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- Author:
- Sahashi, Genki; Morita, Kentaro
- Source:
- Oikos 2018 v.127 no.2 pp. 239-251
- ISSN:
- 0030-1299
- Subject:
- Oncorhynchus masou; Salvelinus malma; artificial selection; hatcheries; males; migratory behavior; migratory species; models; rivers; salmon
- Abstract:
- ... Partial migration, in which a portion of the population migrates while the rest of the population remains as residents, is a common form of migration. Alternative migratory tactics (AMTs) of partial migration are often determined by polygenic threshold traits. However, the ultimate mechanisms that drive inter‐population variations in threshold traits are not well understood. We present a simple sc ...
- DOI:
- 10.1111/oik.03715
-
https://dx.doi.org/10.1111/oik.03715
- Author:
- Hertel, Anne G.; Bischof, Richard; Langval, Ola; Mysterud, Atle; Kindberg, Jonas; Swenson, Jon E.; Zedrosser, Andreas
- Source:
- Oikos 2018 v.127 no.2 pp. 197-207
- ISSN:
- 0030-1299
- Subject:
- Ursus arctos; Vaccinium myrtillus; Vaccinium vitis-idaea; autumn; bilberries; climate; climate change; dormancy; females; flowering; food availability; food shortages; fruiting bodies; herbivores; hibernation; life history; mammals; omnivores; phenology; prognosis; reproductive success; ripening; snow; species recruitment; spring; temperature; time series analysis; yearlings; Sweden
- Abstract:
- ... Obligate herbivores dominate studies of the effects of climate change on mammals, however there is limited empirical evidence for how changes in the abundance or quality of plant food affect mammalian omnivores. Omnivores can exploit a range of different food resources over the course of a year, but they often rely on seasonally restricted highly nutritious fruiting bodies during critical life sta ...
- DOI:
- 10.1111/oik.04515
-
https://dx.doi.org/10.1111/oik.04515
- Author:
- Almeida, Adriana de; Mikich, Sandra Bos
- Source:
- Oikos 2018 v.127 no.2 pp. 184-197
- ISSN:
- 0030-1299
- Subject:
- Neotropics; biodiversity; birds; databases; diet; frugivores; fruits; mammals; seed dispersal; seeds; viability
- Abstract:
- ... Frugivory and seed dispersal are key processes for the maintenance of biodiversity. This is particularly true in the Neotropics, where most plant species depend on animals to disperse their seeds and most birds and mammals include fruits in their diets. We performed a continental‐scale literature review to build a database of interactions between neotropical fruits and fruit‐eating birds and mamma ...
- DOI:
- 10.1111/oik.04774
-
https://dx.doi.org/10.1111/oik.04774
- Author:
- Ulrich, Werner; Banks‐Leite, Cristina; De Coster, Greet; Habel, Jan Christian; Matheve, Hans; Newmark, William D.; Tobias, Joseph A.; Lens, Luc
- Source:
- Oikos 2018 v.127 no.2 pp. 274-284
- ISSN:
- 0030-1299
- Subject:
- environmental factors; environmental impact; habitat fragmentation; interspecific competition; landscapes; neotropical birds; phylogeny; prediction; territoriality; tropical forests
- Abstract:
- ... Two major theories of community assembly – based on the assumption of ‘limiting similarity’ or ‘habitat filtering’, respectively – predict contrasting patterns in the spatial arrangement of functional traits. Previous analyses have made progress in testing these predictions and identifying underlying processes, but have also pointed to theoretical as well as methodological shortcomings. Here we ap ...
- DOI:
- 10.1111/oik.04561
-
https://dx.doi.org/10.1111/oik.04561
- Author:
- Dermond, Philip; Thomas, Stephen M.; Brodersen, Jakob
- Source:
- Oikos 2018 v.127 no.2 pp. 297-305
- ISSN:
- 0030-1299
- Subject:
- Salmo trutta; diet; groundwater; muscle tissues; niches; stable isotopes; stomach; streams; surface water
- Abstract:
- ... The concept of the niche has long been a central pillar in ecological theory, with a traditional focus on quantifying niches at the species or population level. However, the importance of individual‐level niche variation is increasingly being recognised, with a strong focus on individual specialisation. While examples illustrating the contribution of the individual niche to whole population niche ...
- DOI:
- 10.1111/oik.04578
-
https://dx.doi.org/10.1111/oik.04578
- Author:
- Bhaumik, Vaishali; Kunte, Krushnamegh
- Source:
- Oikos 2018 v.127 no.2 pp. 285-296
- ISSN:
- 0030-1299
- Subject:
- aposematic species; behavior change; butterflies; diapause; females; flight; flight muscles; life history; males; migratory behavior; migratory species; mimicry (behavior); phenotype; phenotypic plasticity; reproduction; sexual dimorphism
- Abstract:
- ... Migratory species may display striking phenotypic plasticity during individual lifetimes. This may include differential investment in body parts and functions, differential resource use and allocation, and behavioural changes between migratory and non‐migratory phases. While migration‐related phenotypic changes are well‐reported, their underlying mechanisms are usually poorly understood. Here we c ...
- DOI:
- 10.1111/oik.04593
-
https://dx.doi.org/10.1111/oik.04593
- Author:
- Poisot, Timothée; Stouffer, Daniel B.
- Source:
- Oikos 2018 v.127 no.2 pp. 230-238
- ISSN:
- 0030-1299
- Subject:
- animal ecology; community structure; habitats; phylogeny
- Abstract:
- ... Both species and their interactions are affected by changes that occur at evolutionary time‐scales, and these changes shape both ecological communities and their phylogenetic structure. That said, extant ecological community structure is contingent upon random chance, environmental filters and local effects. It is therefore unclear how much ecological signal local communities should retain. Here w ...
- DOI:
- 10.1111/oik.03788
-
https://dx.doi.org/10.1111/oik.03788
- Author:
- Filazzola, Alessandro; Sotomayor, Diego A.; Lortie, Christopher J.
- Source:
- Oikos 2018 v.127 no.2 pp. 264-273
- ISSN:
- 0030-1299
- Subject:
- annuals; biocenosis; biodiversity; biogeography; climate change; databases; deserts; environmental factors; microclimate; models; shrubs; California; Mojave Desert
- Abstract:
- ... The niche is a necessary consideration when estimating habitable area and geographic range of a species. Modellers often examine the fundamental niche and the environmental requirements for plant species, ignoring interactions among species. In deserts, positive plant interactions are important drivers of biodiversity and structure communities through many mechanistic pathways including modifying ...
- DOI:
- 10.1111/oik.04688
-
https://dx.doi.org/10.1111/oik.04688
- Author:
- Bartomeus, Ignasi; Cariveau, Daniel P.; Harrison, Tina; Winfree, Rachael
- Source:
- Oikos 2018 v.127 no.2 pp. 306-315
- ISSN:
- 0030-1299
- Subject:
- bees; biodiversity; blueberries; body size; cranberries; crops; ecological function; land use change; pollination; pollinators; prediction; watermelons; United States
- Abstract:
- ... The response and effect trait framework, if supported empirically, would provide for powerful and general predictions about how biodiversity loss leads to loss in ecosystem function. This framework proposes that species traits will explain how different species respond to disturbance (i.e. response traits) as well as their contribution to ecosystem function (i.e. effect traits). However, predictiv ...
- DOI:
- 10.1111/oik.04507
-
https://dx.doi.org/10.1111/oik.04507
- Author:
- Jiang, Xingpei; Michalet, Richard; Chen, Shuyan; Zhao, Liang; Wang, Xiangtai; Wang, Chenyue; An, Lizhe; Xiao, Sa
- Source:
- Oikos 2018 v.127 no.2 pp. 252-263
- ISSN:
- 0030-1299
- Subject:
- alpine plants; climate; cold stress; drought; dry environmental conditions; mountains; phenotype; plant communities; plant response; species diversity; temperature; topography; water stress; China
- Abstract:
- ... Contrasting phenotypes of alpine cushion species have been recurrently described in several mountain ranges along small‐scale topography gradients, with tight competitive phenotypes in stressful convex topography and loose facilitative phenotypes in sheltered concave topography. The consistency of phenotypic effects along large‐scale climate stress gradients have been proposed as a test of the lik ...
- DOI:
- 10.1111/oik.04512
-
https://dx.doi.org/10.1111/oik.04512
- Author:
- Ebeling, Anne; Rzanny, Michael; Lange, Markus; Eisenhauer, Nico; Hertzog, Lionel R.; Meyer, Sebastian T.; Weisser, Wolfgang W.
- Source:
- Oikos 2018 v.127 no.2 pp. 208-219
- ISSN:
- 0030-1299
- Subject:
- arthropod communities; body size; carnivores; community structure; ecosystems; functional diversity; herbivores; omnivores; predation; species diversity; trophic levels; vegetation
- Abstract:
- ... Changes to primary producer diversity can cascade up to consumers and affect ecosystem processes. Although the effect of producer diversity on higher trophic groups have been studied, these studies often quantify taxonomy‐based measures of biodiversity, like species richness, which do not necessarily reflect the functioning of these communities. In this study, we assess how plant species richness ...
- DOI:
- 10.1111/oik.04210
-
https://dx.doi.org/10.1111/oik.04210
- Author:
- Reynolds, Laura K.; Chan, Kendra M.; Huynh, Elena; Williams, Susan L.; Stachowicz, John J.
- Source:
- Oikos 2018 v.127 no.2 pp. 327-336
- ISSN:
- 0030-1299
- Subject:
- Amphipoda; Polychaeta; Zostera marina; clones; detritus; ecosystems; food webs; genetic variation; genotype; leaves; macroalgae; macroinvertebrates; meadows; nitrogen; nutritive value; palatability; phenolic compounds; seagrasses; secondary metabolites; secondary productivity; species diversity; texture; California
- Abstract:
- ... Seagrass meadows are among the world's most productive ecosystems, and as in many other systems, genetic diversity is correlated with increased production. However, only a small fraction of seagrass production is directly consumed, and instead much of the secondary production is fueled by the detrital food web. Here, we study the roles of plant genetic diversity and grazer species diversity on det ...
- DOI:
- 10.1111/oik.04471
-
https://dx.doi.org/10.1111/oik.04471
- Author:
- Maris, Virginie; Huneman, Philippe; Coreau, Audrey; Kéfi, Sonia; Pradel, Roger; Devictor, Vincent
- Source:
- Oikos 2018 v.127 no.2 pp. 171-183
- ISSN:
- 0030-1299
- Subject:
- biodiversity; decision making; ecosystems; global change; models; prediction; scientists; socioeconomics
- Abstract:
- ... In the current context of global change and a biodiversity crisis, there are increasing demands for greater predictive power in ecology, in both the scientific literature and at the science–policy interface. The implicit assumption is that this will increase knowledge and, in turn, lead to better decision‐making. However, the justification for this assumption remains uncertain, not least because t ...
- DOI:
- 10.1111/oik.04655
-
https://dx.doi.org/10.1111/oik.04655
- Author:
- Laigle, Idaline; Aubin, Isabelle; Digel, Christoph; Brose, Ulrich; Boulangeat, Isabelle; Gravel, Dominique
- Source:
- Oikos 2018 v.127 no.2 pp. 316-326
- ISSN:
- 0030-1299
- Subject:
- animal characteristics; community structure; data collection; ecosystems; food webs; functional diversity; soil biota; statistical analysis; statistical models; taxonomy; variance
- Abstract:
- ... The use of functional traits to describe community structure is a promising approach to reveal generalities across organisms and ecosystems. Plant ecologists have demonstrated the importance of traits in explaining community structure, competitive interactions as well as ecosystem functioning. The application of trait‐based methods to more complex communities such as food webs is however more chal ...
- DOI:
- 10.1111/oik.04712
-
https://dx.doi.org/10.1111/oik.04712
- Author:
- Wubs, E. R. Jasper; Bezemer, T. Martijn
- Source:
- Oikos 2018 v.127 no.2 pp. 220-229
- ISSN:
- 0030-1299
- Subject:
- Jacobaea vulgaris; biomass; greenhouse experimentation; soil; soil-plant interactions; variance
- Abstract:
- ... Plant–soil feedbacks (PSF) strongly influence plant performance. However, to what extent these PSF effects are persistent in the soil and how they are altered by species that subsequently condition the soil is unclear. Here we test how conspecific and heterospecific soil‐conditioning effects interact across different soil‐conditioning phases. We conducted a fully factorial glasshouse experiment wh ...
- DOI:
- 10.1111/oik.04526
-
https://dx.doi.org/10.1111/oik.04526