Benthos of a seasonally-astatic, saline, soda lake in Mexico

Alcocer, Javier; Escobar, Elva; Lugo, Alfonso; Oseguera, Luis A.

doi:10.1007/978-94-017-2934-5_26

Cited by 8 publications

(6 citation statements)

References 17 publications

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“…Even though, two macroinvertebrate diversity and plant cover studies found aquatic insect species richness and abundance to be affected by the amount of vegetation cover present (Batzer and Resh, 1992;DeSzalay and Resh, 2000), this study found no relationship between the two variables. Finally, water chemistry variables, such as pH and salinity, have been known to affect aquatic insect diversity (Courtney and Clements, 1998;Grillet, 1999;Alcocer et al, 2001), yet no significant differences were observed in this study between aquatic insect diversity and water temperature, pH, or salinity. It should be pointed out that average water temperature, salinity, and pH between the six pond types did not significantly differ.…”

Section: Comparison Of Aquatic Insect Communitiescontrasting

confidence: 53%

“…Many environmental factors can contribute to differences in aquatic insect diversity between ponds (e.g., Collinson et al, 1995;Gee et al, 1997;DeSzalay and Resh, 2000;Alcocer et al, 2001;Oertli et al, 2002). Several statistical analyses were conducted using SPSS 16.0 to determine if some of these environmental factors affected aquatic insect diversity within the study ponds.…”

Section: Statistical Analysesmentioning

confidence: 99%

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A comparison of aquatic insect communities between man-made and natural ponds

Whiteson

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Throughout history ponds have been created for a variety of reasons. A current goal in pond creation is to increase and maintain biodiversity. Until recently, reserve managers were unaware of how these man-made ponds compared to natural ponds in respect to their aquatic insect diversity. This study serves as the first comparison of aquatic insect communities between the man-made and natural ponds located at ESNERR, MLML, and BLM-Fort Ord public lands in Monterey County, California, USA. Environmental factors (pond size, age, hydroperiod, plant cover, and water chemistry) were evaluated to determine if they had an effect on aquatic insect diversity. Simpson's Diversity Index and similarity indices (Jaccard and Sorensen) were used to compare aquatic insect communities between different ponds. The environmental factors assessed in this study did not significantly affect aquatic insect diversity. However, the Simpson's Diversity Index revealed that the man-made ponds had a similar amount of aquatic insect diversity compared to the nearby natural ponds. In addition, the similarity indices showed that the man-made and natural study ponds were comparable in aquatic insect species richness and abundance. Specifically, there was a 90% similarity in aquatic insect diversity between the wildlife enhancement and nearby natural ponds. This study demonstrated that these man-made ponds are quite similar to natural ponds and serve as important habitats in conserving biodiversity. ACKNOWLEDGMENTS I appreciate ESNERR, MLML, and BLM-Fort Ord public lands for allowing me to study the aquatic insect communities residing their ponds. I am most grateful to Dr.

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Section: Comparison Of Aquatic Insect Communitiescontrasting

confidence: 53%

Section: Statistical Analysesmentioning

confidence: 99%

A comparison of aquatic insect communities between man-made and natural ponds

Whiteson

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“…They can become an abundant and diverse group in harsh environments (Oliver & Dillon, 1997). For example, Márquez-García et al (2009) report the presence of Chironomidae in saline water bodies of the southern Altiplano, and Alcocer et al (2001) for a saline lake of Central Mexico. In the wet pastures we studied, Chironomidae is one of the most abundant families of Insecta (CepedaPizarro et al, 2006b).…”

Section: Discussionmentioning

confidence: 99%

Invertebrates inhabiting temporary ponds found in the Tambo-Puquíos wet pasture (Andes of north-central Chile), and the physicochemical characteristics of their habitat

Cepeda-Pizarro

Pizarro-Araya

Morales

2015

Idesia

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The physical-chemical features of four temporary shallow ponds and their invertebrate fauna were studied during the summer months of three consecutive years. Invertebrate sampling was conducted by suction of pond water with a pump. From the physical-chemical point of view, the study ponds were heliotopic, mesotrophic and mesopoikilohaline microlimnotopes. Their thermal stratification is monomictic, with few degrees of difference in water temperature between surface and bottom. The chemical characteristics of pond water were in between those of freshwater and truly saline ponds. The study ponds exhibited high content of phosphate, Ca, and sulfate content, followed by fluoride, Fe, K, Mg, Cl, nitrate, and total suspended solids. They were low in bicarbonate and CN content. Apparently, the geochemical properties of the surrounding mountains play a role in the hydrochemistry of these water bodies. Total abundance per taxon was mostly low. We recorded five higher taxa. Cladocerans (e.g., Alona spp.), followed by dipterans (e.g., chironomid flies), and copepods (e.g., cyclopoids and harpactoids) were the dominant groups. Less abundant groups were amphipods (e.g., Hyperia spp.), and ostracods (e.g., Cyprididae). Some of the taxa reported in this work are recorded for first time in this type of habitat. Nevertheless, given the habitat characteristics, studies at finer taxonomic resolution are needed to search for site-specific genera or species. We obtained lower taxonomic richness compared to lotic systems found in the area. This result may be due to differences in the dynamics of abiotic conditions observed between the two habitats. The variability in abundance among ponds was high for most of the recorded taxa. This variability may be a reflection of the general condition of the wet pasture we studied, suggesting that the ponds are important sources of the high biodiversity found in these landscape units. As the wet pastures of the area are networked, also contribute to biodiversity of the entire mountain system. From this, it is clear that conservation strategies of Andean wet pastures need to include these small landscape units.Key words: zooplankton, macroinvertebrates, temporary ponds, arid Andes, aquatic fauna, lentic habitats. RESUMEN

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“…Levees, causeways and canals will clearly impede the free surface movement of water across the lake bed as observed in lakes Cuitzeo (Martínez-Pantoja et al 2002), Totolcingo, or El Carmen (Alcocer et al 1999). Direct physical disturbances such as mining drainage leads to total loss of the system, as occurred in Lake Texcoco (Alcocer and Williams 1996).…”

Section: Saline Lake Ecosystems (Sle)mentioning

confidence: 92%

An assessment of natural and human disturbance effects on Mexican ecosystems: current trends and research gaps

et al. 2012

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Mexico harbors more than 10% of the planet's endemic species. However, the integrity and biodiversity of many ecosystems is experiencing rapid transformation under the influence of a wide array of human and natural disturbances. In order to disentangle the effects of human and natural disturbance regimes at different spatial and temporal scales, we selected six terrestrial (temperate montane forests, montane cloud forests, tropical rain forests, tropical semi-deciduous forests, tropical dry forests, and deserts) and four aquatic (coral reefs, mangrove forests, kelp forests and saline lakes) ecosystems. We used semiquantitative statistical methods to assess (1) the most important agents of disturbance Electronic supplementary material The online version of this article (affecting the ecosystems, (2) the vulnerability of each ecosystem to anthropogenic and natural disturbance, and (3) the differences in ecosystem disturbance regimes and their resilience. Our analysis indicates a significant variation in ecological responses, recovery capacity, and resilience among ecosystems. The constant and widespread presence of human impacts on both terrestrial and aquatic ecosystems is reflected either in reduced area coverage for most systems, or reduced productivity and biodiversity, particularly in the case of fragile ecosystems (e.g., rain forests, coral reefs). In all cases, the interaction between historical human impacts and episodic high intensity natural disturbance (e.g., hurricanes, fires) has triggered a reduction in species diversity and induced significant changes in habitat distribution or species dominance. The lack of monitoring programs assessing before/after effects of major disturbances in Mexico is one of the major limitations to quantifying the commonalities and differences of disturbance effects on ecosystem properties.

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Benthos of a seasonally-astatic, saline, soda lake in Mexico

Cited by 8 publications

References 17 publications

A comparison of aquatic insect communities between man-made and natural ponds

A comparison of aquatic insect communities between man-made and natural ponds

Invertebrates inhabiting temporary ponds found in the Tambo-Puquíos wet pasture (Andes of north-central Chile), and the physicochemical characteristics of their habitat

An assessment of natural and human disturbance effects on Mexican ecosystems: current trends and research gaps

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