Results 61 to 70 of about 497 (109)

Evaluating the efficiency of conservation efforts: a frontier regression approach [PDF]

open access: yes, 2012
2012 Summer.Includes bibliographical references.Conservation efforts in the United Kingdom began in 1949 with the Nature Conservancy Act. The goals of this legislation were to preserve natural areas and areas inhabited by threatened and endangered ...
Keenan, Andrew
core  

A new record of Vertigo substriata (Jeffreys, 1833) in Hungary [PDF]

open access: yes, 2002
Vertigo substriata - as a refugial relict species- has a highly fragmented distribution In Hungary. Similarly to Vertigo alpestris it is one of the most endangered Vertigo species in the country due to habitat requirements and forest management.
Hornung, Erzsébet, von Proschwitz, Ted
core  

Mogelijke consequenties van reductie van de hoeveelheid discard voor N2000 instandhoudingdoelen [PDF]

open access: yes
Discards zijn overboord gezette bijvangst van vissersschepen. Volgens de Nederlandse Visie op herziening van het Gemeenschappelijk Visserijbeleid (GVB) zouden discards uitgebannen moeten worden.
Bemmelen, R.S.A., van
core   +1 more source

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