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No. de sistema: 000025947

LDR _ _ 00000nab^^22^^^^^za^4500
008 _ _ 120621m20129999xx^^r^p^o^^^^z0^^^a0eng^d
040 _ _ a| ECO
c| ECO
043 _ _ a| n-mx-cp
044 _ _ a| xx
100 1 _ a| Caballero Pérez, Ubaldo
c| Mtro.
e| autor
245 1 0 a| High diversity beetle assemblages attracted to carrion and dung in threatened tropical oak forests in Southern Mexico
506 _ _ a| Disponible para usuarios de ECOSUR con su clave de acceso
520 1 _ a| Despite high diversity levels of beetles inhabiting dung and carcasses, very few studies have attempted a comparative assessment of copro-necrophile beetle communities in relation to spatio-temporal variations, particularly in the tropics where the vast majority of beetles occur. We compared beetle assemblages attracted to pads of cattle dung and rat carcasses in four contrasting vegetation types associated with oak forest. In a total of 52 transects including 3,952 dung pad days and 2,600 carcass-trap days we recorded 14,989 beetles representing 406 species and 33 families. Necrophiles (323 species and 33 families) were considerably more diverse than coprophiles (172 species and 16 families). Staphylinidae were taxonomically and numerically dominant, comprising 45% of species and 66% of individuals, respectively. Species estimators (Chao 2) suggested that the observed beetle richness represented 68% of coprophile and 56% of necrophile species richness, with rare species constituting the majority of the species: singletons and doubletons = 89 species (52%) of coprophiles and 166 species (51%) of necrophiles. Beetle assemblages varied in diversity and composition as regards to vegetation type and season: samples from less disturbed vegetation types (continuous oak forest and ravines) had higher beetle diversity, and a strong seasonality effect was recorded for necrophiles, but not for coprophiles. In addition, an indicator value analysis (IndVal), showed that relatively preserved vegetation types recorded more indicator species as compared to disturbed sites. Our studies clearly demonstrates that the least fragmented oak forest and ravine are the most valuable areas for necrophile and coprophile beetles in Neotropical Mexico, especially for specialist beetles.
530 _ _ a| Disponible en línea
533 _ _ a| Reproducción electrónica en formato PDF
538 _ _ a| Adobe Acrobat profesional 6.0 o superior
650 _ 4 a| Escarabajos
650 _ 4 a| Robles
650 _ 4 a| Paisajes fragmentados
651 _ 4 a| Reserva Biologica Cerro Hueitepec, San Cristóbal de Las Casas (Chiapas, México)
700 1 _ a| León Cortés, Jorge Leonel
e| autor
773 0 _
t| Journal of Insect Conservation
g| Vol. 16, no. 4 (2012), p. 537-547
x| 0378-1844
902 _ _ a| GOG / MM
904 _ _ a| Junio 2012
905 _ _ a| Artecosur
905 _ _ a| Artfrosur
905 _ _ a| Biblioelectrónica
LNG eng
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High diversity beetle assemblages attracted to carrion and dung in threatened tropical oak forests in Southern Mexico
Caballero Pérez, Ubaldo (autor)
León Cortés, Jorge Leonel (autor)
Nota: Disponible en línea
Disponible para usuarios de ECOSUR con su clave de acceso
Contenido en: Journal of Insect Conservation. Vol. 16, no. 4 (2012), p. 537-547. ISSN: 0378-1844
No. de sistema: 25947
Tipo: Artículo
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"Despite high diversity levels of beetles inhabiting dung and carcasses, very few studies have attempted a comparative assessment of copro-necrophile beetle communities in relation to spatio-temporal variations, particularly in the tropics where the vast majority of beetles occur. We compared beetle assemblages attracted to pads of cattle dung and rat carcasses in four contrasting vegetation types associated with oak forest. In a total of 52 transects including 3,952 dung pad days and 2,600 carcass-trap days we recorded 14,989 beetles representing 406 species and 33 families. Necrophiles (323 species and 33 families) were considerably more diverse than coprophiles (172 species and 16 families). Staphylinidae were taxonomically and numerically dominant, comprising 45% of species and 66% of individuals, respectively. Species estimators (Chao 2) suggested that the observed beetle richness represented 68% of coprophile and 56% of necrophile species richness, with rare species constituting the majority of the species: singletons and doubletons = 89 species (52%) of coprophiles and 166 species (51%) of necrophiles. Beetle assemblages varied in diversity and composition as regards to vegetation type and season: samples from less disturbed vegetation types (continuous oak forest and ravines) had higher beetle diversity, and a strong seasonality effect was recorded for necrophiles, but not for coprophiles. In addition, an indicator value analysis (IndVal), showed that relatively preserved vegetation types recorded more indicator species as compared to disturbed sites. Our studies clearly demonstrates that the least fragmented oak forest and ravine are the most valuable areas for necrophile and coprophile beetles in Neotropical Mexico, especially for specialist beetles."


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