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Influence of macrohabitat preferences on the distribution of European brook and river lampreys: Implications for conservation and management

dc.contributor.authorFerreira, Ana F.
dc.contributor.authorQuintella, Bernardo R.
dc.contributor.authorMaia, Carla
dc.contributor.authorAlexandre, Carlos S.
dc.contributor.authorCapinha, Cesar
dc.contributor.authorAlmeida, Pedro R.
dc.date.accessioned2013-09-12T18:14:20Z
dc.date.available2013-09-12T18:14:20Z
dc.date.issued2013
dc.description.abstractThe European river lamprey, Lampetra fluviatilis (L.), and the European brook lamprey, Lampetra planeri (Bloch, 1784), are considered highly threatened in Portugal. However, the lack of information about the ecology and distribution of these species poses difficulties to the identification of concrete actions directed to their conservation. A total of 401 sampling sites, randomly distributed throughout the entire Portuguese mainland territory were selected, and Lampetra sp. ammocoetes presence or absence checked with electrofishing. These data, together with 11 macrohabitat predictors, were analyzed using Boosted Regression Trees (BRTs). The BRT models consistently identified five environmental variables as the most important for predicting the distribution of European brook and river lamprey ammocoetes: altitude, distance to coast, sand, maximum temperature of the warmest month and precipitation of the driest month. The relationships of these variables with the species probability of occurrence suggest that lampreys occur in low altitude river stretches (<170 m), relatively close to the coast (<150 km) and with a sandy substrate (>70% sand). In addition, intermediate values of temperature and precipitation were also found to have a positive correlation with the species occurrence. A map with the probability of occurrence of Lampetra sp. in Portugal was generated and stretches of rivers were delimited with different conservation priorities. Rivers classified with the highest level of conservation priority were considered to be proposed as Special Areas of Conservation, under the Natura 2000 Networking Programme.por
dc.identifier.citationBiological Conservation, 159, 175-186por
dc.identifier.issn0006-3207
dc.identifier.urihttp://hdl.handle.net/10400.12/2353
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherElsevierpor
dc.subjectL. fluviatilispor
dc.subjectLampetra planeripor
dc.subjectPredictive modelpor
dc.subjectBoosted regression treespor
dc.subjectThreatened speciespor
dc.subjectPortugalpor
dc.titleInfluence of macrohabitat preferences on the distribution of European brook and river lampreys: Implications for conservation and managementpor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceOxfordpor
oaire.citation.endPage186por
oaire.citation.startPage175por
oaire.citation.titleBiological Conservationpor
oaire.citation.volume159por
rcaap.rightsembargoedAccesspor
rcaap.typearticlepor

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