Quantifying the mutualism-antagonism continuum for seed removal by a granivorous disperser

Rehling, Finn; Jongejans, Eelke; Farwig, Nina; Schabo, Dana G.

doi:10.1016/j.baae.2024.02.005

Basic and Applied Ecology

2024

DOI: 10.1016/j.baae.2024.02.005

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Quantifying the mutualism-antagonism continuum for seed removal by a granivorous disperser

Finn Rehling,

Eelke Jongejans,

Nina Farwig

et al.

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2024

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Seed dispersal by the cosmopolitan house sparrow widens the spectrum of unexpected endozoochory by granivore birds

Blanco,

Chamorro,

Lovas‐Kiss

et al. 2024

Ecology and Evolution

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In the intricate web of plant–animal interactions, granivore birds can play a dual antagonist–mutualist role as seed predators and dispersers. This study delves into the ecological significance of the house sparrow (Passer domesticus) as seed disperser by endozoochory. A sample of individual droppings and faecal pools were collected from a communal roost in central Spain to examine the presence of seeds. Seed viability was determined using the tetrazolium test. Our findings revealed that around 22% of the analysed droppings contained seeds, contradicting the prevalent notion of house sparrow solely as seed predator. Viability tests demonstrated that 53.9% of the defecated seeds were viable, although it varied between plant species, including those from fleshy‐fruited common fig and five species of dry‐fruited herbs. This study challenges the traditional perspectives on the ecological role of the house sparrow, and glimpses on their contribution to seed dispersal. Understanding the nuanced roles of granivore species like the house sparrow is crucial for developing holistic conservation and management strategies in urban and agricultural landscapes. Future studies are encouraged to unravel the actual role of this cosmopolitan species as disperser of a likely broad spectrum of wild, cultivated and exotic plants.

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Seed dispersal by the cosmopolitan house sparrow widens the spectrum of unexpected endozoochory by granivore birds

Blanco,

Chamorro,

Lovas‐Kiss

et al. 2024

Ecology and Evolution

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show abstract

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Quantifying the mutualism-antagonism continuum for seed removal by a granivorous disperser

Cited by 1 publication

References 53 publications

Seed dispersal by the cosmopolitan house sparrow widens the spectrum of unexpected endozoochory by granivore birds

Seed dispersal by the cosmopolitan house sparrow widens the spectrum of unexpected endozoochory by granivore birds

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