Illustrating the value of cross-site comparisons: Habitat use by a large, euryhaline fish differs along a latitudinal gradient

Stevens, Philip W.; Boucek, Ross E.; Trotter, Alexis A.; Ritch, Jared L.; Johnson, Eric R.; Shea, Colin P.; Blewett, David A.; Rehage, Jennifer S.

doi:10.1016/j.fishres.2018.07.005

Cited by 17 publications

(12 citation statements)

References 30 publications

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“…Adaptive behaviors (e.g., movement to thermal refugia during winter) have likely made this range expansion possible (Stevens et al, 2018) and illustrate some plasticity in the life-history traits of subtropical fish species.…”

Section: Coa S Tal Fis He Smentioning

confidence: 99%

“…Thermal refugia play a critical role in the tropical-temperate transition zone by providing warmer microclimates, which enable tropical cold-sensitive species to survive extreme cold events. For example, during extreme cold events: manatees congregate near warmer waters (Laist et al, 2013); coastal fish (Stevens et al, 2018) and sea turtles move to warmer offshore, deeper, or spring-fed waters; reptiles (Mazzotti et al, 2016) and amphibians (Meshaka, 1996) seek shelter closer to warmer soil or water; and cold-sensitive plants are typically located in landscape positions that provide warmer microclimates (D'Odorico et al, 2013). Northern mangrove range limits along the northern Gulf of Mexico, for instance, are often located on barrier islands, which are far from the colder mainland and surrounded by comparatively warmer oceanic waters (Osland, Hartmann, et al, 2019).…”

Section: Cro Climate S and Thermal Refug Iamentioning

confidence: 99%

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Tropicalization of temperate ecosystems in North America: The northward range expansion of tropical organisms in response to warming winter temperatures

Osland

Stevens

Lamont

et al. 2021

Global Change Biology

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143

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Tropicalization is a term used to describe the transformation of temperate ecosystems by poleward-moving tropical organisms in response to warming temperatures. In North America, decreases in the frequency and intensity of extreme winter cold events are expected to allow the poleward range expansion of many cold-sensitive tropical organisms, sometimes at the expense of temperate organisms. Although ecologists have long noted the critical ecological role of winter cold temperature extremes in tropicaltemperate transition zones, the ecological effects of extreme cold events have been understudied, and the influence of warming winter temperatures has too often been left out of climate change vulnerability assessments. Here, we examine the influence of extreme cold events on the northward range limits of a diverse group of tropical organisms, including terrestrial plants, coastal wetland plants, coastal fishes, sea turtles, terrestrial reptiles, amphibians, manatees, and insects. For these organisms, extreme This article has been contributed to by US Government employees and their work is in the public domain in the USA.

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Section: Coa S Tal Fis He Smentioning

confidence: 99%

Section: Cro Climate S and Thermal Refug Iamentioning

confidence: 99%

Tropicalization of temperate ecosystems in North America: The northward range expansion of tropical organisms in response to warming winter temperatures

Osland

Stevens

Lamont

et al. 2021

Global Change Biology

Self Cite

143

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“…Studies on Brazilian estuaries are currently restricted to a focus on only a few systems throughout the country and particularly in southern Brazil (Blaber and Barletta, 2016). Further, information regarding the ecological processes of fish often rely on studies conducted at a local scale, and comparisons drawn across sites may thus offer a stronger understanding of habitat use by species in complex environments like estuaries (Stevens et al, 2018). The estuaries addressed in this study exhibit different characteristics in terms of shapes, sizes, food web structures and anthropogenic impacts, which result in differences in how species use resources.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Trophic resource partitioning of two snook fish species (Centropomidae) in tropical estuaries in Brazil as evidenced by stable isotope analysis

Gonzalez

Ménard

Loc’h

et al. 2019

Estuarine, Coastal and Shelf Science

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We investigated the trophic niches and the resource partitioning of two snook species, the common (Centropomus undecimalis) and the fat snook (C. parallelus), in four tropical estuaries of the northeastern Brazil, using stable isotope analyses of carbon (δ13C) and nitrogen (δ15N). Fish specimens, mainly juveniles, basal resources and a primary consumer were collected in 2015 during dry and rainy seasons in all estuaries, which exhibited differences in system size, geomorphologic shapes, levels of sea access and anthropic pressures. Potential effect of factors like fish body length, estuary and seasonality on isotope ratios were investigated. Positive relationships between the size of fish and δ15N values were found, regardless the species. Our results indicated that snooks can be characterized as secondary consumers and have close trophic niches in most estuaries. Trophic overlaps were more pronounced within the largest estuaries (Catuama and Santa Cruz), whereas smaller systems that have restricted connections to the sea presented low isotopic niche overlap between both species (Suape and Sirinhaém). Moreover, a higher variability of δ13C and δ15N values in snooks was found in larger estuaries undergoing stronger influences from coastal adjacent waters. Although we were not able to detect clear seasonal effects, greater isotopic overlaps were found during the rainy season. Despite the lack of intrinsic differences in life history traits, both species, dominated by juveniles, shared similar trophic niches in these environments. Highlights ► δ 13 C and δ 15 N of two Centropomidae were investigated in four estuaries in Brazil. ► Juveniles of Centropomus undecimalis and C. parallelus have close isotopic niches. ► Trophic overlaps were more pronounced in large estuaries. ► Resource partitioning process might reflects the resource availability in estuaries.

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“…Hence, they have been classified as second-order consumers (Sep úlveda-Lozada et al 2015;Gonzalez et al 2019;Malinowski et al 2019). The Common Snook presents spatial and temporal changes in the composition of its diet associated with the hydrological cycle (Stevens et al 2010(Stevens et al , 2018, the availability of food among habitats (Blewett et al 2006;Souza-Lira et al 2017), and anthropogenic alterations (Adams et al 2009). Information on the Mexican Snook diet is more limited; it has been documented that fish are a primary food source, followed by crustaceans, insects, and plant remains (Chávez 1963;Wakida-Kusunoki and Toro-Ramírez 2016).…”

mentioning

confidence: 99%

“…The Common Snook presents spatial and temporal changes in the composition of its diet associated with the hydrological cycle (Stevens et al. 2010, 2018), the availability of food among habitats (Blewett et al. 2006; Souza‐Lira et al.…”

mentioning

confidence: 99%

Trophic Ecology and Resource Partitioning of Common Snook and Mexican Snook in the Usumacinta River Delta

et al. 2022

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Coexisting species often develop resource‐partitioning mechanisms to reduce their direct competition and optimize energy harvesting. Common Snook Centropomus undecimalis and Mexican Snook C. poeyi are carnivorous fish that coexist in estuaries of the Usumacinta River delta, in the southern Gulf of Mexico, and play an important role for fisheries and economy in this region. We analyzed spatial, temporal, and ontogenetic variability in trophic dynamics and distribution of Common and Mexican snooks. To identify patterns of trophic resource partitioning, we analyzed stomach content and stable isotopes (δ13C, δ15N) of the two species. Fifty‐one prey items were identified, with fish remains being the most abundant component (>35%). The two snook species appeared to be specialized carnivores of the third or fourth trophic level. Diet comparison indicated significant differences among species: Common Snook presented a higher proportion of fish from the families Engraulidae, Clupeidae, and Elopidae, while Mexican Snook consumed a higher fraction of fish from the families Cichlidae, Poeciliidae, and Loricariidae. The diet also presented significant variations between size‐classes. Small‐sized (<350 mm SL) Common Snook showed significantly higher reliance on invertebrates than large‐sized fish (>500 mm SL). Medium‐sized (351–499 mm SL) Mexican Snook consumed a higher proportion of Poeciliidae fish than small‐sized or large‐sized fish. The diet of the two snook species also presented important differences among seasons and sites. Trophic niche overlap between Common and Mexican snooks varied among systems, with higher overlap in the Pom−Atasta system than in the Palizada River. This study indicates that Common Snook and Mexican Snook have developed strategies for spatial partitioning of resources that favor their coexistence in the Usumacinta River delta.

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Illustrating the value of cross-site comparisons: Habitat use by a large, euryhaline fish differs along a latitudinal gradient

Cited by 17 publications

References 30 publications

Tropicalization of temperate ecosystems in North America: The northward range expansion of tropical organisms in response to warming winter temperatures

Tropicalization of temperate ecosystems in North America: The northward range expansion of tropical organisms in response to warming winter temperatures

Trophic resource partitioning of two snook fish species (Centropomidae) in tropical estuaries in Brazil as evidenced by stable isotope analysis

Trophic Ecology and Resource Partitioning of Common Snook and Mexican Snook in the Usumacinta River Delta

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