated indirect effects of predators.

    abstract::Predation pressure can alter the morphology, physiology, life history, and behavior of prey; each of these in turn can change how surviving prey interact with parasites. These trait-mediated indirect effects may change in direction or intensity during growth or, in sexually dimorphic species, between the sexes. The Tr...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/14-0495.1

    authors: Stephenson JF,van Oosterhout C,Mohammed RS,Cable J

    更新日期:2015-02-01 00:00:00

  • Drought sensitivity of an N2 -fixing tree may slow temperate deciduous forest recovery from disturbance.

    abstract::Increased drought intensity and frequency due to climate change may reduce the abundance and activity of nitrogen (N2 )-fixing plants, which supply new N to terrestrial ecosystems. As a result, drought may indirectly reduce ecosystem productivity through its effect on the N cycle. Here, we manipulated growing season n...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1002/ecy.2862

    authors: Minucci JM,Miniat CF,Wurzburger N

    更新日期:2019-12-01 00:00:00

  • Meta-ecosystem processes alter ecosystem function and can promote herbivore-mediated coexistence.

    abstract::Herbivory and dispersal play roles in the coexistence of primary producers with shared resource limitation by imposing trade-offs either through apparent competition or dispersal limitation. These mechanisms of coexistence can further interact with meta-ecosystem effects, which results in spatial heterogeneity through...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1002/ecy.2699

    authors: Marleau JN,Guichard F

    更新日期:2019-06-01 00:00:00

  • Trophic phylogenetics: evolutionary influences on body size, feeding, and species associations in grassland arthropods.

    abstract::Contemporary animal-plant interactions such as herbivory are widely understood to be shaped by evolutionary history. Yet questions remain about the role of plant phylogenetic diversity in generating and maintaining herbivore diversity, and whether evolutionary relatedness of producers might predict the composition of ...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/14-0784.1

    authors: Lind EM,Vincent JB,Weiblen GD,Cavender-Bares J,Borer ET

    更新日期:2015-04-01 00:00:00

  • Regional variation in the hierarchical partitioning of diversity in coral-dwelling fishes.

    abstract::The size of the regional species pool may influence local patterns of diversity. However, it is unclear whether certain spatial scales are less sensitive to regional influences than others. Additive partitioning was used to separate coral-dwelling fish diversity to its alpha and beta components, at multiple scales, in...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/07-1464.1

    authors: Belmaker J,Ziv Y,Shashar N,Connolly SR

    更新日期:2008-10-01 00:00:00

  • Feeding guild of non-host community members affects host-foraging efficiency of a parasitic wasp.

    abstract::Interactions between predator and prey, or parasitoid and host, are shaped by trait- and density-mediated processes involving other community members. Parasitoids that lay their eggs in herbivorous insects locate their hosts through infochemicals such as herbivore-induced plant volatiles (HIPVs) and host-produced kair...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/15-1300.1

    authors: De Rijk M,Yang D,Engel B,Dicke M,Poelman EH

    更新日期:2016-06-01 00:00:00

  • Consumers regulate nutrient limitation regimes and primary production in seagrass ecosystems.

    abstract::Consumer-mediated nutrient supply is increasingly recognized as an important functional process in many ecosystems. Yet, experimentation at relevant spatial and temporal scales is needed to fully integrate this bottom-up pathway into ecosystem models. Artificial reefs provide a unique approach to explore the importanc...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/12-1122.1

    authors: Allgeier JE,Yeager LA,Layman CA

    更新日期:2013-02-01 00:00:00

  • Directional changes in the species composition of a tropical forest.

    abstract::Long-term studies have revealed that the structure and dynamics of many tropical forests are changing, but the causes and consequences of these changes remain debated. To learn more about the forces driving changes within tropical forests, we investigated shifts in tree species composition over the past 25 years withi...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/10-0724.1

    authors: Feeley KJ,Davies SJ,Perez R,Hubbell SP,Foster RB

    更新日期:2011-04-01 00:00:00

  • Factors driving mortality and growth at treeline: a 30-year experiment of 92 000 conifers.

    abstract::Understanding the interplay between environmental factors contributing to treeline formation and how these factors influence different life stages remains a major research challenge. We used an afforestation experiment including 92 000 trees to investigate the spatial and temporal dynamics of tree mortality and growth...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/11-0384.1

    authors: Barbeito I,Dawes MA,Rixen C,Senn J,Bebi P

    更新日期:2012-02-01 00:00:00

  • Identifying interactions among salmon populations from observed dynamics.

    abstract::A simple direct correlation analysis of individual counts between different populations often fails to characterize the true nature of population interactions; however, the most common data type available for population studies is count data, and one of the most important objectives in population and community ecology...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/07-1270.1

    authors: Fujiwara M

    更新日期:2008-01-01 00:00:00

  • PROPAGATION OF SCALE-DEPENDENT EFFECTS FROM RECRUITS TO ADULTS IN BARNACLES AND SEAWEEDS.

    abstract::The interplay between local and large spatial scale processes in open systems is often dependent upon ecological context and species specific factors such as longevity, dispersal capability, or vulnerability to predation. When disturbance clears patches in open systems, the successful reestablishment of adult colonize...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/07-0849.1

    authors: Methratta ET,Petraitis PS

    更新日期:2008-11-01 00:00:00

  • Distance-based methods for estimating density of nonrandomly distributed populations.

    abstract::Population density is the most basic ecological parameter for understanding population dynamics and biological conservation. Distance-based methods (or plotless methods) are considered as a more efficient but less robust approach than quadrat-based counting methods in estimating plant population density. The low robus...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1002/ecy.3143

    authors: Shen G,Wang X,He F

    更新日期:2020-10-01 00:00:00

  • Compensatory responses to food restriction in juvenile green turtles (Chelonia mydas).

    abstract::The purpose of this study was to assess the compensatory responses to food restriction and subsequent increased food availability in juvenile green turtles (Chelonia mydas). Turtles were fed an ad libitum ration for 12 weeks (AL), a restricted ration for 12 weeks (R), or a restricted ration for 5 weeks and an ad libit...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/08-1835.1

    authors: Roark AM,Bjorndal KA,Bolten AB

    更新日期:2009-09-01 00:00:00

  • Episodic death across species of desert shrubs.

    abstract::Extreme events shape population and community trajectories. We report episodic mortality across common species of thousands of long-lived perennials individually tagged and monitored for 20 years in the Colorado Desert of California following severe regional drought. Demographic records from 1984 to 2004 show 15 years...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/0012-9658(2007)88[32:edasod]2.0.co;2

    authors: Miriti MN,Rodríguez-Buriticá S,Wright SJ,Howe HF

    更新日期:2007-01-01 00:00:00

  • Changes in flowering functional group affect responses of community phenological sequences to temperature change.

    abstract::Our ability to predict how temperature modifies phenology at the community scale is limited by our lack of understanding of responses by functional groups of flowering plants. These responses differ among species with different life histories. We performed a reciprocal transplant experiment along four elevation gradie...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1002/ecy.1685

    authors: Meng FD,Jiang LL,Zhang ZH,Cui SJ,Duan JC,Wang SP,Luo CY,Wang Q,Zhou Y,Li XE,Zhang LR,Li BW,Dorji T,Li YN,Du MY

    更新日期:2017-03-01 00:00:00

  • Scale-dependent effects of host patch traits on species composition in a stickleback parasite metacommunity.

    abstract::A core goal of ecology is to understand the abiotic and biotic variables that regulate species distributions and community composition. A major obstacle is that the rules governing species distributions can change with spatial scale. Here, we illustrate this point using data from a spatially nested metacommunity of pa...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1002/ecy.3181

    authors: Bolnick DI,Resetarits EJ,Ballare K,Stuart YE,Stutz WE

    更新日期:2020-12-01 00:00:00

  • Age-size plasticity for reproduction in monocarpic plants.

    abstract::Empirical and theoretical investigations of monocarpy have usually addressed the question of minimum or threshold sizes for reproduction. However, the range of flowering sizes observed in many monocarpic species is extraordinarily large (well beyond what can be called a "threshold"), and the sizes of flowering and non...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/0012-9658(2006)87[2755:apfrim]2.0.co;2

    authors: Burd M,Read J,Sanson GD,Jaffré T

    更新日期:2006-11-01 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 dimensionality of individual niche variation.

    abstract::The inherently multidimensional nature of the niche has not yet been integrated into the investigation of individual niche specialization within populations. We propose a framework for modeling the between- and within-individual components of the population niche as a set of variance-covariance matrices, which can be ...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1002/ecy.2129

    authors: Ingram T,Costa-Pereira R,Araújo MS

    更新日期:2018-03-01 00:00:00

  • A generalized approach to modeling and estimating indirect effects in ecology.

    abstract::The need to model and test hypotheses about complex ecological systems has led to a steady increase in use of path analytical techniques, which allow the modeling of multiple multivariate dependencies reflecting hypothesized causation and mechanisms. The aim is to achieve the estimation of direct, indirect, and total ...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/11-1899.1

    authors: Clough Y

    更新日期:2012-08-01 00:00:00

  • Tracing the biosynthetic source of essential amino acids in marine turtles using delta13C fingerprints.

    abstract::Plants, bacteria, and fungi produce essential amino acids (EAAs) with distinctive patterns of delta13C values that can be used as naturally occurring fingerprints of biosynthetic origin of EAAs in a food web. Because animals cannot synthesize EAAs and must obtain them from food, their tissues reflect delta13C(EAA) pat...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/13-0263.1

    authors: Arthur KE,Kelez S,Larsen T,Choy CA,Popp BN

    更新日期:2014-05-01 00:00:00

  • Partitioning the colonization and extinction components of beta diversity across disturbance gradients.

    abstract::Changes in species diversity often result from species losses and gains. The dynamic nature of beta diversity (spatial variation in species composition) that derives from such temporal species turnover, however, has received relatively little attention. Here, we disentangled extinction and colonization components of b...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1002/ecy.3183

    authors: Tatsumi S,Strengbom J,Čugunovs M,Kouki J

    更新日期:2020-12-01 00:00:00

  • Frequent fire alters nitrogen transformations in ponderosa pine stands of the inland northwest.

    abstract::Recurrent, low-severity fire in ponderosa pine (Pinus ponderosa)/interior Douglas-fir (Pseudotsuga menziesii var. glauca) forests is thought to have directly influenced nitrogen (N) cycling and availability. However, no studies to date have investigated the influence of natural fire intervals on soil processes in undi...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/0012-9658(2006)87[2511:ffanti]2.0.co;2

    authors: DeLuca TH,Sala A

    更新日期:2006-10-01 00:00:00

  • Modeling survival at multi-population scales using mark-recapture data.

    abstract::The demography of vertebrate populations is governed in part by processes operating at large spatial scales that have synchronizing effects on demographic parameters over large geographic areas, and in part, by local processes that generate fluctuations that are independent across populations. We describe a statistica...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/08-1657.1

    authors: Grosbois V,Harris MP,Anker-Nilssen T,McCleery RH,Shaw DN,Morgan BJ,Gimenez O

    更新日期:2009-10-01 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

  • Do grassland plant communities profit from N partitioning by soil depth?

    abstract::Recent biodiversity-ecosystem functioning experiments in temperate grasslands have shown that productivity positively correlates with plant species richness. Resource partitioning (in particular, nitrogen [N] partitioning) has been proposed as one possible mechanism to explain this pattern. There is evidence for inter...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/11-1439.1

    authors: Von Felten S,Niklaus PA,Scherer-Lorenzen M,Hector A,Buchmann N

    更新日期:2012-11-01 00:00:00

  • Long-term survival probability, not current habitat quality, predicts dispersal distance in a stream salamander.

    abstract::Dispersal evolves as an adaptive mechanism to optimize individual fitness across the landscape. Specifically, dispersal represents a mechanism to escape fitness costs resulting from changes in environmental conditions. Decades of empirical work suggest that individuals use local habitat cues to make movement decisions...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1002/ecy.2982

    authors: Addis BR,Lowe WH

    更新日期:2020-04-01 00:00:00

  • A depth refugium from catastrophic coral bleaching prevents regional extinction.

    abstract::Species intolerant of changing climate might avoid extinction within refugia buffered from extreme conditions. Refugia have been observed in the fossil record but are not well documented or understood on ecological time scales. Using a 37-year record from the eastern Pacific across the two most severe El Niño events o...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/13-0468.1

    authors: Smith TB,Glynn PW,Maté JL,Toth LT,Gyory J

    更新日期:2014-06-01 00:00:00

  • Trophic cascades result in large-scale coralline algae loss through differential grazer effects.

    abstract::Removal of predators can have strong indirect effects on primary producers through trophic cascades. Crustose coralline algae (CCA) are major primary producers worldwide that may be influenced by predator removal through changes in grazer composition and biomass. CCA have been most widely studied in Caribbean and temp...

    journal_title:Ecology

    pub_type: 杂志文章

    doi:10.1890/09-2059.1

    authors: O'Leary JK,McClanahan TR

    更新日期:2010-12-01 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