Stronger predation intensity and impact on prey communities in the tropics

Ecology ◽  
2021 ◽  
Author(s):  
Amy L. Freestone ◽  
Mark E. Torchin ◽  
Laura J. Jurgens ◽  
Mariana Bonfim ◽  
Diana P. López ◽  
...  
Keyword(s):  
Predation Intensity ◽  
The Tropics

scholarly journals Colonial ascidians strongly preyed upon, yet dominate the substrate in a subtropical fouling community

2019 ◽  
Vol 286 (1899) ◽  
pp. 20190396 ◽  
Author(s):  
Laurel Sky Hiebert ◽  
Edson A. Vieira ◽  
Gustavo M. Dias ◽  
Stefano Tiozzo ◽  
Federico D. Brown
Keyword(s):  
Interactive Effects ◽  
Southeastern Brazil ◽  
Fouling Communities ◽  
Colonial Species ◽  
Predation Intensity ◽  
Low Latitudes ◽  
Predation Treatment ◽  
The Tropics ◽  
Colonial Ascidians ◽  
Solitary Species

Higher diversity and dominance at lower latitudes has been suggested for colonial species. We verified this pattern in species richness of ascidians, finding that higher colonial-to-solitary species ratios occur in the tropics and subtropics. At the latitudinal region with the highest ratio, in southeastern Brazil, we confirmed that colonial species dominate space on artificial plates in two independent studies of five fouling communities. We manipulated settlement plates to measure effects of predation and competition on growth and survivorship of colonial versus solitary ascidians. Eight species were subjected to a predation treatment, i.e. caged versus exposed to predators, and a competition treatment, i.e. leaving versus removing competitors, to assess main and interactive effects. Predation had a greater effect on growth and survivorship of colonial compared to solitary species, whereas competition did not show consistent patterns. We hypothesize that colonial ascidians dominate at this subtropical site despite being highly preyed upon because they regrow when partially consumed and can adjust in shape and space to grow into refuges. We contend that these means of avoiding mortality from predation can have large influences on diversification patterns of colonial species at low latitudes, where predation intensity is greater.

The Tick Pest in the Tropics

1895 ◽  
Vol 40 (1022supp) ◽  
pp. 16330-16331
Keyword(s):  
The Tropics

Pathology of Renal Diseases in the Tropics

2003 ◽  
Vol 23 (1) ◽  
pp. 88-106 ◽  
Author(s):  
Vijitr Boonpucknavig ◽  
Virawudh Soontornniyomkij
Keyword(s):  
Renal Diseases ◽  
The Tropics

JOURNAL OF AQUACULTURE IN THE TROPICS

2018 ◽  
Keyword(s):  
The Tropics

: China's March towards the Tropics . Herold J. Wiens.

1955 ◽  
Vol 24 (10) ◽  
pp. 159-160
Author(s):  
E. Stuart Kirby
Keyword(s):  
The Tropics

Green Engineering: Cutting Energy Consumption in the Tropics

2009 ◽  
Author(s):  
Patricia Seybold
Keyword(s):  
Energy Consumption ◽  
Green Engineering ◽  
Cutting Energy ◽  
The Tropics

Intensified Systems of Farming in the Tropics and Subtropics

1997 ◽  
Author(s):  
J.A. Nicholas Wallis
Keyword(s):  
The Tropics
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