Determinants of orchid species diversity in world islands

Traxmandlová, Iva; Ackerman, James D.; Tremblay, Raymond L.; Roberts, David L.; Štípková, Zuzana; Kindlmann, Pavel

doi:10.1111/nph.14862

Cited by 8 publications

(11 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Consequently, large islands will not only have more available habitats for the evolution of native species but also have more habitats that may be colonized by alien species resulting in a higher number of both native and alien species (Jarnevich, Stohlgren, Barnett, & Kartesz, 2006). In the Lesser Antilles, islands with high topographic relief also have a broader range of temperatures and rainfall, and often support greater range of habitats and communities than islands with low relief (Ricklefs & Lovette, 1999; Ackerman, Trejo‐Torres, & Crespo‐Chuy, 2007; Joseph 2012; Joseph, 2013; Traxmandlová et al., 2017; Debrot, Madden, Becking, Rojer, & Miller, 2020). Not surprisingly, our data show that large islands with wide elevation ranges such as Guadeloupe and Martinique are hosting more species than small low islands such as Anguilla and St Martin.…”

Section: Discussionmentioning

confidence: 99%

Island biogeography of native and alien plant species: Contrasting drivers of diversity across the Lesser Antilles

Rojas‐Sandoval

Ackerman

Tremblay

2020

Diversity and Distributions

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Discussionmentioning

confidence: 99%

Island biogeography of native and alien plant species: Contrasting drivers of diversity across the Lesser Antilles

Rojas‐Sandoval

Ackerman

Tremblay

2020

Diversity and Distributions

Self Cite

View full text Add to dashboard Cite

show abstract

“…The distribution and abundance of orchid populations are curtailed by biotic and abiotic factors. These include latitude, macroclimate, area size, and evolutionary history at the large landscape scale, soil characteristics, light conditions, substrate types, degree of disturbance, pollinating insects, and seed production and dispersal at the local landscape scale, while the effects of altitude, soil moisture, and pH may span both scales (McCormick and Jacquemyn, 2014;Djordjević et al, 2016;Traxmandlová et al, 2018;Tsiftsis et al, 2019;Djordjević and Tsiftsis, 2020). The influence of these factors may depend on the spatiotemporal scale in consideration.…”

Section: Effects Of Omf On Orchid Distribution and Population Dynamicsmentioning

confidence: 99%

“…On one hand, interactions with specific pollinators promote the reproduction of orchids; on the other hand, symbiotic fungi are required for soil exploitation (Selosse, 2014). Greater environmental heterogeneity and a wider range of resource availability usually contribute to the increase of orchid species diversity (Schödelbauerová et al, 2009;Traxmandlová et al, 2018). Thus, untangling the role of environmental conditions in determining the distribution and abundance of orchids is a prerequisite for effective conservation of these species.…”

Section: Introductionmentioning

confidence: 99%

How Mycorrhizal Associations Influence Orchid Distribution and Population Dynamics

Yang

et al. 2021

Front. Plant Sci.

View full text Add to dashboard Cite

Orchid distribution and population dynamics are influenced by a variety of ecological factors and the formation of holobionts, which play key roles in colonization and ecological community construction. Seed germination, seedling establishment, reproduction, and survival of orchid species are strongly dependent on orchid mycorrhizal fungi (OMF), with mycorrhizal cheating increasingly observed in photosynthetic orchids. Therefore, changes in the composition and abundance of OMF can have profound effects on orchid distribution and fitness. Network analysis is an important tool for the study of interactions between plants, microbes, and the environment, because of the insights that it can provide into the interactions and coexistence patterns among species. Here, we provide a comprehensive overview, systematically describing the current research status of the effects of OMF on orchid distribution and dynamics, phylogenetic signals in orchid–OMF interactions, and OMF networks. We argue that orchid–OMF associations exhibit complementary and specific effects that are highly adapted to their environment. Such specificity of associations may affect the niche breadth of orchid species and act as a stabilizing force in plant–microbe coevolution. We postulate that network analysis is required to elucidate the functions of fungal partners beyond their effects on germination and growth. Such studies may lend insight into the microbial ecology of orchids and provide a scientific basis for the protection of orchids under natural conditions in an efficient and cost-effective manner.

show abstract

“…Orchidaceae showed a particularly strong insularity in full accordance with what was reported in Lussu et al [70], where area resulted a better predictor of species richness in comparison to elevation in Mediterranean islands, although Gentili et al [71] highlighted the highest levels of speciation and diversity in Mediterranean mountains. These plants are commonly present at low population densities in a variety of habitats and this feature makes Orchidaceae particularly susceptible to island size and explains their insularity found worldwide [72].…”

Section: Discussionmentioning

confidence: 99%

From Island Biogeography to Conservation: A Multi-Taxon and Multi-Taxonomic Rank Approach in the Tuscan Archipelago

Ruzzier

Forbicioni²,

Gentili

et al. 2021

Land

View full text Add to dashboard Cite

Investigating the drivers that support species richness (S) in insular contexts can give insights for the conservation of insular biodiversity. Our aim was to decouple the effect of drivers (island area, distance from mainland and habitat diversity) accounted in three hypotheses or a combination of them in explaining S in seven islands of the Tuscan Archipelago: Area (species–area relationship, SAR), area and distance from mainland (equilibrium hypothesis, EQH) and habitat (habitat diversity hypothesis, HDH). We used published and original datasets to assess S (except aliens) for 42 taxa (14 animal and 28 plant taxa) in each island, and we used S as the dependent variable and the drivers as covariates in regression models. In 31 taxa, the data supported one of the tested hypotheses or a combination of them, and the most commonly supported hypotheses were SAR (12 taxa) and EQH (10 taxa). The effect of the area was also evident in SAR + HDH (five taxa) and EQH + HDH (one taxon), making it the prevailing driver in explaining S. Since distances are relatively short, and three out of four islands are land-bridge islands, the effect of distance was significant for 12 taxa. The effects of habitat diversity were evident for just nine taxa. The multi-taxon approach allowed us to understand the differential effect of drivers among taxa in influencing S in a single archipelago. Moreover, the multi-taxonomic rank approach highlighted how the information contained within higher taxonomic ranks (e.g., Division) can be substantially different from that derived from lower ranks (e.g., Family). These insights are of particular importance from a conservation perspective of the archipelago’s biodiversity, and this approach can be transferred to mainland fragmented systems.

show abstract

Determinants of orchid species diversity in world islands

Cited by 8 publications

References 17 publications

Island biogeography of native and alien plant species: Contrasting drivers of diversity across the Lesser Antilles

Island biogeography of native and alien plant species: Contrasting drivers of diversity across the Lesser Antilles

How Mycorrhizal Associations Influence Orchid Distribution and Population Dynamics

From Island Biogeography to Conservation: A Multi-Taxon and Multi-Taxonomic Rank Approach in the Tuscan Archipelago

Contact Info

Product

Resources

About