{"id":1361,"date":"2026-09-15T15:24:25","date_gmt":"2026-09-15T13:24:25","guid":{"rendered":"https:\/\/igwildebiene.ch\/projet-abeilles-sauvages-beckenried-nw\/"},"modified":"2026-11-14T18:13:28","modified_gmt":"2026-11-14T17:13:28","slug":"projet-abeilles-sauvages-beckenried-nw","status":"publish","type":"page","link":"https:\/\/igwildebiene.ch\/fr\/projet-abeilles-sauvages-beckenried-nw\/","title":{"rendered":"Projet abeilles sauvages Beckenried (NW)"},"content":{"rendered":"<div class=\"et_pb_section_0 et_pb_section et_section_regular et_flex_section\"><div class=\"et_pb_row_0 et_pb_row et_flex_row\"><div class=\"et_pb_column_0 et_pb_column et-last-child et_flex_column et_pb_css_mix_blend_mode_passthrough et_flex_column_24_24 et_flex_column_24_24_tablet et_flex_column_24_24_phone\"><div class=\"et_pb_text_0 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module\"><div class=\"et_pb_text_inner\"><p><strong>Direction du projet :<\/strong> <a href=\"mailto:ar@igwildebiene.ch\">Andr\u00e9 Rey<\/a><\/p>\n<\/div><\/div><div class=\"et_pb_text_1 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module\"><div class=\"et_pb_text_inner\"><p><strong>Contexte<\/strong><br \/>L\u2019osmie <em>Chelostoma grande<\/em>, vuln\u00e9rable (VU) et extr\u00eamement rare au nord des Alpes, est encore pr\u00e9sente \u00e0 Beckenried, probablement toutefois dans une population petite et isol\u00e9e. Un projet de conservation 2025-2028 doit la favoriser de mani\u00e8re cibl\u00e9e. L\u2019esp\u00e8ce niche dans le bois mort \u2013 par exemple en lisi\u00e8re de for\u00eat riche en structures et ensoleill\u00e9e \u2013 et r\u00e9colte le pollen des knauties sur les prairies maigres extensives voisines. D\u2019autres esp\u00e8ces cibles relevant du m\u00eame groupe \u00e9cologique et b\u00e9n\u00e9ficiant des m\u00eames mesures sont deux esp\u00e8ces \u00e9galement potentiellement menac\u00e9es (NT) : l\u2019andr\u00e8ne des knauties (<em>Andrena hattorfiana<\/em>) et la m\u00e9gachile <em>Megachile ligniseca<\/em>. <\/p>\n<\/div><\/div><div class=\"et_pb_image_0 et_pb_image et_pb_module et_flex_module\"><span class=\"et_pb_image_wrap\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/igwildebiene.ch\/wp-content\/uploads\/2026\/09\/Chelostoma_grande_f_Gola_di-Gouta_Liguria_25062022_AR_5.jpg\" width=\"2000\" height=\"1358\" srcset=\"https:\/\/igwildebiene.ch\/wp-content\/uploads\/2026\/09\/Chelostoma_grande_f_Gola_di-Gouta_Liguria_25062022_AR_5.jpg 2000w, https:\/\/igwildebiene.ch\/wp-content\/uploads\/2026\/09\/Chelostoma_grande_f_Gola_di-Gouta_Liguria_25062022_AR_5-1280x869.jpg 1280w, https:\/\/igwildebiene.ch\/wp-content\/uploads\/2026\/09\/Chelostoma_grande_f_Gola_di-Gouta_Liguria_25062022_AR_5-980x665.jpg 980w, https:\/\/igwildebiene.ch\/wp-content\/uploads\/2026\/09\/Chelostoma_grande_f_Gola_di-Gouta_Liguria_25062022_AR_5-480x326.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) and (max-width: 1280px) 1280px, (min-width: 1281px) 2000px, 100vw\" class=\"wp-image-73\" \/><\/span><\/div><div class=\"et_pb_text_2 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module\"><div class=\"et_pb_text_inner\"><p><em>Photo : la femelle de Chelostoma grande sur une fleur de knautie, sa source exclusive de pollen (photo : \u00a9 Andr\u00e9 Rey).<\/em><\/p>\n<\/div><\/div><div class=\"et_pb_text_3 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module\"><div class=\"et_pb_text_inner\"><p>Le p\u00e9rim\u00e8tre du projet se situe sur le versant expos\u00e9 au nord-ouest au-dessus du village de Beckenried, en amont de l\u2019autoroute, entre 500 et 1000 m d\u2019altitude. Le paysage est marqu\u00e9 par une mosa\u00efque de haies, de for\u00eats et de prairies. Les surfaces herbag\u00e8res extensives se pr\u00e9sentent surtout sous des formes fra\u00eeches et humides. Les mesures envisag\u00e9es sont, d\u2019une part, la promotion de prairies aux bons peuplements de knauties fleurissant durant toute la p\u00e9riode de vol des esp\u00e8ces cibles (optimisation des dates de fauche), d\u2019autre part la revalorisation des lisi\u00e8res par la promotion de bois mort ensoleill\u00e9. <\/p>\n<\/div><\/div><div class=\"et_pb_text_4 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module\"><div class=\"et_pb_text_inner\"><p><strong>Objectif du projet<\/strong><br \/>L\u2019objectif est d\u2019assurer durablement le maintien de l\u2019esp\u00e8ce cible principale dans la r\u00e9gion et de favoriser son extension au-del\u00e0 de la population relictuelle isol\u00e9e. En parall\u00e8le, d\u2019autres esp\u00e8ces prot\u00e9g\u00e9es pr\u00e9sentes dans le secteur doivent \u00eatre favoris\u00e9es.<\/p>\n<\/div><\/div><div class=\"et_pb_image_1 et_pb_image et_pb_module et_flex_module\"><span class=\"et_pb_image_wrap\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/igwildebiene.ch\/wp-content\/uploads\/2026\/09\/Andrena_hattorfiana_F_Moehlin_20200520_41_3.jpg\" width=\"1500\" height=\"1034\" srcset=\"https:\/\/igwildebiene.ch\/wp-content\/uploads\/2026\/09\/Andrena_hattorfiana_F_Moehlin_20200520_41_3.jpg 1500w, https:\/\/igwildebiene.ch\/wp-content\/uploads\/2026\/09\/Andrena_hattorfiana_F_Moehlin_20200520_41_3-1280x882.jpg 1280w, https:\/\/igwildebiene.ch\/wp-content\/uploads\/2026\/09\/Andrena_hattorfiana_F_Moehlin_20200520_41_3-980x676.jpg 980w, https:\/\/igwildebiene.ch\/wp-content\/uploads\/2026\/09\/Andrena_hattorfiana_F_Moehlin_20200520_41_3-480x331.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) and (max-width: 1280px) 1280px, (min-width: 1281px) 1500px, 100vw\" class=\"wp-image-74\" \/><\/span><\/div><div class=\"et_pb_text_5 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module\"><div class=\"et_pb_text_inner\"><p><em>Photo : l\u2019andr\u00e8ne des knauties (Andrena hattorfiana) pr\u00e9f\u00e8re elle aussi les prairies fleuries chaudes et s\u00e8ches et r\u00e9colte le pollen des knauties (photo : \u00a9 Andr\u00e9 Rey).<\/em><\/p>\n<\/div><\/div><div class=\"et_pb_image_2 et_pb_image et_pb_module et_flex_module\"><span class=\"et_pb_image_wrap\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/igwildebiene.ch\/wp-content\/uploads\/2026\/09\/Megachile_ligniseca_F_Zuerich_2020_08_12_9_AR_4.jpg\" width=\"1500\" height=\"1011\" srcset=\"https:\/\/igwildebiene.ch\/wp-content\/uploads\/2026\/09\/Megachile_ligniseca_F_Zuerich_2020_08_12_9_AR_4.jpg 1500w, https:\/\/igwildebiene.ch\/wp-content\/uploads\/2026\/09\/Megachile_ligniseca_F_Zuerich_2020_08_12_9_AR_4-1280x863.jpg 1280w, https:\/\/igwildebiene.ch\/wp-content\/uploads\/2026\/09\/Megachile_ligniseca_F_Zuerich_2020_08_12_9_AR_4-980x661.jpg 980w, https:\/\/igwildebiene.ch\/wp-content\/uploads\/2026\/09\/Megachile_ligniseca_F_Zuerich_2020_08_12_9_AR_4-480x324.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) and (max-width: 1280px) 1280px, (min-width: 1281px) 1500px, 100vw\" class=\"wp-image-75\" \/><\/span><\/div><div class=\"et_pb_text_6 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module\"><div class=\"et_pb_text_inner\"><p><em>Photo : nicheuse dans le bois mort elle aussi, Megachile ligniseca se rencontre le long des lisi\u00e8res. Elle r\u00e9colte le pollen de fleurs de plusieurs familles de plantes, dont les knauties (photo : \u00a9 Andr\u00e9 Rey).<\/em><\/p>\n<\/div><\/div><div class=\"et_pb_text_7 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module\"><div class=\"et_pb_text_inner\"><p><strong>R\u00e9sultats 2025<\/strong><br \/>En 2025, la pr\u00e9sence de l\u2019esp\u00e8ce cible principale a pu \u00eatre confirm\u00e9e lors de relev\u00e9s compl\u00e9mentaires. <\/p>\n<\/div><\/div><div class=\"et_pb_text_8 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module\"><div class=\"et_pb_text_inner\"><p><strong>Financement<\/strong><br \/>Ce projet est soutenu par le canton de Nidwald. La recherche de fonds suppl\u00e9mentaires pour ce projet est en cours.<\/p>\n<\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1361","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/igwildebiene.ch\/fr\/wp-json\/wp\/v2\/pages\/1361","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/igwildebiene.ch\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/igwildebiene.ch\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/igwildebiene.ch\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/igwildebiene.ch\/fr\/wp-json\/wp\/v2\/comments?post=1361"}],"version-history":[{"count":3,"href":"https:\/\/igwildebiene.ch\/fr\/wp-json\/wp\/v2\/pages\/1361\/revisions"}],"predecessor-version":[{"id":2092,"href":"https:\/\/igwildebiene.ch\/fr\/wp-json\/wp\/v2\/pages\/1361\/revisions\/2092"}],"wp:attachment":[{"href":"https:\/\/igwildebiene.ch\/fr\/wp-json\/wp\/v2\/media?parent=1361"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}