Does habitat loss affect tropical myxomycetes?

Alvarado, Carlos; Doss, Robin G.

doi:10.5943/mycosphere/5/5/11

Cited by 8 publications

(5 citation statements)

References 3 publications

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“…Ecological niches were applied as the main theoretical concept for myxomycete distribution studies (Soberón 2007, Broennimann et al 2012) using habitat and microhabitat as its describing parameters. Even though macroclimate and habitat limits the myxomycete distribution, there is strong evidence that microhabitat availability is the factor strongly affecting their species distribution (Rojas and Doss 2014).…”

Section: Introductionmentioning

confidence: 99%

Myxomycete communities occurring in fragmented forest patches in two municipalities of Laguna, Philippines

et al. 2018

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In spite of the increasing number of myxomycete studies in the tropical Southeast Asia over the last decades, many forest patches are still left unexplored for the region, in particular in the Philippine archipelago. Thus, an assessment of myxomycete diversity, occurrence, and composition was carried out in forest fragments from two municipalities of the province of Laguna, Philippines. From the 12 established 5 m × 5 m plots, a total of 240 moist chamber cultures were prepared for this study and yielded 42 myxomycete species belonging to 14 genera. Rarefaction curves and several heterogeneity indices revealed higher species diversity in Los Baños than in Calauan. Moreover, the taxonomic diversity index also showed that the taxonomic diversity of myxomycete in Los Baños is more intuitively diverse than in Calauan. In terms of community analysis between the two municipalities, it showed that myxomycete communities clustered between different microhabitats. High values of coefficient of community and percentage similarity indices possibly implicates that spore dispersal in forest fragments in closer proximities may cause high number of shared species (60%). With an addition of Cribraria lepida as a new record for the country, this study now updates the myxomycete profile for Laguna, Philippines.

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Section: Introductionmentioning

confidence: 99%

Myxomycete communities occurring in fragmented forest patches in two municipalities of Laguna, Philippines

et al. 2018

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“…Even though this is a partial result of the limited experimental design applied to the present investigation, it provides an idea for future research. Previous studies may contain data in such a direction (e.g., Rollins & Stephenson, 2012;Rojas & Doss, 2014), but they are limited in the level of biosystem variability included in the original design, with one common sampling methodology. One aspect to carefully consider in these analyses, is that the linear or exponential relationships observed are only valid at low sampling effort levels (i.e.…”

Section: Discussionmentioning

confidence: 99%

“…In each locality, a clearly defined edge separating a forested patch from a non-forested area was used as the main criterion for selection. Based on the calculated magnitude of the edge effect by Zhen & Chen (2000) and previous results obtained by Rojas & Doss (2014), the edge effect on myxomycetes was determined to take place in the first 50 m into the forest. In this manner, the ecotone concept, as applied in this study, occurred within this zone.…”

Section: Methodsmentioning

confidence: 99%

“…Stephenson & Landolt (1996) carried out a similar study in two different temperate forests and concluded that nutrient availability and soil conditions influenced the myxomycetes recorded in the different litter layers. In the tropics, Rojas & Doss (2014) recorded different myxomycete species in the first 100 m from the forest edge and concluded that habitat heterogeneity was responsible for the results they obtained.…”

Section: Introductionmentioning

confidence: 92%

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Myxomycetes within ecotones in temperate and tropical forests

et al. 2021

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Ecotones are interesting portions of forests where microorganisms can be studied for monitoring and diversity purposes. Given the faster life cycle of these organisms, their study in such a context is important to develop models that allow us to understand adaptive microbial dynamics. The main objective of this study was to evaluate the dynamics of myxomycetes present in the leaf litter layer in different geographical locations representing both temperate and tropical systems, using an experimental approach within the ecotones produced by sharp forest edges. Employing the moist chamber technique and three ecological indicators (species richness, diversity, and number of records, as a proxy for abundance) associated with the reproductive phase of the life cycle of myxomycetes, the present study summarized the potential effect of both temperate and tropical ecotones on the distribution of these organisms. Data from 26 locations in six countries showed that all indicators were higher in temperate than in tropical forests and that most differences could be explained by ecological effects. The overall influence of the ecotone on myxomycetes was opposite in temperate and tropical forests, but the data collected for both types of forests showed similarities that could be explained by comparable mathematical models. These results suggested that, with the methods used herein, ecotones do affect ecological patterns of myxomycetes, but the intensity and directionality of such an effect differ depending on the forest type involved.

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“…Myxomycetes constitute useful indicator organisms for assessing the microbial ecology in urban centers and are affected by the degree of urbanization. Forest disturbance-associated human activities result in the loss of habitat and available substrates for myxomycetes, causing differences in fruiting body abundance (Dagamac et al, 2015;Macabago et al, 2017;Rojas & Doss, 2014;Rojas & Stephenson, 2013). However, evident differences in myxomycete communities between urban centers and outer zones are unlikely (Rojas et al, 2022).…”

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confidence: 99%

Myxomycetes on the bark of living <i>Metasequoia glyptostroboides</i> trees and their distribution along a rural-urban gradient

TAKAHASHI

2024

Mycoscience

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Myxomycetes are fungus-like amoeboid protists that primarily inhabit plant detritus and humus in terrestrial ecosystems (Stephenson, 2011), preferring habitats such as dead wood, litter, soil, and living tree bark, based on differences in the substrates and microenvironments (Novozhilov et al., 2022). Their fruited sporangia mostly disperse spores by wind (Kamono et al., 2009) and reproduce on various substrates. Some species known as bark-dwelling myxomycetes (corticolous myxomycetes) extend their habitat to the bark surface of living trees, where they complete their life cycle (Keller & Brooks, 1973). Although these species mostly possess minute fruiting bodies with an ephemeral existence and are rarely observed in the field, they can be reliably detected using the moist chamber culture technique (Michell, 1977).Trees of the species Metasequoia glyptostroboides Hu et W. C. Cheng were found as fossils from the Cretaceous by Dr. Shigeru Miki (Tsukagoshi et al., 2011) and later discovered as an extant plant in China (Hu, 1946;Hu & Cheng, 1948); the species is therefore regarded as a "living fossil." Even though the species became extinct in the Japanese archipelago during the 4 th Cenozoic period (Momohara, 2011), present specimens in Japan derive from 100 seedlings that were a present from Dr. R. W. Chaney from the USA (Tsukagoshi et al., 2011). The species was then propagated to schools, companies, and the public through cuttings planted throughout the country and was used as a garden and roadside tree in green areas in conurbations, local cities, rural areas, and in afforestation to examine its usefulness for timber production (Tsukagoshi, 2016). The bark surface provides a habitat for many myxomycetes that grow on bark surface (Takahashi, 2014).Urbanization is presumed to cause various environmental changes (Grimm et al., 2008;Güneralp & Seto, 2013) along with habitat loss and fragmentation, resulting in impacts on biodiversity and ecological processes (Liu et al., 2016). Urbanization has increased globally and is rapidly spreading. The urban population in three conurbations in Japan is expected to reach 56.7% of the country's total population by 2050 (Ministry of Internal Affairs and Communications, www.soumu.go.jp). Understanding the effects of urbanization on biodiversity is thus of vital importance. Although the effects of urbanization on species richness have been studied and discussed for large visible plants, animals, birds, and arthropods (Faeth et al., 2011;McKinney, 2008), the importance of saproxylic microbes and the effects of urbanization on microbial diversity remain to be studied in detail (Korhonen et al., 2022). As a great variety of microbes, such as bacteria, fungi, and viruses, including the protozoan myxomycetes, inhabit human living spaces,

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Does habitat loss affect tropical myxomycetes?

Cited by 8 publications

References 3 publications

Myxomycete communities occurring in fragmented forest patches in two municipalities of Laguna, Philippines

Myxomycete communities occurring in fragmented forest patches in two municipalities of Laguna, Philippines

Myxomycetes within ecotones in temperate and tropical forests

Myxomycetes on the bark of living <i>Metasequoia glyptostroboides</i> trees and their distribution along a rural-urban gradient

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