2018
DOI: 10.1111/1365-2745.13064
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An experimental investigation of top–down effects of consumer diversity on producer temporal stability

Abstract: In multitrophic systems, the diversity of consumers can affect the abundances and temporal stability of the species they consume via ‘top‐down’ effects. However, little is known about how variation in consumer functional diversity affects the temporal stability of aggregate producer communities. We use data from a long‐term experiment to determine how variation in rodent granivore functional richness affected the temporal stability of the annual plant communities whose seeds they consume. Experimental plots ex… Show more

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Cited by 7 publications
(8 citation statements)
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“…Structural landscape features are important in studies that observe species associations and interactions. Shrubs typically benefit animal communities in arid ecosystems through many mechanisms including acting as a refuge (Valone and Balaban‐Feld 2019), escape from harsh temperature (Westphal et al 2018, Ivey et al 2020), acting as a food source for some small animals (Lortie et al 2020), and predation avoidance (Filazzola et al 2017). The facilitative effects associated with Ephedra californica provide these necessary functions to animal species (Noble et al 2016, Westphal et al 2018).…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…Structural landscape features are important in studies that observe species associations and interactions. Shrubs typically benefit animal communities in arid ecosystems through many mechanisms including acting as a refuge (Valone and Balaban‐Feld 2019), escape from harsh temperature (Westphal et al 2018, Ivey et al 2020), acting as a food source for some small animals (Lortie et al 2020), and predation avoidance (Filazzola et al 2017). The facilitative effects associated with Ephedra californica provide these necessary functions to animal species (Noble et al 2016, Westphal et al 2018).…”
Section: Discussionmentioning
confidence: 99%
“…Vertebrate species such as Dipodomys ingens have a higher association at open areas than invertebrate species. However, these small rodent species have been observed to consume seeds from desert shrub (Valone and Balaban‐Feld 2019), suggesting that resource availability may be a driving factor in vertebrate association. The variation in shrub and open microsites is primarily driven by intraspecific associations between animal species.…”
Section: Discussionmentioning
confidence: 99%
“…The predators' effects on zooplankton diversity were weaker than the effects on zooplankton mass, they were additive rather than synergistic, and they were negative. We would expect such a decline in herbivore diversity to have a de-stabilizing or neutral effect on phytoplankton, not a stabilizing effect (Valone and Balaban-Feld 2019).…”
Section: Discussionmentioning
confidence: 96%
“…However, causes of spatial variation in herbivory are poorly understood. Improved ability to predict where herbivores heavily damage plants will inform fundamental ecological questions because both invertebrate and vertebrate herbivores can limit plant populations (Bricker & Maron, 2012; Tenhumberg et al, 2015) and affect plant community composition (Carson & Root, 2000; Valone & Balaban‐Feld, 2019). Conceptual models of herbivore foraging represent food plant selection as a series of decisions at successively finer spatial scales, from landscapes to plant communities to individual plants (Senft et al, 1987; Miller et al, 2009).…”
Section: Introductionmentioning
confidence: 99%