Ecological Invasions Offer Opportunities: Ecological communities are constantly under threat of invasion by exotic species: how successful a particular invasion will be is often difficult to predict

Science ◽  
1987 ◽  
Vol 238 (4828) ◽  
pp. 752-753 ◽  
Author(s):  
R. LEWIN
Keyword(s):  
Exotic Species ◽  
Ecological Communities ◽  
Ecological Invasions

Thirty years later, should we be more concerned for the ongoing invasion of Mozambique Tilapia in Australia?

2008 ◽  
Vol 14 (4) ◽  
pp. 235 ◽  
Author(s):  
Robert G. Doupé ◽  
Damien W. Burrows
Keyword(s):  
Exotic Species ◽  
Population Size ◽  
Biological Diversity ◽  
Biogeochemical Cycling ◽  
Individual Species ◽  
Ecological Communities ◽  
Mozambique Tilapia ◽  
Disturbance Regimes ◽  
Agricultural Economies

Exotic speCies complicate the management of native biological diversity and their ecosystems, because their effects are pervasive and varied (Cox 2004). For example, they can be beneficial and integral components of global agricultural economies (Sax et al, 2007), but when unmanaged and by definition invasive, they can negatively change important variables such as the genetics and population size of individual species, the diversity and structure of ecological communities, disturbance regimes and biogeochemical cycling (Vitousek 1990).

Parasites in Ecological Communities

2009 ◽  
Author(s):  
Melanie J. Hatcher ◽  
Alison M. Dunn
Keyword(s):  
Ecological Communities

Climate-associated trends and variability in ichthyoplankton phenology from the longest continuous larval fish time series on the east coast of the United States

2020 ◽  
Vol 650 ◽  
pp. 269-287
Author(s):  
WC Thaxton ◽  
JC Taylor ◽  
RG Asch
Keyword(s):  
United States ◽  
Environmental Variability ◽  
Larval Fish ◽  
Interspecific Interactions ◽  
River Estuary ◽  
Atlantic Multidecadal Oscillation ◽  
The United States ◽  
Larval Survival ◽  
Ecological Communities ◽  
Northerly Wind

As the effects of climate change become more pronounced, variation in the direction and magnitude of shifts in species occurrence in space and time may disrupt interspecific interactions in ecological communities. In this study, we examined how the fall and winter ichthyoplankton community in the Newport River Estuary located inshore of Pamlico Sound in the southeastern United States has responded to environmental variability over the last 27 yr. We relate the timing of estuarine ingress of 10 larval fish species to changes in sea surface temperature (SST), the Atlantic Multidecadal Oscillation, the North Atlantic Oscillation, wind strength and phenology, and tidal height. We also examined whether any species exhibited trends in ingress phenology over the last 3 decades. Species varied in the magnitude of their responses to all of the environmental variables studied, but most shared a common direction of change. SST and northerly wind strength had the largest impact on estuarine ingress phenology, with most species ingressing earlier during warm years and delaying ingress during years with strong northerly winds. As SST warms in the coming decades, the average date of ingress of some species (Atlantic croaker Micropogonias undulatus, summer flounder Paralichthys dentatus, pinfish Lagodon rhomboides) is projected to advance on the order of weeks to months, assuming temperatures do not exceed a threshold at which species can no longer respond through changes in phenology. These shifts in ingress could affect larval survival and growth since environmental conditions in the estuarine and pelagic nursery habitats of fishes also vary seasonally.

Annotated сhecklist of the freshwater fishes of Iran

2010 ◽  
Vol 19 (2) ◽  
pp. 361-386 ◽  
Author(s):  
H.R. Esmaeili ◽  
B.W. Coad ◽  
A. Gholamifard ◽  
N. Nazari ◽  
A. Teimory
Keyword(s):  
New Species ◽  
Exotic Species ◽  
Endemic Species ◽  
Freshwater Fishes ◽  
Gambusia Holbrooki

The confirmed freshwater fishes of Iran comprise 202 species in 104 genera, 28 families, 17 orders and 3 classes found in 19 different basins. There are also 23 species whose presence in Iranian waters needs confirmation by specimens. The most diverse order is the Cypriniformes with 120 confirmed species (59.4%) followed by Perciformes with 28 species (13.9%), Cyprinodontiformes (10 species, 5.0%), Clupeiformes (9 species, 4.5%), Salmoniformes (7 species, 3.5%), Mugiliformes and Siluriformes each with 6 species (3.0%), Acipenseriformes (5 species, 2.5%), Gasterosteiformes (3 species, 1.5%), and 8 other orders each with one species (0.5%). New species are still being discovered, 7 described in 2009, while others are being resurrected from synonymy, newly recorded from Iran, or exotic species newly established. Some taxonomic problems remain and are commented on briefly. Thirty-nine endemic species (19.3%) in 6 families and 23 exotic species (11.4%) in 8 families are listed here. The mosquitofish, Gambusia holbrooki Girard, 1859 is the most widespread exotic species.

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