Invasive Species: Herbicides Can Facilitate a Positive Outcome for Invasive and Endangered Species Interactions

2014 ◽  
Vol 25 (5) ◽  
pp. 316-319
Author(s):  
K. George Beck
Keyword(s):  
Invasive Species ◽  
Endangered Species ◽  
Species Interactions ◽  
Positive Outcome

scholarly journals Predator recognition and responses in the endangered Macquarie perch (Macquaria australasica)

2015 ◽  
Vol 66 (2) ◽  
pp. 127 ◽  
Author(s):  
Culum Brown ◽  
Jennifer Morgan
Keyword(s):  
Invasive Species ◽  
Endangered Species ◽  
Introduced Species ◽  
Visual Cues ◽  
Chemical Cues ◽  
Conservation Management ◽  
Perca Fluviatilis ◽  
Habitat Destruction ◽  
Perch Perca Fluviatilis ◽  
Threatening Processes

Macquarie perch, Macquaria austalasica, is an endangered species endemic to southern Australia whose distribution is highly fragmented and continues to decline. Key threatening processes include habitat destruction, dams and weirs, overfishing and interactions with introduced species. Here, we examined the responses of small and large Macquarie perch to two native predators and to the introduced redfin perch, Perca fluviatilis. Our results showed that Macquarie perch generally avoided large-bodied native predators but was attracted to small-bodied native predators. Responses to large and small redfin perch lay between these two extremes, suggesting that the Macquarie perch does treat these foreign fish as potential threats. Macquarie perch relied on both visual and chemical cues to identify predators, although its response tended to be stronger when exposed to visual cues. The results suggest that Macquarie perch has the capacity to recognise and respond to invasive species in a threat-sensitive manner, which has positive implications for the conservation management of the species.

Biological invasions in the context of green roofs

2016 ◽  
Vol 62 (1-2) ◽  
pp. 32-43 ◽  
Author(s):  
Nicole L. Kinlocka ◽  
Bracha Y. Schindler ◽  
Jessica Gurevitch
Keyword(s):  
Invasive Species ◽  
Biological Invasions ◽  
Plant Communities ◽  
Species Interactions ◽  
Green Roof ◽  
Green Roofs ◽  
Plant Invasions ◽  
Ecological Aspects ◽  
Urban Environmental Problems

Green roofs can mitigate a number of urban environmental problems when green roof plant communities provide ecosystem services. However, this perspective may fail to address ecological aspects of the plant community. In particular, it does not account for the potential for green roofs to facilitate biological invasions. We consider current research in green roof ecology in light of the literature on biological invasions, focusing on plant invasion. We evaluate the role of species composition and novel communities, species interactions, succession, and dispersal on the trajectory of green roof plant communities. Green roofs have the potential to introduce invasive species through initial plantings, to become dominated by invasive species, and to spread invasive species, and we provide recommendations for plant selection and maintenance to reduce the risks of facilitating plant invasions to surrounding communities.

scholarly journals A looming exotic reptile pet trade in India: patterns and knowledge gaps

2021 ◽  
Vol 13 (6) ◽  
pp. 18518-18531
Author(s):  
A. Pragatheesh ◽  
V. Deepak ◽  
H.V. Girisha ◽  
Monesh Singh Tomar
Keyword(s):  
Social Media ◽  
Invasive Species ◽  
International Trade ◽  
Endangered Species ◽  
Native Species ◽  
Web Portals ◽  
Pet Trade ◽  
Wild Fauna ◽  
Reptile Species ◽  
Social Media Platforms

Commercial trade of exotic reptiles through CITES (the Convention on International Trade in Endangered Species of Wild Fauna and Flora) in India is relatively recent (<2 decades).  Social media platforms and web portals are known to be used for pet trade.  Exotic pet trade is not legally regulated within India.  Therefore, little is known on the scale at which this trade is carried out in India.  We conducted a two-year study between 2018 and 2020 gathering information of exotic reptile pet trade online and summarized CITES documentation of the yearly import export records from 1976 to 2018 by CITES secretariat.  This manuscript provides a baseline for the extent of the trade, invasive species and the species traded in mainland India.  We found that there is an extensive trade of exotic reptiles in the country, comprising 84 species including the highly venomous species such as Bitis gabonica.  According to CITES records of 1976–2018, 98.6% of the reptile imports into India have not been reported to the CITES management authorities in India.  We also found some evidence of trade in protected native species through the exotic pet trade network.  Furthermore, some highly threatened reptile species including many listed in Appendix I of CITES are traded in India. 

scholarly journals Predation of invasive raccoon (Procyon lotor) on hibernating bats in the Nietoperek reserve in Poland

2020 ◽  
Author(s):  
Jan Cichocki ◽  
Agnieszka Ważna ◽  
Anna Bator-Kocoł ◽  
Grzegorz Lesiński ◽  
Renata Grochowalska ◽  
...  
Keyword(s):  
Invasive Species ◽  
Endangered Species ◽  
Nature Reserve ◽  
Procyon Lotor ◽  
Mammal Species ◽  
Plant Materials ◽  
Local Populations ◽  
Myotis Myotis ◽  
Myotis Nattereri ◽  
Anthropogenic Food

AbstractThe raccoon Procyon lotor is an invasive species inhabiting Europe and its impact on local populations, particularly on endangered species, is not well known. The aim of the study was to determine whether raccoons pose a threat to bats wintering in the Nietoperek nature reserve, one of the largest hibernation sites in Central Europe. In the winter of 2016–2017, 67 raccoon scats were collected in one of the main underground corridors in the reserve. It was confirmed, with the use of molecular methods, that the scats belonged to raccoons. Raccoon prey was identified based on the features of skulls, jaws or hair found in the scats. Analysis of the determinable remains indicates that bats (including Daubenton’s bat/Natterer’s bat/Brandt’s bat M. daubentonii/nattereri/brandtii, Natterer’s bat Myotis nattereri, greater mouse-eared bat Myotis myotis, brown long-eared bat Plecotus auritus) made up the largest percentage of raccoon diet (96%). Remains of other mammal species, lizards Lacerta spp., plant materials and anthropogenic food were also identified in raccoon scats. The results of the research indicate that predation by raccoons can constitute a significant factor in the increasing mortality of bats wintering in Nietoperek.

scholarly journals Identifying cost-effective invasive species control to enhance endangered species populations in the Grand Canyon, USA

2018 ◽  
Vol 220 ◽  
pp. 12-20 ◽  
Author(s):  
Lucas S. Bair ◽  
Charles B. Yackulic ◽  
Michael R. Springborn ◽  
Matthew N. Reimer ◽  
Craig A. Bond ◽  
...  
Keyword(s):  
Invasive Species ◽  
Endangered Species ◽  
Grand Canyon ◽  
Cost Effective ◽  
Invasive Species Control

scholarly journals Invasive species and bushmeat hunting contributing to wildlife conservation: the case of feral pigs in a Neotropical wetland

Oryx ◽  
2011 ◽  
Vol 45 (1) ◽  
pp. 78-83 ◽  
Author(s):  
Arnaud Leonard Jean Desbiez ◽  
Alexine Keuroghlian ◽  
Ubiratan Piovezan ◽  
Richard Ernest Bodmer
Keyword(s):  
Invasive Species ◽  
Wildlife Conservation ◽  
Tooth Wear ◽  
Positive Outcome ◽  
Ecological Impacts ◽  
Structured Interviews ◽  
Feral Pigs ◽  
Pecari Tajacu ◽  
Conservation Threats ◽  
Bushmeat Hunting

AbstractAn unusual combination of two major conservation threats, invasive species and bushmeat hunting, has had a positive outcome for wildlife conservation in the Brazilian Pantanal. The Pantanal is a wetland and one of the few non-protected areas in the Neotropics where people live but rarely hunt native wildlife. To understand why wildlife hunting is not a major conservation issue in the Pantanal an exploratory survey, semi-structured interviews, skull collection and tooth wear analysis of feral pig Sus scrofa, white-lipped peccary Tayassu pecari and collared peccary Pecari tajacu were conducted, and hunting registers distributed, in the central region of the Pantanal. The results showed that feral pigs are the main hunting target. Feral pigs are effectively acting as a replacement species for hunting of native wildlife because the pigs provide a constant, culturally acceptable, readily available and free source of meat and oil to remote ranches. We cannot evaluate, however, if the buffer from hunting that feral pigs provide to native wildlife outweigh this species’ potential negative ecological impacts.

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