Red Crabs in Rain Forest, Christmas Island: Biotic Resistance to Invasion by an Exotic Snail

Oikos ◽  
1991 ◽  
Vol 62 (1) ◽  
pp. 25 ◽  
Author(s):  
P. S. Lake ◽  
Dennis J. O'Dowd
Keyword(s):  
Rain Forest ◽  
Biotic Resistance ◽  
Christmas Island ◽  
Resistance To Invasion

Red Crabs in Rain Forest, Christmas Island: Differential Herbivory of Seedlings

Oikos ◽  
1990 ◽  
Vol 58 (3) ◽  
pp. 289 ◽  
Author(s):  
Dennis J. O'Dowd ◽  
P. S. Lake
Keyword(s):  
Rain Forest ◽  
Christmas Island

scholarly journals A two-phase plant-soil feedback experiment to explore biotic influences on Phragmites australis invasion in North American wetlands

2021 ◽  
Author(s):  
Sean Lee ◽  
Thomas J. Mozdzer ◽  
Samantha K. Chapman ◽  
M. Gonzalez Mateu ◽  
A. H. Baldwin ◽  
...  
Keyword(s):  
North America ◽  
Phragmites Australis ◽  
Biotic Resistance ◽  
Soil Microbial Communities ◽  
Two Phase ◽  
Soil Microbial ◽  
Plant Soil ◽  
Soil Mesocosms ◽  
Soil Feedback ◽  
Resistance To Invasion

Plants can cultivate soil microbial communities that affect subsequent plant growth through a plant-soil feedback (PSF).  Strong evidence indicates that PSFs can mediate the invasive success of exotic upland plants, but many of the most invasive plants occur in wetlands.  In North America, the rapid spread of European Phragmites australis cannot be attributed to innate physiological advantages, thus PSFs may mediate invasion. Here we apply a two-phase fully-factorial plant-soil feedback design in which field-derived soil inocula were conditioned using saltmarsh plants and then were added to sterile soil mesocosms and planted with each plant type.  This design allowed us to assess complete soil biota effects on intraspecific PSFs between native and introduced P. australis as well as heterospecific feedbacks between P. australis and the native wetland grass, Spartina patens. Our results demonstrate that native P. australis experienced negative conspecific feedbacks while introduced P. australis experienced neutral conspecific feedbacks.  Interestingly, S. patens soil inocula inhibited growth in both lineages of P. australis while introduced and native P. australis inocula promoted the growth of S. patens suggestive of biotic resistance against P. australis invasion by S. patens . Our findings suggest that PSFs are not directly promoting the invasion of introduced P. australis in North America. Furthermore, native plants like S. patens seem to exhibit soil microbe mediated biotic resistance to invasion which highlights the importance of disturbance in mediating introduced P. australis invasion.

scholarly journals Biotic resistance to invasion is ubiquitous across ecosystems of the United States

2019 ◽  
Vol 23 (3) ◽  
pp. 476-482 ◽  
Author(s):  
Evelyn M. Beaury ◽  
John T. Finn ◽  
Jeffrey D. Corbin ◽  
Valerie Barr ◽  
Bethany A. Bradley
Keyword(s):  
United States ◽  
Biotic Resistance ◽  
The United States ◽  
Resistance To Invasion

Niche opportunity and ant invasion: the case of Wasmannia auropunctata in a New Caledonian rain forest

2005 ◽  
Vol 21 (1) ◽  
pp. 93-98 ◽  
Author(s):  
Julien Le Breton ◽  
Hervé Jourdan ◽  
Jean Chazeau ◽  
Jérôme Orivel ◽  
Alain Dejean
Keyword(s):  
Resource Use ◽  
Rain Forest ◽  
Biotic Resistance ◽  
Fire Ant ◽  
Food Sources ◽  
Ant Colonies ◽  
Wasmannia Auropunctata ◽  
Nesting Sites ◽  
Island Communities ◽  
Little Fire Ant

Due to the unbalanced distribution of their fauna and flora, which leads to the creation of a niche opportunities, it is generally accepted that island communities offer weak biotic resistance to biological invasion. In order to empirically test this statement, we compared resource use by ants in the understorey of an undisturbed New Caledonian rain forest recently invaded by the little fire ant, Wasmannia auropunctata. We tested the exploitation of: (1) food sources by placing baits on all trees with trunks greater than 5 cm in diameter; and (2) nesting sites on two tree species likely to shelter ant colonies. In non-invaded areas, the native ants occupied only 44.6% of the baits after 2 h of exposure, while in invaded areas all the baits were occupied by numerous W. auropunctata workers. Similarly, in non-invaded areas only 48.9% of Meryta coriacea (Araliaceae) trees and 64.5% of Basselinia pancheri (Arecaceae) sheltered ants, while in invaded areas W. auropunctata nested in 92.6–98.3% of these trees. Also, workers attended native Margarodidae (Hemiptera) for which they promoted the development of populations significantly larger than those attended by native ants. Thus native ants appear unable to efficiently exploit and defend several of the available food sources and nesting sites, providing a niche opportunity for an invader like W. auropunctata.

scholarly journals Erratum

1997 ◽  
Vol 13 (4) ◽  
pp. 578-578
Author(s):  
P. Green
Keyword(s):  
Indian Ocean ◽  
Total Variation ◽  
Rain Forest ◽  
Activity Patterns ◽  
Christmas Island ◽  
Density And Biomass

Green, P. T. (1997)Red crabs in rain forest on Christmas Island, Indian Ocean: activity patterns, density and biomass. Vol. 13 Part 1: 17–38. On page 29 the phrase: “but a significant correlation existed across sites (r=0.81, n=44, P<0.001).” should read: “but a significant correlation existed across sites (r=-0.69, n=44, P<0.001).”On page 33 the phrase “but the same correlation accounted for 81% of total variation when all sites were analysed together.” should read: “but the same correlation accounted for 48% of total variation when all sites were analysed together.”

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