Chronic leaf harvesting reduces reproductive success of a tropical dry forest palm in northern Mexico

López-Toledo, Leonel; Perez-Decelis, Angeles; Macedo-Santana, Franceli; Cuevas, Eduardo; Endress, Bryan A.

doi:10.1371/journal.pone.0205178

Cited by 11 publications

(9 citation statements)

References 51 publications

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“…Specifically, the number of seeds of Caragana stenophylla was strongly decreased by the interaction between high aridity and grazing in a dry forest in China (Xie, Chen, et al, 2016). Additionally, intense leaf harvesting leads to decreased flower and fruit production in Brahea aculeata (Lopez-Toledo et al, 2018), and drought is significantly associated with a reduction in the number of inflorescences in Trichloris crinita, as mentioned above (Quironga et al, 2010). Depending on the source of anthropogenic disturbance and its interaction with climate change, significant effects on the reproductive aspects of plants may not be detected (e.g.…”

Section: Discussionmentioning

confidence: 98%

Aridity mediates the effect of wood extraction on the reproductive output of an endemic disturbance‐adapted woody species (Cenostigma microphyllum, Leguminosae) in the Caatinga dry forest

et al. 2022

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Chronic anthropogenic disturbances and climate change have been recognized as drivers of biological reorganization across human‐modified tropical landscapes, also negatively affecting the reproductive output of some plant species. Here, we investigated to what extent these drivers affect the reproductive output of Cenostigma microphyllum, a disturbance‐adapted tree species endemic to the Caatinga dry forest. The production of flowers/inflorescence, fruits and seeds was estimated for 105 plants (≥3 cm diameter at soil height) across 11 forest stands (20 × 50 m each), covering gradients of chronic disturbances (e.g. goat and livestock herbivory; wood extraction; and removal of non‐timber forest products) and aridity at the Catimbau National Park. We documented that when the drivers were analysed in isolation, the fruit‐set was positively associated with increased wood extraction, and the fruit‐set and total number of seeds/plots were reduced under increasing aridity. We also verified a complex interaction between wood extraction and aridity emerged. In forest stands, the combination of high levels of aridity and wood extraction leads to a decrease in the fruit‐set and total number of seeds/plots. Conversely, the fruit‐set and total number of seeds/plots increased in stands exposed to lower aridity but high levels of wood extraction. Our results suggest that chronic disturbances and aridity affect plant fitness in a complex way including both negative and positive effects on attributes related to plant reproductive performance, which could result in both proliferation and population decline in the same landscape. Although C. microphyllum benefits from anthropogenic disturbances and is considered a disturbance‐adapted species, it apparently does not benefit from increases in aridity, which is an expected future scenario for the Caatinga dry forest.

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Section: Discussionmentioning

confidence: 98%

Aridity mediates the effect of wood extraction on the reproductive output of an endemic disturbance‐adapted woody species (Cenostigma microphyllum, Leguminosae) in the Caatinga dry forest

et al. 2022

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“…While folivory, root herbivory, and stem damage can decrease reproductive output (Mutikainen & Delph, 1996;Lehtilä & Strauss, 1999;Pratt et al, 2005;Lopez-Toledo et al, 2018), it is less clear whether they impact pollinators or pollination. Folivory, root damage, and stem damage were found to negatively impact several floral traits, as well as pollinator visitation and reproduction (Mutikainen & Delph, 1996;Strauss, Conner & Rush, 1996;Mothershead & Marquis, 2000;Hambäck, 2001;Arceo-Gómez, Parra-Tabla & Navarro, 2009;Hladun & Adler, 2009;Barber & Gorden, 2013;Sasal, Farji-Brener & Raffaele, 2017).…”

Section: Effects Of Vegetative Herbivory On Pollinationmentioning

confidence: 99%

A systematic review of the direct and indirect effects of herbivory on plant reproduction mediated by pollination

Haas

Lortie

2020

PeerJ

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Background Plant reproduction is influenced by the net outcome of plant–herbivore and plant–pollinator interactions. While both herbivore impacts and pollinator impacts on plant reproduction have been widely studied, few studies examine them in concert. Methodology Here, we review the contemporary literature that examines the net outcomes of herbivory and pollination on plant reproduction and the impacts of herbivores on pollination through damage to shared host plants using systematic review tools. The direct or indirect effects of herbivores on floral tissue and reported mechanisms were compiled including the taxonomic breadth of herbivores, plants and pollinators. Results A total of 4,304 studies were examined producing 59 relevant studies for synthesis that reported both pollinator and herbivore measures. A total of 49% of studies examined the impact of direct damage to floral tissue through partial florivory while 36% of studies also examined the impact of vegetative damage on pollination through folivory, root herbivory, and stem damage. Only three studies examined the effects of both direct and indirect damage to pollination outcomes within the same study. Conclusions It is not unreasonable to assume that plants often sustain simultaneous forms of damage to different tissues and that the net effects can be assessed through differences in reproductive output. Further research that controls for other relative drivers of reproductive output but examines more than one pathway of damage simultaneously will inform our understanding of the mechanistic relevance of herbivore impacts on pollination and also highlight interactions between herbivores and pollinators through plants. It is clear that herbivory can impact plant fitness through pollination; however, the relative importance of direct and indirect damage to floral tissue on plant reproduction is still largely unknown.

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Section: Effects Of Vegetative Herbivory On Pollinationmentioning

confidence: 99%

Peer Review #1 of "A systematic review of the direct and indirect effects of herbivory on plant reproduction mediated by pollination (v0.1)"

2020

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Background. Plant reproduction is influenced by the net outcome of plant-herbivore and plant-pollinator interactions. While both herbivore impacts and pollinator impacts on plant reproduction have been widely studied, few studies examine them in concert. Methodology. Here, we review the contemporary literature that examines the net outcomes of herbivory and pollination on plant reproduction and the impacts of herbivores on pollination through damage to shared host plants using systematic review tools. The direct or indirect effects of herbivores on floral tissue and reported mechanisms were compiled including the taxonomic breadth of herbivores, plants, and pollinators. Results. A total of 4304 studies were examined producing 61 relevant studies for synthesis that reported both pollinator and herbivore measures. A total of 53% of studies examined the impact of direct damage to floral tissue through partial florivory while 35% of studies also examined the impact of vegetative damage on pollination through folivory, root herbivory, and stem damage. Only 4 studies examined the effects of both direct and indirect damage to pollination outcomes within the same study. Conclusions. It is not unreasonable to assume that plants often sustain simultaneous forms of damage to different tissues and that the net effects can be assessed through differences in reproductive output. Further research that controls for other relative drivers of reproductive output but examines more than one pathway of damage simultaneously will inform our understanding of the mechanistic relevance of herbivore impacts on pollination and also highlight interactions between herbivores and pollinators through plants. It is clear that herbivory can impact plant fitness through pollination; however, the relative importance of direct and indirect damage to floral tissue on plant reproduction is still largely unknown.

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Chronic leaf harvesting reduces reproductive success of a tropical dry forest palm in northern Mexico

Cited by 11 publications

References 51 publications

Aridity mediates the effect of wood extraction on the reproductive output of an endemic disturbance‐adapted woody species (Cenostigma microphyllum, Leguminosae) in the Caatinga dry forest

Aridity mediates the effect of wood extraction on the reproductive output of an endemic disturbance‐adapted woody species (Cenostigma microphyllum, Leguminosae) in the Caatinga dry forest

A systematic review of the direct and indirect effects of herbivory on plant reproduction mediated by pollination

Peer Review #1 of "A systematic review of the direct and indirect effects of herbivory on plant reproduction mediated by pollination (v0.1)"

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