Effects of forest fragmentation on plant quality, leaf morphology and herbivory of Quercus deserticola: is fluctuating asymmetry a good indicator of environmental stress?

García-Jain, Silvia Ecaterina; Maldonado-López, Yurixhi; Oyama, Ken; Fagundes, Marcílio; Faria, Maurício Lopes de; Espírito-Santo, Mário M.; Cuevas‐Reyes, Pablo

doi:10.1007/s00468-021-02228-2

Cited by 7 publications

(3 citation statements)

References 105 publications

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“…The east edge had the highest temperature, luminosity, and lowest humidity in comparison to the other sites. Plants in highly stressed environments, such as the east edge, may be more susceptible to herbivore attack (García-Jain et al 2021). This occurs because plants cannot maintain their homeostasis when they are subjected to harsh conditions; in this case, their tolerance surpasses the limits of their phenotypic plasticity, incurring several changes, both physiological and morphological (Nikiforou & Manetas 2017, Aguilar-Peralta et al 2020.…”

Section: Discussionmentioning

confidence: 99%

Effect of ants on herbivory levels ofInga laurina: the interplay between space and time in an urban area

Domingos

Alves-Silva²

2023

J. Trop. Ecol.

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Extrafloral nectary plants not only occur in natural areas but also in urban parks. These areas are prone to edge effects, and plants face different microenvironmental conditions. We investigated the spatial variation of ant–plant interactions in an urban park, and we examined if plants with ants would show lower herbivory levels and if it depended on habitat type (interior or edges). Seedlings of Inga laurina were set in 200-m long transects (which covered both the west and east edges, and the interior) in an urban park and then experimentally assigned to be either ant-present or ant-excluded plants. Leaf herbivory was investigated throughout the wet season and was influenced by the interaction effect between ants and habitat type. Ants decreased the herbivory on the west edge, but on the east edge results were the opposite. The east edge had higher temperature and sunlight exposure in comparison to the other sites and was assumed to disrupt the stability of ant–plant interactions. In the interior of the fragment, herbivory depended on ant presence/absence and on the location of plants along the transect. Our study highlights how the outcomes of ant–plant interactions are spatially conditioned and affected by different types of habitats.

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Section: Discussionmentioning

confidence: 99%

Effect of ants on herbivory levels ofInga laurina: the interplay between space and time in an urban area

Domingos

Alves-Silva²

2023

J. Trop. Ecol.

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“…Opportunistic species (e.g., fire ants) benefit from fragmentation (Crist, 2009; Collevatti et al, 2020), which creates border areas (Ye et al, 2021). Forest borders resulting from anthropogenic activities especially exhibit sudden changes in temperature, humidity and light (Lourenco et al, 2019; García‐Jain et al, 2021), which favours the colonization of S. invicta and S. saevissima (Almeida et al, 2007; Martins et al, 2014). For crops, there are also factors related to soil management that favour colonization by S. invicta .…”

Section: Discussionmentioning

confidence: 99%

Impact of native vegetation cover near crops on the occurrence and molecular diversity of fire ants

Nagatani

Ramalho

Alves

et al. 2022

Agri and Forest Entomology

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Solenopsis invicta and Solenopsis saevissima are the most common fire ants in Brazil. Environmental disturbances favour the colony dispersal of both species, particularly those with an anthropogenic origin. However, the frequencies of the species can vary according to the amount of anthropogenic disturbances. Crops near native vegetation fragments is a common landscape in the Brazilian Atlantic Forest. Here, we analyse if there is influence of native vegetation cover on the occurrence of these fire ants and their molecular diversity in crops. Our hypothesis is that these species are antagonistic in terms of occurrence and molecular diversity when compared in the same habitat. We selected crops near fragments with around 50% of native vegetation cover, a percentage informative enough to detect biological responses from insects belonging to a same order. Nests were collected and the species were identified using external morphology, and mtDNA COI sequences. We reject our hypothesis, which suggest that the species colonize the vegetation patches around crops in a similar way. Solenopsis invicta is not limited by vegetation cover, and has a high haplotype diversity when compared to S. saevissima, particularly when the vegetation cover is greater than 50%. Additionally, the vegetation cover seems to not have influence in the total number of haplotypes, but the species have haplotypes that are exclusive to each landscape. Our findings suggest that S. invicta is expanding to native vegetation areas that it has not occupied before, as S. saevissima was dominant there.

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“…These effects are translated to the origin, scaled to unit-centroid size, and rotated via a generalized least-squares algorithm that enables their alignment along a common coordinate system ( Rohlf and Slice 1990 ) resulting in the removal of the extraneous information of landmark´s size and orientation ( Savriama 2018 ). GM are powerful analytic tools in constant development that offer a new way of studying species evolution ( Savriama 2018 ), systematics ( Liu et al 2018 ; Menini Neto et al 2019 ), and even phylogeography ( Terral et al 2004 , 2012 ) or ecology ( García-Jain et al 2022 ) and archaeophenomics ( Evin et al 2022 ) by collecting and comparing the morphology of organisms. GM studies in plants have been implemented with ancient plant organs ( Terral et al 2004 , 2012 ), functional traits ( Van der Niet et al 2010 ; Neustupa and Nemcova 2022 ), and floral symmetry ( Chen et al 2018 ; Savriama 2018 ).…”

Section: Introductionmentioning

confidence: 99%

Geometric Morphometrics sheds light on the systematics affinities of two enigmatic dwarf Neotropical sedges (Carex, Cyperaceae)

Morales-Alonso,

Villaverde,

Jiménez-Mejías

2023

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Geometric morphometrics (GM) is a powerful analytical tool that enables complete quantification of shapes. Its use in Botany has a great potential for complementing plant evolutionary and ecological studies. Taxonomic delimitation in Carex has been complicated due to reduction of characters and frequent homoplasy. This problem is more marked in cases where the species exhibit dwarfism. South America is the continent with the least understood Carex flora. The systematic relationships of some bizarre-looking groups were not unraveled until molecular phylogenetic studies resolved their relationships. In particular, there are two species only known from their type material whose affinities remain uncertain: Carex herteri and C. hypsipedos. These two taxa are acaulescent plants that respectively grow in the Uruguayan pampa and Peruvian high-altitude meadows. Recently, both species were ascribed to the Carex phalaroides group (subgen. Psyllophorae, sect. Junciformes) due to superficial morphological similarities, such as the androgynous peduncled spikes. However, their character combination is also coincident for its circumscription to sect. Abditispicae species. Nevertheless, in the absence of confirmation from molecular analyses, their placement must be considered preliminary until additional data can be provided. In this work we employ for the first time geometric morphometrics (GM) tools to assess the systematic affinities of two taxonomically problematic sedge species based on fruit shape. We compared utricle morphology of C. herteri and C. hypsipedos with that of C. phalaroides group and species in sect. Abditispicae. To this end we used GM and traditional morphometric approaches. Utricle shape variation along with other morphological features support the exclusion of these two species from the C. phalaroides gr. and, at the same time, show clear affinities of C. herteri to sect. Abditispicae. Carex hypsipedos remains as an incertae sedis species. Our work shows the potential utility of GM for the exploration of systematic affinities in sedges and in other graminoids.

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Effects of forest fragmentation on plant quality, leaf morphology and herbivory of Quercus deserticola: is fluctuating asymmetry a good indicator of environmental stress?

Cited by 7 publications

References 105 publications

Effect of ants on herbivory levels ofInga laurina: the interplay between space and time in an urban area

Effect of ants on herbivory levels ofInga laurina: the interplay between space and time in an urban area

Impact of native vegetation cover near crops on the occurrence and molecular diversity of fire ants

Geometric Morphometrics sheds light on the systematics affinities of two enigmatic dwarf Neotropical sedges (Carex, Cyperaceae)

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Effects of forest fragmentation on plant quality, leaf morphology and herbivory of Quercus deserticola: is fluctuating asymmetry a good indicator of environmental stress?

Cited by 7 publications

References 105 publications

Effect of ants on herbivory levels ofInga laurina: the interplay between space and time in an urban area

Effect of ants on herbivory levels ofInga laurina: the interplay between space and time in an urban area

Impact of native vegetation cover near crops on the occurrence and molecular diversity of fire ants

﻿Geometric Morphometrics sheds light on the systematics affinities of two enigmatic dwarf Neotropical sedges (Carex, Cyperaceae)

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Geometric Morphometrics sheds light on the systematics affinities of two enigmatic dwarf Neotropical sedges (Carex, Cyperaceae)