Cerrar

No. de sistema: 000059079

LDR _ _ 00000nab^^22^^^^^za^4500
008 _ _ 181105m20189999xx^^r^p^^^^^^z0^^^a0eng^d
040 _ _ a| ECO
c| ECO
043 _ _ a| ncgt---
044 _ _ a| xx
245 0 0 a| Recent low levels of differentiation in the native Bombus ephippiatus (Hymenoptera: Apidae) along two Neotropical mountain-ranges in Guatemala
506 _ _ a| Disponible para usuarios de ECOSUR con su clave de acceso
520 1 _ a| Recent anthropogenic fragmentation has led to population differentiation threatening viability of many species, including species specialized on mountainous ecosystems. Bombus ephippiatus, a widespread species mostly found in mountains in the Neotropics, seems to use the highlands as island, and deforested lowland areas may represent barriers to their dispersal, leading to isolation and potentially loss of genetic diversity. Yet, lack of knowledge of its population structure does not allow adequate management and conservation. To fill this knowledge gap, we assessed the population structure and inferred dispersion of B. ephippiatus in two mountain-ranges in Guatemala (Volcanic Chain and Sierra de las Minas). This region is characterized by high topographic variation and considerable deforestation strain. We analyzed the effects of elevation and land-use on genetic differentiation of B. ephippiatus populations and inferred its demography in the region. Our results suggest that B. ephippiatus is able to disperse long distances across most landscape types, reflected by its high genetic diversity, high effective population size, considerable gene flow, low population differentiation, as well as the lack of isolation by distance. Hence, B. ephippiatus may be a resilient species for the provision of pollination services. However, we detected a subtle divergence of B. ephippiatus into two clusters, of which Sierra de las Minas has been identified as a regional hotspot of genetic and species endemism. Yet, differentiation is very recent and hence likely caused by lowland deforestation. The combined effects of current forest cover and elevation partially explain the observed subtle patterns of differentiation suggesting that the maintenance of suitable habitat is crucial to ensure population connectivity of this keystone pollinator.
533 _ _ a| Reproducción electrónica en formato PDF
538 _ _ a| Adobe Acrobat profesional 6.0 o superior
650 _ 4 a| Bombus ephippiatus
650 _ 4 a| Abejorros
650 _ 4 a| Uso de la tierra
650 _ 4 a| Análisis demográfico
650 _ 4 a| Fragmentación de hábitats
651 _ 4 a| Guatemala
700 1 _ a| Landaverde González, Patricia
700 1 _ a| Baltz, Lucie M.
e| coaut.
700 1 _ a| Escobedo Kenefic, Natalia
e| coaut.
700 1 _ a| Mérida Rivas, Jorge Alfredo
e| coaut.
700 1 _ a| Paxton, Robert J.
e| coaut.
700 1 _ a| Husemann, Martin
e| coaut.
773 0 _
t| Biodiversity and Conservation
g| Vol. 27, no. 13 (November 2018), p. 3513-3531
x| 1572-9710
900 _ _ a| Solicítelo con su bibliotecario/a
901 _ _ a| Artículo con arbitraje
902 _ _ a| BG / MM / GOG
904 _ _ a| Octubre 2018
905 _ _ a| Artecosur
905 _ _ a| Artfrosur
905 _ _ a| Biblioelectrónica
LNG eng
Cerrar
*Solicítelo con su bibliotecario/a
Recent low levels of differentiation in the native Bombus ephippiatus (Hymenoptera: Apidae) along two Neotropical mountain-ranges in Guatemala
Landaverde González, Patricia (autor)
Baltz, Lucie M. (autor)
Escobedo Kenefic, Natalia (autor)
Mérida Rivas, Jorge Alfredo (autor)
Paxton, Robert J. (autor)
Husemann, Martin (autor)
Nota: Disponible para usuarios de ECOSUR con su clave de acceso
Contenido en: Biodiversity and Conservation. Vol. 27, no. 13 (November 2018), p. 3513-3531. ISSN: 1572-9710
No. de sistema: 59079
Tipo: - Artículo con arbitraje
PDF
  • Consulta (1)




Inglés

"Recent anthropogenic fragmentation has led to population differentiation threatening viability of many species, including species specialized on mountainous ecosystems. Bombus ephippiatus, a widespread species mostly found in mountains in the Neotropics, seems to use the highlands as island, and deforested lowland areas may represent barriers to their dispersal, leading to isolation and potentially loss of genetic diversity. Yet, lack of knowledge of its population structure does not allow adequate management and conservation. To fill this knowledge gap, we assessed the population structure and inferred dispersion of B. ephippiatus in two mountain-ranges in Guatemala (Volcanic Chain and Sierra de las Minas). This region is characterized by high topographic variation and considerable deforestation strain. We analyzed the effects of elevation and land-use on genetic differentiation of B. ephippiatus populations and inferred its demography in the region. Our results suggest that B. ephippiatus is able to disperse long distances across most landscape types, reflected by its high genetic diversity, high effective population size, considerable gene flow, low population differentiation, as well as the lack of isolation by distance. Hence, B. ephippiatus may be a resilient species for the provision of pollination services. However, we detected a subtle divergence of B. ephippiatus into two clusters, of which Sierra de las Minas has been identified as a regional hotspot of genetic and species endemism. Yet, differentiation is very recent and hence likely caused by lowland deforestation. The combined effects of current forest cover and elevation partially explain the observed subtle patterns of differentiation suggesting that the maintenance of suitable habitat is crucial to ensure population connectivity of this keystone pollinator."


  • Adobe Acrobat profesional 6.0 o superior