Ludwigia peruviana (Onagraceae) in the Botany Wetlands near Sydney, Australia

Jacobs, Surrey W. L.; Perrett, F.; Sainty, G. R.; Bowmer, Kathleen H.; Jacobs, Bram

doi:10.1071/mf9941481

Cited by 11 publications

(9 citation statements)

References 5 publications

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“…Ludwigia leptocarpa is an annual or short-lived perennial shrub (Dolan and Sharitz 1984) but the exotic L. peruviana is an aggressive weedy species that can form dense thickets in wetland habitats (Jacobs et al 1994). Causes for the sudden expansion of L. peruviana are not clear, but it is abundant in the seedbank of some relict wetlands on the channelized floodplain, including the Pool C BLM (Arnold van der Valk, unpublished data).…”

Section: Pool C Blmmentioning

confidence: 98%

Restoration Response of Relict Broadleaf Marshes to Increased Water Depths

Toth

2010

Wetlands

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Broadleaf marsh once covered much of the wetland landscape along the Kissimmee River in central Florida, USA, but is currently restricted to remnant portions of the channelized floodplain that have been subjected to much shallower depths. The initial phase of Kissimmee River restoration, which began in 1999, and a prior (1984)(1985)(1986)(1987)(1988)(1989)(1990) demonstration project increased water depths in several relict broadleaf marshes on the floodplain. Effects of restored water depth regimes on characteristics of these altered broadleaf marsh communities were evaluated. As expected, plant species richness consistently declined in marshes with increased water depth, but cover of signature broadleaf species, Sagittaria lancifolia and Pontederia cordata, exhibited variable responses to restored hydrology. In one marsh mean cover of Sagittaria and Pontederia increased from 32 to 62% following a 37 cm increase in mean annual depths; however, in another relict marsh that underwent a similar increase in hydroperiods and depths, mean cover of these species remained below 30% and Panicum hemitomon persisted as a dominant species. Moreover, invasion of the exotic wetland shrub, Ludwigia peruviana, appears to pose a threat to successful restoration of broadleaf marshes on the Kissimmee floodplain.

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Section: Pool C Blmmentioning

confidence: 98%

Restoration Response of Relict Broadleaf Marshes to Increased Water Depths

Toth

2010

Wetlands

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“…According to some authors, L. peruviana originated in the Americas (Ramamoorthy & Zardini, 1987) and later introduced into wet areas in different regions, making it a dominant species in a short period of time and an important source of floral resources for pollinators, especially for bees (Jacobs et al, 1994).…”

mentioning

confidence: 99%

Diversity of bees and their interaction networks with Ludwigia sericea (Cambessides) H. Hara and Ludwigia peruviana (L.) H. Hara (Onagraceae) flowers in a swamp area in the Brazilian Atlantic Foresteae) flowers in Atlantic Forest Area in Southern Brazil

Gonçalves

Buschini

2017

Sociobiology

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In Southern Brazil the great diversity of bees is due to the richness of ecosystems in the region and when studies attribute the processes for identification of the floral resources used by bees we can get important steps for the elaboration of management and conservation plans of the species involved. Based on this setting and considering that the study area is a "várzea" (swamp) with a large concentration of flowers of Ludwigia sericea and Ludwigia peruviana, important sources of resources for bees, the aim of this study was to find out about the floral visitor bees and through palynological studies and interaction networks, understand the role of these plants as providers of pollengrains to bees and how the bees interact with them and other plants, also found in this habitat. Ludwigia sericea, Ludwigia peruviana and the other plant species are presented as generalist in the interactions with the bee species, and the same occurs for most of the bee species in relation to these plants. Generalist bee species (Bombus pauloensis, Apis mellifera, Augochlora amphitrite and Melissoptila paraguayensis) tend to be more abundant and more resistant to disturbances than the specialist species. It was the first time that Plebeia emerina, Centris varia, Mourella caerulea and Augochlorella ephyra were recorded on the Ludwigia flowers in Brazil. Based on the results presented in this study, these plants are important for maintaining the bee community in the region of the Atlantic Forest in Southern Brazil, because they provide resources (nectar and pollen) to bee species that only occur in this region.

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“…In other locations, different species of Ludwigia can show flowering peaks in other months: Ludwigia suffruticosa (L.) Gomez flowered in winter (June) in Minas Gerais (Martins & Antonini, 1994), while Jacobs et al (1994) observed that Ludwigia peruviana (L.) Hara, recently introduced into Sidney, Australia, had its flowering peak at the beginning of autumn.…”

Section: Ludwigia Elegansmentioning

confidence: 99%

Interaction between visiting bees (Hymenoptera, Apoidea) and flowers of Ludwigia elegans (Camb.) hara (Onagraceae) during the year in two different areas in São Paulo, Brazil

Gimenes

2003

Braz. J. Biol.

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This study was designed to characterize the interactions between Ludwigia elegans flowers and visiting bees during two years in two areas 200 km apart, at the same latitude (approximately 22º48'S) but at different altitudes (Alumínio, 600 m, and Campos do Jordão, 1500 m), in the State of São Paulo, Brazil. As these flowers open simultaneously in the morning and lose their petals by sunset, interaction with bees occurs only during the photophase. Flowers of L. elegans were mainly visited by bees, the most frequent species being: Tetraglossula anthracina (Michener, 1989) (Colletidae), Rhophitulus sp. (Andrenidae), and Pseudagapostemon spp. (Halictidae), all considered specialized bees for collecting pollen and nectar from these flowers, as well as the generalist bee Apis mellifera Linnaeus, 1758 (Apidae). The specialist bees were temporally adjusted to the opening schedule of the flower, which occurs primarily in the morning, but shows a circannual variation. T. anthracina appears in both study areas, but only between December and April. The annual activity patterns of these specialist bees are synchronized to the phenology of L. elegans. Photoperiod and temperature cycles are suggested as the main synchronizers of both bees and plants.

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Ludwigia peruviana (Onagraceae) in the Botany Wetlands near Sydney, Australia

Cited by 11 publications

References 5 publications

Restoration Response of Relict Broadleaf Marshes to Increased Water Depths

Restoration Response of Relict Broadleaf Marshes to Increased Water Depths

Diversity of bees and their interaction networks with Ludwigia sericea (Cambessides) H. Hara and Ludwigia peruviana (L.) H. Hara (Onagraceae) flowers in a swamp area in the Brazilian Atlantic Foresteae) flowers in Atlantic Forest Area in Southern Brazil

Interaction between visiting bees (Hymenoptera, Apoidea) and flowers of Ludwigia elegans (Camb.) hara (Onagraceae) during the year in two different areas in São Paulo, Brazil

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