scholarly journals The Long-Term Effects of Reduced Competitive Ability on Foraging Success of an Invasive Pest Species

2016 ◽  
Vol 109 (4) ◽  
pp. 1628-1635
Author(s):  
Fabian Ludwig Westermann ◽  
Vaughn Antony Bell ◽  
David Maxwell Suckling ◽  
Philip John Lester
Keyword(s):  
Competitive Ability ◽  
Invasive Pest ◽  
Pest Species ◽  
Foraging Success ◽  
Long Term Effects ◽  
Invasive Pest Species

Westward Palaearctic range expansion of Papilio demoleus Linnaeus, 1758 (Lepidoptera: Papilionidae) and its arrival at Mediterranean coastal regions of Turkey and Syria

2020 ◽  
Vol 71 (4) ◽  
pp. 257-272
Author(s):  
Onat Başbay ◽  
Mudar Salimeh ◽  
Eddie John
Keyword(s):  
Eastern Mediterranean ◽  
Economic Importance ◽  
Invasive Pest ◽  
Pest Species ◽  
Coastal Regions ◽  
The North ◽  
North Eastern ◽  
The World ◽  
Invasive Pest Species ◽  
Papilio Demoleus

We review the continuing and extensive spread of Papilio demoleus in south-eastern Turkey and in regions of Turkey and Syria adjacent to the north-eastern Mediterranean. Since the authors documented the arrival of this attractive but potentially destructive papilionid species at coastal areas of Syria in 2019, regular monitoring has confirmed successful overwintering there, as well as in Turkey. As previously indicated, P. demoleus is widely recognized as an invasive pest species in Citrus-growing areas of the world and hence its arrival is of potential economic importance to a region in which citrus is widely grown.

scholarly journals Highly variable COI haplotype diversity between three species of invasive pest fruit fly reflects remarkably incongruent demographic histories

2019 ◽  
Author(s):  
Camiel Doorenweerd ◽  
Michael San Jose ◽  
Norman Barr ◽  
Luc Leblanc ◽  
Daniel Rubinoff
Keyword(s):  
Haplotype Diversity ◽  
Fruit Fly ◽  
Coi Gene ◽  
Invasive Pest ◽  
Pest Species ◽  
Invasion Pathways ◽  
Geographic Ranges ◽  
Bactrocera Correcta ◽  
Invasive Pest Species ◽  
Source Populations

AbstractDistance decay principles predict that species with larger geographic ranges would have greater intraspecific genetic diversity than more restricted species. However, invasive pest species may not follow this prediction, with confounding implications for tracking phenomena including original ranges, invasion pathways and source populations. We sequenced an 815 base-pair section of the COI gene for 441 specimens of Bactrocera correcta, 214 B. zonata and 372 Zeugodacus cucurbitae; three invasive pest fruit fly species with overlapping hostplants. For each species, we explored how many individuals would need to be included in a study to sample the majority of their haplotype diversity. We also tested for phylogeographic signal and used demographic estimators as a proxy for invasion potency. We find contrasting patterns of haplotype diversity amongst the species, where B. zonata has the highest diversity but most haplotypes were represented by singletons; B. correcta has ∼7 dominant haplotypes more evenly distributed; Z. cucurbitae has a single dominant haplotype with closely related singletons in a ‘star-shape’ surrounding it. We discuss how these differing patterns relate to their invasion histories. None of the species showed meaningful phylogeographic patterns, possibly due to gene-flow between areas across their distributions, obscuring or eliminating substructuring.

scholarly journals Emergent and Possible Invasive Pest Species of Weevils in Mexico

2019 ◽  
Vol 102 (3) ◽  
pp. 480
Author(s):  
Robert W. Jones ◽  
Carlos Illescas-Riquelme ◽  
Víctor López-Martínez ◽  
Néstor Bautista-Martínez ◽  
Charles W. O'Brien
Keyword(s):  
Invasive Pest ◽  
Pest Species ◽  
Invasive Pest Species

scholarly journals Uncovering the microbiome of invasive sympatric European brown hares and European rabbits in Australia

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e9564
Author(s):  
Somasundhari Shanmuganandam ◽  
Yiheng Hu ◽  
Tanja Strive ◽  
Benjamin Schwessinger ◽  
Robyn N. Hall
Keyword(s):  
Lepus Europaeus ◽  
Invasive Pest ◽  
Pest Species ◽  
Gastrointestinal Microbiota ◽  
European Hare ◽  
Microbiome Composition ◽  
Invasive Pest Species ◽  
European Rabbits ◽  
Sequencing Platforms ◽  
Faecal Microbiome

Background European brown hares (Lepus europaeus) and European rabbits (Oryctolagus cuniculus) are invasive pest species in Australia, with rabbits having a substantially larger environmental impact than hares. As their spatial distribution in Australia partially overlaps, we conducted a comparative microbiome study to determine how the composition of gastrointestinal microbiota varies between these species, since this may indicate species differences in diet, physiology, and other internal and external factors. Methods We analysed the faecal microbiome of nine wild hares and twelve wild rabbits from a sympatric periurban reserve in Canberra, Australia, using a 16S rRNA amplicon-based sequencing approach. Additionally, we compared the concordance between results from Illumina and Nanopore sequencing platforms. Results We identified significantly more variation in faecal microbiome composition between individual rabbits compared to hares, despite both species occupying a similar habitat. The faecal microbiome in both species was dominated by the phyla Firmicutes and Bacteroidetes, typical of many vertebrates. Many phyla, including Actinobacteria, Proteobacteria and Patescibacteria, were shared between rabbits and hares. In contrast, bacteria from phylum Verrucomicrobia were present only in rabbits, while phyla Lentisphaerae and Synergistetes were represented only in hares. We did not identify phylum Spirochaetes in Australian hares; this phylum was previously shown to be present at high relative abundance in European hare faecal samples. These differences in the composition of faecal microbiota may be indicative of less discriminate foraging behaviour in rabbits, which in turn may enable them to adapt quicker to new environments, and may reflect the severe environmental impacts that this species has in Australia.

scholarly journals The Maximum Pest Limit Concept Explained

2003 ◽  
Vol 4 (1) ◽  
pp. 19
Author(s):  
Gareth Hughes
Keyword(s):  
Sample Size ◽  
Treatment Efficacy ◽  
Practical Method ◽  
Invasive Pest ◽  
Pest Species ◽  
Security Measures ◽  
Limit Concept ◽  
Regulatory Authorities ◽  
Upper Limit ◽  
Invasive Pest Species

The maximum pest limit (MPL) concept was developed as a practical method of implementing quarantine security measures against the import of invasive pest species of plants. The MPL itself is simply a threshold upper limit, above which the pest species in question is deemed capable of establishing a population if imported in a consignment of fruit or vegetables. This limit depends on various biological and ecological characteristics of the pest species in question. Important aspects of implementation relate to how treatment and sampling may be combined to reduce the probability that the MPL will be exceeded. If a specified level of treatment efficacy is required (for example, probit nine level), then choice of an appropriate sample size becomes the main problem for regulatory authorities seeking to maintain quarantine security. Accepted for publication 16 December 2002. Published 13 November 2003.

Does Brood Size Manipulation Affect Later Competitive Behaviour of Offspring?

Behaviour ◽  
1997 ◽  
Vol 134 (3-4) ◽  
pp. 161-172 ◽  
Author(s):  
C.H. De Kogel
Keyword(s):  
Brood Size ◽  
Competitive Ability ◽  
Field Experiments ◽  
Food Competition ◽  
The Other ◽  
Long Term Effects ◽  
Significant Difference ◽  
Competitive Behaviour

AbstractData from several field experiments support the existence of a trade-off between number and quality of offspring. However, long term effects of brood size on fitness related traits of offspring have been a relatively neglected area of research. In a laboratory experiment the effect of manipulated brood size on subsequent competitive ability of adult offspring was investigated. Zebra finches, Taeniopygia guttata, were reared in small or large broods and young were exchanged in such a way that natural siblings from different rearing conditions could be compared. Competitive behaviour was assessed in two different contexts: competition for food (both sexes tested) and competition for mates (only males tested). There was no significant difference between males from small and large broods in number of succesfull attacks (after which the other male moved away) during male-male aggressive interactions provoked by the presentation of a female in an adjacent cage. Nor did brood size affect latency to eat, time spent eating or success at displacing the other bird from the feeder during food competition tests. The results thus suggest consistently that later competitive ability of offspring is not affected by brood size in this species.

scholarly journals Review and Key to the World Parasitoids (Hymenoptera: Braconidae: Aphidiinae) of Greenideinae Aphids (Hemiptera: Aphididae), Including Notes on Invasive Pest Species

2010 ◽  
Vol 103 (3) ◽  
pp. 307-321 ◽  
Author(s):  
Petr Starý ◽  
Ehsan Rakhshani ◽  
Jan Havelka ◽  
Željko Tomanović ◽  
Nikolas G. Kavallieratos ◽  
...  
Keyword(s):  
Invasive Pest ◽  
Pest Species ◽  
The World ◽  
Invasive Pest Species
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