A5004357304- Plant and animal studies
- Insect and Arachnid Ecology and Behavior
- Species Distribution and Climate Change
- Chemical Synthesis and Reactions
- Ecology and Vegetation Dynamics Studies
- Electrocatalysts for Energy Conversion
- Electrochemical Analysis and Applications
- Chemical Synthesis and Analysis
- Animal Behavior and Reproduction
- Inorganic and Organometallic Chemistry
- Radical Photochemical Reactions
- Oxidative Organic Chemistry Reactions
- Chemical Reaction Mechanisms
- Synthesis and Catalytic Reactions
- Fluorine in Organic Chemistry
- Synthesis and Biological Evaluation
- Electron Spin Resonance Studies
- Vanadium and Halogenation Chemistry
- Animal Ecology and Behavior Studies
- Quantum chaos and dynamical systems
- Numerical methods for differential equations
- Marine and fisheries research
- Advanced battery technologies research
- Genetic diversity and population structure
- Advanced Synthetic Organic Chemistry
McGill University
2013-2024
Concordia University
2015-2024
University of Tennessee at Knoxville
2007-2020
Ecological Society of America
2018
Université Laval
1969-2017
University of Copenhagen
2013
North Carolina State University
2007
Université de Sherbrooke
1993-2006
Polytechnique Montréal
1991
National Research Council Canada
1970-1972
ABSTRACT Aim This research aims to understand the factors that shape elevational diversity gradients and how those vary with spatial grain. Specifically, we test predictions of species–productivity hypothesis, species–temperature metabolic theory ecology mid‐domain effects null model. We also examine productivity temperature on richness depend Location Deciduous forests along an gradient in Great Smoky Mountains National Park, USA. Methods sampled 22 leaf litter ant assemblages at three...
We present a framework to measure the strength of environmental filtering and disequilibrium species composition local community across time, relative past, current, future climates. demonstrate by measuring impact climate change on New World forests, integrating data for niches more than 14000 species, 471 forest plots, observed most recent glacial-interglacial interval. show that majority communities have compositions are strongly filtered in equilibrium with current random samples from...
Current global challenges call for a rigorously predictive ecology. Our understanding of ecological strategies, imputed through suites measurable functional traits, comes from decades work that largely focussed on plants. However, key question is whether plant strategies resemble those other organisms.Among animals, ants have long been recognised to possess similarities with plants: as (largely) central place foragers. For example, individual ant workers play similar foraging roles leaves...
Summary An ever‐increasing number of studies use tools from community phylogenetics to infer the processes underlying assembly communities. However, very few simultaneously experimental approaches characterize ecological niches species and directly assess importance these structuring processes. In this study, we developed an approach for quantifying four types food resources three habitat templets in temperate forest ant assemblages. We then used null models whether overlapped more or less...
Invasive species are one of the main threats to biodiversity worldwide and processes enabling their establishment persistence remain poorly understood. In generalist consumers, plasticity in diet trophic niche may play a crucial role invasion success. There is growing evidence that invasive ants, particular, occupy lower levels introduced range compared native one, but evidences fragmented. We conducted stable isotope analysis at five locations distributed on two continents infer position...
What forces structure ecological assemblages? A key limitation to general insights about assemblage is the availability of data that are collected at a small spatial grain (local assemblages) and large extent (global coverage). Here, we present published unpublished from 51 ,388 ant abundance occurrence records more than 2,693 species 7,953 morphospecies local assemblages 4,212 locations around world. Ants were selected because they diverse abundant globally, comprise fraction animal biomass...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe structure of amidyl radicals. Evidence for the .pi.-electronic ground state and twist about acyl-nitrogen bond by electron paramagnetic resonance spectroscopyR. Sutcliffe, D. Griller, J. Lessard, K. U. IngoldCite this: Am. Chem. Soc. 1981, 103, 3, 624–628Publication Date (Print):February 1, 1981Publication History Published online1 May 2002Published inissue 1 February 1981https://doi.org/10.1021/ja00393a021RIGHTS & PERMISSIONSArticle...
Abstract Aim Islands have been the test bed of several theories in community ecology, biogeography, and evolutionary biology. Progress within these disciplines has given a more comprehensive mechanistic understanding processes governing variation species richness among islands. However, it remains unclear whether same also explain phylogenetic composition Integrating theory from ecology we infer roles dispersal, selection, stochasticity on insular assemblages archipelagos. We further assess...
Biologists have long been fascinated by the processes that give rise to phenotypic complexity of organisms, yet whether there exist geographical hotspots remains poorly explored. Phenotypic can be readily observed in ant colonies, which are superorganisms with morphologically differentiated queen and worker castes analogous germline soma multicellular organisms. Several species evolved ‘worker polymorphism', where workers a single colony show quantifiable differences size head-to-body...
ABSTRACT In primary lowland rain forest in Brunei Darussalam, we studied arboreal ant communities to evaluate whether densities and spacing of spatially territorial taxa along 2.9 km well‐studied trails are consistent with existence a continuous mosaic dominant ants. A median intercolony distance 24.5 m, about twice or less distances over which colonies most included species regularly ranged, suggested relatively mosaic. Despite relying on nesting sites preformed plant cavities, carpenter...
Abstract Aim Water–energy dynamics are often correlated with geographical patterns of terrestrial plant richness. However, the relative importance water and energy on species richness is still being debated. Some studies suggest a transition in along latitudinal gradient, i.e. that most important factor at low latitudes, whereas leading high latitudes. The generality this yet to be established focus current study. In particular, we examine whether differences evolutionary histories two...
Abstract The study of ecological networks has progressively evolved from a mostly descriptive science to one that attempts elucidate the processes governing emerging structure multitrophic communities. To move forward, we propose conceptual framework using trait‐based inference improve our understanding network assembly and ability predict reassembly amid global change. formalizes view is governed by shaping composition resource consumer communities within trophic levels those dictating...
Abstract Quantifying trait–environment associations can help elucidate the processes underpinning structure of species assemblages. However, most work has focused on trait variation across rather than within species, meaning that operating at intraspecific levels cannot be detected. Incorporating in community‐wide analyses provide valuable insights about role morphological adaptation and plasticity persistence composition ecological communities. Here, we assessed geographical direction (i.e....
Tropical forest canopies house most of the globe's diversity, yet little is known about global patterns and drivers canopy diversity. Here, we present models ant species density, using climate, abundance habitat (i.e. versus litter) as predictors. Ant density positively associated with temperature precipitation, negatively (or non-significantly) two metrics seasonality, precipitation seasonality range. was significantly higher in samples, but this difference disappeared once considered....