scholarly journals Angiopteris evecta (king fern).

2020 ◽  
Author(s):  
Julissa Rojas-Sandoval
Keyword(s):  
Invasive Species ◽  
Costa Rica ◽  
Natural Ecosystems ◽  
Botanical Gardens

Abstract Angiopteris evecta is often cultivated as an ornamental in gardens, parks, and botanical gardens for its large rhizomes and gigantic fronds. It has repeatedly escaped from cultivation and has the potential to easily colonize new ecosystems. It is currently listed as invasive in Hawaii, Jamaica and Costa Rica where it can be found naturalized and spreading mostly in wet valleys and on slopes in montane and lowland rainforests. In Cuba it is considered an invasive species with the potential to "transform" natural ecosystems.

Cecropia peltata (trumpet tree).

2021 ◽  
Author(s):  
Nick Pasiecznik
Keyword(s):  
Invasive Species ◽  
Pioneer Species ◽  
Native Range ◽  
Coffee Plantations ◽  
Shade Tree ◽  
Botanical Gardens ◽  
Forest Clearance

Abstract C. peltata is an important pioneer species in its native range Americas following forest clearance. It has also been introduced into coffee plantations as a shade tree and into botanical gardens in Africa. However, its presence on the ISSG list of the 100 worst invasive species (ISSG, 2003) means that its notoriety as an invasive species may limit further introductions.

What pollinatesLantana camarain the mountains of Costa Rica?

2012 ◽  
Vol 28 (3) ◽  
pp. 313-315
Author(s):  
Christopher A. Hamm
Keyword(s):  
Invasive Species ◽  
Costa Rica ◽  
Soil Nitrogen ◽  
Native Plants ◽  
Pollination Ecology ◽  
Lantana Camara ◽  
Disturbed Habitat

Lantana camaraL. (Verbenaceae) is a shrub of Neotropical origin that has spread to at least 60 countries (Dayet al. 2003), and its ability to rapidly occupy disturbed habitat has led to it being named one of the ten worst weeds on the planet (Cronk & Fuller 1995, Sharmaet al. 2005). A number of traits may have contributed to its success as an invasive species. For example,L. camaraincreases the available soil nitrogen in otherwise nitrogen-poor ecosystems (Sharma & Raghubanshi 2009), it is extremely resilient to disturbance (Gentle & Guggin 1997a, Hiremath & Sundram 2005), it is allelopathic to native plants (Achhireddy & Singh 1984, Gentle & Duggin 1997b) and its fruits are dispersed by a variety of birds (Mandon-Dalgeret al. 2004, Swarbricket al. 1998). A potentially unappreciated aspect ofL. camarabiology that may also contribute to its invasiveness relates to pollination ecology.

scholarly journals Digitaria eriantha (pangola grass).

2020 ◽  
Author(s):  
Jeanine Vélez-Gavilán
Keyword(s):  
Invasive Species ◽  
Costa Rica ◽  
South America ◽  
Central America ◽  
Perennial Grass ◽  
Riparian Areas ◽  
Digitaria Eriantha ◽  
The Caribbean ◽  
Tropical Forages ◽  
Viable Seeds

Abstract D. eriantha is a perennial grass not considered as a serious weed in some countries, but a competitive and aggressive weed in others (PROTA, 2016; Tropical Forages, 2016; Weeds of Australia, 2016). The species is listed as invasive in Central America (Costa Rica), the Caribbean (Cuba), South America (Colombia, Ecuador) and Oceania (Australia, USA-Hawaii) (Oviedo Prieto et al., 2012; PIER, 2016). Catasús Guerra (2015), however, argues that the species should not be on the list of the invasive species for Cuba, due to lack of spread as it is being over-grazed and not producing viable seeds. It is on the list of the top 200 most invasive species in Queensland, Australia, forming dense populations in riparian areas, open woodlands and on some beaches (Weeds of Australia, 2016).

scholarly journals Alocasia cucullata (Chinese taro).

2020 ◽  
Author(s):  
Julissa Rojas-Sandoval
Keyword(s):  
Invasive Species ◽  
Costa Rica ◽  
French Polynesia ◽  
Food Plant ◽  
Distribution Range ◽  
Herbaceous Plant ◽  
Cook Islands ◽  
Temperate Asia ◽  
Alocasia Cucullata ◽  
Root Suckers

Abstract Alocasia cucullata is a clumping evergreen herbaceous plant that is grown as a food plant and as an ornamental in areas within and outside its native distribution range of tropical and temperate Asia. This species spreads by seed and vegetatively by root suckers, rhizomes and corm fragments. It is listed as invasive in Cuba, Costa Rica, Hawaii, Fiji, the Cook Islands, Micronesia and French Polynesia. It is also listed in the Global Compendium of Weeds. A. cucullata is considered an invasive species with the potential to colonize and become naturalized in the understorey of rainforests and moist areas along streams and riverbanks.

scholarly journals Compatibility of indigenous isolates HR1, HR2 of entomopathogenic nematodes, with low-toxicity insecticides for control of fall armyworm, Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) and tomato leafminer, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae)

2022 ◽  
Author(s):  
Indra Kumar Kasi ◽  
Mohinder Singh ◽  
Kanchhi Maya Waiba
Keyword(s):  
Invasive Species ◽  
Spodoptera Frugiperda ◽  
Entomopathogenic Nematodes ◽  
Fall Armyworm ◽  
Steinernema Feltiae ◽  
High Dose ◽  
Natural Ecosystems ◽  
Percent Mortality ◽  
Low Toxicity ◽  
Lepidoptera Noctuidae

Abstract Invasive species are a major danger to agronomic and natural ecosystems, and due to environmental concerns about pesticide use, EPNs have the potential to replace larvicidal action in pest management. The goal was to see how well local isolates of Steinernema feltiae (HR1) and Heterorhabditis bacteriophora (HR2) controlled invasive species when combined with low-toxicity pesticides. HR1 + Spinosad, chlorantraniliprole produced over 90% mortality in larvae at 96 hours, while HR2 + Spinosad, chlorantraniliprole caused over 95% mortality at 96 hours. After treatment, the high dose was regarded the least hazardous technique for controlling fall armyworm. At the high dose, HR1 + Spinosad, chlorantraniliprole produced larvae death of over 100 percent at 96 hours, and HR2 + Spinosad, chlorantraniliprole caused mortality of over 97.50 percent at 96 hours, and should be considered as a least hazardous strategy for T. absoluta management. Controlling larvae mortality of above 100% at 96 hours in combination with low-toxicity insecticide dosages should be included as a least harmful technique to control T. absoluta. The results showed that these HR2 strains have high pathogenicity against T. absoluta and S. frugiperda and have potential for control in integrated approaches, causing 100 percent and 90.00 percent mortality of T. absoluta and S. frugiperda at 96 hours at the high dose as a least toxic strategy to control.

scholarly journals DPSIR Framework – A Decision – Making Tool for Municipalities

2016 ◽  
Vol 24 (4) ◽  
pp. 45-50 ◽  
Author(s):  
M. Majorošová
Keyword(s):  
Decision Making ◽  
Invasive Species ◽  
Native Species ◽  
Impact Response ◽  
Natural Ecosystems ◽  
Fallopia Japonica ◽  
Dpsir Framework ◽  
Pressure State ◽  
Decision Making Tool ◽  
Riverbank Vegetation

AbstractMany municipalities in Central Europe deal with the problem of invasive species in their natural ecosystems. Invasive vegetation eradicates native species and causes dense stands that damage the natural environment. This work shows how important it is to have an informative tool for municipalities to be successful in their struggles with invasive species. A Driver – Pressure – State – Impact - Response (DPSIR) framework is a decision - making tool, and this one is particularly applied to the species Fallopia japonica. Fallopia japonica is an extremely invasive and aggressive weed, and it is very often found in riverbank vegetation. This specific framework can be used as a tool for municipal managers to highlight all the problems with Fallopia japonica and define all the responses that should be provided by the municipalities. The work points out the steps that show how important it is to have a strategy or a clear concept of how to begin with such a serious issue as the presence of Fallopia japonica in riverbank vegetation and its eradication. This framework provides simple steps that cannot be excluded when a municipality start actions against Fallopia japonica. All the indicators used in the model are based on the information known about Fallopia japonica that are presented in the literature.

Thelypteris opulenta (jewelled maiden fern).

2020 ◽  
Author(s):  
Julissa Rojas-Sandoval
Keyword(s):  
Invasive Species ◽  
Costa Rica ◽  
South America ◽  
Secondary Forests ◽  
Tropical Asia ◽  
Cocos Island ◽  
Garden Waste

Abstract Thelypteris opulenta is a perennial fern, native to tropical Asia and Madagascar, that has been introduced as an ornamental to gardens and amenity areas. It produces numerous spores that are easily dispersed by wind and water. It also spreads via rhizomes, stolons and tubers, which are often dispersed to new areas in dumped garden waste. T. opulenta is known to have escaped from cultivation and grows as a weed in disturbed sites, secondary forests and along roadsides and trails. It is listed as a common weed in moist and wet habitats in Central and South America and has been listed as an invasive species in Peru, Costa Rica (Cocos Island) and Cuba.

scholarly journals Gomphrena globosa (globe amaranth).

2020 ◽  
Author(s):  
Eduardo Ventosa-Febles
Keyword(s):  
Invasive Species ◽  
Costa Rica ◽  
Traditional Medicine ◽  
Central America ◽  
Invasive Plant ◽  
Gomphrena Globosa ◽  
Cosmetic Industry ◽  
Annual Herb

Abstract Gomphrena globosa is an annual herb native to Central America now cultivated worldwide as an ornamental, as well as having uses in traditional medicine and as a source of betacyanins for use in the food and cosmetic industry. It has escaped cultivation in gardens and is now found waste grounds and disturbed sites in tropical and subtropical countries. It is listed as an invasive species by CeNBIO, and classified as an invasive plant in Cuba, Hawaii and Costa Rica.

scholarly journals Environmental Monitoring Supported by Aerial Photography – a Case Study of the Burnt Down Bugac Juniper Forest, Hungary

2016 ◽  
Vol 9 (1-2) ◽  
pp. 31-38 ◽  
Author(s):  
József Szatmári ◽  
Zalán Tobak ◽  
Zsolt Novák
Keyword(s):  
Remote Sensing ◽  
Invasive Species ◽  
Aerial Photography ◽  
Aerial Photographs ◽  
Natural Ecosystems ◽  
Burnt Area ◽  
Automatic Methods ◽  
Gis Methods ◽  
One Year ◽  
Agricultural Areas

Abstract Wildfire poses a serious risk in several regions of the world threatening urban, agricultural areas and natural ecosystems as well. Nature conservation has important role to be prepared for the management of postfire environmental degradation and restoration for protected areas preserving valuable ecosystems. The improving temporal and spatial resolution of remote sensing and GIS methods significantly contributes to map the changes for accelerating management steps of restoration. In this study a severe wildfire and its impacts were assessed in case of a protected area of the Kiskunság National Park in Hungary, which was partly burnt down in 2012. The aim of this research was to efficiently and accurately assess the damages and to plan and execute the restoration works using remote sensing tools. Aerial data collection was performed one month, and one year after the fire. In 2014 the regenerated vegetation was surveyed and mapped in the field. Using the aerial photographs and the field data, the degree and extent of the fire damages, the types and the state of the vegetation and the presence and proportion of the invasive species were determined. Semi-automatic methods were used for the classification of completely, partially damaged and undamaged areas. Based on the results, the reforestation of the burnt area is suggested to prevent the overspreading of white poplar against common junipers and to clean the area from the most frequent invasive species. To monitor the regeneration of the vegetation and the spreading of the invasive species, further aerial photography and field campaigns are planned.

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