scholarly journals Habitat alteration facilitates the dominance of invasive species through disrupting niche partitioning in floodplain wetlands

2021 ◽  
Author(s):  
Yuyu Wang ◽  
Wenzhuo Tan ◽  
Bin Li ◽  
Li Wen ◽  
Guangchun Lei
Keyword(s):  
Invasive Species ◽  
Niche Partitioning ◽  
Habitat Alteration ◽  
Floodplain Wetlands

New Species for the Community

2017 ◽  
Author(s):  
Mark A. McPeek
Keyword(s):  
Climate Change ◽  
Invasive Species ◽  
Community Structure ◽  
New Species ◽  
Local Community ◽  
Habitat Alteration ◽  
Phenotypic Differences ◽  
Extinction Rates ◽  
Regional Community ◽  
Past Climate Change

This chapter considers the main processes that operate at the regional and biogeographic scales to ultimately shape local community structure—namely, speciation and biogeographic mixing of taxa. It first defines what a “species” is before discussing the range of mechanisms that give rise to new species, and more specifically reproductive isolation. In particular, it examines the extent to which the speciation process directly induces differences in ecologically important traits between the progenitor and daughter species. It then explains how the phenotypic differences generated at the time of speciation determine what type of community member the new species begins as. It also shows how past climate change affected current local and regional community structure by periodic forcing of mass movements of species across Earth and causing increases in speciation and extinction rates. Finally, it evaluates the dynamics of invasive species and their role in habitat alteration today.

scholarly journals Differential population responses of native and alien rodents to an invasive predator, habitat alteration and plant masting

2013 ◽  
Vol 280 (1773) ◽  
pp. 20132075 ◽  
Author(s):  
Keita Fukasawa ◽  
Tadashi Miyashita ◽  
Takuma Hashimoto ◽  
Masaya Tatara ◽  
Shintaro Abe
Keyword(s):  
Invasive Species ◽  
Endemic Species ◽  
Habitat Management ◽  
Ecological Impacts ◽  
Trophic Levels ◽  
Habitat Alteration ◽  
Black Rat ◽  
Invasive Predator ◽  
Anthropogenic Habitat ◽  
Spatio Temporal

Invasive species and anthropogenic habitat alteration are major drivers of biodiversity loss. When multiple invasive species occupy different trophic levels, removing an invasive predator might cause unexpected outcomes owing to complex interactions among native and non-native prey. Moreover, external factors such as habitat alteration and resource availability can affect such dynamics. We hypothesized that native and non-native prey respond differently to an invasive predator, habitat alteration and bottom-up effects. To test the hypothesis, we used Bayesian state-space modelling to analyse 8-year data on the spatio-temporal patterns of two endemic rat species and the non-native black rat in response to the continual removal of the invasive small Indian mongoose on Amami Island, Japan. Despite low reproductive potentials, the endemic rats recovered better after mongoose removal than did the black rat. The endemic species appeared to be vulnerable to predation by mongooses, whose eradication increased the abundances of the endemic rats, but not of the black rat. Habitat alteration increased the black rat's carrying capacity, but decreased those of the endemic species. We propose that spatio-temporal monitoring data from eradication programmes will clarify the underlying ecological impacts of land-use change and invasive species, and will be useful for future habitat management.

scholarly journals A Landscape Analysis of Gene Flow and Population Reductions in the Tiger Salamander (Ambystoma tigrinum) Across the Northern Range of Yellowstone National Park

2003 ◽  
Vol 27 ◽  
pp. 87-99
Author(s):  
Stephen Spear ◽  
Charles Peterson
Keyword(s):  
Invasive Species ◽  
Human Disturbance ◽  
National Park ◽  
Habitat Degradation ◽  
General Pattern ◽  
Ambystoma Tigrinum ◽  
Habitat Alteration ◽  
Chemical Contamination ◽  
Amphibian Species ◽  
The Past

In the past two decades, there has been increasing awareness of a general pattern of decline of amphibian species (Semlitsch 2003a). A variety of factors have been implicated in these declines, including habitat alteration, climate change, chemical contamination, disease, invasive species, and commercial exploitation. It is likely that these different hypothesized causes combine to reduce populations. For example, human development such as roads or houses may not only destroy habitat, but also facilitate introduction of chemicals, invasive species, and disease. Habitat degradation is much easier to reverse or mitigate than the other factors (Semlitsch 2002). Therefore, protecting habitat from excessive human disturbance may indeed be the most productive way to conserve amphibian populations.

Invasive Species

2017 ◽  
Keyword(s):  
Invasive Species

Invasive species to surge as ship traffic soars on the high seas

Nature ◽  
2019 ◽  
Vol 567 (7749) ◽  
pp. 437-437
Keyword(s):  
Invasive Species ◽  
Ship Traffic ◽  
High Seas

Tsunami wreckage serves as liferafts for invasive species

Nature ◽  
2017 ◽  
Author(s):  
Rachael Lallensack
Keyword(s):  
Invasive Species

Invasive Shot Hole Borers Euwallacea fornicatus, E. kuroshio, and E. perbrevis (Coleoptera: Curculionidae: Scolytinae)

EDIS ◽  
2020 ◽  
Vol 2020 (1) ◽  
pp. 7
Author(s):  
Demian F. Gomez ◽  
Jiri Hulcr ◽  
Daniel Carrillo
Keyword(s):  
South Africa ◽  
Invasive Species ◽  
Prevention And Control ◽  
Economic Impacts ◽  
Forest Resources ◽  
Economic Damage ◽  
Ambrosia Beetles ◽  
Invasive Insects ◽  
The World ◽  
And Control

Invasive species, those that are nonnative and cause economic damage, are one of the main threats to ecosystems around the world. Ambrosia beetles are some of the most common invasive insects. Currently, severe economic impacts have been increasingly reported for all the invasive shot hole borers in South Africa, California, Israel, and throughout Asia. This 7-page fact sheet written by Demian F. Gomez, Jiri Hulcr, and Daniel Carrillo and published by the School of Forest Resources and Conservation describes shot hole borers and their biology and hosts and lists some strategies for prevention and control of these pests. http://edis.ifas.ufl.edu/fr422

Ancient fish and recent invaders: white sturgeon Acipenser transmontanus diet response to invasive-species-mediated changes in a benthic prey assemblage

2014 ◽  
Vol 514 ◽  
pp. 163-174 ◽  
Author(s):  
SC Zeug ◽  
A Brodsky ◽  
N Kogut ◽  
AR Stewart ◽  
JE Merz
Keyword(s):  
Invasive Species ◽  
White Sturgeon ◽  
Acipenser Transmontanus ◽  
Benthic Prey
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