LATITUDINAL VARIATION IN PALATABILITY OF SALT-MARSH PLANTS: WHICH TRAITS ARE RESPONSIBLE?

By Erin L. Siska, S. Pennings, Tracy L. Buck, M. Hanisak. 2002

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Altitudinal variation of secondary metabolites in flowering heads of the Asteraceae: trends and causes (2010, background): “Thus, according to this theory, amounts (and diversity) of bioactive natural products decreases from the equator to the poles (Bakus and Green 1974; Siska et al. 2002).”
A cross-continental test of the Enemy Release Hypothesis: leaf herbivory on Acer platanoides (L.) is three times lower in North America than in its native Europe (2009, background): “Herbivory varies with latitude (Coley and Barone 1996; Siska et al. 2002) and in general is more intense at lower latitudes.”
Adaptive geographical clines in the growth and defense of a native plant (2012, background): “…and colleagues has shown that genetically based plant resistance traits are higher at lower latitudes for several temperate plant species, and this corresponds to greater levels of herbivory in natural populations and bioassays (Siska et al. 2002, Salgado and Pennings 2005, Pennings et al. 2009).”
Introduction and Spread of an Exotic Plant, Spartina alterniflora, Along Coastal Marshes of China (2017, background): “alterniflora distribution across latitudinal gradients (Pennings et al. 2001; Siska et al. 2002; Kirwan et al. 2009).”
Is There a Latitudinal Gradient in the Importance of Biotic Interactions (2009, background): “Preference was correlated with a number of plant traits, e.g., toughness, palatability of polar extracts, and nitrogen content (Siska et al. 2002).”