Biophysical drivers of fiddler crab species distribution at a latitudinal limit

Peer, Nasreen; Rishworth, Gavin M.; Miranda, Nelson A.F.; Perissinotto, Renzo

doi:10.1016/j.ecss.2018.05.001

Cited by 11 publications

(3 citation statements)

References 61 publications

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“…The intensity of physiological stressors in this microhabitat might be comparatively lower due to the combined effect of shade from its foliage, considering that canopy cover influences temperature and water availability (Nobbs andBlamires, 2015, 2017). This might be the case, as fiddler crab spatial distribution across the mangrove ecosystem is influenced by physiological stressors independently of sympatric interactions (Nobbs, 2003;Nobbs and Blamires, 2017;Peer et al, 2018).…”

Section: Discussionmentioning

confidence: 99%

Behavior and activity pattern of Minuca osa (Brachyura: Ocypodidae) from Ponuga, Veraguas, Panama

Lombardo

2023

BIOCYT

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From November 2022 to February 2023, observations to describe the behavior and the activity pattern of Minuca osa were conducted in Ponuga, Veraguas, Panamanian Pacific. Quadrants (5m²) over four substrate types were also laid and the number and burrow diameter were recorded for density and relative fiddler crab associations to the substrate. Nine discrete behaviors were observed, with feeding and locomotion being the most frequent. There was a significant difference in elapsed time and frequency proportions among behaviors. Combat and waving were male-exclusive behaviors, and more time was spent waving than in combat. Behaviors were displayed non-randomly throughout the observation period with highest frequency between 10:30 a.m. and 12:30 p.m. The sex ratio was skewed towards males (2.4:1), while the carapace width of males and females averaged 23.40 mm and 18.42 mm, respectively. Quadrants covered with Hymenocallis littoralis had the most burrows (20.45 burrows/m2) with the smallest diameter, while the largest diameter burrows were found in mixed-cover quadrants. Maximum temperature and monthly accumulated rain significantly influenced the number of active crabs on the surface.

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Section: Discussionmentioning

confidence: 99%

Behavior and activity pattern of Minuca osa (Brachyura: Ocypodidae) from Ponuga, Veraguas, Panama

Lombardo

2023

BIOCYT

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“…The onshore peak in four seasons was always found in the middle part of the marsh tussock, with appropriate water content, organic matter content, and soil salinity conditions. Previous studies showed that these three abiotic factors are particularly important, because (1) water content relieves desiccation stress, (2) organic matter is a key food resource for crabs and (3) inappropriate soil salinity limits the distribution of crabs (Reinsel and Dan, 1995;Thrush et al, 2003;Colpo and Negreiros-Fransozo, 2013;Li et al, 2018;Peer et al, 2018). Meanwhile, the plant biomass in the middle of salt marsh tussock was moderate.…”

Section: Discussionmentioning

confidence: 99%

Role of abiotic drivers on crab burrow distribution in a saltmarsh wetland

Chen

Zhou²,

He³

et al. 2022

Front. Mar. Sci.

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Crab burrows play an important role in saltmarsh wetlands and are a useful indicator of wetland condition. The spatiotemporal distribution of crab burrows varies considerably in tidal wetlands. However, the reasons for these variations are poorly understood, in part, due to the limited availability of comprehensive field data. Based on a two-year continuous observation at a tidal wetland in the northern Jiangsu Coast, China, this study explored the relationship between crab burrow density and environmental variables, including median grain size, water content, organic matter content, soil salinity, and elevation. Our results show that the distribution of crab burrows was unimodal across the shore in winter and spring (Nov-Apr) when air temperature was relatively low, while bimodal in summer and autumn (May-Oct) when temperature was relatively high. The density of crab burrows was larger at areas with higher water content, higher organic matter content, and lower soil salinity, while it was lower with stronger hydrodynamics and lower suspended sediment concentration. Crab burrows were more abundant in vegetated areas than in un-vegetated areas. A backward stepwise model selection was performed based on R-square and Akaike information criterion (AIC) to distinguish the main driving factors that determine crab burrow distribution. Results suggested that the principal driving factors were organic matter content and soil salinity in all the seasons, with the addition of water content in warm seasons. Overall, this study provides a comprehensive field dataset for a more in-depth understanding of crab burrow distribution and a scientific basis for sustainable management of tidal wetlands.

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“…The framework also assists researchers asking questions that purposely vary in spatial setting, as in latitudinal gradient work (e.g., Pennings and Bertness 1999; Pennings and Silliman 2005; Canepuccia et al 2018; Mueller et al 2018; Peer et al 2018; Liu et al 2020). For example, if researchers are exploring how fish habitat usage of salt marsh patches (size and configuration) varies across a latitudinal gradient, how can the conceptual framework help choose appropriate study sites?…”

Section: Framework Applicationmentioning

confidence: 99%

An integrative salt marsh conceptual framework for global comparisons

Yando

Jones

James

et al. 2023

Limnol Oceanogr Letters

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Salt marshes occur globally across climatic and coastal settings, providing key linkages between terrestrial and marine ecosystems. However, salt marsh science lacks a unifying conceptual framework; consequently, historically well‐studied locations have been used as normative benchmarks. To allow for more effective comparisons across the diversity of salt marshes, we developed an integrative salt marsh conceptual framework. We review ecosystem‐relevant drivers from global to local spatial scales, integrate these multi‐scale settings into a framework, and provide guidance on applying the framework using specific variables on 11 global examples. Overall, this framework allows for appropriate comparison of study sites by accounting for global, coastal, inter‐, and intra‐system spatial settings unique to each salt marsh. We anticipate that incorporating this framework into salt marsh science will provide a mechanism to critically evaluate research questions and a foundation for effective quantitative studies that deepen our understanding of salt marsh function across spatial scales.

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Biophysical drivers of fiddler crab species distribution at a latitudinal limit

Cited by 11 publications

References 61 publications

Behavior and activity pattern of Minuca osa (Brachyura: Ocypodidae) from Ponuga, Veraguas, Panama

Behavior and activity pattern of Minuca osa (Brachyura: Ocypodidae) from Ponuga, Veraguas, Panama

Role of abiotic drivers on crab burrow distribution in a saltmarsh wetland

An integrative salt marsh conceptual framework for global comparisons

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