Abstract:
:Floodplains are among the world's most threatened ecosystems due to the pervasiveness of dams, levee systems, and other modifications to rivers. Few unaltered floodplains remain where we may examine their dynamics over decadal time scales. Our study provides a detailed examination of landscape change over a 60-year period (1945-2004) on the Nyack floodplain of the Middle Fork of the Flathead River, a free-flowing, gravel-bed river in northwest Montana, USA. We used historical aerial photographs and airborne and satellite imagery to delineate habitats (i.e., mature forest, regenerative forest, water, cobble) within the floodplain. We related changes in the distribution and size of these habitats to hydrologic disturbance and regional climate. Results show a relationship between changes in floodplain habitats and annual flood magnitude, as well as between hydrology and the cooling and warming phases of the Pacific Decadal Oscillation (PDO). Large magnitude floods and greater frequency of moderate floods were associated with the cooling phases of the PDO, resulting in a floodplain environment dominated by extensive restructuring and regeneration of floodplain habitats. Conversely, warming phases of the PDO corresponded with decreases in magnitude, duration, and frequency of critical flows, creating a floodplain environment dominated by late successional vegetation and low levels of physical restructuring. Over the 60-year time series, habitat change was widespread throughout the floodplain, though the relative abundances of the habitats did not change greatly. We conclude that the long- and short-term interactions of climate, floods, and plant succession produce a shifting habitat mosaic that is a fundamental attribute of natural floodplain ecosystems.
journal_name
Ecologyjournal_title
Ecologyauthors
Whited DC,Lorang MS,Harner MJ,Hauer FR,Kimball JS,Stanford JAdoi
10.1890/05-1149subject
Has Abstractpub_date
2007-04-01 00:00:00pages
940-53issue
4eissn
0012-9658issn
1939-9170journal_volume
88pub_type
杂志文章相关文献
ECOLOGY文献大全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
更新日期:2011-02-01 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::While it is well established that climate change affects species distributions and abundances, the impacts of climate change on species interactions has not been extensively studied. This is particularly important for specialists whose interactions are tightly linked, such as between the monarch butterfly (Danaus plex...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1002/ecy.2198
更新日期:2018-05-01 00:00:00
abstract::Lianas (woody vines) are an important and dynamic component of many forests throughout the world, and increases in CO2, mean winter temperature, and forest fragmentation may promote their growth and proliferation in temperate forests. In this study, we used a 45-year data set to test the hypothesis that lianas have in...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/0012-9658(2006)87[2973:tdolat]2.0.co;2
更新日期:2006-12-01 00:00:00
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 experim...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1002/ecy.1530
更新日期:2016-11-01 00:00:00
abstract::Using long-term data on two kangaroo rats in the Chihuahuan Desert of North America, we fitted logistic models including the exogenous effects of seasonal rainfall patterns. Our aim was to test the effects of intraspecific interactions and seasonal rainfall in explaining and predicting the numerical fluctuations of th...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/07-1246.1
更新日期:2008-09-01 00:00:00
abstract::Soil nutrients influence the distribution of tree species in lowland tropical forests, but their effect on productivity, especially at local scales, remains unclear. We used tree census, canopy occupancy, and soil data from the Barro Colorado Island (BCI; Panama) 50-ha forest dynamics plot to investigate the influence...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1002/ecy.2532
更新日期:2018-12-01 00:00:00
abstract::Climate variability, which is expected to increase in the future, can promote coexistence through a mechanism called the storage effect. Currently, we have little understanding of how the importance of the storage effect varies among ecosystems. We tested for the three conditions of the storage effect in a sagebrush s...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/08-2241.1
更新日期:2009-12-01 00:00:00
abstract::Alternative successional trajectories (AST) may result in multiple climax states within an ecosystem when disturbances affect colonization history. In the boreal forest, ungulates have been proposed to drive AST because, under herbivore pressure, preferred species may go extinct and apparent competition may benefit br...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/12-2015.1
更新日期:2013-12-01 00:00:00
abstract::Monitoring to detect population declines is widespread, but also costly. There is, consequently, a need to optimize monitoring to maximize cost-effectiveness. Here we develop a quantitative decision analysis framework for how to optimally allocate resources for monitoring among species. By keeping the framework simple...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/14-1511.1
更新日期:2015-11-01 00:00:00
abstract::The most abundant elements contained in stem flow from American beech (Fagus grandifolia), red oak (Quercus rubra), and sugar maple (Acer saccharum) were C > K = Ca > Na = Mg = P. Variations in leaching potential and in concentration of chemical constituents around the base of beech trees, due to non-uniform stem flow...
journal_title:Ecology
pub_type: 杂志文章
doi:10.2307/1934160
更新日期:1971-07-01 00:00:00
abstract::There is now ample evidence that biodiversity stabilizes aggregated ecosystem functions, such as primary production, in changing environments. In primary producer systems, this stabilizing effect is found to be driven by higher functional resistance (i.e., reduced changes in functions by environmental changes) rather ...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1002/ecy.1601
更新日期:2016-12-01 00:00:00
abstract::Savannas are characterized by a competitive tension between grasses and trees, and theoretical models illustrate how this competitive tension is influenced by resource availability, competition for these resources, and disturbances. How this universe of theoretical possibilities translates into the real world is, howe...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/08-1368.1
更新日期:2010-06-01 00:00:00
abstract::In conservation and evolutionary ecology, quantifying and accounting for individual heterogeneity in vital rates of open populations is of particular interest. Individual random effects have been used in capture-recapture models, adopting a Bayesian framework with Markov chain Monte Carlo (MCMC) to carry out estimatio...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/09-1903.1
更新日期:2010-04-01 00:00:00
abstract::Body size and temperature are fundamental drivers of ecological processes because they determine metabolic rates at the individual level. Whether these drivers act independently on individual-level metabolic rates remains uncertain. Most studies of intraspecific scaling of unitary organisms must rely on preexisting di...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1002/ecy.1624
更新日期:2017-01-01 00:00:00
abstract::Dreissenid mussels, including the zebra (Dreissena polymorpha) and quagga (Dreissena rostiformus bugensis) mussel, are invasive species known for their capacity to act as ecosystem engineers. They have caused significant changes in the many freshwater systems they have invaded by increasing water clarity, reducing pri...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1002/ecy.1836
更新日期:2017-06-01 00:00:00
abstract::Abiotic constraints and biotic interactions act simultaneously to shape communities. However, these community assembly mechanisms are often studied independently, which can limit understanding of how they interact to affect species dynamics and distributions. We develop a hierarchical Bayesian neighborhood modeling ap...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1002/ecy.2441
更新日期:2018-10-01 00:00:00
abstract::Plants interact with numerous enemies and mutualists simultaneously and sequentially. Such multispecies interactions can give rise to trait-mediated indirect effects that are likely to be common in nature but which are also inherently difficult to predict. Understanding multispecies interactions is also important in t...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/09-0855.1
更新日期:2010-08-01 00:00:00
abstract::Heterogeneity in site quality can play an important role in patterns of abundance and population dynamics. Yet, estimating site quality in natural systems can be problematic because site quality can (1) vary through ontogeny for a focal organism, leading to shifts in site quality with age, (2) be confounded with (or m...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/07-0021.1
更新日期:2008-01-01 00:00:00
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
更新日期:2006-11-01 00:00:00
abstract::Community ecology has long focused on energy and nutrients as currencies of species interactions. Evidence from physiological ecology and recent studies suggest that in terrestrial systems, water may influence animal behavior and global patterns of species richness. Despite these observations, water has received littl...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/08-1626.1
更新日期:2009-06-01 00:00:00
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. ...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/07-1153.1
更新日期:2009-04-01 00:00:00
abstract::Animal habitat selection is a process that functions at multiple, hierarchically. structured spatial scales. Thus multi-scale analyses should be the basis for inferences about factors driving the habitat selection process. Vertebrate herbivores forage selectively on the basis of phytochemistry, but few studies have in...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/12-1313.1
更新日期:2013-02-01 00:00:00
abstract::Variation in habitat quality and quantity drive selection on dispersal traits in heterogeneous environments, but the extent to which environmental conditions predict geographic variation in dispersal is rarely evaluated. We assessed dispersal trait variation across the range of Cakile edentula var. lacustris, an annua...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1002/ecy.2402
更新日期:2018-08-01 00:00:00
abstract::The evolutionary pressures that drive long larval planktonic durations in some coastal marine organisms, while allowing direct development in others, have been vigorously debated. We introduce into the argument the asymmetric dispersal of larvae by coastal currents and find that the strength of the currents helps dete...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/13-0970.1
更新日期:2014-04-01 00:00:00
abstract::An under-examined component of global change is the alteration of disturbance regimes due to warming climates, continued species invasions, and accelerated land-use change. These drivers of global change are themselves novel ecosystem disturbances that may interact with historically occurring disturbances in complex w...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/13-0915.1
更新日期:2013-10-01 00:00:00
abstract::Predators can increase the biomass of their prey, particularly when prey life stages differ in competitive ability and predation is stage specific. Akin to predators, parasites influence host population sizes and engage in stage-structured interactions, yet whether parasites can increase host population biomass remain...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1002/ecy.3000
更新日期:2020-04-01 00:00:00
abstract::Joint species distribution modeling has enabled researchers to move from species-level to community-level analyses, leading to statistically more efficient and ecologically more informative use of data. Here, we propose joint species movement modeling (JSMM) as an analogous approach that enables inferring both species...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1002/ecy.2622
更新日期:2019-04-01 00:00:00
abstract::Despite the recent advances in seed science research, information on seed dormancy and germination traits is still missing for many lineages of the seed plants. We translated and digitized a huge data set on seed dormancy and germination from the Reference Book On Dormant Seed Germination by M. Nikolaeva, M. Razumova,...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1002/ecy.3049
更新日期:2020-07-01 00:00:00
abstract::Measures of body condition, immune function, and hematological health are widely used in ecological studies of vertebrate populations, predicated on the assumption that these traits are linked to fitness. However, compelling evidence that these traits actually predict long-term survival and reproductive success among ...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/14-0418.1
更新日期:2014-11-01 00:00:00