scholarly journals The pig of the Lençóis Maranhenses, first record of wild boar (Sus scrofa) in Maranhão State, Brazil

Check List ◽  
2019 ◽  
Vol 15 (4) ◽  
pp. 1-1
Author(s):  
Gilberto Nepomuceno Salvador ◽  
Nathali Garcia Ristau ◽  
Isabel Sanches da Silva ◽  
André Nunes
Keyword(s):  
Invasive Species ◽  
Wild Boar ◽  
Sus Scrofa ◽  
Native Species ◽  
National Park ◽  
First Record ◽  
Negative Effects ◽  
The World

The wild boar is one of the most dangerous invasive species. It is widespread in the world, including records for many Brazilian states. However, there is a lack of record from Maranhão state. In the present study, we reported a population of wild boar inside the Lençóis Maranhenses National Park, in Barrerinhas county, State of Maranhão. We discuss about the negative effects of this introduction on native species, including a record of predation by wild boar in nests of endangered turtles.

scholarly journals First record of Wild Boar (Sus scrofa Linnaeus, 1758) in Lençóis Maranhenses National Park, Maranhão state, northern Brazil

Check List ◽  
2019 ◽  
Vol 15 (5) ◽  
pp. 915-919
Author(s):  
Gilberto Nepomuceno Salvador ◽  
Nathali Garcia Ristau ◽  
Isabel Sanches da Silva ◽  
André Valle Nunes
Keyword(s):  
Wild Boar ◽  
Native Species ◽  
National Park ◽  
First Record ◽  
Native Range ◽  
Negative Effects ◽  
Turtle Species ◽  
The World ◽  
First Occurrence ◽  
Northern Brazil

The Wild Boar is one of the world’s most dangerous invasive species. It is now established in many regions beyond its native range, including many Brazilian states. However, the species has never been recorded from the Brazilian state of Maranhão. Here, we report the first occurrence of this species from Lençóis Maranhenses National Park, within the municipality of Barrerinhas, Maranhão state. We discuss the negative effects of this introduction on native species, including the problem with predation of nests of an endangered turtle species by Wild Boar.

scholarly journals Occurrence record of Sus scrofa Linnaeus, 1758 (Mammalia: Artiodactyla) at Estação Ecológica de Itirapina, São Paulo state, Brazil

Check List ◽  
2013 ◽  
Vol 9 (1) ◽  
pp. 136 ◽  
Author(s):  
Roberto Guilherme Trovati
Keyword(s):  
Invasive Species ◽  
Wild Boar ◽  
Sus Scrofa ◽  
Sao Paulo ◽  
São Paulo ◽  
Paulo State ◽  
The World ◽  
São Paulo State ◽  
The Many ◽  
Biodiversity Decline

Invasive species are the second cause of biodiversity decline in the world. Among the many invasive species, the Sus scrofa (wild boar) is amongst those that cause more impacts. Our aim was to report the presence of the wild boar in the last remaining open area of Cerrado in the São Paulo state, Brazil. In September 2007 an individual was seen and tracks were also observed during the same period at the Estação Ecológica de Itirapina.

High predatory efficiency and abundance drive expected ecological impacts of a marine invasive fish

2020 ◽  
Vol 637 ◽  
pp. 195-208 ◽  
Author(s):  
EM DeRoy ◽  
R Scott ◽  
NE Hussey ◽  
HJ MacIsaac
Keyword(s):  
Invasive Species ◽  
Native Species ◽  
Ecological Impact ◽  
Marine Species ◽  
Ecological Impacts ◽  
Negative Effects ◽  
Marine Predator ◽  
Eastern Gulf Of Mexico ◽  
Red Grouper ◽  
Per Capita

The ecological impacts of invasive species are highly variable and mediated by many factors, including both habitat and population abundance. Lionfish Pterois volitans are an invasive marine species which have high reported detrimental effects on prey populations, but whose effects relative to native predators are currently unknown for the recently colonized eastern Gulf of Mexico. We used functional response (FR) methodology to assess the ecological impact of lionfish relative to 2 functionally similar native species (red grouper Epinephelus morio and graysby grouper Cephalopholis cruentata) foraging in a heterogeneous environment. We then combined the per capita impact of each species with their field abundance to obtain a Relative Impact Potential (RIP). RIP assesses the broader ecological impact of invasive relative to native predators, the magnitude of which predicts community-level negative effects of invasive species. Lionfish FR and overall consumption rate was intermediate to that of red grouper (higher) and graysby grouper (lower). However, lionfish had the highest capture efficiency of all species, which was invariant of habitat. Much higher field abundance of lionfish resulted in high RIPs relative to both grouper species, demonstrating that the ecological impact of lionfish in this region will be driven mainly by high abundance and high predator efficiency rather than per capita effect. Our comparative study is the first empirical assessment of lionfish per capita impact and RIP in this region and is one of few such studies to quantify the FR of a marine predator.

HARMONIA AXYRIDIS (PALLAS, 1773) (COLEOPTERA: COCCINELLIDAE) IN MOSCOW CITY AND YALTA CITY: ITS COMPETITION WITH NATIVE SPECIES OF COCCINELLIDS AND THE INFLUENCE OF PARASITOIDS ON ITS NUMBER

2021 ◽  
Vol 14 (4) ◽  
pp. 114-133
Author(s):  
D. A. Romanov ◽  
E. A. Matveikina
Keyword(s):  
Invasive Species ◽  
Native Species ◽  
Harmonia Axyridis ◽  
Adalia Bipunctata ◽  
Widespread Species ◽  
Insignificant Effect ◽  
The World ◽  
Moscow City ◽  
Number Of Individuals ◽  
Made In

The Asian ladybird Harmonia axyridis is an invasive species that is rapidly spreading around the world. Occupying new territories, H. axyridis often causes a decrease in the biodiversity of native species of coccinellids, competing with them for food resources. A comparison of H. axyridis with six species of ladybirds was made in terms of the ratio of the number of individuals and the degree of infestation with parasitoids. In Moscow city, the most widespread species of ladybirds was Adalia bipunctata (67.1%), H. axyridis ranks second (16.5%). The total infestation of H. axyridis pupae with parasitoids is 1.8% in Moscow city and 12.2% in Yalta city. Infestation with parasitoids of other ladybird species in Moscow city is much higher: from 11.0% to 36.4%. Thus, parasitoids effectively regulate the number of native ladybird species, but have an insignificant effect on the number of the invasive species H. axyridis .

The Cane or “Bufo” Toad (Rhinella marina) in Florida

EDIS ◽  
2017 ◽  
Vol 2017 (5) ◽  
Author(s):  
Audrey C. Wilson ◽  
Steven A> Johnson
Keyword(s):  
Invasive Species ◽  
Native Species ◽  
Rhinella Marina ◽  
Central Florida ◽  
The World ◽  
History Of ◽  
The 1950S

Cane Toads are an invasive species in Florida and in many countries around the world. They have been established in Florida since the 1950s and have now spread to human-modified habitat throughout much of South and Central Florida. Cane Toads are larger and more poisonous than Florida's native toads; they can be fatal to dogs that try to eat them, and more research is necessary to understand their impacts on Florida's native species. This document covers the history of Cane Toads in Florida and how to distinguish them from native species.  It describes their ecology and impacts on both ecosystems and people. Finally, it provides advice for dealing with Cane Toads in yards and neighborhoods.

scholarly journals First record of human trichinosis in Chile associated with consumption of wild boar (Sus scrofa)

2005 ◽  
Vol 100 (1) ◽  
pp. 17-18 ◽  
Author(s):  
Enrique García ◽  
Lidia Mora ◽  
Patricio Torres ◽  
Maria Isabel Jercic ◽  
Rubén Mercado
Keyword(s):  
Wild Boar ◽  
Sus Scrofa ◽  
First Record

scholarly journals Exploiting intraspecific competitive mechanisms to control invasive cane toads ( Rhinella marina )

2012 ◽  
Vol 279 (1742) ◽  
pp. 3436-3442 ◽  
Author(s):  
Michael R. Crossland ◽  
Takashi Haramura ◽  
Angela A. Salim ◽  
Robert J. Capon ◽  
Richard Shine
Keyword(s):  
Invasive Species ◽  
Communication Systems ◽  
Native Species ◽  
Negative Effects ◽  
Specific Chemical ◽  
Rhinella Marina ◽  
Invasive Species Control ◽  
Tropical Australia ◽  
Competitive Mechanisms ◽  
Species Specific

If invasive species use chemical weapons to suppress the viability of conspecifics, we may be able to exploit those species-specific chemical cues for selective control of the invader. Cane toads ( Rhinella marina ) are spreading through tropical Australia, with negative effects on native species. The tadpoles of cane toads eliminate intraspecific competitors by locating and consuming newly laid eggs. Our laboratory trials show that tadpoles find those eggs by searching for the powerful bufadienolide toxins (especially, bufogenins) that toads use to deter predators. Using those toxins as bait, funnel-traps placed in natural waterbodies achieved near-complete eradication of cane toad tadpoles with minimal collateral damage (because most native (non-target) species are repelled by the toads' toxins). More generally, communication systems that have evolved for intraspecific conflict provide novel opportunities for invasive-species control.

scholarly journals Evaluation of Volatile Organic Compounds Obtained from Breath and Feces to Detect Mycobacterium tuberculosis Complex in Wild Boar (Sus scrofa) in Doñana National Park, Spain

Pathogens ◽  
2020 ◽  
Vol 9 (5) ◽  
pp. 346 ◽  
Author(s):  
Pauline Nol ◽  
Radu Ionescu ◽  
Tesfalem Geremariam Welearegay ◽  
Jose Angel Barasona ◽  
Joaquin Vicente ◽  
...  
Keyword(s):  
Mycobacterium Tuberculosis ◽  
Volatile Organic Compounds ◽  
Wild Boar ◽  
Organic Compounds ◽  
Sus Scrofa ◽  
National Park ◽  
Mycobacterium Tuberculosis Complex ◽  
Tuberculosis Complex ◽  
Doñana National Park ◽  
Volatile Organic

The presence of Mycobacterium tuberculosis complex (MTBC) in wild swine, such as in wild boar (Sus scrofa) in Eurasia, is cause for serious concern. Development of accurate, efficient, and noninvasive methods to detect MTBC in wild swine would be highly beneficial to surveillance and disease management efforts in affected populations. Here, we describe the first report of identification of volatile organic compounds (VOC) obtained from the breath and feces of wild boar to distinguish between MTBC-positive and MTBC-negative boar. We analyzed breath and fecal VOC collected from 15 MTBC-positive and 18 MTBC-negative wild boar in Donaña National Park in Southeast Spain. Analyses were divided into three age classes, namely, adults (>2 years), sub-adults (12–24 months), and juveniles (<12 months). We identified significant compounds by applying the two-tailed statistical t-test for two samples assuming unequal variance, with an α value of 0.05. One statistically significant VOC was identified in breath samples from adult wild boar and 14 were identified in breath samples from juvenile wild boar. One statistically significant VOC was identified in fecal samples collected from sub-adult wild boar and three were identified in fecal samples from juvenile wild boar. In addition, discriminant function analysis (DFA) was used to build classification models for MTBC prediction in juvenile animals. Using DFA, we were able to distinguish between MTBC-positive juvenile wild boar and MTBC-negative juvenile wild boar using breath VOC or fecal VOC. Based on our results, further research is warranted and should be performed using larger sample sizes, as well as wild boar from various geographic locations, to verify these compounds as biomarkers for MTBC infection in this species. This new approach to detect MTBC infection in free-ranging wild boar potentially comprises a reliable and efficient screening tool for surveillance in animal populations.

scholarly journals Molecular identification of Nematodirus spathiger (Nematoda: Molineidae) in Lama guanicoe from Patagonia, Argentina

2014 ◽  
Vol 51 (2) ◽  
pp. 79-82 ◽  
Author(s):  
R. Petrigh ◽  
M. Fugassa
Keyword(s):  
Invasive Species ◽  
Native Species ◽  
National Park ◽  
Ecological Niche ◽  
Diagnostic Methods ◽  
Control Measures ◽  
South American ◽  
Ecological Risks ◽  
Lama Guanicoe ◽  
South American Camelids

AbstractThe guanaco (Lama guanicoe) is the major inhabitant and the largest wild artiodactyl in Patagonia. The introduction of invasive species into its ecological niche poses ecological risks, since invasive species may introduce harmful parasites to this native species. In this work, filariform larvae of the Nematodirus genus were found in feces of guanacos from the Perito Moreno National Park in Argentina. All species were characterized according to morphological features and molecular analyses using ribosomal DNA (rDNA). For the molecular analysis, rDNA fragments were amplified by PCR and then sequenced. The results of the BLASTN comparison threw a 99 % of identity with Nematodirus spathiger and 97 % with N. helvetianus, suggesting that N. spathiger is the infecting parasite. Nematodirus spathiger together with N. filicollis and N. battus causes diarrhea and deaths in sheep and, in some cases, in South American camelids. The availability of more accurate diagnostic methods such as PCR could improve the control measures for gastrointestinal helminthiasis.

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