Abstract:
:Determining the relative contributions of intrinsic and extrinsic processes to the regulation of biological populations has been a recurrent ecological issue. Recent discussions concerning ecosystem "regime shifts" again raise the question of whether population fluctuations are mainly controlled by external forcing. Results of nonlinear time series analyses indicate that pelagic populations typically do not passively track stochastic environmental variables. Rather, population dynamics are better described as nonlinear amplification of physical forcing by biological interactions. However, we illustrate that in some cases populations do show linear tracking of the physical environment. To explain why population dynamics can sometimes be linear, we propose the linear tracking window hypothesis: populations are most likely to track the stochastic environmental forcing when their generation time matches the characteristic time scale of the environmental signal. While our observations follow this hypothesis well, our results indicate that the linear tracking window is a necessary but not a sufficient condition.
journal_name
Ecologyjournal_title
Ecologyauthors
Hsieh CH,Ohman MDdoi
10.1890/0012-9658(2006)87[1932:brteft]2.0.co;2subject
Has Abstractpub_date
2006-08-01 00:00:00pages
1932-8issue
8eissn
0012-9658issn
1939-9170journal_volume
87pub_type
杂志文章相关文献
ECOLOGY文献大全abstract::Bigeye tuna are known for remarkable daytime vertical migrations between deep water, where food is abundant but the water is cold, and the surface, where water is warm but food is relatively scarce. Here we investigate if these dive patterns can be explained by dynamic optimal foraging theory, where the tuna maximizes...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/15-1130.1
更新日期:2016-07-01 00:00:00
abstract::We provide algebraic simplifications for the redundancy analysis (RDA) eigenvalue and the canonical correspondence analysis (CCA) eigenvalue in the special case of permanent plots sampled twice. The indices for RDA and CCA are interrelated and are intuitively interpretable. These simplifications also apply to simple s...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/07-0842.1
更新日期:2008-06-01 00:00:00
abstract::Recent advances in ecological niche modeling (ENM) algorithms, in conjunction with increasing availability of geographic information system (GIS) data, allow species' niches to be predicted over broad geographic areas using environmental characteristics associated with point localities for a given species. Consequentl...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/0012-9658(2006)87[29:paoteo]2.0.co;2
更新日期:2006-07-01 00:00:00
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
更新日期:2006-06-01 00:00:00
abstract::For animals living in natural or semi-natural settings, empirical data on how sociality changes in response to increasing population density are few, especially with respect to true conspecific density and not group size. However, insight into this line of research may be far-reaching--from understanding density depen...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/11-0020.1
更新日期:2012-01-01 00:00:00
abstract::As they return to spawn and die in their natal streams, anadromous, semelparous fishes such as Pacific salmon import marine-derived nutrients to otherwise nutrient-poor freshwater and riparian ecosystems. Diverse organisms exploit this resource, and previous studies have indicated that riparian tree growth may be enha...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1002/ecy.2453
更新日期:2018-11-01 00:00:00
abstract::Early environmental conditions can influence the pattern of growth and development. While poor conditions generally cause slower growth, normal adult size can still be reached if growth accelerates or is prolonged once conditions improve, but such catch-up growth may have deleterious effects later in life. Here we inv...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/11-0890.1
更新日期:2012-04-01 00:00:00
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
更新日期:2019-06-01 00:00:00
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
更新日期:2019-10-01 00:00:00
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
更新日期:2019-03-01 00:00:00
abstract::Predators play a key role in shaping natural ecosystems, and understanding the factors that influence a predator's kill rate is central to predicting predator-prey dynamics. While prey density has a well-established effect on predation, it is increasingly apparent that predator density also can critically influence pr...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/15-1535.1
更新日期:2016-04-01 00:00:00
abstract::Sensitivity and elasticity analysis of population projection matrices (PPMs) are established tools in the analysis of structured populations, allowing comparison of the contributions made by different demographic rates to population growth. In some commonly used structures of PPM, however, there are mathematically ine...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/08-1188.1
更新日期:2009-11-01 00:00:00
abstract::Phenotypic plasticity can be a passive response to fluctuating environmental conditions or an active and presumably adaptive (evolved) response selected for in different environments. Here we ask if the larval decision to enter diapause when reared on a host plant associated with a colder habitat is an active or a pas...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/09-0328.1
更新日期:2010-01-01 00:00:00
abstract::Recent theory predicts that stochastic dilution effects may result in species-rich communities with statistically independent species spatial distributions, even if the underlying ecological processes structuring the community are driven by deterministic niche differences. Stochastic dilution is a consequence of the s...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/14-2357.1
更新日期:2016-02-01 00:00:00
abstract::We examined the relationship between the isolation of experimental aquatic mesocosms and the abundance of an aquatic insect colonist, Notonecta irrorata, over two years. We used a curve-fitting approach to assess whether linear or quadratic models better describe the relationship between isolation and abundance. For t...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/08-1785.1
更新日期:2009-09-01 00:00:00
abstract::Evidence accumulates about the role of arbuscular mycorrhizal (AM) fungi in shaping plant communities, but little is known about the factors determining the biomass and coexistence of several types of AM fungi in a plant community. Here, using a consumer-resource framework that treats the relationship between plants a...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1002/ecy.2080
更新日期:2018-02-01 00:00:00
abstract::Inducible defenses are dynamic traits that modulate the strength of both plant-herbivore and herbivore-carnivore interactions. Surprisingly few studies have considered the relative contributions of induced plant and herbivore defenses to the overall balance of bottom-up and top-down control. Here we compare trophic ca...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/07-1731.1
更新日期:2007-10-01 00:00:00
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
更新日期:2009-10-01 00:00:00
abstract::Some species have disproportionate influence on assemblage structure, given their numbers or biomass. Most examples of such "strong interactors" come from small-scale experiments or from observations of the effects of invasive species. There is evidence that entire avian assemblages in open woodlands can be influenced...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/10-2340.1
更新日期:2012-03-01 00:00:00
abstract::The ecological drivers of soil biodiversity in the Southern Hemisphere remain underexplored. Here, in a continental survey comprising 647 sites, across 58 degrees of latitude between tropical Australia and Antarctica, we evaluated the major ecological patterns in soil biodiversity and relative abundance of ecological ...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1002/ecy.2137
更新日期:2018-03-01 00:00:00
abstract::A principal impact of invasive species is that they reduce local species richness. However, it is unknown whether the magnitude of the richness decrease has been consistent over the past two decades of published research. We used cumulative meta-analysis to synthesize evidence from 240 articles evaluating whether this...
journal_title:Ecology
pub_type: 杂志文章,meta分析
doi:10.1002/ecy.3082
更新日期:2020-08-01 00:00:00
abstract::Animals can be important in nutrient cycling in particular ecosystems, but few studies have examined how this importance varies along environmental gradients. In this study we quantified the nutrient cycling role of an abundant detritivorous fish species, the gizzard shad (Dorosoma cepedianum), in reservoir ecosystems...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/0012-9658(2006)87[1696:ncbfsr]2.0.co;2
更新日期:2006-07-01 00:00:00
abstract::In fewer than two decades after invading the Americas, the European fly Drosophila subobscura evolved latitudinal clines in several traits. Moreover, its chromosomal inversion frequencies at given localities have shifted with climate warming. Temperature may have driven the evolution of both geographic clines and with...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/09-0097.1
更新日期:2009-07-01 00:00:00
abstract::Obtaining reliable predictions of species range shifts under climate change is a crucial challenge for ecologists and stakeholders. At the continental scale, niche-based models have been widely used in the last 10 years to predict the potential impacts of climate change on species distributions all over the world, alt...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/08-0134.1
更新日期:2009-05-01 00:00:00
abstract::Consumers can alter decomposition rates through both feces and selective feeding in many ecosystems, but these combined effects have seldom been examined in tropical ecosystems. Members of the detrital food web (litter-feeders or microbivores) should presumably have greater effects on decomposition than herbivores, me...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1002/ecy.2169
更新日期:2018-04-01 00:00:00
abstract::Parasites can alter communities by reducing densities of keystone hosts, but few studies have examined how trait-mediated indirect effects of parasites can alter ecological communities. We test how trematode parasites (Microphallus spp.) that affect invasive crayfish (Orconectes rusticus) behavior alter how crayfish i...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/15-1634.1
更新日期:2016-06-01 00:00:00
abstract::In view of growing interest in understanding how biodiversity affects ecosystem functioning, we investigated effects of riparian plant diversity on litter decomposition in forest streams. Leaf litter from 10 deciduous tree species was collected during natural leaf fall at two locations (Massif Central in France and Ca...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/0012-9658(2007)88[219:dodlmi]2.0.co;2
更新日期:2007-01-01 00:00:00
abstract::Insect mutualisms can have disproportionately large impacts on local arthropod and plant communities and their responses to climatic change. The objective of this study was to determine if the presence of insect mutualisms affects host plant and herbivore responses to warming. Using open-top warming chambers at Harvar...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/13-0760.1
更新日期:2014-01-01 00:00:00
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
更新日期:2018-09-01 00:00:00
abstract::Selection of prey that are small and in poor body condition is a widespread phenomenon in terrestrial predator-prey systems and may benefit prey populations by removing substandard individuals. Similar selection is widely assumed to operate in aquatic systems. Indeed, size-selective predation is a longstanding and cen...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/15-0564.1
更新日期:2016-02-01 00:00:00