Dung beetles and their ecological functions in three agroforestry systems in the Lacandona rainforest of Mexico

Santos-Heredia, Carolina; Andresen, Ellen; Zárate, Diego A.; Escobar, Federico

doi:10.1007/s10531-018-1542-x

Cited by 36 publications

(25 citation statements)

References 54 publications

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“…Sin embargo, los ritmos estacionales no influyen en la presencia o ausencia de algunas especies de la subfamilia, sobre todo en aquellas que presentan hábitos generalistas, ya que pueden hacer uso de una mayor oferta de recursos (Halffter & Favila 1993), como ocurre con las cuatro especies dominantes en el presente trabajo, las cuales se distribuyen ampliamente en la región y se han recolectado con distintos tipos de atrayentes (Navarrete & Halffter 2008, Sánchez-de-Jesús et al 2016, Santos-Heredia et al 2018.…”

Section: Resultados Y Discusiónunclassified

“…Los estudios sobre los Scarabaeinae en el estado de Chiapas han incrementado de forma considerable durante los últimos 15 años, situación que ha permitido tener un conocimiento más adecuado de la fauna de escarabajos que habita en la región. La mayoría de los trabajos analizan la composición y estructura de los ensambles en áreas naturales protegidas federales y sus zonas de influencia, principalmente de la región selva Lacandona (Navarrete & Halffter 2008a, Sánchez-de-Jesús et al 2016, Santos-Heredia et al 2018) y de la región selva Zoque (Arellano et al 2008, 2013, Blas-López & Gómez 2009; mientras que otros proporcionan nuevos datos de distribución geográfica o descripción de nuevas especies (Gómez & Chamé-Vázquez 2003, Morales et al 2004, Chamé-Vázquez & Gómez 2005, Navarrete & Halffter 2008b, Halffter & Halffter 2009, Sánchez-Hernández et al 2017. No obstante, todavía existen extensas zonas del territorio chiapaneco poco exploradas, entre las cuales destacan la mayoría de las áreas naturales protegidas de carácter estatal, cuyo conocimiento faunístico es nulo.…”

Section: Introductionunclassified

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Escarabajos coprófagos (Coleoptera: Scarabaeidae: Scarabaeinae) en la reserva El Zapotal, Chiapas, México

2019

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El Centro Ecológico y Recreativo El Zapotal (CEREZ) se caracteriza por presentar uno de los últimos remanentes de selva mediana en la región central de Chiapas, México. Sin embargo, el conocimiento de algunos grupos taxonómicos de la reserva no es del todo adecuado. En este trabajo se analiza la composición y estructura, así como la distribución temporal de los escarabajos coprófagos que habitan en el CEREZ. Se realizaron muestreos mensuales entre febrero de 2013 y enero de 2014 utilizando trampas de caída cebadas con estiércol de seis especies de mamíferos que se mantienen en cautiverio al interior del Zoológico Miguel Álvarez del Toro (ZooMAT). Se presenta una lista anotada de 22 especies agrupadas en 12 géneros y seis tribus de Scarabaeinae. Onthophagus anthracinus, Canthon femoralis, Onthophagus landolti y Copris laeviceps aportan el 89.7% de la abundancia total. La curva de rarefacción muestra una tendencia asintótica, con un 92% de completitud. La fauna capturada muestra una marcada distribución temporal (p < 0.01), observando los valores más altos de riqueza y abundancia durante los meses de la temporada lluviosa. Los registros representan el 7.53% de la diversidad conocida en México y el 18.2% de las especies reportadas en el estado de Chiapas. A pesar de representar un pequeño remanente de selva tropical y de la constante presión antrópica generada por la zona urbana, El Zapotal conserva una fauna de escarabajos coprófagos representativa a nivel regional, resaltando la importancia de la reserva como refugio de especies.

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Section: Resultados Y Discusiónunclassified

Section: Introductionunclassified

Escarabajos coprófagos (Coleoptera: Scarabaeidae: Scarabaeinae) en la reserva El Zapotal, Chiapas, México

2019

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“…This suggests that the arrival and establishment of species depends on environmental factors 29,53 , and could result in ecological redundancy in dung beetle assemblages 28, 54,55 . Also, in tropical forest the degradation and loss of natural habitats decreases the functional diversity of dung beetles 26,27,56 , which has consequences on their ecosystem functions 57 . However, in our study the lack of difference in functional diversity metrics between forest and grassland sites suggest that functional diversity of dung beetle assemblages is not affected by grazing in grassland patches.…”

Section: Discussionmentioning

confidence: 99%

Assembly mechanisms of dung beetles in temperate forests and grazing pastures

Ortega-Martínez

Moreno

Rios-Díaz

et al. 2020

Sci Rep

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the role of deterministic and stochastic mechanisms in community assembly is a key question in ecology, but little is known about their relative contribution in dung beetle assemblages. Moreover, in human modified landscapes these mechanisms are crucial to understand how biodiversity can be maintained in productive agroecosystems. We explored the assembly mechanisms driving dung beetle assemblages in forests and grazed grassland patches, and assessed the role of dung availability, soil hardness and moisture, elevation and land use heterogeneity as environmental predictors of functional diversity. to determine the underlying assembly mechanisms, we estimated functional diversity metrics (functional richness, evenness and divergence) and their departure from the predicted values by null models. We also used GLMs to assess the influence of environmental variables on functional diversity. in most cases, stochastic processes prevailed in structuring dung beetle assemblages and, consequently, environmental variables were not good predictors of dung beetle functional diversity. However, limiting similarity was found as a secondary mechanism with an effect on dung beetle assemblages in grasslands. Our results highlight the importance of stochastic processes that may reflect a metacommunity dynamic. therefore, restoring landscape connectivity might be more important than habitat quality for the conservation of these functionally diverse beetle assemblages. Community assembly theory provides a conceptual foundation about the mechanisms that determine species composition of local assemblages 1,2 , and this background becomes especially relevant for studies concerning the ecological consequences of environmental contemporary changes. For example, results from a recent study have made it possible to improve our understanding of biological invasions, a global issue that is critical in ecology and conservation 3. However, an important remaining issue is to unravel how current anthropogenic changes to the environment, such as land use change and agricultural production can modify the assembly mechanisms that shape the structure and composition of local communities 4. Human activities have contributed substantially to the loss of species and degradation of ecosystems 5,6 , generating impacts on ecological communities 7. Therefore, identifying the drivers of community assembly in human modified landscapes is an urgent challenge. Both deterministic and stochastic mechanisms are important in assembling biological communities. The main deterministic mechanisms driving community assembly are limiting similarity and environmental filtering 8-10. If the local community is formed by non-redundant species, its trait diversity will be high (trait overdispersion) as a result of strong ecological interactions, and community assembly is considered to be driven by a limiting similarity mechanism due to competition 8. On the contrary, the environmental filtering mechanism (the abiotic filter) structures local communities through environmental r...

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“…The presence of undisturbed natural habitats in these landscapes has clear benefits for local biodiversity (Gibson et al, 2011). But in systems where undisturbed areas are scarce, forests under some degree of anthropogenic disturbance can help buffer the impact of more intensely managed land (Bhagwat et al, 2008;Santos-Heredia et al, 2018). Furthermore, the benefits extracted from these forests might be crucial for achieving sustainable landscape configurations (McNeely & Schroth, 2006;Nobre et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

“…The feeding specialisations seen in some butterfly species are less common in dung beetles, for example. On the other hand, the involvement of dung beetles in ecosystem processes is better studied, including their impact on nutrient cycling, bioturbation, and secondary seed dispersal (Nichols et al, 2008;Santos-Heredia et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Patterns of biodiversity response along a gradient of forest use in Eastern Amazonia, Brazil

Milheiras

Guedes²,

Silva

et al. 2020

PeerJ

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The preservation of tropical forests is increasingly at risk, including forests located within human-modified landscapes that retain high conservation value. People modify and interact with these landscapes through a wide range of uses. However, our knowledge of how different forest uses affect biodiversity is limited. Here, we analyse the responses of different taxa to four distinct categories of forest management, namely oldgrowth forest, Brazil nut extraction areas, reduced impact logging areas, and eucalyptus plantations. Within six independent replicates of each category, we sampled three taxa (fruit-feeding butterflies, dung beetles, and trees) in eastern Amazonia. Forests under moderate use (Brazil nut extraction and reduced-impact logging) had similar, albeit slightly lower, diversity levels relative to old-growth forests, while communities in plantations were significantly less diverse. Only 4%, 20%, and 17%, of the sampled butterfly, dung beetle, and tree species, respectively, were restricted to old-growth forests. This study provides further empirical evidence of the importance of old-growth forest conservation in the context of human-modified landscapes. It also suggests that landscape matrices integrating forest uses at varying intensities are well positioned to reconcile biodiversity conservation with the production of goods that support local livelihoods.

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Dung beetles and their ecological functions in three agroforestry systems in the Lacandona rainforest of Mexico

Cited by 36 publications

References 54 publications

Escarabajos coprófagos (Coleoptera: Scarabaeidae: Scarabaeinae) en la reserva El Zapotal, Chiapas, México

Escarabajos coprófagos (Coleoptera: Scarabaeidae: Scarabaeinae) en la reserva El Zapotal, Chiapas, México

Assembly mechanisms of dung beetles in temperate forests and grazing pastures

Patterns of biodiversity response along a gradient of forest use in Eastern Amazonia, Brazil

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