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interspecificcompetition, etc ; models; species richness; Show all 3 Subjects
Abstract:
... The dynamics of trait-based metacommunities have attracted much attention, but not much is known about how dispersal and spatial environmental variability mutually interact with each other to drive coexistence patterns and diversity. Here, we present a spatially explicit model of competition for two essential resources in a metacommunity on a one-dimensional environmental gradient. We find that bo ...
interspecificcompetition, etc ; microbial communities; nestedness; nutrition; soil; Show all 5 Subjects
Abstract:
... PURPOSE: Given the vast microorganisms and infertile resources in the soil, nutritional resources would be a focal point of bacterial competition. Microbes could quickly capture the nutrition to outcompete their competitors or efficiently cross-feed to cooperate with other bacterial species. However, how interspecies trophic patterns shape the bacterial interactions in the co-occurrence network re ...
interspecificcompetition, etc ; forests; nectar feeding; occupations; Fiji; Show all 5 Subjects
Abstract:
... Charles Darwin proposed his ‘principle of divergence’ to account for changes in traits that could promote speciation and coexistence of diverse forms through occupation of different niches to reduce interspecific competition. We explore interspecific foraging behaviour overlap in Fiji’s forest birds, and address two main questions: (1) Is there vertical stratification of foraging behavior? and (2) ...
interspecificcompetition, etc ; Carnivora; Didelphimorphia; anthropogenic activities; carnivores; humans; Show all 6 Subjects
Abstract:
... Interspecific competition is an important evolutionary force, influencing interactions between species and shaping the composition of biological communities. In mammalian carnivores, to reduce the risks of negative encounters between competitors, species can employ a strategy of temporal partitioning, adapting activity patterns to limit synchronous activity. This strategy of non‐human competitor a ...
interspecificcompetition, etc ; Dytiscidae; Japan; indigenous species; population growth; Show all 5 Subjects
Abstract:
... The poleward range expansion of species native to lower latitudes brings them into competition with closely related species with overlapping habitat niches that are native to higher latitudes. If species of southern origin dominate in such interspecific competitions, this may cause a decline in closely related native species. Since 2010, there has been an increase in the distribution and rediscove ...
interspecificcompetition, etc ; Setophaga ruticilla; diet; food availability; observational studies; Show all 5 Subjects
Abstract:
... Although both interspecific competition and coexistence mechanisms are central to ecological and evolutionary theory, past empirical studies have generally focused on simple (two‐species) communities over short time periods. Experimental tests of these species interactions are challenging in complex study systems. Moreover, several studies of ‘imperfect generalists’, consistent with Liem's Paradox ...
interspecificcompetition, etc ; Ammopiptanthus mongolicus; conservation areas; desertification; forestry; research; China; Show all 7 Subjects
Abstract:
... Grazing significantly affects the distribution, growth, and productivity of shrubs. In this study, we evaluated the effects of grazing disturbance on the spatial distribution patterns and interspecific relationships of two desert shrubs, Ammopiptanthus mongolicus and Sarcozygium xanthoxylon. Three types of grazing conditions were considered, including enclosed area (EA), seasonal rotational grazin ...
interspecificcompetition, etc ; Panorpidae; adults; deforestation; insects; niche conservatism; species richness; temperature; China; Show all 9 Subjects
Abstract:
... Scorpionflies (Mecoptera, Panorpidae) as a relict group of holometabolous insects normally inhabit dense vegetations of mountain regions in the northern hemisphere. They are vulnerable to temperature changes and deforestation and thus play a significant role in insect conservation as ecological indicators. However, their elevational distribution and seasonal emergence patterns remain largely unkno ...
interspecificcompetition, etc ; acoustics; birds; life history; sexual selection; temperate zones; Cameroon; France; Show all 8 Subjects
Abstract:
... Oceanic islands share distinctive characteristics thought to underlie a set of parallel evolutionary trends across islands and taxonomic groups – including life‐history traits, morphology and visual signals. To which extent acoustic signals also change in parallel on islands is less clear. Some important processes associated with insularity, such as founder effects and reduced sexual selection, co ...
interspecificcompetition, etc ; Plethodontidae; Salamandra salamandra; forests; salamanders and newts; stomach; sympatry; Italy; Show all 8 Subjects
Abstract:
... The trophic niche of a species is one of the fundamental traits of species biology. The ideal trophic niche of a species is realized in the absence of interspecific competition, targeting the most profitable and easy-to-handle food resources. However, when a competitor is present, species adopt different strategies to reduce competition and promote coexistence. In this study, we assessed the poten ...
interspecificcompetition, etc ; Allocasuarina; Calyptorhynchus; chicks; food availability; habitats; landscapes; nesting sites; nests; Show all 9 Subjects
Abstract:
... Nestboxes have been deployed for parrots and cockatoos (Psittaciformes) worldwide, but there is limited evidence of their efficacy for these species. We examined the use of nestboxes by endangered South Australian Glossy Black Cockatoos Calyptorhynchus lathami halmaturinus, a habitat specialist that feeds almost solely on the seeds of Drooping Sheoak Allocasuarina verticillata trees, and investiga ...
interspecificcompetition, etc ; birds; body weight; data analysis; diet; group size; regression analysis; Brazil; Show all 8 Subjects
Abstract:
... Many animal species participate in interspecific groups which can provide benefits such as better detection of predator presence, but may also lead to costs such as interspecific competition. In interspecific groups, species with particular functional traits should be aggregated in a way that maximizes the benefits and minimizes the costs of these interactions. Further, the balance between costs a ...
interspecificcompetition, etc ; biodiversity; dominant species; forests; life history; population structure; topography; trees; China; Show all 9 Subjects
Abstract:
... The spatial distribution pattern and population structure of trees are shaped by multiple processes, such as species characteristics, environmental factors, and intraspecific and interspecific interactions. Studying the spatial distribution patterns of species, species associations, and their relationships with environmental factors is conducive to uncovering the mechanisms of biodiversity mainten ...
interspecificcompetition, etc ; Caryocar; Cephalotes; Coleoptera; Cossidae; ant nests; bioassays; cerrado; ecosystems; frass; reproduction; Show all 11 Subjects
Abstract:
... Facilitation is an ecological interaction in which the presence of one species (e.g., ecosystem engineers) alters the environment in a way that enhances growth, survival or reproduction of a neighboring species. Wood-boring insects are considered facilitators for cavities-nesting ants, which experience intense intra and interspecific competition for these sites. But how do ants find these cavities ...
interspecificcompetition, etc ; Martes americana; body size; climate; diet; mammals; phylogeny; snow; snowpack; North America; Show all 10 Subjects
Abstract:
... Competition is a major determinant of where species occur and how species interact. Among carnivorans, interspecific competition is particularly apparent, as many of these species have evolved to be efficient killers. Theoretically, phylogenetically related carnivorans that occupy seasonal habitats, share common resources, and differ in body size by a factor of 2.5–10× should exhibit the most inte ...
interspecificcompetition, etc ; canopy; chlorophyll; health status; photosynthesis; unmanned aerial vehicles; vegetation; vegetation index; wetlands; Show all 9 Subjects
Abstract:
... The chlorophyll content of leaves is an important indicator of plant environmental stress, photosynthetic capacity, and is widely used to diagnose the growth and health status of vegetation. Traditional chlorophyll content inversion is based on the vegetation index under pure species, which rarely considers the impact of interspecific competition and species mixture on the inversion accuracy. To s ...
interspecificcompetition, etc ; Gastropoda; aquatic plants; biodiversity; extinction; freshwater; freshwater molluscs; temporal variation; Caribbean; Guadeloupe; Show all 10 Subjects
Abstract:
... Metacommunity structure reflects the interplay of various processes, including niche filtering, extinction/colonization and interspecific interactions. Spatial patterns of species distributions are often analyzed to infer these processes. However, such inferences rely on often unrealistic equilibrium assumptions, and remain ambiguous, as different processes can produce similar patterns. Temporal d ...
interspecificcompetition, etc ; Engraulis japonicus; Sardinops; Scomber japonicus; community structure; population density; population dynamics; predation; sardines; Show all 9 Subjects
Abstract:
... Many small pelagic fishes obligately form schools; some of these schools reach remarkable sizes. Although the school is a fundamental and important ecological unit and is the site of biological interactions such as competition and predation, information on schooling processes in the field remains scarce. Here, we examined the quantitative relationships between population density and school size, t ...
interspecificcompetition, etc ; Sympetrum; cannibalism; climate change; entomology; indigenous species; life history; mortality; ontogeny; predation; temperature; Show all 11 Subjects
Abstract:
... Studies on interaction between species are needed to observe and predict the effects of climate change on species distributions. Here we studied intra‐ and interspecific competition and behaviour in larvae of a native and a northward expanding dragonfly species, Sympetrum vulgatum and Sympetrum fonscolombii, respectively. We estimated growth, mortality, and behaviour (prey capture success, activit ...
interspecificcompetition, etc ; Busseola fusca; Chilo partellus; Sesamia calamistis; Spodoptera frugiperda; boring insects; corn; diet; larvae; Show all 9 Subjects
Abstract:
... In insect communities, the outcome of intra- and inter-specific competitions for food utilisation depend primarily upon density and duration even inter-specific competitions can occur when they are not sharing the same feeding niche such as between foliar feeders and stemborers. Experimental manipulations of larval densities and the durations of common diet feeding of fall armyworm (FAW), S. frugi ...