Abstract:
:The contribution of interspecific competition to structuring population and community dynamics remains controversial and poorly tested. Interspecific competition has long been thought to influence the structure of migrant-resident bird communities in winter, yet experimental evidence remains elusive. The arrival of billions of songbirds into Neotropical habitats, where they co-exist with residents, provides a unique opportunity to assess interspecific competition and its consequences. Working in 15 ha of Jamaican black mangrove forest, we used removal experiments to test whether dominant resident Yellow Warblers compete interspecifically with subordinate wintering American Redstarts; we also used observational evidence (interspecific territorial overlap) to understand whether this coexistence influences physical condition, spring departure dates or annual return rates. Consistent with interspecific competition, after experimental removal of the resident, yearling male Redstarts (but not females or adult males) immediately moved into vacated Yellow Warbler territories, increasing their overlap with the space by 7.3%. Yearling Redstarts also appeared to adjust their territorial space use by actively avoiding Yellow Warblers; for example, Redstarts departing the wintering grounds as yearlings and returning the following winter shifted such that their territories overlapped 32% less with those of Yellow Warblers. Adult Redstarts showed no such territorial flexibility. Adult male Redstarts also showed evidence supporting the consequences of coexistence: territorial overlap with Yellow Warblers was negatively correlated with body condition and annual return rates. Adult male Redstarts with <25% territorial overlap with Yellow Warblers were more than three times as likely to return between seasons than those with 100% overlap. We propose that the territorial inflexibility of adult male Redstarts produces these consequences, which may be due to their years-long investment in that particular territory. More generally, the temporary nature of migrant-resident interspecific competition is likely what allows coexistence during winter, the most resource-poor time of year. Interspecific competition and the consequences of coexistence are likely age- and sex-specific and the product of intraspecific dominance hierarchy in Redstarts. Our observations suggest that interspecific coexistence has measurable consequences, and our experiments support the long-held, but previously untested belief that resident birds compete interspecifically with wintering migrants.
journal_name
Ecologyjournal_title
Ecologyauthors
Powell LL,Ames EM,Wright JR,Matthiopoulos J,Marra PPdoi
10.1002/ecy.3208subject
Has Abstractpub_date
2020-09-27 00:00:00pages
e03208eissn
0012-9658issn
1939-9170pub_type
杂志文章相关文献
ECOLOGY文献大全abstract::Plants commonly employ indirect resistance to reduce herbivory by provisioning predatory arthropod populations with additional resources. Numerous predatory arthropods consume pollen that is entrapped on dense, wooly trichomes of plants. Over two seasons, we supplemented pollen on the wooly leaves of turkey mullein, C...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1002/ecy.2867
更新日期:2019-11-01 00:00:00
abstract::Heterogeneity is increasingly recognized as a foundational characteristic of ecological systems. Under global change, understanding temporal community heterogeneity is necessary for predicting the stability of ecosystem functions and services. Indeed, spatial heterogeneity is commonly used in alternative stable state ...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1002/ecy.2154
更新日期:2018-04-01 00:00:00
abstract::Polymorphisms play critical roles in allowing organisms to adapt to novel environments while enabling ecological speciation under divergent selection. Ambystoma maculatum, the spotted salamander, exhibits a unique polymorphism in the structure and appearance of its egg masses with two common morphs, white and clear. A...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1002/ecy.1789
更新日期:2017-05-01 00:00:00
abstract::Historically, desert drainages of the American southwest supported productive riverine wetlands (ciénegas). Region-wide erosion of ciénegas during the late 19th and early 20th century dramatically reduced the abundance of these ecosystems, but recent reestablishment of wetlands in Sycamore Creek, Arizona, USA, provide...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/07-0915.1
更新日期:2008-05-01 00:00:00
abstract::The arcsine square root transformation has long been standard procedure when analyzing proportional data in ecology, with applications in data sets containing binomial and non-binomial response variables. Here, we argue that the arcsine transform should not be used in either circumstance. For binomial data, logistic r...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/10-0340.1
更新日期:2011-01-01 00:00:00
abstract::Ecological theory suggests that pathogens are capable of regulating or limiting host population dynamics, and this relationship has been empirically established in several settings. However, although studies of childhood diseases were integral to the development of disease ecology, few studies show population limitati...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1002/ecy.1520
更新日期:2016-10-01 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
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
更新日期:2014-02-01 00:00:00
abstract::Crop rotation schemes are believed to work by preventing specialist soil-borne pests from depressing the future yields of similar crops. In ecology, such negative plant-soil feedbacks may be viewed as a type of Janzen-Connell effect, which promotes species coexistence and diversity by preventing the same species from ...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/07-2056.1
更新日期:2008-09-01 00:00:00
abstract::Competitive interactions among species with similar ecological niches are known to regulate the assembly of biological communities. However, it is not clear whether such forms of competition can predict the collapse of communities and associated shifts in ecosystem function in the face of environmental change. Here, w...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/14-1731.1
更新日期:2015-10-01 00:00:00
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
更新日期:2020-11-01 00:00:00
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
更新日期:2011-06-01 00:00:00
abstract::Population growth and decline are particularly sensitive to changes in three key life-history parameters: annual productivity, juvenile survival, and adult survival. However, for many species these parameters remain unknown. For example, although grassland songbirds are imperiled throughout North America, for this gui...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/07-0900.1
更新日期:2008-07-01 00:00:00
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
更新日期:2015-02-01 00:00:00
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
更新日期:2012-08-01 00:00:00
abstract::Analyzing ecological data often requires modeling the autocorrelation created by spatial and temporal processes. Many seemingly disparate statistical methods used to account for autocorrelation can be expressed as regression models that include basis functions. Basis functions also enable ecologists to modify a wide r...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1002/ecy.1674
更新日期:2017-03-01 00:00:00
abstract::It is commonly assumed that microbial communities are structured by "bottom-up" ecological forces, although few experimental manipulations have rigorously tested the mechanisms by which resources structure soil communities. We investigated how plant substrate availability might structure fungal communities and belowgr...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1002/ecy.2075
更新日期:2018-01-01 00:00:00
abstract::The introduction of chronic, infectious diseases by colonizing populations (invasive or reintroduced) is a serious hazard in conservation biology, threatening the original host and other spillover species. Most research on spatial invasion of diseases has pertained to established host populations, either at steady sta...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/0012-9658(2006)87[1215:damoid]2.0.co;2
更新日期:2006-05-01 00:00:00
abstract::Occurrence patterns of many sessile species in dynamic landscapes are not in equilibrium due to their slow rates of metapopulation colonization and extinction. Colonization-extinction data enable the estimation of colonization rates for such species, but collecting the necessary data may require long waiting times bet...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1002/ecy.2814
更新日期:2019-10-01 00:00:00
abstract::Comparing the structure of presence/absence (i.e., binary) matrices with those of randomized counterparts is a common practice in ecology. However, differences in the randomization procedures (null models) can affect the results of the comparisons, leading matrix structural patterns to appear either "random" or not. S...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1002/ecy.2043
更新日期:2018-01-01 00:00:00
abstract::The structure of Caribbean coral reef communities has been altered by numerous anthropogenic and natural stressors. Demographic studies of key functional groups have furthered efforts to describe and understand these changes. Little is known, however, about the demographics of sponges on coral reefs, despite their abu...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/08-2060.1
更新日期:2010-02-01 00:00:00
abstract::Abiotic soil properties, plant community composition, and herbivory all have been reported as important factors influencing the composition of soil communities. However, most studies thus far have considered these factors in isolation, whereas they strongly interact in the field. Here, we study how grazing by vertebra...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/09-0134.1
更新日期:2010-03-01 00:00:00
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
更新日期:2009-09-01 00:00:00
abstract::In large samples of trees > or = 1 cm dbh (more than 1 million trees and 3000 species), in six lowland tropical forests on three continents, we assigned species with >30 individuals to one of six classes of stature at maturity (SAM). We then compared the proportional representation of understory trees (1-2 cm dbh) amo...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/0012-9658(2006)87[2298:csacot]2.0.co;2
更新日期:2006-09-01 00:00:00
abstract::Statistical thinking in wildlife biology and ecology has been profoundly influenced by the introduction of AIC (Akaike's information criterion) as a tool for model selection and as a basis for model averaging. In this paper, we advocate the Bayesian paradigm as a broader framework for multimodel inference, one in whic...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/0012-9658(2006)87[2626:mwatfo]2.0.co;2
更新日期:2006-10-01 00:00:00
abstract::Latitudinal patterns of nonnative species richness suggest fewer successful invasions in the tropics, relative to temperate regions. One main hypothesis for this pattern is that biotic resistance to invasion is stronger in the tropics than at higher latitudes. Biotic resistance can limit the distribution and abundance...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/12-1382.1
更新日期:2013-06-01 00:00:00
abstract::Introduced parasites threaten native host species that lack effective defenses. Such parasites increase the risk of extinction, particularly in small host populations like those on islands. If some host species are tolerant to introduced parasites, this could amplify the risk of the parasite to vulnerable host species...
journal_title:Ecology
pub_type: 杂志文章
doi:
更新日期:2016-04-01 00:00:00
abstract::Temporal fluctuations in plant species coexistence are key to understanding ecosystem state transitions and long-term maintenance of species diversity. Although plant microbiomes can alter plant competition in short-term experiments, their relevance to natural temporal patterns in plant communities is unresolved. In a...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1002/ecy.2756
更新日期:2019-08-01 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::In detritus-based ecosystems, autochthonous primary production contributes very little to the detritus pool. Yet primary producers may still influence the functioning of these ecosystems through complex interactions with decomposers and detritivores. Recent studies have suggested that, in aquatic systems, small amount...
journal_title:Ecology
pub_type: 杂志文章
doi:10.1890/12-0606.1
更新日期:2013-07-01 00:00:00