Gonzalo Halffter’s research works with citations and reads, including: In Memoriam Pedro Reyes Castillo. Gonzalo Halffter has expertise in. Gonzalo Halffter, Mexican entomologist. Red de Ecoetología; Instituto de Ecología A.C. – Carretera Antigua a Coatepec – XALAPA. Gonzalo Halffter . We have been addressing these questions with a strategy ( Halffter ) based on four .. , Arellano and Halffter , Arellano et al.
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Gonzalo Halffter – Wikispecies
The pasture, comprised mainly of species belong to genera Paspalum and Panicumhad very few trees belonging to the genera Liquidambar and Quercuswhich gonzao spared to provide shade for the cattle. Biogeographical and ecological factors affecting the altitudinal variation of gonzalk communities of coprophagous beetles Coleoptera: Scarabaeinaebeta diversityalpha diversityfragmented landscapescloud forestPalabras clave: Observed species richness varied notably in gonzalp cloud forest and in the commercial shaded coffee plantation for both sampling years, but not at the other study sites Fig.
Scarabaeidae are particularly sensitive to environmental change and are a good indicator group because of their biological and ecological attributes, as well as their natural history and the ease with which they can be sampled KleinHanski and CambefortHalffter and Favila The changes that occurred between samplings affected the less abundant species in the cloud forest and in the pasture.
As such, those conditions are distinct to those of the glnzalo surveyed in this study. One way of learning about these dynamics and the level of variation in an assemblage is to evaluate whether its members species continue to be present over time and whether their abundance remains constant Connell and SousaMagurran and Philip Vaz de Mello, F.
As for abundance, the two types of forest are the most variable, and the pasture is the most stable.
The latter authors found that the notable differences that Klein found between the intact rain forest, the fragments, and the bare areas decreased markedly over time, and there was a substantial recovery of species richness and abundance. He earned his PhD in Sciences in from the National School of Biological Sciences of the National Polytechnic Institute of Mexico, an institution at which he has served as both chair and head of the Biology and Zoology Departments and where he has been an emeritus lecturer since However, the results indicating the high degree of representation of the necrophages in the disturbed habitats supports the idea that they are a useful tool for evaluating the “health status” of sites.
Effects of forest fragmentation on dung and carrion beetle communities in central Amazonia. The commercial shaded coffee plantation similar to commercial shaded polyculture coffee plantations, under the classification proposed by Moguel and Toledohas a canopy that is m high.
The transformation of the cloud forest into agricultural fields was greatest from the end of the 19th century to the midth century with the peak in coffee production Challenger Scarabaeidae na Amazonia central.
The alpha diversity of each habitat for each year was evaluated using species accumulation curves and species richness estimates.
Dung beetles of the Kibale forest, Uganda: This could be a characteristic of moderately disturbed landscapes where the assemblages are very flexible. Four species were only recorded in one of the sampling years Table 1. Dung and carrion beetles in tropical rain forest fragments and agricultural habitats at Los Tuxtlas, Mexico.
Entrevista Gonzalo Halffter
Effect of forest fragmentation on dung beetle communities and functional consequences for plant regeneration.
As such, the goal of this research was to estimate the changes over time in beetle assemblages in an anthropogenic alteration gradient. This indicates alpha diversity never hapffter the magnitude of accumulated diversity over time in the landscape. We are not aware of any published information in this regard, but we have data from a study we are currently preparing about Scarabaeinae G.
For commercial re-use, please contact journals. This “Cited halfftfr count includes citations to the following articles in Scholar. This recovery is not immediate the short-term effect of deforestation is devastating but does occur in a few years. There are few studies that have addressed the analysis of species diversity for copronecrophagous beetles at different times in tropical forests Spector and AyzamaQuinteroQuintero and Roslin Carmen Huerta Instituto de Ecologia A. Biology International Special issue 36, This habitat was the richest in species and had all but three of those found in the cloud forest: Tropical rain forests have rich assemblages of Scarabaeinae with a complex ecological structure.
Entrevista Gonzalo Halffter – video dailymotion
Altitudinal variation of dung beetle Scarabaeidae: Frog, gonzaalo, and dung beetle diversity in the cloud forest and coffee agroecosystems of Veracruz, Mexico. In the survey Howden and Howdengoonzalo species were found, 9 gnzalo which had been collected in ; D. A strategy for measuring landscape biodiversity G Halffter Biology International Special issue 36, Composition was only stable in the pasture, where species richness was notably lower. He has been recognized with numerous distinctions throughout his career including the Special Award of Recognition from the United States National Committee for Man and the Biospherethe official decoration of the French Order of Meritthe status of emeritus lecturer at the National Polytechnic Institutethe Alfonso L.
To detect those guilds for which frequency of appearance differed by sampling year, we subdivided the contingency tables and reanalyzed the data with the same test Zar Co-authors View all Claudia E. Disturbance frequency and community stability in native tallgrass prairie. The most common species in the canopy belong to the genera IngaGrevilleaCitrusand Perseaand there are also some Platanus mexicanaGonzwloand Cupressus.
Two gonalo Coprophanaeus telamon and Phanaeus endymion were moderately abundant in this habitat. We are not referring to the other species given that they are typical of habitats where we did not sample during this study. We analyzed changes over time in species composition and functional guild structure temporal beta diversity for natural assemblages and those modified by humans in a fragmented, tropical mountain landscape. In the secondary forest at T1, the accumulation curve was close to leveling off, and in the other three cases, the sampling effort was insufficient.
Avaliacaodoimpactodafragmentacaoda floresta sobre Scarabaeinae Coleoptera: An ecological and evolutive approach. Rapid turnover and edge effects in dung beetle assemblages Scarabaeidae at a Bolivian neotropical forest-savana ecotone. The same number of species was never recorded for the same habitat.