scholarly journals Climate change and invasive species: a physiological performance comparison of invasive and endemic bees in Fiji

2020 ◽  
pp. jeb.230326
Author(s):  
Carmen R. B. da Silva ◽  
Julian E. Beaman ◽  
James B. Dorey ◽  
Sarah J. Barker ◽  
Nicholas C. Congedi ◽  
...  
Keyword(s):  
Climate Change ◽  
Invasive Species ◽  
Invasive Plants ◽  
Thermal Tolerance ◽  
Performance Comparison ◽  
Desiccation Resistance ◽  
Metabolic Rates ◽  
Adaptive Potential ◽  
Tropical Island ◽  
Mixed Support

Anthropogenic climate change and invasive species are two of the greatest threats to biodiversity, affecting the survival, fitness and distribution of many species around the globe. Invasive species are often expected to have broad thermal tolerances, be highly plastic, or have high adaptive potential when faced with novel environments. Tropical island ectotherms are expected to be vulnerable to climate change as they often have narrow thermal tolerances and limited plasticity. In Fiji, only one species of endemic bee, Homalictus fijiensis, is commonly found in the lowland regions, but two invasive bee species, Braunsapis puangensis and Ceratina dentipes, have recently been introduced to Fiji. These introduced species pollinate invasive plants and might compete with H. fijiensis and other native pollinators for resources. To test whether certain performance traits promote invasiveness of some species, and to determine which species are the most vulnerable to climate change, we compared the thermal tolerance, desiccation resistance, metabolic rate, and seasonal performance adjustments of endemic and invasive bees in Fiji. The two invasive species tended to be more resistant to thermal and desiccation stress than H. fijiensis, while H. fijiensis had greater capacity to adjust their CTMAX with season, and H. fijiensis females tended to have higher metabolic rates, than B. puangensis females. These findings provide mixed support for current hypotheses for the functional basis of the success of invasive species, however, we expect the invasive bees in Fiji to be more resilient to climate change due to their increased thermal tolerance and desiccation resistance.

scholarly journals Autecology of Melastoma malabathricum, an invasive species in the Way Kambas National Park, Indonesia

2020 ◽  
Vol 21 (5) ◽  
Author(s):  
JANI MASTER ◽  
IBNUL QAYIM ◽  
DEDE SETIADI ◽  
NYOTO SANTOSO
Keyword(s):  
Climate Change ◽  
Invasive Species ◽  
Invasive Plants ◽  
National Park ◽  
Abiotic Factors ◽  
Canopy Cover ◽  
Vegetation Analysis ◽  
Melastoma Malabathricum ◽  
Way Kambas National Park ◽  
The Way

Abstract. Master J, Qayim I, Setiadi D, Santoso N. 2020. Autecology of Melastoma malabathricum, an invasive species in the Way Kambas National Park, Indonesia. Biodiversitas 21: 2303-2310. Melastoma malabathricum has become one of the invasive plants in the Way Kambas National Park (WKNP), Lampung, Indonesia. This plant is feared to be a problem in efforts to conserve biodiversity in the WKNP area. Therefore, this study aimed to analyze the factors causing the invasion of these plants. The vegetation analysis plot was placed on three types of habitats in the study location, namely, forests, swamps, and invaded swamps, then measurements and records of vegetation data and abiotic factors were recorded in each plot. The results reveal that M. malabathricum dominates swamp habitat and negatively associated with trees, which can provide canopy. Abiotic factors, such as canopy cover, water level, and soil fertility, become supporting factors for the invasion. In addition, climate change, which is causing drought also contributes to the invasion of M. malabathricum at the WKNP.

scholarly journals Squeezed from All Sides: Urbanization, Invasive Species, and Climate Change Threaten Riparian Forest Buffers

2020 ◽  
Vol 12 (4) ◽  
pp. 1448 ◽  
Author(s):  
Lea Johnson ◽  
Tara Trammell ◽  
Tracie Bishop ◽  
Joshua Barth ◽  
Scott Drzyzga ◽  
...  
Keyword(s):  
Climate Change ◽  
Invasive Species ◽  
Land Cover ◽  
Invasive Plants ◽  
Agricultural Land ◽  
Riparian Forest ◽  
Urban Land ◽  
Global Changes ◽  
Forest Patches ◽  
Woody Vines

Streamside forests of urbanizing coastal regions lie at the nexus of global changes: rising sea levels, increasing storm surge, expanding urban development, and invasive species. To understand how these combined stressors affect forest conditions, we identified forest patches adjacent to urban land, analyzed adjacent land cover, modeled forest inundation, and sampled 100 sites across the Chesapeake Bay and Delaware Bay watersheds. We found that the majority of forest patches are adjacent to urban land and projected flooding will affect 8–19% of regional forested land. We observed non-native invasive plants in 94% of forest plots. Trees were predominantly native, but over half of shrub stems were invasive species and more than 80% of plots contained invasive woody vines. Disturbance of human origin was correlated with abundance of invasive trees. Signs of deer activity were common. Richness and number of growth forms of invasive plants were related to adjacent agricultural land cover. These data reveal that streamside forests are impacted by the interacting stressors of urbanization, climate change, and invasive species spread. Our results emphasize the importance of protection and restoration of forests in urban regions and point to the need for a social-ecological systems approach to improve their condition.

Identifying high-impact invasive plants likely to shift into Northern New England with climate change

2021 ◽  
pp. 1-21
Author(s):  
William Coville ◽  
Bridget J. Griffin ◽  
Bethany A. Bradley
Keyword(s):  
Climate Change ◽  
Invasive Species ◽  
New England ◽  
Invasive Plants ◽  
Ecological Impacts ◽  
Ecological Communities ◽  
Or Economics ◽  
Northern New England ◽  
Negative Impacts ◽  
Almost All

Abstract Invasive plants are expanding their ranges due to climate change, creating new challenges for invasive species management. Early detection and rapid response could address some nascent invasions, but limited resources make it impossible to monitor for every range shifting species. Here, we aimed to create a more focused watch list by evaluating the impacts of 87 plant species projected to shift into Northern New England (the states of Maine, New Hampshire, and/or Vermont). We used the Environmental Impact Classification for Alien Taxa (EICAT) protocol to evaluate all ecological impacts reported in the scientific literature, scoring ecological impacts from 1 (minimal concern) to 4 (major) depending on the level of reported impact. For each species, we also recorded any reported impacts on socioeconomic systems (agriculture, human health, or economics) as ‘present’. We found 24 range-shifting species with impacts on ecological communities, of which 22 have reported impacts in ecosystems common to northern New England. Almost all of these species also had impacts on socioeconomic systems and were available for purchase at ornamental plant retailers or online. Thus, these species can be considered high risk to northern New England with climate change based on their large negative impacts and potential to arrive quickly with deliberate human introduction. Our study demonstrates the use of impact assessments for creating targeted priority lists for invasive species monitoring and management.

The Biology of Mediterranean-Type Ecosystems

2018 ◽  
Author(s):  
Karen J. Esler ◽  
Anna L. Jacobsen ◽  
R. Brandon Pratt
Keyword(s):  
Climate Change ◽  
South Africa ◽  
Invasive Species ◽  
Habitat Loss ◽  
Endemic Species ◽  
Geographic Area ◽  
Cutting Edge ◽  
Wide Range ◽  
The Mediterranean ◽  
Mediterranean Type Ecosystems

The world’s mediterranean-type climate regions (including areas within the Mediterranean, South Africa, Australia, California, and Chile) have long been of interest to biologists by virtue of their extraordinary biodiversity and the appearance of evolutionary convergence between these disparate regions. Comparisons between mediterranean-type climate regions have provided important insights into questions at the cutting edge of ecological, ecophysiological and evolutionary research. These regions, dominated by evergreen shrubland communities, contain many rare and endemic species. Their mild climate makes them appealing places to live and visit and this has resulted in numerous threats to the species and communities that occupy them. Threats include a wide range of factors such as habitat loss due to development and agriculture, disturbance, invasive species, and climate change. As a result, they continue to attract far more attention than their limited geographic area might suggest. This book provides a concise but comprehensive introduction to mediterranean-type ecosystems. As with other books in the Biology of Habitats Series, the emphasis in this book is on the organisms that dominate these regions although their management, conservation, and restoration are also considered.

Vegetation ecology with anthropic drivers and consequences

2021 ◽  
pp. 030913332199937
Author(s):  
George P Malanson ◽  
Michelle L Talal ◽  
Elizabeth R Pansing ◽  
Scott B Franklin
Keyword(s):  
Climate Change ◽  
Invasive Species ◽  
Plant Communities ◽  
Fire Ecology ◽  
Progress Report ◽  
Processes Of Change ◽  
Community Classification ◽  
The Status ◽  
Plant Community Classification ◽  
Anthropogenic Drivers

Current research on vegetation makes a difference in people’s lives. Plant community classification is a backbone of land management, plant communities are changing in response to anthropogenic drivers, and the processes of change have impacts on ecosystem services. In the following progress report, we summarize the status of classification and recent research on vegetation responses to pollution, especially nitrogen deposition, invasive species, climate change, and land use and direct exploitation. Two areas with human feedbacks are underscored: fire ecology and urban ecology. Prominent questions at the current research frontier are highlighted with attention to new perspectives.

scholarly journals The widespread collapse of an invasive species: Argentine ants ( Linepithema humile ) in New Zealand

2011 ◽  
Vol 8 (3) ◽  
pp. 430-433 ◽  
Author(s):  
Meghan Cooling ◽  
Stephen Hartley ◽  
Dalice A. Sim ◽  
Philip J. Lester
Keyword(s):  
Climate Change ◽  
Invasive Species ◽  
New Zealand ◽  
Argentine Ant ◽  
Environmental Costs ◽  
Argentine Ants ◽  
Ant Communities ◽  
Mean Survival Time ◽  
Colony Collapse ◽  
Increasing Temperature

Synergies between invasive species and climate change are widely considered to be a major biodiversity threat. However, invasive species are also hypothesized to be susceptible to population collapse, as we demonstrate for a globally important invasive species in New Zealand. We observed Argentine ant populations to have collapsed in 40 per cent of surveyed sites. Populations had a mean survival time of 14.1 years (95% CI = 12.9–15.3 years). Resident ant communities had recovered or partly recovered after their collapse. Our models suggest that climate change will delay colony collapse, as increasing temperature and decreasing rainfall significantly increased their longevity, but only by a few years. Economic and environmental costs of invasive species may be small if populations collapse on their own accord.

scholarly journals Evaluating within-population variability in behavior and demography for the adaptive potential of a dispersal-limited species to climate change

2016 ◽  
Vol 6 (24) ◽  
pp. 8740-8755 ◽  
Author(s):  
David J. Muñoz ◽  
Kyle Miller Hesed ◽  
Evan H. Campbell Grant ◽  
David A. W. Miller
Keyword(s):  
Climate Change ◽  
Population Variability ◽  
Adaptive Potential
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