Comparative reproductive biology of two Florida pawpaws asimina reticulata chapman and asimina tetramera small

Cox, Anne Cheney

doi:10.25148/etd.fi14061532

Cited by 3 publications

(3 citation statements)

References 7 publications

(8 reference statements)

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“…Beetle florivores may benefit some plants as pollinators (Gottsberger 1977), and they certainly do so in Annonaceae such as Asimina spp. (Cox 1998) and Duguetia spp. (H. P. Neto, personal communication).…”

Section: Floral Herbivorymentioning

confidence: 99%

Effects of Florivory on the Pollination of Flowers: An Experimental Field Study with a Perennial Plant

Cardel

Koptur

2010

International Journal of Plant Sciences

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JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact support@jstor.org.. The University of Chicago Press is collaborating with JSTOR to digitize, preserve and extend access to International Journal of Plant Sciences.Plants experience damage to both their vegetative and their reproductive parts. Loss of leaf area can affect subsequent photosynthesis and resources available for growth and reproduction; damage to flowers can result in loss of ovules and seeds by consumption, but herbivory may also disfigure flowers, interfering with their functions of attracting and rewarding pollinators. We examined natural populations of the butterfly pea, Centrosema virginianum, in pine rockland habitat in Everglades National Park (intact habitat) and a pine rockland fragment in suburban Miami-Dade County to answer the following questions: (1) What is the breeding system of C. virginianum? (2) What are the pollinators of this species in southern Florida pine rocklands? And (3) how are flower herbivores affecting pollinator visitation and subsequent fruit set? Controlled hand-pollination experiments revealed this species to be self-compatible but requiring visitation/pollination for fruit set. Crosspollinated flowers and open-pollinated flowers set substantially more seed per fruit than did self-pollinated flowers. Flowers are visited by a variety of bees (Bombus pensylvanicus, Xylocopa micans, Megachile spp., and Melissodes spp.), which serve as pollinators. Flowers were produced abundantly in areas that had experienced recent fires, and roughly half of the flowers were damaged by one of two florivore guilds (blister beetles that ate the flowers and petal-sucking flies in the family Agromyzidae). Damaged flowers were visited much less frequently by pollinators than were undamaged flowers, and, consequently, they set many fewer fruit and much less seed. We conclude that florivory is a major impediment to successful pollination and plant sexual reproduction of C. virginianum in areas where the species naturally occurs.

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Section: Floral Herbivorymentioning

confidence: 99%

Effects of Florivory on the Pollination of Flowers: An Experimental Field Study with a Perennial Plant

Cardel

Koptur

2010

International Journal of Plant Sciences

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“…(2006); 17, Ratnayake et al . (2007); 18, Goodrich & Raguso (2009); 19, Cox (1998); 20, Norman et al . (1992); 21, Teichert (2008); 22, Teichert et al .…”

Section: Floral Scent Chemistry and Pollination In Annonaceaementioning

confidence: 98%

Floral scent in Annonaceae

Goodrich

2012

Botanical Journal of the Linnean Society

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Many species of Annonaceae are known for their distinctive, penetrating floral aromas. Numerous pollination studies have documented floral scents which probably play a key role in specialized pollination strategies. In particular, floral scents appear to play crucial roles in deceptive pollination strategies, contributing to floral mimicry of ripe or decaying fruits, fungi and, potentially, carrion or faeces. Occasionally, floral scent may advertise genuine floral rewards, as is the case for two species of Unonopsis pollinated by male euglossine bees. To date, ten studies have chemically characterized floral scent for 24 species representing 11 genera of Annonaceae. In this review, I discuss the chemical composition and diversity of the analysed floral scents in Annonaceae. I also summarize and discuss a wide range of (human) perceptual descriptions of floral scent found throughout the literature on Annonaceae. I have framed discussions of floral scent in Annonaceae in ecological and evolutionary contexts whenever possible. © 2012 The Linnean Society of London, Botanical Journal of the Linnean Society, 2012, 169, 262–279.

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“…Shifts in niche evolution appear to be associated with increasing seasonal environments (Supplementary Table S7; Supplementary Figure S6), which lag behind species diversification. It is noteworthy that Asimina is the only Annonaceae genus fully adapted to freezing temperatures (Hormaza, 2014), and it is a good example of a genus which experienced a climatic niche shift following migration from tropical East Asia to temperate North America (Kral, 1960;Li et al, 2017), and following the evolution of protogynous flowering with an extended flowering period (Kral, 1960;Willson and Schemske, 1980;Lagrange and Tramer, 1985;Norman and Clayton, 1986;Norman et al, 1992;Cox, 1998;Losada et al, 2017) and stigmatic secretions that cover all stigmas (Losada et al, 2017). The evolution of these traits allows Asimina to thrive in Net diversification rate based on BAMM analysis (red line) and climatic PC1 and PC2 evolution rates over time (orange line and blue line, respectively).…”

Section: Do Diversification Rates Reflect Climate Niche Lability?mentioning

confidence: 99%

Climatic and biogeographic processes underlying the diversification of the pantropical flowering plant family Annonaceae

Li,

Wang,

Liu

et al. 2024

Front. Plant Sci.

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Tropical forests harbor the richest biodiversity among terrestrial ecosystems, but few studies have addressed the underlying processes of species diversification in these ecosystems. We use the pantropical flowering plant family Annonaceae as a study system to investigate how climate and biogeographic events contribute to diversification. A super-matrix phylogeny comprising 835 taxa (34% of Annonaceae species) based on eight chloroplast regions was used in this study. We show that global temperature may better explain the recent rapid diversification in Annonaceae than time and constant models. Accelerated accumulation of niche divergence (around 15 Ma) lags behind the increase of diversification rate (around 25 Ma), reflecting a heterogeneous transition to recent diversity increases. Biogeographic events are related to only two of the five diversification rate shifts detected. Shifts in niche evolution nevertheless appear to be associated with increasingly seasonal environments. Our results do not support the direct correlation of any particular climatic niche shifts or historical biogeographical event with shifts in diversification rate. Instead, we suggest that Annonaceae diversification can lead to later niche divergence as a result of increasing interspecific competition arising from species accumulation. Shifts in niche evolution appear to be associated with increasingly seasonal environments. Our results highlight the complexity of diversification in taxa with long evolutionary histories.

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Comparative reproductive biology of two Florida pawpaws asimina reticulata chapman and asimina tetramera small

Cited by 3 publications

References 7 publications

Effects of Florivory on the Pollination of Flowers: An Experimental Field Study with a Perennial Plant

Effects of Florivory on the Pollination of Flowers: An Experimental Field Study with a Perennial Plant

Floral scent in Annonaceae

Climatic and biogeographic processes underlying the diversification of the pantropical flowering plant family Annonaceae

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