scholarly journals Potential Range Expansion of Japanese Honeysuckle (Lonicera japonica Thunb.) in Southern U.S. Forestlands

Forests ◽  
2012 ◽  
Vol 3 (3) ◽  
pp. 573-590 ◽  
Author(s):  
Hsiao-Hsuan Wang ◽  
Carissa L. Wonkka ◽  
William E. Grant ◽  
William E. Rogers
Keyword(s):  
Range Expansion ◽  
Lonicera Japonica ◽  
Potential Range ◽  
Japanese Honeysuckle

scholarly journals Effects of Climatic Change on the Potential Distribution of Lycoriella Species (Diptera: Sciaridae) of Economic Importance

Insects ◽  
2021 ◽  
Vol 12 (9) ◽  
pp. 831
Author(s):  
Roberta Marques ◽  
Juliano Lessa Pinto Duarte ◽  
Adriane da Fonseca Duarte ◽  
Rodrigo Ferreira Krüger ◽  
Uemmerson Silva da Cunha ◽  
...  
Keyword(s):  
Climate Change ◽  
Range Expansion ◽  
Cold Climate ◽  
Future Climate Change ◽  
Economic Losses ◽  
Potential Range ◽  
Climate Change Scenarios ◽  
Ecological Niche Models ◽  
Greenhouse Production ◽  
Production Areas

Lycoriella species (Sciaridae) are responsible for significant economic losses in greenhouse production (e.g., mushrooms, strawberries, and nurseries). The current distributions of species in the genus are restricted to cold-climate countries. Three species of Lycoriella are of particular economic concern in view of their ability to invade areas in countries across the Northern Hemisphere. We used ecological niche models to determine the potential for range expansion under future climate change scenarios (RCP 4.5 and RCP 8.5) in the distribution of these three species of Lycoriella. Stable environmental suitability under climate change was a dominant theme in these species; however, potential range increases were noted in key countries (e.g., USA, Brazil, and China). Our results illustrate the potential for range expansion in these species in the Southern Hemisphere, including some of the highest greenhouse production areas in the world.

Modeling Potential Range Expansion of the Invasive Shrub Leucaena leucocephala in the Hengchun Peninsula, Taiwan

2013 ◽  
Vol 6 (4) ◽  
pp. 492-501 ◽  
Author(s):  
Chyi-Rong Chiou ◽  
Hsiao-Hsuan Wang ◽  
Yen-Jui Chen ◽  
William E. Grant ◽  
Ming-Lun Lu
Keyword(s):  
Range Expansion ◽  
Leucaena Leucocephala ◽  
Forest Edge ◽  
Boosted Regression Trees ◽  
Anthropogenic Factors ◽  
Potential Range ◽  
Invasive Shrub ◽  
Agriculture Land ◽  
Average Annual Temperature ◽  
Presence And Absence

AbstractPrediction of invasive species distributions from survey data is widely recognized as a significant component of forest management and conservation planning. Leucaena leucocephala is the most aggressive invasive shrub and tree in the Hengchun peninsula in southern Taiwan. We analyzed geo-referenced data to identify potential variables of invasion and to predict likelihood of further invasion using boosted regression trees. Our results, which classified 92% of the cells correctly with regard to species presence and absence, indicated probability of invasion is correlated with climatic conditions (temperature and precipitation), landscape features (altitude; slope ratio and aspect; percentages of natural or secondary forest, agriculture land, developed area, and water bodies; and distances to the nearest forest edge and river), and anthropogenic factors (length of forest edge, and distances to the nearest road and agriculture land). The most influential variables are average annual temperature, altitude, precipitation, and slope. Continued range expansion by L. leucocephala is most likely to proceed (1) from the eastern and western portions toward the central portion of Hengchun township and (2) throughout the southern and toward the eastern portions of Manjhou township. Our model should provide useful information to aid forest managers in the development of long term monitoring and control strategies for L. leucocephala, in the early detection and eradication of newly established invasions, and also a framework for the integration and analysis of new presence and absence field data as they become available.

Volatile Constituents from the Flowers of Japanese Honeysuckle (Lonicera japonica)

1996 ◽  
Vol 44 (1) ◽  
pp. 206-209 ◽  
Author(s):  
William S. Schlotzhauer ◽  
Sam D. Pair ◽  
Robert J. Horvat
Keyword(s):  
Lonicera Japonica ◽  
Volatile Constituents ◽  
Japanese Honeysuckle

scholarly journals Analysis of Flower Color Variations at Different Developmental Stages in Two Honeysuckle (Lonicera Japonica Thunb.) Cultivars

HortScience ◽  
2019 ◽  
Vol 54 (5) ◽  
pp. 779-782 ◽  
Author(s):  
Jianjun Li ◽  
Xiaoya Lian ◽  
Chenglin Ye ◽  
Lan Wang
Keyword(s):  
Chlorophyll Content ◽  
Cross Section ◽  
Molecular Mechanisms ◽  
Developmental Stages ◽  
Flower Color ◽  
Lonicera Japonica ◽  
Carotenoid Content ◽  
Factors Affecting ◽  
Japanese Honeysuckle ◽  
Corolla Color

Lonicera japonica Thunb., known as Japanese honeysuckle or golden-and-silver honeysuckle, belongs to the honeysuckle family and is native to eastern Asia, including China, Japan, and Korea. Microscopy, spectrophotometry, colorimetry, and the Royal Horticulture Society of Colorimetric Card (RHSCC) were used to compare and analyze the pigment distribution, content, and color variations in the Yujin 2 and Damaohua cultivars at different developmental stages. There were notable differences in the corolla color and the cross-section color between different developmental stages and different varieties. The lightness (L*), redness (a*), and yellowness (b*) values were calculated for each period for the two cultivars to observe variation trends. The chlorophyll content in the corollas of both cultivars showed declining trends with different rates. The chlorophyll content decreased rapidly from the young period to the two white period, and changed gradually from the two white period to the golden period. Moreover, the carotenoid content declined slightly from the young period to the silver period and rose sharply during the golden period. The ratio of these two pigment contents increased dramatically during the golden period: by 11.51 and 6.53 times in ‘Yujin 2’ and ‘Damaohua’, respectively. There were significant differences in corolla color, cross-section color, and the content of three pigments between the two varieties of honeysuckle. distribution and variation of pigments were the key factors affecting the flower color of honeysuckle. This study provides a basis for the identification and breeding of honeysuckle varieties and lays a foundation for further studies on the function and molecular mechanisms of pigments.

scholarly journals Modelling potential range expansion of an underutilised food security crop in Sub-Saharan Africa

2021 ◽  
Author(s):  
Olef Koch ◽  
Wendawek Abebe Mengesha ◽  
Samuel Pironon ◽  
Pagella Tim ◽  
Ian Ondo ◽  
...  
Keyword(s):  
Food Security ◽  
Range Expansion ◽  
Lake Victoria ◽  
Sub Saharan Africa ◽  
Eastern Africa ◽  
Small Scale ◽  
Potential Range ◽  
Niche Modelling ◽  
Ethical Implications ◽  
Sub Saharan

Abstract Despite substantial growth in global agricultural production, food and nutritional insecurity is rising in Sub-Saharan Africa. Identification of underutilised indigenous crops with useful food security traits may provide part of the solution. Enset (Ensete ventricosum) is a perennial banana relative with cultivation restricted to southwestern Ethiopia, where high productivity and harvest flexibility enables it to provide a starch staple for ~20 million people. An extensive wild distribution suggests that a much larger region may be climatically suitable for cultivation. Here we use ensemble ecological niche modelling to predict the potential range for enset cultivation within southern and eastern Africa. We find contemporary bioclimatic suitability for a 12-fold range expansion, equating to 21.9% of crop land and 28.4% of the population in the region. Integration of crop wild relative diversity, which has broader climate tolerance, could enable a 19-fold expansion, particularly to dryer and warmer regions. Whilst climate change may cause a 37% – 52% reduction in potential range by 2070, large centres of suitability remain in the Ethiopian Highlands, Lake Victoria region and the Drakensberg Range. We combine our bioclimatic assessment with socioeconomic data to identify priority areas with high population density, seasonal food deficits and predominantly small-scale subsistence agriculture, where integrating enset may be particularly feasible and deliver climate resilience. When incorporating the genetic potential of wild populations, enset cultivation might prove feasible for an additional 87.2 - 111.5 million people, 27.7 – 33 million of which are in Ethiopia outside of enset’s current cultivation range. Finally, we consider explanations why enset cultivation has not expanded historically, and ethical implications of expanding previously underutilised species.

scholarly journals How the South was won: current and potential range expansion of the crested porcupine in Southern Italy

2020 ◽  
Author(s):  
Emiliano Mori ◽  
Gentile Francesco Ficetola ◽  
Remo Bartolomei ◽  
Giovanni Capobianco ◽  
Paolo Varuzza ◽  
...  
Keyword(s):  
Range Expansion ◽  
Southern Italy ◽  
Potential Range ◽  
The South ◽  
Crested Porcupine

scholarly journals Bioclimatic Modelling Identifies Suitable Habitat for the Establishment of the Invasive European Paper Wasp (Hymenoptera: Vespidae) across the Southern Hemisphere

Insects ◽  
2020 ◽  
Vol 11 (11) ◽  
pp. 784
Author(s):  
Matthew W. F. Howse ◽  
John Haywood ◽  
Philip J. Lester
Keyword(s):  
South Africa ◽  
New Zealand ◽  
South America ◽  
Southern Hemisphere ◽  
Range Expansion ◽  
Paper Wasp ◽  
Potential Range ◽  
Suitable Habitat ◽  
Climate Data ◽  
Distribution Models

Species distribution models (SDMs) are tools used by ecologists to help predict the spread of invasive species. Information provided by these models can help direct conservation and biosecurity efforts by highlighting areas likely to contain species of interest. In this study, two models were created to investigate the potential range expansion of Polistes dominula Christ (Hymenoptera: Vespidae) in the southern hemisphere. This palearctic species has spread to invade North and South America, South Africa, Australia, and more recently New Zealand. Using the BIOCLIM and MAXENT modelling methods, regions that were suitable for P. dominula were identified based on climate data across four regions in the southern hemisphere. In South America areas of central Chile, eastern Argentina, parts of Uruguay, and southern Brazil were identified as climatically suitable for the establishment of P. dominula. Similarly, southern parts of South Africa and Australia were identified by the model to be suitable as well as much of the North Island and east of the South Island of New Zealand. Based on outputs from both models, significant range expansion by P. dominula is possible across its more southern invaded ranges.

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