scholarly journals Reconsidering the role of photoperiod in relation to effects of precipitation and food availability on spring departure of a migratory bird

2011 ◽  
Vol 279 (1726) ◽  
pp. 15-16 ◽  
Author(s):  
Marilyn Ramenofsky
Keyword(s):  
Food Availability ◽  
Migratory Bird

scholarly journals Surface-Related Toxicity of Polystyrene Beads to Nematodes and the Role of Food Availability

2020 ◽  
Vol 54 (3) ◽  
pp. 1790-1798 ◽  
Author(s):  
Marie-Theres Mueller ◽  
Hendrik Fueser ◽  
Lam Ngoc Trac ◽  
Philipp Mayer ◽  
Walter Traunspurger ◽  
...  
Keyword(s):  
Food Availability ◽  
Polystyrene Beads

The role of food availability in hypoxia resistance of Amazonian Oscars

2008 ◽  
Vol 150 (3) ◽  
pp. S58 ◽  
Author(s):  
G. De Boeck ◽  
C. Wood ◽  
F. Iftikar ◽  
G. Scott ◽  
K. Sloman ◽  
...  
Keyword(s):  
Food Availability

Differences in growth rate, body condition, habitat use and food availability between island and mainland lizard populations ofAnolis nebulosusin Jalisco, Mexico

2014 ◽  
Vol 30 (5) ◽  
pp. 493-501 ◽  
Author(s):  
Héctor Hugo Siliceo-Cantero ◽  
Andrés García
Keyword(s):  
Growth Rate ◽  
Habitat Use ◽  
Food Availability ◽  
Body Condition ◽  
Food Supply ◽  
Geographic Isolation ◽  
Seasonal Fluctuations ◽  
Continental Population ◽  
Two Populations

Abstract:Lizards of the genusAnolishave been widely studied, however, little is known about the effects of environmental seasonality, food availability and geographic isolation on body condition, growth rate and habitat use of lizards. The existence of an insular and a continental population ofAnolis nebulosus(clouded anole), separated by only 0.47 km, represents an ideal opportunity to address this topic. We compared seasonal fluctuations in food availability (arthropod density) for anoles, as well as body condition, growth rate and habitat use in the two populations. Food availability throughout the year was sampled every 2 mo by trapping arthropods at each site. Lizards were also monitored and measured every 2 mo by surveying three quadrats in each site over 2 y giving a total of 30 visits for each quadrat. Results suggested that composition and density of food supply was similar for the two populations. Nevertheless, food supply responded to seasonality of rainfall, with an increase of 1.5 times during the rainy season. Despite similarity in food availability, insular anoles had body condition that was 5–10 times better, with growth rate twice as fast, and used similar perches. The role of predation, and inter- and intraspecific competition are discussed as possible drivers.

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