Life on the Edge: The Ecology of Great Plains Prairie Streams

Dodds, Walter K.; Gido, Keith B.; Whiles, Matt R.; Fritz, Ken M.; Matthews, William J.

doi:10.1641/0006-3568(2004)054[0205:lotete]2.0.co;2

Cited by 336 publications

(392 citation statements)

References 41 publications

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“…Several studies have demonstrated the importance of cease-to-flow events in excluding certain species from some rivers (e.g. Dodds et al 2004;Bond et al 2010Bond et al , 2011. Such patterns are likely to arise from both direct habitat loss (drying) and the rapid changes in water quality (increasing temperatures and decreased dissolved oxygen) when flows cease (Boulton and Lake 1990).…”

Section: Freshwater Speciesmentioning

confidence: 99%

Detecting range shifts among Australian fishes in response to climate change

Booth

Bond

Macreadie

2011

Mar. Freshwater Res.

145

136

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Abstract. One of the most obvious and expected impacts of climate change is a shift in the distributional range of organisms, which could have considerable ecological and economic consequences. Australian waters are hotspots for climate-induced environmental changes; here, we review these potential changes and their apparent and potential implications for freshwater, estuarine and marine fish. Our meta-analysis detected ,300 papers globally on 'fish' and 'range shifts', with ,7% being from Australia. Of the Australian papers, only one study exhibited definitive evidence of climate-induced range shifts, with most studies focussing instead on future predictions. There was little consensus in the literature regarding the definition of 'range', largely because of populations having distributions that fluctuate regularly. For example, many marine populations have broad dispersal of offspring (causing vagrancy). Similarly, in freshwater and estuarine systems, regular environmental changes (e.g. seasonal, ENSO cycles -not related to climate change) cause expansion and contraction of populations, which confounds efforts to detect range 'shifts'. We found that increases in water temperature, reduced freshwater flows and changes in ocean currents are likely to be the key drivers of climateinduced range shifts in Australian fishes. Although large-scale frequent and rigorous direct surveys of fishes across their entire distributional ranges, especially at range edges, will be essential to detect range shifts of fishes in response to climate change, we suggest careful co-opting of fisheries, museum and other regional databases as a potential, but imperfect alternative.

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Section: Freshwater Speciesmentioning

confidence: 99%

Detecting range shifts among Australian fishes in response to climate change

Booth

Bond

Macreadie

2011

Mar. Freshwater Res.

145

136

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“…Effects of wetland edges on birds might differ from effects of roads and croplands because wetlands are a natural part of the mixed-grass prairie ecosystem (Dodds et al 2004). We hypothesize that evolutionary history has allowed birds to develop consistent and predictable responses to wetland edges in that each species should exhibit a response to wetland edges.…”

Section: Introductionmentioning

confidence: 98%

Grassland Bird Responses to Three Edge Types in a Fragmented Mixed-Grass Prairie

Sliwinski¹,

Koper²

2012

ACE

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ABSTRACT. One possible factor that may have contributed to the decline of grassland bird populations is edge avoidance. In the mixed-grass prairie, habitat fragmentation is often caused by juxtaposition of habitats with vegetation that is structurally similar to prairie, making it difficult to understand why birds avoid habitat edges. We hypothesized that display height or resource-use strategy, i.e., the degree to which a species depends on grassland habitat, might explain variation in sensitivity to habitat edges among different species of grassland birds. To test our hypotheses, we used data on the abundance of grassland birds in native mixed-grass prairie fields in southern Alberta, Canada, from 2000 to 2002. Point counts were conducted up to 4.1 km from croplands, 2.2 km from roads, and 1.8 km from wetlands. We used nonlinear regression models to determine the distance at which relative abundance of 12 bird species changed in response to edge, and linear regression to determine if display height or resource-use strategy explained variation in response to different types of edges. Variation in response to edge was not explained by display height or resource-use strategy. However, six species avoided wetland edges, two avoided roads, and four avoided cropland. Two species of conservation concern, Chestnut-collared Longspurs (Calcarius ornatus) and Sprague's Pipits (Anthus spragueii), declined in abundance by 25% or more within 1.95 km and 0.91 km, respectively, of cropland edges. Because Chestnut-collared Longspurs avoided croplands to at least 1.95 km, it will be important to prevent further fragmentation of mixed-grass prairies by agriculture.RÉSUMÉ. L'évitement des bordures est un des facteurs avancés dans le déclin des populations d'oiseaux de prairie. Dans la prairie mixte, la fragmentation d'habitat se présente souvent sous la forme d'une juxtaposition de milieux dont la végétation est structurellement similaire à la prairie, ce qui rend difficile de comprendre pourquoi les oiseaux évitent les bordures d'habitat. Nous avons émis l'hypothèse voulant que la hauteur de parade ou la stratégie d'utilisation des ressources, c'est-à-dire à quel degré une espèce dépend de l'habitat de prairie, expliquerait peut-être la variation de sensibilité aux bordures chez différentes espèces d'oiseaux de prairie. Afin de tester notre hypothèse, nous avons utilisé des données d'abondance des oiseaux de prairie dans des champs de prairie mixte naturelle du sud de l'Alberta, au Canada, de 2000 à 2002. Des dénombrements par points d'écoute ont été effectués jusqu'à 4,1 km de terres cultivées, jusqu'à 2,2 km de routes et jusqu'à 1,8 km de milieux humides. Nous avons utilisé la régression non linéaire dans le but de déterminer la distance à laquelle l'abondance relative de 12 espèces d'oiseaux changeait en réaction aux bordures, et la régression linéaire pour établir si la hauteur de parade ou la stratégie d'utilisation des ressources expliquait la variation de réaction selon les différents types de bordure. La variation dans l...

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“…Because backwater areas historically would be frequently created and lost in prairie streams, re-colonization of these depopulated areas was likely an important aspect in the evolutionary history of plains topminnow. However, lowered water tables, drought, and the construction of culverts and dams likely limit re-colonization by plains topminnow (Winston et al 1991, Dodds et al 2004. Although this has not specifically been examined for plains topminnow, barriers and loss of stream connectivity has been shown in the decline of other prairie stream fishes, including the Arkansas darter Etheostoma cragini (Labbe & Fausch 2000).…”

Section: Potential Threatsmentioning

confidence: 99%

Changes in range-wide distribution of plains topminnow Fundulus sciadicus

Pasbrig¹,

Koupal²,

Schainost³

et al. 2012

Endang. Species. Res.

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Globally, riverine fishes are affected by degradation of habitat, stream alterations, lost stream connectivity and introduction of non-native species. The plains topminnow Fundulus sciadicus, a small stream-dwelling fish, currently does not have a federal conservation status in the USA; however, anecdotal reports have suggested its decline for the last 20 yr. Our goals were to evaluate the validity of its reported decline and to determine the current range-wide status of this species. We identified 927 historical sites (1889−1999) of occurrence and compiled recent records or re-visited 667 sites (2000−2010). We found plains topminnow at 189 (28.0%) of these sites. Although Nebraska represented the center of distribution and included 66.7% of all historical sites, plains topminnow were only found at 34.4% of historical sites, with the largest declines observed in the Platte and Republican River drainages. Current sampling efforts in Colorado, Missouri, Oklahoma, South Dakota and Wyoming found similar declines. In Iowa and Kansas, plains topminnow was not found, whereas potential increases in distribution were observed in a single drainage in Minnesota and Wyoming. In addition to our sampling efforts, we repeatedly sampled 40 sites within Nebraska to determine detection probability. Detection probabilities for plains topminnow were consistent at 0.76 ± 0.05 (mean ± SE) among sites that were sampled with a single visit. Further research is needed on the species and the potential threats to its occupation of sites, as no singular cause for decline seems plausible. Observed threats include degradation and loss of habitat and shifts in species assemblages towards generalist non-native species. 16: 235-247, 2012 ditionally, lotic systems are geographically expansive and can be influenced by multiple alterations and disturbances at the same time, which makes determining the primary causes for species decline and loss difficult (McCartney 2002). KEY WORDS: Fundulus sciadicus · Plains topminnow · Fundulidae · Endemic · Decline · Threat Resale or republication not permitted without written consent of the publisher Contribution to the Theme Section 'Endangered river fish: threats and conservation options' OPEN PEN ACCESS CCESSEndang Species ResThe plains topminnow Fundulus sciadicus is en demic to the central United States (Fig. 1) with 2 disjunct populations (Lee et al. 1980). The largest distribution is centered in Nebraska and extends to north eastern Colorado, southwestern Wyoming, southern South Dakota, southwestern Minnesota and Iowa (Baxter & Stone 1995, Weitzel 2002, Rahel & Thel 2004. The second population is centered in Missouri and ex tends from Kansas south to Oklahoma (Pflieger 1997) (Fig. 2). The plains topminnow is currently ranked as globally secure according to the Natural Heritage database (NatureServe 2011). However, all states in the native range, except Oklahoma, recognize some level of concern for plains topminnow. In Iowa and Kansas, plains topminnow is presumed extirpated (Harlan et al...

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Life on the Edge: The Ecology of Great Plains Prairie Streams

Cited by 336 publications

References 41 publications

Detecting range shifts among Australian fishes in response to climate change

Detecting range shifts among Australian fishes in response to climate change

Grassland Bird Responses to Three Edge Types in a Fragmented Mixed-Grass Prairie

Changes in range-wide distribution of plains topminnow Fundulus sciadicus

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