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Fish as local stressors of Pyrenean high mountain lakes: Arrival process and impact on amphibians and other organisms / Alexandre Miró (2016)
Titre : Fish as local stressors of Pyrenean high mountain lakes: Arrival process and impact on amphibians and other organisms Type de document : Électronique Auteurs : Alexandre Miró Editeur : Universitat de Barcelona. Departament d'Ecologia Année de publication : 2016 Importance : 272 p. Catégories : [CBNPMP-Thèmes] Amphibiens
[CBNPMP-Thèmes] Enjeux de conservation des lacs d'altitude
[CBNPMP-Thèmes] Relations et interactions individus-espèces
[CBNPMP-Géographique] PyrénéesRésumé : Pyrenean high mountain lakes are naturally fishless due to natural barriers that have prevented the natural colonisation of fish species from lower streams. However, there have been numerous trout introductions to such ecosystems, both in historical and recent periods. Differing from other high mountain regions, some high mountain lakes of the Pyrenees were exploited traditionally for trout cultivation. This activity started at least centuries ago and lasted until 1950s, affecting approximately 25% of the lakes. Since 1950, and similar to other high mountain regions, a wave of modern introductions with exotic species has affected among 35% and 85% of the lakes depending on the valley. In recent decades, minnows have also been introduced, being present in 2000 in 27% of Pyrenean high mountain lakes, as a result of recreational fishing with livebait. The first part of the thesis was intended to provide an objective description of the fish introduction process in the Pyrenees. For that purpose we collected data on trout and minnow occurrence from 520 high mountain lakes >0.5 ha of the southern Pyrenees and quantified, by generalized additive models, which particular factors either environmental or anthropogenic, best explained their present distribution and as a result their lake conservation status. The distribution of Salmo trutta in the southern slope of the Pyrenees was best explained by both, anthropogenic factors and lake characteristics, while only anthropogenic factors linked to recreational fishing were associated with the distribution of the exotic trout Salvelinus fontinalis and Oncorhynchus mykiss. For the case of minnow occurrence, previous presence of trout in the lake was the most explanative variable, confirming its association with recreational fishing using them as livebait. Trout and minnow introductions can cause large ecological problems and ecosystem alterations in high mountain lakes and ponds, since both trout and minnows occupy the top of a lake’s food chain. In the second part of the thesis, we sampled 1736 Pyrenean high mountain lakes and ponds at different levels of intensity and investigated the effects of introduced fish on indicator faunal groups such as amphibians and conspicuous macroinvertebrates in the littoral, and crustaceans from the plankton. We also studied if there was a trophic cascade from fish to the littoral epilithic community of these ecosystems. Our results showed that fish presence was linked with the disappearance of most amphibian species and of most conspicuous macroinvertebrates. Minnows also showed sizeable impact on the pelagic habitat reducing the abundance of some herbivorous species of zooplankton that appeared to be unaffected by trout. In the case of amphibian species, we found that, although introduced fish had a high local impact, western-eastern patterns of some environmental variables are the main drivers of amphibian species distribution at Pyrenean range scale. In addition, we confirmed the presence of a littoral trophic cascade that define most of the characteristics of the littoral epilithon of Pyrenean high mountain lakes and ponds, through fish predation of tadpoles and hence, by a drastic reduction of grazing activity. Lien pérenne : Handle : 10803/384835 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=150934 Miró, A. 2016. Fish as local stressors of Pyrenean high mountain lakes: Arrival process and impact on amphibians and other organisms. Universitat de Barcelona. Departament d'Ecologia, [S.l.]. 272 pp.Documents numériques
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Thèse (2016)URL Fleurs du Parc National des Pyrénées, 1. Étages montagnard et subalpin 1 / Georges Dupias (1987)
Titre de série : Fleurs du Parc National des Pyrénées, 1 Titre : Étages montagnard et subalpin 1 Type de document : Imprimé Auteurs : Georges Dupias (1917-1997) Editeur : Tarbes : Parc National des Pyrénées Année de publication : 1987 Importance : 212 p. ISBN/ISSN/EAN : 978-2-901835-08-0 Langues : Français (fre) Catégories : [CBNPMP-Thèmes] Flore
[CBNPMP-Thèmes] Parcs Nationaux
[CBNPMP-Géographique] PyrénéesMots-clés : Androsace cylindrica DC. ssp. hirtella (Dufour) Greuter & Burdet Scrophularia pyrenaica Bentham Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=76514 Dupias, G. 1987. Fleurs du Parc National des Pyrénées, 1. Étages montagnard et subalpin 1. Parc National des Pyrénées, Tarbes. 212 pp.Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 8282 8150 Livre Centre de documentation Bibliothèque Consultable Fleurs des Pyrénées faciles à reconnaître / Philippe Mayoux (1996)
Titre : Fleurs des Pyrénées faciles à reconnaître Type de document : Imprimé Auteurs : Philippe Mayoux ; Muséum d'Histoire Naturelle de Bagnères-de-Bigorre Editeur : Ibos : Rando éditions Année de publication : 1996 Importance : 63 p. Langues : Français (fre) Catégories : [CBNPMP-Thèmes] Flore
[CBNPMP-Géographique] PyrénéesPermalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=77595 Mayoux, P. 1996. Fleurs des Pyrénées faciles à reconnaître. Rando éditions, Ibos. 63 pp.Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 11050 1080 MAY Livre Centre de documentation Bibliothèque Consultable Les fleurs des Pyrénées. Tome 2 / Antonin Nicol (1987)
Titre : Les fleurs des Pyrénées. Tome 2 Type de document : Imprimé Auteurs : Antonin Nicol Année de publication : 1987 Importance : 187 p. ISBN/ISSN/EAN : 978-2-85302-025-1 Langues : Français (fre) Catégories : [CBNPMP-Thèmes] Guide de reconnaissance
[CBNPMP-Géographique] PyrénéesMots-clés : Daboecia cantabrica (Hudson) C. Koch Erodium manescavii Cosson Gagea lutea (L.) Ker-Gawler Lithospermum gastonii Bentham Geranium cinereum Cav. ssp. cinereum Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=76558 Nicol, A. 1987. Les fleurs des Pyrénées. Tome 2. , . 187 pp.Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 8320 1080 Livre Centre de documentation Bibliothèque Consultable Les fleurs des Pyrénées. Tome I / Antonin Nicol (1986)
Titre : Les fleurs des Pyrénées. Tome I Type de document : Imprimé Auteurs : Antonin Nicol Editeur : Pau : Marrimpouey Année de publication : 1986 Importance : 183 p. Note générale : PNP Biblio 3.1 NIC - 1925 Langues : Français (fre) Catégories : [CBNPMP-Thèmes] Guide de reconnaissance
[CBNPMP-Géographique] PyrénéesPermalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=76560 Nicol, A. 1986. Les fleurs des Pyrénées. Tome I. Marrimpouey, Pau. 183 pp.Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 8321 1080 Livre Centre de documentation Bibliothèque Consultable Les fleurs des Pyrénées. Tome III, spécial Endémiques / Antonin Nicol (1988)
PermalinkLes fleurs des Pyrénées, Tome IV, spécial Endémiques / Antonin Nicol (1991)
PermalinkPermalinkFlore du bassin sous-pyrénéen, ou description des plantes qui croissent naturellement dans cette circonscription géologique, avec l'indication spéciale des espèces qui se trouvent aux environs de Toulouse / Jean-Baptiste Noulet (1837)
PermalinkFlore pyrénéenne originale / Marcel Saule in Petite encyclopédie des Pyrénées, 1 (10/1999)
PermalinkPermalinkPermalinkPermalinkPermalinkLa flore du Tibidabo, suite / Sennen in Le Monde des plantes, 175 (Novembre-Décembre 1928)
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