Feeding of tropical freshwater fishes: seasonality in resource availability and resource use

Oecologia ◽  
1987 ◽  
Vol 71 (3) ◽  
pp. 397-404 ◽  
Author(s):  
A. Prejs ◽  
K. Prejs
Keyword(s):  
Resource Use ◽  
Resource Availability ◽  
Freshwater Fishes ◽  
Tropical Freshwater

Do the tropical freshwater fishes feed on aquatic fungi?

2011 ◽  
Vol 5 (1) ◽  
pp. 77-86
Author(s):  
Kandikere R. Sridhar ◽  
Naga M. Sudheep
Keyword(s):  
Freshwater Fishes ◽  
Aquatic Fungi ◽  
Tropical Freshwater

scholarly journals We need better understanding about functional diversity and vulnerability of tropical freshwater fishes

2016 ◽  
Vol 26 (3) ◽  
pp. 757-762 ◽  
Author(s):  
Jean R. S. Vitule ◽  
Angelo A. Agostinho ◽  
Valter M. Azevedo-Santos ◽  
Vanessa S. Daga ◽  
William R. T. Darwall ◽  
...  
Keyword(s):  
Functional Diversity ◽  
Freshwater Fishes ◽  
Tropical Freshwater

scholarly journals Leaf-level resource use for evergreen and deciduous conifers along a resource availability gradient

2000 ◽  
Vol 14 (3) ◽  
pp. 281-292 ◽  
Author(s):  
B. D. Kloeppel ◽  
S. T. Gower ◽  
J. G. Vogel ◽  
P. B. Reich
Keyword(s):  
Resource Use ◽  
Resource Availability ◽  
Leaf Level

Resource use and defence by ruby-throated hummingbirds during stopover

Behaviour ◽  
2019 ◽  
Vol 156 (2) ◽  
pp. 131-153
Author(s):  
Theodore J. Zenzal ◽  
Frank R. Moore
Keyword(s):  
Resource Use ◽  
Resource Availability ◽  
Migratory Birds ◽  
Fuel Load ◽  
Resource Quality ◽  
Access To Resources ◽  
Stopover Duration ◽  
Resource Defence ◽  
Conspecific Density

Abstract Many migrants must forage en route when fuel reserves are depleted and access to resources can be influenced by a variety of factors, including the sex, age, and current fuel stores of individuals, as well as resource availability. The objective of this study is to determine the factors that influence the use and defence of resources by migrating ruby-throated hummingbirds (Archilochus colubris). Our results illustrate that resource use: (1) is dependent on sex and resource defence, (2) decreases with fuel load and (3) increases with stopover duration as well as the number of unique feeders visited. Resource defence is closely tied to (1) competition, with the greatest conspecific density resulting in focal individuals being chased from feeders and (2) the interplay between resource quality and fuel load. Our research enhances our understanding of strategies migratory birds use to acquire and defend resources during stopover.

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