HIGH DISPERSAL CAPACITY OF CLADOCERAN ZOOPLANKTON IN NEWLY FOUNDED COMMUNITIES

Ecology ◽  
2005 ◽  
Vol 86 (2) ◽  
pp. 353-359 ◽  
Author(s):  
Gerald Louette ◽  
Luc De Meester
Keyword(s):  
Dispersal Capacity ◽  
High Dispersal ◽  
Cladoceran Zooplankton

Desmodium cajanifolium (tropical tick trefoil).

2020 ◽  
Author(s):  
Jeanine Vélez-Gavilán
Keyword(s):  
At Risk ◽  
Invasive Species ◽  
Pacific Islands ◽  
Dispersal Capacity ◽  
Secondary Vegetation ◽  
High Dispersal ◽  
Perennial Shrub ◽  
Weedy Species ◽  
Open Forests

Abstract Desmodium cajanifolium is a perennial shrub considered as invasive in Hawaii, USA, by Frohlich and Lau (2012), who reported it as a weedy species naturalised along roadsides, open forests and secondary vegetation on the Big Island and Kaua'i. At the same time, Benitez et al. (2012) report D. cajanifolium as a species that is rarely found along roadsides and in forests in Hawaii. D. cajanifolium is not listed as an invasive species on Pacific Islands Ecosystems at Risk (PIER, 2020). No details about its effects over other species or habitats are given.Desmodium cajanifolium is listed as potentially invasive in Cuba, being classified as a species with a tendency to proliferate in some areas and producing vast amounts of diaspores with a high dispersal capacity (Oviedo Prieto et al., 2012). It is considered as uncommon in parts of its native distribution (Flora of Nicaragua, 2020) and as scattered throughout its range (Flora of Panama, 2020).

scholarly journals Biology, Ecology, and Management of Erthesina fullo (Hemiptera: Pentatomidae): A Review

Insects ◽  
2020 ◽  
Vol 11 (6) ◽  
pp. 346 ◽  
Author(s):  
Qianqian Mi ◽  
Jinping Zhang ◽  
Elaine Gould ◽  
Juhong Chen ◽  
Zhitan Sun ◽  
...  
Keyword(s):  
Life History ◽  
Host Range ◽  
Insect Pests ◽  
Chinese Literature ◽  
Close Association ◽  
Surveillance Program ◽  
Stink Bug ◽  
Native Range ◽  
Dispersal Capacity ◽  
High Dispersal

The yellow spotted stink bug (YSSB), Erthesina fullo Thunberg, is one of the most widely distributed phytophagous insect pests in Asia. YSSB is highly polyphagous and in China it feeds on over 57 host plants in 29 families, including some economically important fruit crops such as kiwifruit, pear, peach, apple, and pomegranate. With a primarily r-selected life history strategy, reproductive diapause, aggregation behavior, wide host range, high dispersal capacity, and close association with human-modified ecosystems, YSSB is a potentially invasive species that poses significant biosecurity threats to other countries outside its native range. This review summarizes basic and applied knowledge on the biology, ecology, and management of YSSB in China, with specific emphasis on its life history, host range, damage and impacts on economically important horticulture crops, and integrated pest management (IPM) approaches. The insights from the Chinese literature on this pest will help the countries outside its native range to conduct appropriate biosecurity risk assessments, develop a sound surveillance program, and develop an emergency response plan before its invasion of new geographic areas.

Effects of habitat fragmentation on the genetic diversity and differentiation of Dendrolimus punctatus (Lepidoptera: Lasiocampidae) in Thousand Island Lake, China, based on mitochondrial COI gene sequences

2018 ◽  
Vol 109 (1) ◽  
pp. 62-71 ◽  
Author(s):  
K. Lv ◽  
J.-R. Wang ◽  
T.-Q. Li ◽  
J. Zhou ◽  
J.-Q. Gu ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Habitat Fragmentation ◽  
Geographic Distance ◽  
Haplotype Diversity ◽  
Shape Index ◽  
Coi Gene ◽  
Fragmented Landscape ◽  
Dispersal Capacity ◽  
Island Populations ◽  
High Dispersal

AbstractThousand Island Lake (TIL) is a typical fragmented landscape and an ideal model to study ecological effects of fragmentation. Partial fragments of the mitochondrial cytochrome oxidase subunit I gene of 23 island populations of Dendrolimus punctatus in TIL were sequenced, 141 haplotypes being identified. The number of haplotypes increased significantly with the increase in island area and shape index, whereas no significant correlation was detected between three island attributes (area, shape and isolation) and haplotype diversity. However, the correlation with number of haplotypes was no longer significant when the ‘outlier’ island JSD (the largest island) was not included. Additionally, we found no significant relationship between geographic distance and genetic distance. Geographic isolation did not obstruct the gene flow among D. punctatus populations, which might be because of the high dispersal capacity of this pine moth. Fragmentation resulted in the conversion of large and continuous habitats into isolated, small and insular patches, which was the primary effect on the genetic diversity of D. punctatus in TIL. The conclusion to emphasize from our research is that habitat fragmentation reduced the biological genetic diversity to some extent, further demonstrating the importance of habitat continuity in biodiversity protection.

scholarly journals Characterization of Plastidial and Nuclear SSR Markers for Understanding Invasion Histories and Genetic Diversity of Schinus molle L.

Biology ◽  
2018 ◽  
Vol 7 (3) ◽  
pp. 43 ◽  
Author(s):  
Rafael Lemos ◽  
Cristiane Matielo ◽  
Dalvan Beise ◽  
Vanessa da Rosa ◽  
Deise Sarzi ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Invasive Plant ◽  
Whole Genome Sequencing Data ◽  
Natural Occurrence ◽  
Sequencing Data ◽  
Dispersal Capacity ◽  
Schinus Molle ◽  
High Dispersal ◽  
History Of

Invasive plant species are expected to display high dispersal capacity but low levels of genetic diversity due to the founder effect occurring at each invasion episode. Understanding the history of invasions and the levels of genetic diversity of such species is an important task for planning management and monitoring strategy for these events. Peruvian Peppertree (Schinus molle L.) is a pioneer tree species native from South America which was introduced in North America, Europe and Africa, becoming a threat to these non-native habitats. In this study, we report the discovery and characterization of 17 plastidial (ptSSR) and seven nuclear (nSSR) markers for S. molle based on low-coverage whole-genome sequencing data acquired through next-generation sequencing. The markers were tested in 56 individuals from two natural populations sampled in the Brazilian Caatinga and Pampa biomes. All loci are moderately to highly polymorphic and revealed to be suitable for genetic monitoring of new invasions, for understanding the history of old invasions, as well as for genetic studies of native populations in their natural occurrence range and of orchards established with commercial purposes.

scholarly journals Simple rules to contain an invasive species with a complex life cycle and high dispersal capacity

2012 ◽  
Vol 49 (1) ◽  
pp. 52-62 ◽  
Author(s):  
Jean-Baptiste Pichancourt ◽  
Iadine Chadès ◽  
Jennifer Firn ◽  
Rieks D. van Klinken ◽  
Tara G. Martin
Keyword(s):  
Invasive Species ◽  
Life Cycle ◽  
Complex Life Cycle ◽  
Dispersal Capacity ◽  
High Dispersal ◽  
Simple Rules

scholarly journals Cavanillesia platanifolia (cuipo).

2020 ◽  
Author(s):  
Jeanine Vélez-Gavilán
Keyword(s):  
Invasive Species ◽  
Puerto Rico ◽  
Deciduous Tree ◽  
Dispersal Capacity ◽  
High Dispersal ◽  
Near Threatened

Abstract Cavanillesia platanifolia is a deciduous tree native to the Americas from Nicaragua to Peru, that has been introduced in Puerto Rico and Cuba. It is not listed as invasive in any country, although it is considered as potentially invasive species in Cuba, being categorised as a naturalized species with a tendency to proliferate at some localities, with a high diaspore production and high dispersal capacity. Due to its habitat being reduced by urbanisation and agriculture in its native distribution the species is Near Threatened, and is Endangered in Colombia.

scholarly journals The Ecological Niche of bat Viruses Closely Related to SARS-CoV-2, as Inferred from Phylogeographic Analyses of Rhinolophus Species

2021 ◽  
Author(s):  
Alexandre HASSANIN ◽  
Vuong Tan Tu ◽  
Manon Curaudeau ◽  
Gabor Csorba
Keyword(s):  
Southeast Asia ◽  
Ecological Niche ◽  
Transitional Zone ◽  
Ecological Niches ◽  
Human Populations ◽  
Dispersal Capacity ◽  
Recombinant Viruses ◽  
Haplotype Networks ◽  
High Dispersal ◽  
Genomic Recombination

Abstract To date, viruses closely related to SARS-CoV-2 have been reported in four bat species: Rhinolophus acuminatus, Rhinolophus affinis, Rhinolophus malayanus, and Rhinolophus shameli. Here, we analysed 343 sequences of the mitochondrial cytochrome c oxidase subunit 1 gene (CO1) from georeferenced bats of the four Rhinolophus species identified as reservoirs of viruses closely related to SARS-CoV-2. Haplotype networks were constructed in order to investigate patterns of genetic diversity among bat populations of Southeast Asia and China. No strong geographic structure was found for the four Rhinolophus species, suggesting high dispersal capacity. The ecological niche of bat viruses closely related to SARS-CoV-2 was predicted using the four localities in which bat viruses were recently discovered and the localities where bats showed the same CO1 haplotypes than virus-positive bats. The ecological niche of bat viruses related to SARS-CoV was deduced from the localities where bat viruses were previously detected. The results show that the ecological niche of bat viruses related to SARS-CoV2 includes several regions of mainland Southeast Asia whereas that of bat viruses related to SARS-CoV is mainly restricted to China. In agreement with these results, human populations in Laos, Vietnam, Cambodia, and Thailand appear to be much less affected by the Covid-19 pandemic than other countries of Southeast Asia. In the climatic transitional zone between the two ecological niches (southern Yunnan, northern Laos, northern Vietnam), genomic recombination between highly divergent viruses is more likely to occur. Since recombinant viruses can threaten the benefit of vaccination campaigns, these regions should be under surveillance.

scholarly journals Limited Genetic Connectivity Among Sargassum horneri (Phaeophyceae) Populations in the Chinese Marginal Seas Despite Their high Dispersal Capacity

2020 ◽  
Vol 56 (4) ◽  
pp. 994-1005 ◽  
Author(s):  
Jing‐Jing Li ◽  
Zheng‐Yi Liu ◽  
Zhi‐Hai Zhong ◽  
Long‐Chuan Zhuang ◽  
Yuan‐Xin Bi ◽  
...  
Keyword(s):  
Sargassum Horneri ◽  
Genetic Connectivity ◽  
Dispersal Capacity ◽  
Marginal Seas ◽  
High Dispersal ◽  
Chinese Marginal Seas

scholarly journals High dispersal capacity and biogeographic breaks shape the genetic diversity of a globally distributed reef‐dwelling calcifier

2020 ◽  
Vol 10 (12) ◽  
pp. 5976-5989 ◽  
Author(s):  
Martina Prazeres ◽  
Raphaël Morard ◽  
T. Edward Roberts ◽  
Steve S. Doo ◽  
Jamaluddin Jompa ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Dispersal Capacity ◽  
High Dispersal ◽  
Globally Distributed

scholarly journals The orthopterans of the rice agroecosystem in western Lomellina (Lombardy, Italy)

2018 ◽  
Vol 6 ◽  
pp. e24203 ◽  
Author(s):  
Davide Giuliano ◽  
Giuseppe Bogliani
Keyword(s):  
Environmental Changes ◽  
Rice Fields ◽  
Suitable Habitat ◽  
Natural Habitats ◽  
Dispersal Capacity ◽  
Habitat Specificity ◽  
High Dispersal ◽  
Surrogate Habitat ◽  
Taxonomic Groups ◽  
Habitat Specialist Species

Rice fields represent a valuable surrogate habitat for many wetland species, playing an important role for biodiversity conservation in human-managed landscapes. Despite the fact that several taxonomic groups have been thoroughly investigated in this agroecosystem, little is known about the orthopteran fauna which lives in and around rice paddies, especially in Europe. In this paper, we provide a first description of the orthopteran assemblages hosted in the rice agroecosystems of northern Italy, trying to evaluate their conservation value through an analysis of species ecological traits (habitat specificity and dispersal capacity). During field samplings in summer 2016, we detected 25 orthopteran species. The 24% of the community was composed by habitat specialist species and the 56% of the sampled taxa was characterised by high dispersal capacities. Rice fields are an extremely dynamic ecosystem, characterised by the continuous succession of flooding and drying periods and conditioned by many other farming activities. Consequently, the orthopteran fauna in rice crops is mainly composed of species well adapted to sudden environmental changes. On the other hand, rice fields represent a particular biotope, providing a suitable habitat especially for hygrophilous species, which are otherwise restricted to scattered marsh areas. In order to preserve orthopteran diversity in rice agroecosystems, sustainable farming practices should be applied, especially by preserving and restoring marginal semi-natural habitats, by reducing grass management intensity on paddy banks and by discouraging rice cultivation in dry soils.

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