McGill2008

Référence

McGill, B.J. (2008) Exploring predictions of abundance from body mass using hierarchical comparative approaches. American Naturalist, 172(1):88-101.

Résumé

Understanding and predicting how and why abundance varies is one of the central questions in ecology. One of the few consistent predictors of variation in abundance between species has been body mass, but the nature of this relationship has been contentious. Here I explore the relationship between body mass and abundance in birds of North America, using hierarchical partitioning of variance and regressions at taxonomic levels above the species. These analyses show that much variation in abundance is found across space, while a moderate amount of variation is found at the species/genus and also at the family/order level. However, body size and trophic level primarily vary at the family/order level, suggesting that mechanisms based on body size and energy should primarily explain only this moderate-sized, taxonomically conserved component of variation in abundance. Body size does explain more than 50% of the variation at this level (and almost 75% when trophic level is also included). This tighter relationship makes clear that energetic equivalence (slope = -3/4) sets an upper limit but does not describe the relationship between body mass and average abundance for birds of North America. Finally, I suggest that this hierarchical, multivariate approach should be used more often in macroecology.

Format EndNote

Vous pouvez importer cette référence dans EndNote.

Format BibTeX-CSV

Vous pouvez importer cette référence en format BibTeX-CSV.

Format BibTeX

Vous pouvez copier l'entrée BibTeX de cette référence ci-bas, ou l'importer directement dans un logiciel tel que JabRef .

@ARTICLE { McGill2008,
    AUTHOR = { McGill, B.J. },
    TITLE = { Exploring predictions of abundance from body mass using hierarchical comparative approaches },
    JOURNAL = { American Naturalist },
    YEAR = { 2008 },
    VOLUME = { 172 },
    PAGES = { 88-101 },
    NUMBER = { 1 },
    MONTH = { jul },
    AF = { McGill, Brian J. },
    DE = { scale; energetic equivalence; Damuth's rule; mass-abundance },
    PG = { 14 },
    SN = { 0003-0147 },
    UT = { ISI:000256752600012 },
    ABSTRACT = { Understanding and predicting how and why abundance varies is one of the central questions in ecology. One of the few consistent predictors of variation in abundance between species has been body mass, but the nature of this relationship has been contentious. Here I explore the relationship between body mass and abundance in birds of North America, using hierarchical partitioning of variance and regressions at taxonomic levels above the species. These analyses show that much variation in abundance is found across space, while a moderate amount of variation is found at the species/genus and also at the family/order level. However, body size and trophic level primarily vary at the family/order level, suggesting that mechanisms based on body size and energy should primarily explain only this moderate-sized, taxonomically conserved component of variation in abundance. Body size does explain more than 50% of the variation at this level (and almost 75% when trophic level is also included). This tighter relationship makes clear that energetic equivalence (slope = -3/4) sets an upper limit but does not describe the relationship between body mass and average abundance for birds of North America. Finally, I suggest that this hierarchical, multivariate approach should be used more often in macroecology. },
    KEYWORDS = { VARIANCE COMPONENT ESTIMATION; ROCKY INTERTIDAL COMMUNITIES; ENERGETIC EQUIVALENCE RULE; MEADOW PLANT-COMMUNITIES; POPULATION-DENSITY; SPECIES RICHNESS; NICHE STRUCTURE; LIFE-HISTORY; FOOD WEBS; SIZE },
    OWNER = { brugerolles },
    TIMESTAMP = { 2008.07.11 },
}

********************************************************** *************************** FRQNT ************************ **********************************************************

Le CEF est un
regroupement stratégique du

********************************************************** *********************** Infolettre *********************** **********************************************************

Abonnez-vous à
l'Infolettre du CEF!

**********************************************************

***************** Formations et Écoles d'été ****************** **********************************************************

Formations et Écoles d'été

Drones et applications en foresterie 
25 et 26 mai 2022, Sherbrooke mais à distance

********************************************************** ***************** Pub - Colloque du CEF ****************** **********************************************************

********************************************************** ***************** Pub - Colloque NAFEW ****************** **********************************************************

********************************************************** ***************** Pub - Colloque NAFEW ****************** **********************************************************

********************************************************** ***************** Pub - NADEF 2022 ****************** **********************************************************

15 au 25 Juin à la FERLD
Inscriptions ouvertes 

********************************************************** *************** Pub - Colloque Mycorhize ***************** **********************************************************

********************************************************** ********* Mémoire CEF Changements Climatiques ************ **********************************************************

**********************************************************

***************** Pub - Symphonies_Boreales ****************** **********************************************************

********************************************************** ***************** Boîte à trucs *************** **********************************************************

CEF-Référence
La référence vedette !

  • Voici une liste (clairement incomplète) des packages R axés sur l'écologie! N'hésitez pas à ajouter à la liste

Voir les autres...