Quantifying the outcome of plant–granivore interactions

Zwolak, Rafał; Crone, Elizabeth E.

doi:10.1111/j.1600-0706.2011.19849.x

Cited by 73 publications

(119 citation statements)

References 54 publications

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“…They can influence tree recruitment through selective foraging on seeds (García et al 2005;Zwolak et al 2010) and seedlings (Ostfeld et al 1997;Gómez et al 2003). On the other hand, many species of rodents promote forest regeneration by dispersing seeds and caching them in safe sites (den Ouden et al 2005;Zwolak and Crone 2012). Small mammals also eat and disperse spores of mycorrhizal fungi, thus enhancing functioning of forest trees (Schickmann et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Responses of small mammals to clear-cutting in temperate and boreal forests of Europe: a meta-analysis and review

Bogdziewicz

Zwolak

2013

Eur J Forest Res

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We analyzed the responses of small mammals to clear-cutting in temperate and boreal forests in Europe. We conducted a meta-analysis of published research on most often studied small mammal species (the striped field mouse, the yellow-necked mouse, the wood mouse, the field vole, the common vole, the bank vole, the Eurasian harvest mouse, the common shrew and the Eurasian pygmy shrew), comparing their abundance on clear-cuts and in unharvested stands. For four other species (the gray-sided vole, the Siberian flying squirrel, the Eurasian red squirrel and the hazel dormouse), we provide a qualitative review of their responses to forest harvest. Results of the metaanalysis suggest that common species of small mammals usually increase in abundance after clear-cutting or are unaffected by this disturbance. As an exception, the yellow-necked mouse declines after clear-cutting in boreal but not in temperate forest. The qualitative review suggests that the responses of more specialized (e.g., arboreal) species to forest harvest are more varied than the responses of generalist species included in the meta-analysis. For some species of small mammals (e.g., the Siberian flying squirrel), habitat loss resulting from forest harvest is a major threat.

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Section: Introductionmentioning

confidence: 99%

Responses of small mammals to clear-cutting in temperate and boreal forests of Europe: a meta-analysis and review

Bogdziewicz

Zwolak

2013

Eur J Forest Res

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“…Vander Wall 1990 and literature cited therein; Norconk et al 1998). Propagules overlooked by the hoarder, and which can also escape detection by other animals, can germinate successfully (Vander Wall 1990Zwolak and Crone 2011;Lenda et al 2012).…”

Section: Introductionmentioning

confidence: 99%

The effectiveness of endozoochory in three avian seed predators

et al. 2015

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The role of granivorous birds as agents of seed dispersal has been little explored and is poorly understood. We assessed the ability of three species of birds from a Central European agricultural landscape to disperse seeds of dry-fruited plants. We hypothesised that Grey Partridge Perdix perdix is a better seed disperser than either of two species of buntings-Yellowhammer Emberiza citrinella and Reed Bunting Emberiza schoeniclus-in terms of the number of intact seeds recovered from their droppings. Partridge droppings contained the highest number of intact seeds. Surprisingly, however, the number of intact seeds per 1 g of droppings was the highest in Reed Bunting, smaller in Grey Partridge and the smallest in Yellowhammer. Our findings suggest that the passage of intact seeds of dryfruited plants through the digestive tract of seed-eating birds is most likely an effect of limited digestion, resulting from the intake of a large volume of seeds, a small part of which remains undigested. This effect could be magnified by the inclusion in the diet of some items of different digestibility (invertebrates or leaves). We suggest that non-standard dispersal of seeds with no adaptations to endozoochory by birds is a far more frequent and as yet under-appreciated phenomenon, which has potential ecological implications for the colonisation of new habitats/islands by plants. The ultimate elucidation of this process is extremely difficult and would require large sets of faeces to be examined.

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“…Field evidence has shown that the survival or dispersal of individual seeds can change dramatically over a short timescale for a given plant population (Vander Wall 2002, Jansen et al 2004, Klinger and Rejmánek 2010, Xiao et al 2013). This may be the key point for many researchers to argue that the mutualism between scatterhoarders and plants is contextdependent (Theimer 2005, Klinger and Rejmánek 2010, Zwolak and Crone 2012. In summary, we propose three models to quantify the costs and benefits to a plant in relation to scatterhoarding animals that act as seed predators and seed dispersers.…”

Section: Discussionmentioning

confidence: 99%

“…Otherwise, plant populations cannot be sustained and would go extinct (Latta 2010). There are few measurements of whether recruitment in plants benefits from seed dispersal via scatterhoarding animals (Jansen and Forget 2001, Theimer 2005, Zwolak and Crone 2012.…”

Section: Introductionmentioning

confidence: 99%

“…If scatterhoarding has weak effects on seedling emergence but strong effects on any of other later establishment stages, this may lead to an underestimation of the relative importance of scatterhoarding. (3) The costs and benefits for any interacting pair of species should be measured to determine whether their interactions are mutualistic or not (Bronstein 1994, Theimer 2005, Zwolak and Crone 2012. However, Fig.…”

Section: Introductionmentioning

confidence: 99%

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Modeling the costs and benefits of seed scatterhoarding to plants

Xiao

2015

Ecosphere

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Citation: Xiao, Z., and C. J. Krebs. 2015. Modeling the costs and benefits of seed scatterhoarding to plants. Ecosphere 6(4):53. http://dx.doi.org/10.1890/ES14-00438.1Abstract. Many plants interact with scatterhoarding animals as mutualists (seed dispersers) and antagonists (seed predators) simultaneously, but the net effects of scatterhoarding animals are rarely measured. In seed-dispersal mutualisms, plant benefits (recruitment) received from dispersal agents should outweigh the costs, resulting in a relative fitness gain. Otherwise, plant populations cannot be sustained and would go extinct. Here we present a framework to quantify costs and benefits of scatterhoarding for animal-dispersed plants and propose three models with the three separate scales (seed, tree and population) to quantify the costs and benefits for plants from scatterhoarding rodents. Since scatterhoarding is an adaptive dispersal strategy for many large-seeded plants, tree-and population-based models are needed to determine the costs and benefits for the plants. In the models presented here, all relevant parameters can be measured by regular surveys. Our tree-and population-based models can be extended to seed plants that have dispersal agents other than scatter hoarding rodents.

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Quantifying the outcome of plant–granivore interactions

Cited by 73 publications

References 54 publications

Responses of small mammals to clear-cutting in temperate and boreal forests of Europe: a meta-analysis and review

Responses of small mammals to clear-cutting in temperate and boreal forests of Europe: a meta-analysis and review

The effectiveness of endozoochory in three avian seed predators

Modeling the costs and benefits of seed scatterhoarding to plants

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