Ecological patterns of Costa Rican myxomycetes

Rojas, Carlos; Valverde, Randall; Stephenson, Steven L.; Vargas, Maribel

doi:10.1016/j.funeco.2009.08.002

Cited by 13 publications

(5 citation statements)

References 15 publications

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“…This result is not contradictory, and actually seems to indicate that the environmental parameters evaluated might not have a strong effect on the occurrence of the myxomycetes in the study areas when they are considered as a group, but are reflected when particular species are evaluated. A similar pattern was recently observed for the species assemblages present in different forest types in Costa Rica (Rojas et al 2009). This observation seems to indicate the level of resolution at which ecological patterns for different taxonomic levels can be observed.…”

Section: Discussionsupporting

confidence: 88%

“…Recent data indicates that the relative abundance of some species differs among forest types in Costa Rica (Rojas et al 2009), which very likely has an impact on the density distribution of airborne spores for different myxomycete taxa in different parts of the country. If this is the case, species that are better represented in a given forest type would have a higher probability of reaching suitable substrates within that same forest type than to be dispersed successfully to other forest types.…”

Section: Discussionmentioning

confidence: 99%

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Macroecology of high-elevation myxomycete assemblages in the northern Neotropics

2010

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A number of recent studies have been directed towards developing a more complete understanding of myxomycete ecology throughout the world. However, the lack of comparative data obtained using standard methodologies makes the results of these studies somewhat speculative. The objective of this investigation was to examine the evidence of macroecological patterns in myxomycete assemblages in high-elevation areas of the northern Neotropics. For this, a series of study areas in Mexico, Guatemala, and Costa Rica, as well as two external study areas (one in the United States and the other in Thailand), were selected to compare the diversityenvironment relationships exhibited by myxomycetes. Altogether, the 2592 moist chamber cultures prepared yielded a total of 1377 myxomycete records, representing 89 different species. A trend of decreasing species richness with decreasing latitude was observed for the species assemblages associated with the study areas in the Neotropics. As latitude increased, species assemblages in the Neotropical study areas became increasingly similar to the temperate study area. The difference in species richness between study areas in Mexico and Thailand, along with the results obtained for a series of macroclimatic patterns evaluated in the study areas of the Neotropical region, suggests that forest structure plays an important role in the structure of myxomycete assemblages. In contrast, soil chemical characteristics and the pH of the substrates present seem to be indirectly related to the diversity estimators used for analysis, suggesting that they are probably more important at a smaller ecological scale.

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Section: Discussionsupporting

confidence: 88%

Section: Discussionmentioning

confidence: 99%

Macroecology of high-elevation myxomycete assemblages in the northern Neotropics

2010

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“…For instance, most of the Neotropical studies have found a pattern of decreasing diversity with increasing elevation (Stephenson et al 1999, 2004; Schnittler and Stephenson 2000; Rojas and Stephenson 2008). Even comprehensive analyses such as the work of Rojas et al (2010) have found elevation to explain most of the variations associated with the distribution of abundant species in Costa Rica. However, in most of these cases, elevational ranges have been broad, across vegetational units and not necessarily comparable.…”

Section: Introductionmentioning

confidence: 99%

Does elevation influence the distributional patterns of tropical myxomycetes? A case study in Costa Rica

2016

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In order to test the hypothesis that elevation may be an important factor accounting for the distribution of myxomycetes in tropical forests, this project was designed and conducted in Costa Rica. Two lower elevational belts were selected for this work due to their floristic and structural resemblance. Using the moist chamber technique, 40 different sites located in four different transects in two different macroclimatic regions were surveyed using three substrates during the rainy and the dry periods of 2014 and 2015. The results showed a lack of differences in diversity-based estimators according to elevation using different approaches and taxonomic differences were found across transects, collecting periods and substrates but not in relation with elevation either. Our results suggest that when increased spatial sampling resolution is implemented and floristic elements are common, elevation may not be as important of a factor in shaping the distribution of myxomycetes in tropical forests as commonly believed.

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“…In another related studies in Neotropics i.e. Costa Rica (see Rojas et al 2010Rojas et al , 2011 and El Salvador (Rojas et al 2013) the moist chamber and field survey was combined to establish comprehensive diversity assessments of myxomycetes. Therefore, integration of both moist chamber technique and fieldwork component is recommended to have sufficient results about myxomycetes diversity.…”

Section: Moist Chamber Techniques As a Methods To Evaluate Myxomycete mentioning

confidence: 99%

Occurrence of leaf litter inhabiting myxomycetes from lowland forest patches of Northern and Central Vietnam

et al. 2019

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During the last years, much of the diversity studies of myxomycetes (plasmodial slime molds) have been concentrated mostly in the Southern region of Vietnam. Moreover, information on leaf litter inhabiting myxomycetes for the country is still in scarcity. Hence, this study aims to assess the occurrence and distribution of leaf litter inhabiting myxomycetes in different forest types in the subtropical northern and coastal tropical monsoon central part of the country. Samples of aerial and ground leaf litter that were used to prepare moist chamber cultures in the laboratory were collected in (1) Ba Vi National Park, Ha Noi, (2) Ho Nui Coc, Thai Nguyen, and (3) coastal forest patches in Da Nang. A total of 24 species belonging to 10 genera, wherein the majority of these myxomycete species appeared abundantly (11 species) is reported for this study. Based on species richness, Ha Noi harbored the highest number of myxomycete species. Leaf litter inhabiting myxomycete communities between aerial and ground substrates shared a high level of similarity based on their species composition and relative abundance. Highest level of similarity of leaf litter inhabiting myxomycete asssemblages is also reported between Ha Noi and Da Nang (CC = 0.78, PS = 0.56). This research study is the first step in understanding the complex myxomycete ecology of leaf inhabiting myxomycetes and would help filling now the large gap in one of the unexplored tropical areas of the world.

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Ecological patterns of Costa Rican myxomycetes

Cited by 13 publications

References 15 publications

Macroecology of high-elevation myxomycete assemblages in the northern Neotropics

Macroecology of high-elevation myxomycete assemblages in the northern Neotropics

Does elevation influence the distributional patterns of tropical myxomycetes? A case study in Costa Rica

Occurrence of leaf litter inhabiting myxomycetes from lowland forest patches of Northern and Central Vietnam

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