Effects of Hay Cropping on Invertebrate Biomass and the Breeding Ecology of Savannah Sparrows (Passerculus Sandwichensis)

In hay fields in the northeastern United States, Savannah Sparrows (Passerculus sandwichensis) whose first nests fail as a result of the harvesting of hay renest in the same field in a dramatically altered habitat. We evaluated availability of invertebrate prey in two treatments (harvested and unhar...

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Veröffentlicht in:	The Auk 2008-07, Vol.125 (3), p.700-710
Hauptverfasser:	Zalik, Nathan J, Strong, Allan M
Format:	Artikel
Sprache:	eng
Schlagworte:	adult compensation agriculture Animal behavior Animal nesting Animal reproduction Biomass Bird nesting Clutch size Food Food availability food limitation Food resources Foraging hay fields Influence Invertebrata Invertebrates Nesting Nests Passerculus sandwichensis Research s Savannah Sparrow Savannahs Sparrows Studies Vegetation
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