02372nas a2200217   4500008004100000245012900041210006900170300001400239490000700253520156600260653002001826653001901846653001701865653002601882653001701908100002201925700002001947700002301967700002601990856013802016       2007                        eng d00aInstability of copronecrophagous beetle assemblages (Coleoptera: Scarabaeinae) in a mountainous tropical landscape of Mexico0 aInstability of copronecrophagous beetle assemblages Coleoptera S  a1397-14070 v363 aWe analyzed changes over time in species composition and functional guild structure (temporal beta diversity) for natural assemblages and those modiÞed by humans in a fragmented, tropical mountain landscape. The assemblages belong to cloud forests (the original vegetation type), secondary forests, traditional shaded coffee plantations, commercial shaded coffee plantations, and a cattle pasture. Copronecrophagous beetles, subfamily Scarabaeinae (Insecta: Coleoptera: Scarabaeidae), were used as the indicator group. This group has been used in previous studies and other tropical forests and has been found to be a good indicator of the effects of anthropogenic change. For each assemblage, we compared samples that were collected several years apart. Changes were found in species composition, order of abundance, and in the proportion that a given species is present in the different functional groups. The changes that occurred between samplings affected the less abundant species in the cloud forest and in the pasture. In the other vegetation types, both abundant and less abundant species were affected. Their order of abundance and proportion in the different guilds also changed. This study shows that, although landscape richness remains relatively constant, richness at the local level (alpha diversity) changes notably even over short lapses of time. This could be a characteristic of landscapes with intermediate degrees of disturbance (such as those that have been partially modiÞed for human use), where assemblage composition is very fluid. 10aalpha diversity10abeta diversity10acloud forest10afragmented landscapes10aScarabaeinae1 aHalffter, Gonzalo1 aPineda, Eduardo1 aArellano, Lucrecia1 aS., Federico, Escobar  uhttps://scarabnet.myspecies.info/instability-copronecrophagous-beetle-assemblages-coleoptera-scarabaeinae-mountainous-tropical-landsc00586nas a2200145   4500008004100000245009800041210006900139300001200208490000700220653001900227653002900246100002100275700002200296856012200318       1999                        eng d00aComparison of Mediterranean Dung Beetle (Coleoptera: Scarabaeoidae) in Cattle and Rabbit Dung0 aComparison of Mediterranean Dung Beetle Coleoptera Scarabaeoidae  a420-4240 v2810abeta diversity10aspecies richness mammals1 aGalante, Eduardo1 aCartagena, Carmen  uhttps://scarabnet.myspecies.info/comparison-mediterranean-dung-beetle-coleoptera-scarabaeoidae-cattle-and-rabbit-dung