Plantlet recruitment is the key demographic transition in invasion by<i>Kalanchoe daigremontiana</i>

Herrera, Ileana; Hernandez, Maria–Josefina; Lampo, Margarita; Nassar, Jafet M.

doi:10.1007/s10144-011-0282-5

Cited by 24 publications

(26 citation statements)

References 76 publications

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“…Certainly, the nothospecies can produce large infestations, that in some cases may derive into dense monospecific phytocoenosis. Under favorable conditions (open, sunny areas under relatively dry or even semiarid conditions, on sandy or rocky soils; see below), densities may reach 1000-2000 individuals/m 2 when plantlets and seedlings are produced 19,22 (Supplementary Fig. S3E).…”

Section: Discussionmentioning

confidence: 99%

“…Such estimates are based on recruitment of asexual plantlets, due to the asexual plantlets ability to reproduce in less than one year. In contrast, sexual seedlings require a minimum of three years to reproduce 19 . According to Herrera et al 19 , this strategy allows quick population growth during the initial phases of invasion, when populations are more susceptible to Allee effects or to post-introduction demographic bottlenecks.…”

Section: Discussionmentioning

confidence: 99%

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Global distribution patterns and niche modelling of the invasive Kalanchoe × houghtonii (Crassulaceae)

Herrando‐Moraira

Vitales

Nualart

et al. 2020

Sci Rep

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Invasive alien species are currently considered one of the main threats to global biodiversity. One of the most rapidly expanding invasive plants in recent times is Kalanchoe × houghtonii (Crassulaceae), an artificial hybrid created in the 1930s in the United States by experimental crossings between K. daigremontiana and K. tubiflora, two species endemic to Madagascar. Thanks to its large colonizing capacity (mainly derived from the production of asexual plantlets), K. × houghtonii soon escaped from cultivation and quickly spread in many parts of the world. However, its actual range is not well known due to the lack of a formal description until recent times (2006) and its strong morphological resemblance with one of its parentals (K. daigremontiana). The present study was aimed, in the first instance, to delimit the present distribution area of K. × houghtonii at the global scale by gathering and validating all its occurrences and to track its colonization history. Currently, K. × houghtonii can be found on all continents except Antarctica, although it did not reach a global distribution until the 2000s. Its potential distribution, estimated with MaxEnt modelling software, is mainly centered in subtropical regions, from 20° to 40° of both northern and southern latitudes, mostly in areas with a high anthropogenic activity. Unexpectedly, concomitant to a poleward migration, future niche models suggest a considerable reduction of its range by up to one-third compared to the present, which might be related with the Crassulaceaean Acid Metabolism (CAM) of K. × houghtonii. Further research may shed light as to whether a decrease in potential habitats constitutes a general pattern for crassulaceae and CAM plants.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Global distribution patterns and niche modelling of the invasive Kalanchoe × houghtonii (Crassulaceae)

Herrando‐Moraira

Vitales

Nualart

et al. 2020

Sci Rep

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“…The population growth of K. pinnata is mostly supported by vegetative reproduction, which is a trait shared with other invasive Kalanchoe species such as K. daigremontiana (Herrera et al. ). In addition, changes in life history traits such as seedling survival and juvenile growth can severely affect the population growth rate, whereas an increase in seed production is irrelevant.…”

Section: Discussionmentioning

confidence: 99%

“…Further investigations and constant monitoring of the population of K. pinnata in the SDTFvr are needed to confirm these changes, which may include an invasion meltdown involving K. pinnata and bees (Simberloff and Von Holle 1999), and a case of rapid evolution as the invasion process matures (Lee 2002;Maron et al 2004). The population growth of K. pinnata is mostly supported by vegetative reproduction, which is a trait shared with other invasive Kalanchoe species such as K. daigremontiana (Herrera et al 2012). In addition, changes in life history traits such as seedling survival and juvenile growth can severely affect the population growth rate, whereas an increase in seed production is irrelevant.…”

Section: Discussionmentioning

confidence: 99%

Mating system, population growth, and management scenario for Kalanchoe pinnata in an invaded seasonally dry tropical forest

León

Herrera

Guevara

2016

Ecology and Evolution

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Ecological invasions are a major issue worldwide, where successful invasion depends on traits that facilitate dispersion, establishment, and population growth. The nonnative succulent plant Kalanchoe pinnata, reported as invasive in some countries, is widespread in remnants of seasonally dry tropical forest on a volcanic outcrop with high conservation value in east‐central Mexico where we assessed its mating system and demographic growth and identified management strategies. To understand its local mating system, we conducted hand‐pollination treatments, germination, and survival experiments. Based on the experimental data, we constructed a life‐stage population matrix, identified the key traits for population growth, weighted the contributions of vegetative and sexual reproduction, and evaluated management scenarios. Hand‐pollination treatments had slight effects on fruit and seed setting, as well as on germination. With natural pollination treatment, the successful germination of seeds from only 2/39 fruit suggests occasional effective natural cross‐pollination. The ratios of the metrics for self‐ and cross‐pollinated flowers suggest that K. pinnata is partially self‐compatible. Most of the pollinated flowers developed into fruit, but the seed germination and seedling survival rates were low. Thus, vegetative propagation and juvenile survival are the main drivers of population growth. Simulations of a virtual K. pinnata population suggest that an intense and sustained weeding campaign will reduce the population within at least 10 years. Synthesis and applications. The study population is partially self‐compatible, but sexual reproduction by K. pinnata is limited at the study site, and population growth is supported by vegetative propagation and juvenile survival. Demographic modeling provides key insights and realistic forecasts on invasion process and therefore is useful to design management strategies.

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“…Kalanchoe × houghtonii was observed in the wild in Australia as early as 1965 (AVH ), and the plant has been reported throughout America (including the Caribbean islands), southern Europe, Asia (India), and Oceania (apart from Australia, in some Polynesian islands and in New Zealand) (Guillot et al ). In some of these areas it has become a strong invader, such as in Queensland, Australia (Queensland Government ) and Venezuela (erroneously identified as K. daigremontiana ; Herrera et al ).…”

Section: Methodsmentioning

confidence: 99%

Kalanchoe (Crassulaceae) as invasive aliens in China – new records, and actual and potential distribution

Wang

Guillot

Ren

et al. 2016

Nordic Journal of Botany

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Kalanchoe daigremontiana and K. delagoensis are reported for the first time from Sichuan and Hainan, China. For K. daigremontiana, a new population located in Chengdu downtown has been found, being the first one in western China and thus representing a significant range extension of this species within the country. For K. delagoensis, a new population has been observed in the Old Quarter of Haikou, being the southernmost population of this species in China. The distribution areas of both species in China are summarized based on a review of the literature, as well as that of their putative hybrid, K. × houghtonii. In addition, the potential range of K. delagoensis is estimated through a niche‐based modelling approach. Finally, a key to taxa of Kalanchoe in China is provided.

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Plantlet recruitment is the key demographic transition in invasion byKalanchoe daigremontiana

Abstract: Biological invasions have a great impact on biodiversity and ecosystem functioning worldwide.

Cited by 24 publications

References 76 publications

Global distribution patterns and niche modelling of the invasive Kalanchoe × houghtonii (Crassulaceae)

Global distribution patterns and niche modelling of the invasive Kalanchoe × houghtonii (Crassulaceae)

Mating system, population growth, and management scenario for Kalanchoe pinnata in an invaded seasonally dry tropical forest

Kalanchoe (Crassulaceae) as invasive aliens in China – new records, and actual and potential distribution

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