A Hollywood palm icon unmasked: clinal variation in Washingtonia (Arecaceae) of Peninsular California

Villanueva-Almanza, Lorena; Garcillán, Pedro P.; Ávila‐Lovera, Eleinis; Pérez, Vanessa; Bejarano, Christian Silva; Focht, Eric; Ezcurra, Exequiel

doi:10.1093/botlinnean/boy066

Cited by 6 publications

(6 citation statements)

References 34 publications

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“…They are the dominant vegetation, and centers for birds and mammals through providing shelter and resource concentration (Felger et al, 2017). Washingtonia palm oases can be considered an archipelago habitat with specific environmental conditions surrounded by desert scrub (Villanueva-Almanza et al, 2018). Many species of mammals, reptiles, insects, migratory and resident birds, including raptors, have been observed to use canyons as sources of water and food, taking seeds in their movements from lowlands to uplands and connecting isolated palm populations (Wehncke et al, 2009; and records of camera traps from this study).…”

Section: Discussionmentioning

confidence: 72%

“…Washingtonia is a genus classified in the Trachycarpeae tribe of the Coryphoideae subfamily, within the Arecaceae family, which includes all palm species (Baker & Dransfield, 2016). This genus includes 2 species native to North America, Washingtonia filifera Linden ex André, occurring naturally in southwest Arizona, southern California, and northern Baja California, and Washingtonia robusta H. Wendl, found only in Baja California and Sonora (Felger & Joyal, 1999;Nehdi, 2011), though see Villanueva-Almanza (2018) for discussion of a possible cline between these 2 species in Baja California.…”

Section: Introductionmentioning

confidence: 99%

“…Palabras clave: Arroyos; Cañones; Frugivoría; Mutualismos; Oasis; Palmas; Fenología; Interacciones planta-animal https://doi.org/10. 22201/ib.20078706e.2020.91.3129 distribution, implying that present populations are relicts of a historically wide distribution (Klimova et al, 2017;Villanueva-Almanza et al, 2018). The biogeographical history of this species and its occurrence limited to oasis habitats offers a fascinating scenario to evaluate patterns and scales of predation/dispersal processes affecting fruits and seeds, a strongly heterogeneous resource that varies among successive spatial and temporal extents (Wehncke et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

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The role of wild canids in the seed dispersal of Washingtonia robusta (Arecaceae) in Sonoran Desert oases

et al. 2020

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Section: Discussionmentioning

confidence: 72%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The role of wild canids in the seed dispersal of Washingtonia robusta (Arecaceae) in Sonoran Desert oases

et al. 2020

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“…A recently described species or a recent taxonomic change may not have been implemented yet in the reference taxonomy (POWO). For example, both molecular and morphological data accumulated during the last decade [26,[48][49][50][51] clearly suggest that the palm genus Washingtonia is composed of a single species instead of the two-species taxonomy of POWO (https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:331308-2; accessed on 7 February 2023). Nevertheless, iNaturalist offers some ways to deal with these discrepancies.…”

Section: Taxa Not Accommodable To Inaturalist Plant Taxonomic Referencementioning

confidence: 99%

Strengths and Challenges of Using iNaturalist in Plant Research with Focus on Data Quality

López-Guillén,

Herrera,

Bensid

et al. 2024

Diversity

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iNaturalist defines itself as an “online social network of people sharing biodiversity information to help each other learn about nature” and it is likely one of the largest citizen science web portals in the world, as every year millions of observations across thousands of species are gathered and collectively compiled by an engaged community of nearly 3 million users (November 2023). The strengths and potentialities that explain the success of the platform are reviewed and include, among others, its usability and low technical requirements, immediacy, open-access, the possibility of interacting with other users, artificial-intelligence-aided identification, versatility and automatic incorporation of the validated records to GBIF. iNaturalist has, however, features that scientists need to carefully consider when using it for their research, making sure that the quality of observations does not limit or hinder its usefulness in plant research. While these are identified (e.g., the lack of representative photographs for many observations or the relatively frequent identification errors), we provide some suggestions to overcome them and, by doing so, improve the use and add value to iNaturalist for plant research.

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“…For instance, in many cases the height of the plants makes it difficult to collect them, and the large size of their leaves or the presence of spines makes them hard to preserve in herbaria (Tomlinson 1979, Henderson 2006). This, coupled with high levels of both intra‐ and inter‐species variation (Laubengayer et al 2012, Atria et al 2017, Villanueva‐Almanza et al 2018) make the completion of detailed systematic studies on palms a challenging task. Many species of palms have a wide morphological variation that often overlaps with that of other species (Umapathy et al 2014, Atria et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Morphological variation between the two species of the palm genus Gaussia (Arecaceae) from Mesoamerica

Santos-Hernández

Pérez‐Farrera

Eguiarte

et al. 2022

Nordic Journal of Botany

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Palms (Arecaceae) represent a challenge for studies of morphological variation for several various reasons. For instance, the height of many species makes them difficult to collect, and in some cases, the size of the leaves or the presence of spines make them hard to process and preserve in herbaria. Arecaceae is one of the most diverse families of monocots (ca 2600 species), and many of its species remain poorly studied. The genus Gaussia has five recognized species. Their distributions are restricted to Central America and the Caribbean islands, and for most of them, their taxonomic descriptions are the only information available. Two species – Gaussia maya and G. gomez‐pompae – are exclusively distributed in Mesoamerica. They occur allopatrically and their populations are isolated from each other. The aim of this work was to evaluate the levels of intra‐ and inter‐population morphological variation in both species and determine the possible factors that influence such a variation. We examined the morphological variation of 13 vegetative structures of 155 adult individuals from nine populations of G. maya and G. gomez‐pompae. The differentiation among populations was significant for almost all the variables and was consistent with an isolation‐by‐distance pattern. A linear discriminant analysis, Mahalanobis distances and UPGMA cluster analysis based on Euclidean distances among populations showed that three morphological groups could be distinguished. One group contained only individuals of G. maya, the second only G. gomez‐pompae, while the third group represents a yet unknown taxon. Pairwise differentiation tests clarified the morphological distinction among the three groups. This work highlights the importance of quantifying morphological variation between populations of little‐studied palms.

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A Hollywood palm icon unmasked: clinal variation in Washingtonia (Arecaceae) of Peninsular California

Cited by 6 publications

References 34 publications

The role of wild canids in the seed dispersal of Washingtonia robusta (Arecaceae) in Sonoran Desert oases

The role of wild canids in the seed dispersal of Washingtonia robusta (Arecaceae) in Sonoran Desert oases

Strengths and Challenges of Using iNaturalist in Plant Research with Focus on Data Quality

Morphological variation between the two species of the palm genus Gaussia (Arecaceae) from Mesoamerica

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