Ecology.
Publisher:
Brooklyn Botanical Garden. Washington, DC : Ecological Society of America
Frequency: Monthly, 2000-
Country: United States
Language: English
Author(s):
Brooklyn Botanic Garden., Ecological Society of America.
Start Year:1920 -
ISSN:
0012-9658 (Print)
1939-9170 (Electronic)
0012-9658 (Linking)
1939-9170 (Electronic)
0012-9658 (Linking)
Impact Factor
4.8
2023
| NLM ID: | 0043541 |
| (DNLM): | E01120000(s) |
| (OCoLC): | 02006581 |
| Coden: | ECOLAR |
| LCCN: | 21017038 |
| Classification: | W1 EC914 |
Density-dependent resource selection by a terrestrial herbivore in response to sea-to-land nutrient transfer by seals. Sea-to-land nutrient transfers can connect marine food webs to those on land, creating a dependence on marine webs by opportunistic species. We show how nitrogen, imported by gray seals, Halichoerus grypus, and traced through stable isotope (δ N) measurements in marram grass, Ammophila breviligulata, significantly alters foraging behavior of a free-roaming megaherbivore (feral horses, Equus ferus caballus) on Sable Island, Canada. Values of δ N correlated with protein content of marram and strongly related to pupping-seal densities, and positively influenced selective foraging by horses. The...