94 Works

Data from: Neutral and selective processes shape MHC gene diversity and expression in stocked brook charr populations (Salvelinus fontinalis)

Fabien C. Lamaze, Scott A. Pavey, Eric Normandeau, Gabriel Roy, Dany Garant & Louis Bernatchez
The capacity of an individual to battle infection is an important fitness determinant in wild vertebrate populations. The major histocompatibility complex (MHC) genes are crucial for a host’s adaptive immune system to detect pathogens. However, anthropogenic activities may disrupt natural cycles of co-evolution between hosts and pathogens. In this study we investigated the dynamic sequence and expression variation of host parasite interactions in brook charr (Salvelinus fontinalis) in a context of past human disturbance via...

Data from: Comparing measures of breeding inequality and opportunity for selection with sexual selection on a quantitative character in bighorn rams

Alexandre M. Martin, Marco Festa-Bianchet, David W. Coltman & Fanie Pelletier
The reliability and consistency of the many measures proposed to quantify sexual selection have been questioned for decades. Realized selection on quantitative characters measured by the selection differential i was approximated by metrics based on variance in breeding success, using either the opportunity for sexual selection Is or indices of inequality. There is no consensus about which metric best approximates realized selection on sexual characters. Recently, the opportunity for selection on character mean OSM was...

Data from: Anthropogenic and natural drivers of gene flow in a temperate wild fruit tree: a basis for conservation and breeding programs in apples

Amandine Cornille, Alice Feurtey, Uriel Gélin, Jeanne Ropars, Kristine Misvanderbrugge, Pierre Gladieux & Tatiana Giraud
Gene flow is an essential component of population adaptation and species evolution. Understanding of the natural and anthropogenic factors affecting gene flow is also critical for the development of appropriate management, breeding and conservation programs. Here, we explored the natural and anthropogenic factors impacting crop-to-wild and within wild gene flow in apples in Europe using an unprecedented dense sampling of 1,889 wild apple (Malus sylvestris) from European forests and 339 apple cultivars (Malus domestica). We...

Data from: Intense selective hunting leads to artificial evolution in horn size

Gabriel Pigeon, Marco Festa-Bianchet, David W. Coltman & Fanie Pelletier
The potential for selective harvests to induce rapid evolutionary change is an important question for conservation and evolutionary biology, with numerous biological, social and economic implications. We analyze 39 years of phenotypic data on horn size in bighorn sheep (Ovis canadensis) subject to intense trophy hunting for 23 years, after which harvests nearly ceased. Our analyses revealed a significant decline in genetic value for horn length of rams, consistent with an evolutionary response to artificial...

Data from: Paternal reproductive success drives sex allocation in a wild mammal

Mathieu Douhard, Marco Festa-Bianchet, Dave W. Coltman, Fanie Pelletier & David W. Coltman
Parents should bias sex allocation toward offspring of the sex most likely to provide higher fitness returns. Trivers and Willard proposed that for polygynous mammals, females should adjust sex-ratio at conception or bias allocation of resources toward the most profitable sex, according to their own body condition. However, the possibility that mammalian fathers may influence sex allocation has seldom been considered. Here, we show that the probability of having a son increased from 0.31 to...

Data from: Long-term fitness consequences of early environment in a long-lived ungulate

Gabriel Pigeon, Marco Festa-Bianchet & Fanie Pelletier
Cohort effects can be a major source of heterogeneity and play an important role in population dynamics. Silver-spoon effects, when environmental quality at birth improves future performance regardless of the adult environment, can induce strong lagged responses on population growth. Alternatively, the external predictive adaptive response (PAR) hypothesis predicts that organisms will adjust their developmental trajectory and physiology during early life in anticipation of expected adult conditions but has rarely been assessed in wild species....

Data from: Habitat filtering determines the functional niche occupancy of plant communities worldwide

Yuanzhi Li, Bill Shipley, Jodi N. Price, Vinícius De L. Dantas, Riin Tamme, Mark Westoby, Andrew Siefert, Brandon S. Schamp, Marko J. Spasojevic, Vincent Jung, Daniel C. Laughlin, Sarah J. Richardson, Yoann Le Bagousse-Pinguet, Christian Schöb, Antonio Gazol, Honor C. Prentice, Nicolas Gross, Jacob Overton, Marcus V. Cianciaruso, Frédérique Louault, Chiho Kamiyama, Tohru Nakashizuka, Kouki Hikosaka, Takehiro Sasaki, Masatoshi Katabuchi … & Marco A. Batalha
How the patterns of niche occupancy vary from species-poor to species-rich communities is a fundamental question in ecology that has a central bearing on the processes that drive patterns of biodiversity. As species richness increases, habitat filtering should constrain the expansion of total niche volume, while limiting similarity should restrict the degree of niche overlap between species. Here, by explicitly incorporating intraspecific trait variability, we investigate the relationship between functional niche occupancy and species richness...

Data from: Species richness change across spatial scales

Jonathan M. Chase, Brian J. McGill, Patrick L. Thompson, Laura H. Antão, Amanda E. Bates, Shane A. Blowes, Maria Dornelas, Andrew Gonzalez, Anne E. Magurran, Sarah R. Supp, Marten Winter, Anne D. Bjorkmann, Helge Bruelheide, Jarrett E.K. Byrnes, Juliano Sarmento Cabral, Robin Ehali, Catalina Gomez, Hector M. Guzman, Forest Isbell, Isla H. Myers-Smith, Holly P. Jones, Jessica Hines, Mark Vellend, Conor Waldock & Mary O'Connor
Humans have elevated global extinction rates and thus lowered global-scale species richness. However, there is no a priori reason to expect that losses of global species richness should always, or even often, trickle down to losses of species richness at regional and local scales, even though this relationship is often assumed. Here, we show that scale can modulate our estimates of species richness change through time in the face of anthropogenic pressures, but not in...

Data from: Herbivory and pollen limitation at the upper elevational range limit of two forest understory plants of eastern North America

Sébastien Rivest & Mark Vellend
Studies of species’ range limits focus most often on abiotic factors, although the strength of biotic interactions might also vary along environmental gradients and have strong demographic effects. For example, pollinator abundance might decrease at range limits due to harsh environmental conditions, and reduced plant density can reduce attractiveness to pollinators and increase or decrease herbivory. We tested for variation in the strength of pollen limitation and herbivory by ungulates along a gradient leading to...

Data from: Environmental and evolutionary effects on horn growth of male bighorn sheep

Mathieu Douhard, Gabriel Pigeon, Marco Festa-Bianchet, Dave W. Coltmann, Simon Guillemette, Fanie Pelletier & David W. Coltman
The development of male secondary sexual characters such as antlers or horns has substantial biological and socio-economic importance because in many species these traits affect male fitness positively through sexual selection and negatively through trophy hunting. Both environmental conditions and selective hunting can affect horn growth but their relative importance remains unexplored. We first examined how a large-scale climate index, the Pacific Decadal Oscillation (PDO), local weather and population density influenced both absolute and relative...

Data from: Hunting promotes sexual conflict in brown bears

Jacinthe Gosselin, Martin Leclerc, Andreas Zedrosser, Sam M. J. G. Steyaert, Jon E. Swenson & Fanie Pelletier
The removal of individuals through hunting can destabilize social structure, potentially affecting population dynamics. Although previous studies have shown that hunting can indirectly reduce juvenile survival through increased sexually selected infanticide (SSI), very little is known about the spatiotemporal effects of male hunting on juvenile survival. Using detailed individual monitoring of a hunted population of brown bears (Ursus arctos) in Sweden (1991–2011), we assessed the spatiotemporal effect of male removal on cub survival. We modelled...

Data from: Demographic drivers of age-dependent sexual selection

Alexandre M. Martin, Marco Festa-Bianchet, David W. Coltman & Fanie Pelletier
Sexual selection has a critical role in evolution, and it is fundamental to identify what ecological factors drive its variation. Disentangling the ecological correlates of sexual selection over the long term, however, is challenging and has rarely been done in nature. We sought to assess how demographic changes influenced the intensity, direction and form of sexual selection and whether selective pressures varied with age. We tested whether breeder sex ratio, number of competitors and age...

Data from: Non-climatic constraints on upper elevational plant range expansion under climate change

Carissa D. Brown & Mark Vellend
We are limited in our ability to predict climate-change-induced range shifts by our inadequate understanding of how non-climatic factors contribute to determining range limits along putatively climatic gradients. Here, we present a unique combination of observations and experiments demonstrating that seed predation and soil properties strongly limit regeneration beyond the upper elevational range limit of sugar maple, a tree species of major economic importance. Most strikingly, regeneration beyond the range limit occurred almost exclusively when...

Data from: Data management, archiving and sharing for biologists and the role of research institutions in the technology-oriented age

Sebastien Renaut, Amber E. Budden, Dominique Gravel, Timothée Poisot & Pedro Peres-Neto
Data are one of the primary outputs of science. Although certain sub-disciplines of biology have pioneered efforts to ensure their long-term preservation and facilitate collaborations, data continue to disappear, owing mostly to technological, regulatory and ideological hurdles. In this review, we describe the important steps towards proper data management and archiving, and provide a critical discussion on the importance of long term data conservation. We then illustrate the rise in data archiving through the Joint...

Data from: Trophy hunting mediates sex-specific associations between early-life environmental conditions and adult mortality in bighorn sheep

Mathieu Douhard, Marco Festa-Bianchet, Julie Landes & Fanie Pelletier
1. Environmental conditions during early development, from conception to sexual maturity, can have lasting consequences on fitness components. Although adult lifespan often accounts for much of the variation in fitness in long-lived animals, we know little about how early environment affects adult lifespan in the wild, and even less about whether these effects differ between the sexes. 2. Using data collected over 45 years from wild bighorn sheep (Ovis canadensis), we investigated the effects of...

Data from: Causes and short-term consequences of variation in milk composition in wild sheep

Limoilou-Amelie Renaud, F. Guillaume Blanchet, Alan A. Cohen & Fanie Pelletier
1.Ecologists seek to understand the fitness consequences of variation in physiological markers, under the hypothesis that physiological state is linked to variability in individual condition and life history. 2.Thus, ecologists are often interested in estimating correlations between entire suites of correlated traits, or biomarkers, but sample size limitations often do not allow us to do this properly when large numbers of traits or biomarkers are considered. 3.Latent variables are a powerful tool to overcome this...

Data from: Exploration profiles drive activity patterns and temporal niche specialization in a wild rodent

Elouana Gharnit, Patrick Bergeron, Dany Garant & Denis Réale
Individual niche specialization can have important consequences for competition, fitness, and ultimately population dynamics and ecological speciation. The temporal window and the level of daily activity are niche components that may vary with sex, breeding season, food supply, population density, and predator’s circadian rhythm. More recently, ecologists emphasized that traits such as dispersal and space use could depend on personality differences. Boldness and exploration have been shown to correlate with variation in foraging patterns, habitat...

WHO Global Response to COVID‐19: Communicating Risk / Risky Communication, Rapid Results Report Phase 1: December 31, 2019 to January 31, 2020

Gabriel Blouin-Genest, Nathalie Burlone, Eric Champagne, Mélissa Généreux, Natalia Torres Orozco & Anna Bojic

Data from: Changes in horn size of Stone's sheep over four decades correlate with trophy hunting pressure

Mathieu Douhard, Marco Festa-Bianchet, Fanie Pelletier, Jean-Michel Gaillard & Christophe Bonenfant
Selective harvest may lead to rapid evolutionary change. For large herbivores, trophy hunting removes males with large horns. That artificial selection, operating in opposition to sexual selection, can lead to undesirable consequences for management and conservation. There have been no comparisons of long-term changes in trophy size under contrasting harvest pressures. We analyzed horn measurements of Stone's rams (Ovis dalli stonei) harvested over 37 years in two large regions of British Columbia, Canada, with marked...

Data from: Resampling method for applying density-dependent habitat selection theory to wildlife surveys

Olivia Tardy, Ariane Massé, Fanie Pelletier & Daniel Fortin
Isodar theory can be used to evaluate fitness consequences of density-dependent habitat selection by animals. A typical habitat isodar is a regression curve plotting competitor densities in two adjacent habitats when individual fitness is equal. Despite the increasing use of habitat isodars, their application remains largely limited to areas composed of pairs of adjacent habitats that are defined a priori. We developed a resampling method that uses data from wildlife surveys to build isodars in...

Data from: Adoption in eastern grey kangaroos: a consequence of misdirected care?

Wendy J. King, David M. Forsyth, Graeme Coulson & Marco Festa-Bianchet
Adoption is rare in animals and is usually attributed to kin selection. In a 6-year study of eastern grey kangaroos (Macropus giganteus), 11 of 326 juveniles were adopted. We detected eight adoptions by observing behavioural associations and nursing between marked mothers and young and three more by analysing the relatedness of mothers and young using microsatellite DNA. Four adoptions involved reciprocal switches and three were by mothers whose own pouch young were known to subsequently...

Data from: Seeing is believing? comparing plant-herbivore networks constructed by field co-occurrence and DNA barcoding methods for gaining insights into network structures

Chunchao Zhu, Dominique Gravel & Fangliang He
Plant-herbivore interaction networks provide information about community organization. Two methods are currently used to document pairwise interactions among plants and insect herbivores. One is the traditional method that collects plant-herbivore interaction data by field observation of insect occurrence on host plants. The other is the increasing application of newly developed molecular techniques based on DNA barcodes to the analysis of gut contents. The second method is more appealing because it documents realized interactions. To construct...

Data from: Genetic structure and rabies spread potential in raccoons: the role of landscape barriers and sex-biased dispersal

Héloïse Côté, Dany Garant, Karine Robert, Julien Mainguy & Fanie Pelletier
Identifying natural barriers to movements of hosts associated with infectious diseases is essential for developing effective control strategies. Raccoon rabies variant (RRV) is a zoonosis of concern for humans because its main vector, the raccoon (Procyon lotor), is found near residential areas. In Québec, Canada, all cases of RRV found in raccoons since 2006 were detected on the eastern side of the Richelieu River, suggesting that this river acts as a barrier to gene flow...

Data from: Spatial autocorrelation in fitness affects the estimation of natural selection in the wild

Pascal Marrot, Dany Garant & Anne Charmantier
1. Natural selection is typically estimated in the wild using Lande and Arnold's multiple regression approach. Despite its utility for evolutionary ecologists, this method is subject to the classical assumptions of multiple regressions, which could result in potential analytical problems. In particular, spatial autocorrelation in fitness violates the assumption of residuals independence. Although widespread in the wild, the consequences of this effect have yet to be investigated in the context of Lande and Arnold's regression...

Data from: Severe recent decrease of adult body mass in a declining insectivorous bird population

Sébastien Rioux Paquette, Fanie Pelletier, Dany Garant & Marc Bélisle
Migratory bird species that feed on air-borne insects are experiencing widespread regional declines, but these remain poorly understood. Agricultural intensification in the breeding range is often regarded as one of the main drivers of these declines. Here, we tested the hypothesis that body mass in breeding individuals should reflect habitat quality in an aerial insectivore, the tree swallow (Tachycineta bicolor), along a gradient of agricultural intensity. Our dataset was collected over 7 years (2005–2011) and...

Registration Year

  • 2021
    1
  • 2020
    11
  • 2019
    9
  • 2018
    11
  • 2017
    15
  • 2016
    17
  • 2015
    15
  • 2014
    9
  • 2013
    3
  • 2012
    2

Resource Types

  • Dataset
    93
  • Text
    1

Affiliations

  • Université de Sherbrooke
    94
  • University of Quebec at Montreal
    12
  • University of Alberta
    9
  • Université Laval
    9
  • University of Edinburgh
    5
  • Swedish University of Agricultural Sciences
    5
  • Centre d'Ecologie Fonctionnelle et Evolutive
    4
  • French National Centre for Scientific Research
    4
  • The Arctic University of Norway
    3
  • University of Melbourne
    3