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2008 - Crayfish of Romania

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• Minimum viable<br />

population size<br />

Population<br />

dynamics<br />

• Evidence <strong>of</strong><br />

reproduction /<br />

recruitment<br />

INDIRECT<br />

Habitat extent<br />

• Area <strong>of</strong> habitat(s)<br />

containing species<br />

Habitat condition<br />

• Structure <strong>of</strong><br />

associated<br />

vegetation layers<br />

• Species<br />

composition <strong>of</strong><br />

associated plant<br />

community<br />

• Maintenance <strong>of</strong><br />

specific habitat<br />

features supporting<br />

the species<br />

Maintenance<br />

requirements<br />

• Presence <strong>of</strong> other<br />

required organisms<br />

Alte surse de<br />

informare<br />

At least 1 specimen in the area<br />

observed annually<br />

> 3 trees with holes with fresh<br />

wood dust that indicates<br />

emergent larval activity<br />

<br />

<br />

no decline in habitat area <br />

sparse trees or woodland<br />

edges<br />

deciduous forests (Quercus sp) <br />

fresh dead oak trees or cut oak<br />

trunks<br />

Fisa completata de: Adrian Ruicanescu<br />

Contributie asigurate<br />

de:<br />

Ultima updatare: 13.08.07<br />

<br />

* *<br />

*<br />

Quercus sp *<br />

P. J. van Helsdingen (Ed.) Background information on invertebrates <strong>of</strong> the Habitats<br />

Directive and the Bern Convention. Part I - Crustacea, Coleoptera and Lepidoptera: 53-<br />

58.

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