Seed production of co-occurring species: Regenerative strategies, plant economic spectrum or architectural constraints?

Albert, Ágnes‐Júlia; Bitomský, Martin; Götzenberger, Lars; Mudrák, Ondřej; Klimešová, Jitka

doi:10.1016/j.baae.2021.12.001

Cited by 3 publications

(1 citation statement)

References 33 publications

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“…Tree species are often architecturally more complex, more apparent to insects (sensu Feeny, 1976) and usually produce larger fruits and/or seeds than congeneric shrubs (Moles & Westoby 2006; Fagundes et al 2013; Ágnes‐Júlia et al, 2022). In addition, female EPIs must locate larger seeds for oviposition to ensure highest success of their offspring (Canto et al, 2019; Celis‐Diez et al, 2004; Cope & Fox, 2003; Souza & Fagundes, 2017).…”

Section: Discussionmentioning

confidence: 99%

Contrasting patterns of host selection and performance of insect seed predators on three sympatric host plant species

Fagundes,

Fernandes,

Neves

et al. 2023

Ecological Entomology

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Characterising host selection mechanisms and the performance of seed‐predating insects on different hosts has broad implications for ecology and applied entomology. We assessed host selection and performance of endophagous seed‐predating insects on three species of Copaifera, testing two hypotheses: (i) large‐sized trees produce larger seeds and have higher levels of seed predation than their smaller congeneric relatives, and (ii) endophagous seed‐predating insects that develop in larger‐seeded trees exhibit higher body mass, lipid content, and muscle mass as they obtain higher amount of food resources. Unpredated seeds of the large‐sized Copaifera langsdorffii showed greater mass than their smaller congeneric relatives C. arenicola and C. oblongifolia. Two species of endophagous seed‐predating beetles (Rhinochenus brevicollis and Apion sp.) were found attacking seeds of the three Copaifera species. Rhinochenus brevicollis preyed on a higher percentage of seeds than Apion sp. The shrub C. oblongifolia had the highest percentage of seed predation, contradicting our original hypothesis that larger species have a higher percentage of seed predation. Rhinochenus brevicollis preyed on a higher percentage of seeds of larger‐sized species than Apion sp. The higher dispersal ability of R. brevicollis associated with different patterns of plant species distribution may be the mechanism driving differential seed predation among Copaifera species. Adult insects that emerged from C. langsdorffii seeds showed higher body mass and lipidic content. It is likely that insects developing in larger seeds obtain a higher amount of food resources during their development. Finally, we observed a positive relationship between body weight and lipidic content in adults of R. brevicollis. We suggest that studies shedding light onto insect performance in different host‐sized seeds are necessary to understand host selection by beetles.

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Section: Discussionmentioning

confidence: 99%

Contrasting patterns of host selection and performance of insect seed predators on three sympatric host plant species

Fagundes,

Fernandes,

Neves

et al. 2023

Ecological Entomology

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The effects of grazing on flowering and fruiting phenology in South Brazilian subtropical grasslands

Minervini Silva,

Menezes,

Torchelsen

et al. 2024

Flora

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Ukraine’s Market of Certified Seed: Current State and Prospects for the Future

et al. 2022

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The production of high-quality seeds and planting material is the basis for increasing the efficiency and sustainability of crop production. The main aim of this article is to develop proposals to ensure that supply meets the demand in the seed and planting material market Ukraine. The future prospects are also discussed. The paper uses statistical and comparative analysis. The patterns of foreign trade in seeds and planting material to and from Ukraine are analyzed. The high level of import dependence of Ukraine leads to excessive exposure to instability in the world seed market. The development of seed production in Ukraine is discussed and analyzed along with the ways for improving commercial circulation of seeds and planting materials. The export volumes of grains and oilseeds in 2020 were the highest of those over the last three decades and amounted to USD 18.7 million, which is almost twice more than in 2019. Corn seeds dominate in exports (72%). The volume of imports of seeds of grains and oilseeds exceeded exports by 22 times in value and, in 2020, amounted to USD 409.4 million. In the total volume of imports, imports of sunflower seeds accounted for 53%. The upward trend of seed imports has been maintained since 2010. It was the result of increased demand for imported seeds by large- and medium-sized agricultural producers. In 2020, COVID-19 gave impetus to the development of domestic seed production and foreign breeding companies within the country. Prospective ways to accelerate the development of the organization of the Ukrainian seed and planting material market are outlined. Ukraine has prospects for increasing the export of seeds of grains and oilseeds by expanding its production by foreign companies operating in Ukraine. Solving problems of competitiveness seed production in Ukraine will make it possible to strengthen the role of domestic breeding in the seed market, as well as to use the best foreign varieties through their commercial circulation.

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Seed production of co-occurring species: Regenerative strategies, plant economic spectrum or architectural constraints?

Cited by 3 publications

References 33 publications

Contrasting patterns of host selection and performance of insect seed predators on three sympatric host plant species

Contrasting patterns of host selection and performance of insect seed predators on three sympatric host plant species

The effects of grazing on flowering and fruiting phenology in South Brazilian subtropical grasslands

Ukraine’s Market of Certified Seed: Current State and Prospects for the Future

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