'Trophic position' diaporamas de présentation

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Seabirds

Seabirds

The predatory role of the commander squid, Berryteuthis magister , in the eastern Bering Sea ecosystem. Mary Hunsicker, Timothy Essington, Kerim Aydin and Bryan Ishida Alaska Marine Science Symposium January 2009. Marine Mammals. Seabirds. Fish. Crustaceans. Squid. Juvenile fish. Squid.

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517 views • 33 slides
Impacts of exotic species to foodweb structure of Hawaiian streams

Impacts of exotic species to foodweb structure of Hawaiian streams

Impacts of exotic species to foodweb structure of Hawaiian streams. Richard A. MacKenzie, Tara Holitzki, Karla McDermid. Research objectives. To document how poeciliids are affecting Hawaiian streams. We hypothesized that high densities of omnivorous poeciliids would:

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391 views • 27 slides
The saprotrofic food chain in terrestrial ecosystems : Soil Biota

The saprotrofic food chain in terrestrial ecosystems : Soil Biota

The saprotrofic food chain in terrestrial ecosystems : Soil Biota. Impact of the introduction of the ant Pheidole megacephala on native invertebrates in a Australian rain forest. The saprotrofic food chain in terrestrial ecosystems : Soil Biota.

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216 views • 21 slides
LENTIC SESTON ENHANCEMENT OF TAILWATER FISHERIES

LENTIC SESTON ENHANCEMENT OF TAILWATER FISHERIES

LENTIC SESTON ENHANCEMENT OF TAILWATER FISHERIES. John S. Sproul 1 , Kent A. Hatch 2 , Dennis K. Shiozawa 3

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284 views • 18 slides
The saprotrofic food chain in terrestrial ecosystems : Soil Biota

The saprotrofic food chain in terrestrial ecosystems : Soil Biota

The saprotrofic food chain in terrestrial ecosystems : Soil Biota. What controls the community / food web structure? Top-down or bottom-up? (predation or availability of food resources) - Litter enrichment experiments (food, habitat structure, moisture) - Predator exclosure experiments

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192 views • 17 slides

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