Journal ArticleDOI
Progress toward understanding the ecological impacts of nonnative species
Reads0
Chats0
TLDR
19 testable hypotheses that explain temporal and spatial variation in impact are identified and reviewed and highlight the importance of the functional ecology of the nonnative species and the structure, diversity, and evolutionary experience of the recipient community as general determinants of impact.Abstract:
A predictive understanding of the ecological impacts of nonnative species has been slow to develop, owing largely to an apparent dearth of clearly defined hypotheses and the lack of a broad theoretical framework. The context dependency of impact has fueled the perception that meaningful generalizations are nonexistent. Here, we identified and reviewed 19 testable hypotheses that explain temporal and spatial variation in impact. Despite poor validation of most hypotheses to date, evidence suggests that each can explain at least some impacts in some situations. Several hypotheses are broad in scope (applying to plants and animals in virtually all contexts) and some of them, intriguingly, link processes of colonization and impact. Collectively, these hypotheses highlight the importance of the functional ecology of the nonnative species and the structure, diversity, and evolutionary experience of the recipient community as general determinants of impact; thus, they could provide the foundation for a theoretical framework for understanding and predicting impact. Further substantive progress toward this goal requires explicit consideration of within-taxon and across-taxa variation in the per capita effect of invaders, and analyses of complex interactions between invaders and their biotic and abiotic environments.read more
Citations
More filters
Data from: Predator-free space, functional responses and biological invasions
Daniel Barrios-O'Neill,Jaimie T. A. Dick,Mark C. Emmerson,Anthony Ricciardi,Hugh J. MacIsaac +4 more
Journal ArticleDOI
Assessing the environmental impacts of invasive alien plants: a review of assessment approaches
Robert Bartz,Ingo Kowarik +1 more
TL;DR: In this article, the authors review the extent to which assessments (27 approaches) appraised the following: (i) different types of environmental impacts, (ii) context dependence, (iii) prospect for successful management, and (iv) transparency of assessment methods and criteria, underlying values and terminology.
Journal ArticleDOI
Scoring environmental and socioeconomic impacts of alien plants invasive in Europe
Zuzana Rumlerová,Zuzana Rumlerová,Montserrat Vilà,Jan Pergl,Wolfgang Nentwig,Petr Pyšek,Petr Pyšek,Petr Pyšek +7 more
TL;DR: Applying the GISS to plants, the most species-rich taxonomic group of alien organisms in Europe, is an important step towards providing managers and policymakers with a robust tool for identifying and prioritizing alien species with the highest impact.
Journal ArticleDOI
Non-linear effects of invasive lionfish density on native coral-reef fish communities
TL;DR: Given that the effects of lionfish on native fish abundance and biomass level-off at high lionfish densities, it appears important to remove all lionfish from small patch reefs to have the biggest influence on conserving the native community.
ReportDOI
New England and northern New York forest ecosystem vulnerability assessment and synthesis: a report from the New England Climate Change Response Framework project
Maria K. Janowiak,Anthony W. D'Amato,Christopher W. Swanston,Louis R. Iverson,Frank R. Thompson,William D. Dijak,Stephen G. Matthews,Matthew P. Peters,Anantha Prasad,Jason Sapp Fraser,Leslie A. Brandt,Patricia R. Butler-Leopold,Stephen D. Handler,P. Danielle Shannon,Diane Burbank,John Campbell,Charles V. Cogbill,Matthew J. Duveneck,Marla R. Emery,Nicholas A. Fisichelli,Jane R. Foster,Jennifer Hushaw,Laura S. Kenefic,Amanda Mahaffey,Toni Lyn Morelli,Nicholas J. Reo,Paul G. Schaberg,K. Rogers Simmons,Aaron R. Weiskittel,Sandy Wilmot,David Y. Hollinger,Erin D. Lane,Lindsey E. Rustad,Pamela H. Templer +33 more
TL;DR: This paper assessed the vulnerability of forest ecosystems across the New England region (Connecticut, Maine, Massachusetts, New Hampshire, northern New York, Rhode Island, and Vermont) under a range of projected future climates.
References
More filters
Journal ArticleDOI
Mechanisms of Maintenance of Species Diversity
TL;DR: Stabilizing mechanisms are essential for species coexistence and include traditional mechanisms such as resource partitioning and frequency-dependent predation, as well as mechanisms that depend on fluctuations in population densities and environmental factors in space and time.
Journal ArticleDOI
The metacommunity concept: a framework for multi-scale community ecology
Mathew A. Leibold,Marcel Holyoak,Nicolas Mouquet,Nicolas Mouquet,Priyanga Amarasekare,Jonathan M. Chase,Martha F. Hoopes,Robert D. Holt,Jonathan B. Shurin,Richard Law,David Tilman,Michel Loreau,Andrew Gonzalez +12 more
TL;DR: This framework is used to discuss why the metacommunity concept is useful in modifying existing ecological thinking and illustrate this with a number of both theoretical and empirical examples.
Journal ArticleDOI
The Ecology of Invasions by Animals and Plants.
P. W. Richards,Charles Elton +1 more
Journal ArticleDOI
Resource Availability and Plant Antiherbivore Defense
TL;DR: Resource availability in the environment is proposed as the major determinant of both the amount and type of plant defense, and theories on the evolution of plant defenses are compared with other theories.
Journal ArticleDOI
A General Hypothesis of Species Diversity
TL;DR: A new hypothesis, based on differences in the rates at which populations of competing species approach competitive equilibrium (reduction or exclusion of some species), is proposed to explain patterns of species diversity.