Differences of tree species composition and microclimate between a mahogany<i>(swietenia macrophylla</i>king) plantation and a secondary forest in Mt. Makiling, Philippines

Lee, Yong Kwon; Lee, Don Koo; Woo, Su Young; Abraham, E. R. G.; Carandang, Wilfredo M.; Yeo, Un Sang; Park, Chongho

doi:10.1080/21580103.2006.9656293

Cited by 10 publications

(5 citation statements)

References 25 publications

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“…While secondary forest succession has been shown to recover a broader range of microhabitats as climate refugia (Lee et al 2006, del Pliego et al 2016), these studies did not measure animal species responses, and were mainly based on short-term studies by chronosequences and associated space-for-time substitutions, assuming a sequential and directional recovery pathway over time. However, under climate change, different successional stages may not follow a convergent path and may result in unmatched conditions (Walker et al 2010, Arroyo-Rodrı ´guez et al 2017.…”

Section: Introductionmentioning

confidence: 99%

Secondary forest succession buffers extreme temperature impacts on subtropical Asian ants

Lee

Morgan

Liu

et al. 2021

Ecological Monographs

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Secondary forest succession may restore microclimatic refugia for ectotherms and play a fundamental role in mitigating the combined effects of deforestation and climate warming on biodiversity; however, empirical evidence remains limited by short-term, coarsescale, and solely taxonomic-based approaches. We hypothesize that ant assemblage composition will respond differently to an increased frequency of extreme heat events between sites with and without microclimatic refugia provided by secondary forest's regrowth. We test this hypothesis by integrating comprehensive historic surveys (1992)(1993)(1994) and contemporary resampling (2015-2017) of ant assemblages to investigate how soil surface temperatures (estimated by microclimatic models [30 × 30 m]) and physical parameters (e.g., canopy cover) over the past >20 yr drive changes in their taxonomic, functional, and phylogenetic diversity for open (grasslands and shrublands) and closed (secondary forests) habitat types. Our results show a significant spatial turnover in the ant assemblage composition in both habitat types over the past two decades. Furthermore, for taxonomic, functional and phylogenetic spatial beta diversity, temperature became the primary variable explaining the differences in species composition among sites in open habitats, but not in closed habitats. Nevertheless, leaf litter cover may, to a certain extent, provide some thermal buffer for litter-dwelling species exposed to extreme heat. On the contrary, within forests, canopy cover mitigated the adverse impact of extreme heat on ant assemblages, with a shift toward smaller body size observed over time only in sites with lower canopy cover. These findings highlight the importance of restored canopy in providing thermal buffering for understory ectotherms. While tropical forest restoration represents an essential component in enhancing species resilience under climate warming, additionally we considered that the restoration of microclimatic regimes across different land use types is essential to conserve tropical biodiversity across the deforested landscape.

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Section: Introductionmentioning

confidence: 99%

Secondary forest succession buffers extreme temperature impacts on subtropical Asian ants

Lee

Morgan

Liu

et al. 2021

Ecological Monographs

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“…Denser foliage cover and branching patterns in Calophyllaceae species ( Mesua ferrea ) also functioned as more significant thermal radiation filters than foliage and branching patterns in Euphorbiaceae species ( Shahidan et al, 2010 ). In mahogany (Meliaceae family) plantations, the soil temperature was higher, but the relative humidity was lower than in secondary forests ( Lee et al, 2006 ; Norton et al, 2015 ). Thus, the RDA ordination results support proper species selection that favors forest microclimate regulation ( Abreu-Harbich, Labaki & Matzarakis, 2015 ; Shahidan et al, 2010 ).…”

Section: Discussionmentioning

confidence: 99%

Decoupling forest characteristics and background conditions to explain urban-rural variations of multiple microclimate regulation from urban trees

Wang

Zhang

et al. 2018

PeerJ

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BackgroundRapid urbanization in semi-arid regions necessitates greater cooling, humidifying, and shading services from urban trees, but maximizing these services requires an exact understanding of their association with forest characteristics and background street and weather conditions.MethodsHere, horizontal and vertical air cooling, soil cooling, shading, and humidifying effects were measured for 605 trees from 152 plots in Changchun. Additionally, weather conditions (Tair, relative humidity, and light intensity), forest characteristics (tree height, diameter at breast height (DBH), under-branch height, canopy size, tree density, and taxonomic family of trees) and background conditions (percentage of building, road, green space, water, and building height, building distance to measured trees) were determined for three urban-rural gradients for ring road development, urban settlement history, and forest types. Multiple analysis of variance and regression analysis were used to find the urban-rural changes, while redundancy ordination and variation partitioning were used for decoupling the complex associations among microclimate regulations, forest characteristics, background street and weather conditions.ResultsOur results show that horizontal cooling and humidifying differences between canopy shade and full sunshine were <4.5 °C and <9.4%, respectively; while vertical canopy cooling was 1.4 °C, and soil cooling was observed in most cases (peak at 1.4 °C). Pooled urban-rural data analysis showed non-monological changes in all microclimate-regulating parameters, except for a linear increase in light interception by the canopy (r2 = 0.45) from urban center to rural regions. Together with the microclimate regulating trends, linear increases were observed in tree density, Salicaceae percentage, Tair, light intensity outside forests, tree distance to surrounding buildings, and greenspace percentage. Redundancy ordination demonstrated that weather differences were mainly responsible for the microclimate regulation variation we observed (unique explanatory power, 65.4%), as well as background conditions (12.1%), and forest characteristics (7.7%).DiscussionIn general, horizontal cooling, shading, and humidifying effects were stronger in dry, hot, and sunny weather. The effects were stronger in areas with more buildings of relatively lower height, a higher abundance of Ulmaceae, and a lower percentage of Leguminosae and Betulaceae. Larger trees were usually associated with a larger cooling area (a smaller difference per one unit distance from the measured tree). Given uncontrollable weather conditions, our findings highlighted street canyon and forest characteristics that are important in urban microclimate regulation. This paper provides a management strategy for maximizing microclimate regulation using trees, and methodologically supports the uncoupling of the complex association of microclimate regulations in fast urbanization regions.

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“…The Mahogany land use type can be found at an elevation of 341 m asl. It is a 60-year plantation heavily dominated by Swietenia macrophylla King (Lee, et al 2010). This land use type harbors the lowest number of observed species with 6 fern species.…”

Section: Dominant Fern Species In Each Land Use Typementioning

confidence: 99%

Fern species diversity across various land use types of Mt. Makiling, Luzon Island, Philippines

2019

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Abstract. Alcala AA, Delos Angeles MD, Buot Jr IE. 2019. Fern species diversity across various land use types of Mt. Makiling, Luzon Island, Philippines. Biodiversitas 20: 2437-2445. Mt. Makiling of Luzon Island, Philippines is home to many living organisms including ferns and fern allies which are one of the important understory vegetation in many forest communities and having various economic uses like food, medicine and ornamentation. This study identified fern species found in various land use types across the northeastern slope of Mt. Makiling, Los Baños, Philippines. The plot technique was employed using a 20x20 meter quadrat. Three (3) 5x2 subquadrats were randomly distributed within the established quadrat. Fern specimens were identified (sensu PPG, 2016) and measured. Samples were collected for herbarium voucher deposited in the PBDH. A total of 28 fern species with 22 genera from 14 families were found across land use types. Identified land use types were: i) Mahogany (341 m asl.); (ii) Agriculture (355 m asl.); (iii) Buffer zone (365 m asl.); (iv) Agroforest (368 m asl.); (v) Roadside (455 m asl.), and (vi) Forest (482 m asl.). The most represented fern families were found out to be Thelypteridaceae (5 spp), Dryopteridaceae (3 spp), Polypodiaceae (3 spp.), Pteridaceae (3 spp), Aspleniaceae (2 spp), Dennstaedtiaceae (2 spp), Selaginellaceae (2 spp.) and Tectariaceae (2 spp.). On the other hand the families Schizaeaceae, Lindsaeaceae, Davalliaceae, Nephrolepidaceae, and Marratiaceae are comprised of one species only. Pteris blumeana C. Agardh and Tectaria crenata Cav. were found only in buffer zone area. Dennstaedtia philippinensis Copel., Lygodium circinnatum (Burm. f.) Sw. and Microlepia sp., were found only in agroforest area; Sphaerostephanos unitus (L.) Holttum found only in agricultural; Bolbitis heteroclita (C. Presl) Ching and Microsorum membranifolium (R. Br.) Ching were found in roadside while Asplenium tenerum G. Forst. , Christella sp., Lindsaea fissa Copel. and Nephrolepis cordifolia (L.) C. Presl were found in forest area. Pneumatopteris nitidula (C. Presl) Holttum. is a dominant fern species found in agriculture and mahogany plantation area. There is a need to document fern species along with its population across land use types in order to utilize ferns as plant indicators due to their vulnerability to changes in environmental conditions. These results can shed light on the appropriate strategy for the conservation and management of ferns in Mt. Makiling.

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Differences of tree species composition and microclimate between a mahogany(swietenia macrophyllaking) plantation and a secondary forest in Mt. Makiling, Philippines

Cited by 10 publications

References 25 publications

Secondary forest succession buffers extreme temperature impacts on subtropical Asian ants

Secondary forest succession buffers extreme temperature impacts on subtropical Asian ants

Decoupling forest characteristics and background conditions to explain urban-rural variations of multiple microclimate regulation from urban trees

Fern species diversity across various land use types of Mt. Makiling, Luzon Island, Philippines

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