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679 results for “Crayfishes”
Supplementary material 4 from: Grimm J, Dick JTA, Verreycken H, Jeschke JM, Linzmaier S, Ricciardi A (2020) Context-dependent differences in the functional responses of conspecific native and non-native crayfishes. NeoBiota 54: 71-88. https://doi.org/10.3897/neobiota.54.38668
: Data type: measurement
Supplementary material 5 from: Grimm J, Dick JTA, Verreycken H, Jeschke JM, Linzmaier S, Ricciardi A (2020) Context-dependent differences in the functional responses of conspecific native and non-native crayfishes. NeoBiota 54: 71-88. https://doi.org/10.3897/neobiota.54.38668
: Data type: measurement
Supplementary material 2 from: Grimm J, Dick JTA, Verreycken H, Jeschke JM, Linzmaier S, Ricciardi A (2020) Context-dependent differences in the functional responses of conspecific native and non-native crayfishes. NeoBiota 54: 71-88. https://doi.org/10.3897/neobiota.54.38668
: Data type: statistical data
FIGURE 18. Partial cladogram modified from Taylor & Knouft 2006 showing Clade D in Review of crayfish color patterns in the Family Cambaridae (Astacoidea), with discussion of their possible importance
FIGURE 18. Partial cladogram modified from Taylor & Knouft 2006 showing Clade D.
FIGURE 29 in Review of crayfish color patterns in the Family Cambaridae (Astacoidea), with discussion of their possible importance
FIGURE 29. Similarity of carapace saddles between Faxonius durelli and Procambarus vioscai paynei.
FIGURE 28 in Review of crayfish color patterns in the Family Cambaridae (Astacoidea), with discussion of their possible importance
FIGURE 28. Color pattern of Procambarus nigrocinctus. Photo by Dan Johnson.
FIGURE 17 in Review of crayfish color patterns in the Family Cambaridae (Astacoidea), with discussion of their possible importance
FIGURE 17. Color pattern variation seen in specimens identified as Cambarus striatus from Alabama.
FIGURE 15 in Review of crayfish color patterns in the Family Cambaridae (Astacoidea), with discussion of their possible importance
FIGURE 15. Color morphs in Procambarus clarkii.
Supplementary material 4 from: Rusch JC, Mojžišová M, Strand DA, Svobodová J, Vrålstad T, Petrusek A (2020) Simultaneous detection of native and invasive crayfish and Aphanomyces astaci from environmental DNA samples in a wide range of habitats in Central Europe. NeoBiota 58: 1-32. https://doi.org/10.3897/neobiota.58.49358
Table S4
Supplementary material 2 from: Rusch JC, Mojžišová M, Strand DA, Svobodová J, Vrålstad T, Petrusek A (2020) Simultaneous detection of native and invasive crayfish and Aphanomyces astaci from environmental DNA samples in a wide range of habitats in Central Europe. NeoBiota 58: 1-32. https://doi.org/10.3897/neobiota.58.49358
Table S2
Supplementary material 3 from: Rusch JC, Mojžišová M, Strand DA, Svobodová J, Vrålstad T, Petrusek A (2020) Simultaneous detection of native and invasive crayfish and Aphanomyces astaci from environmental DNA samples in a wide range of habitats in Central Europe. NeoBiota 58: 1-32. https://doi.org/10.3897/neobiota.58.49358
Table S3
Supplementary material 1 from: Rusch JC, Mojžišová M, Strand DA, Svobodová J, Vrålstad T, Petrusek A (2020) Simultaneous detection of native and invasive crayfish and Aphanomyces astaci from environmental DNA samples in a wide range of habitats in Central Europe. NeoBiota 58: 1-32. https://doi.org/10.3897/neobiota.58.49358
Table S1
Data from: More invaders do not result in heavier impacts: the effects of nonnative bullfrogs on native anurans are mitigated by high densities of nonnative crayfish
1.With accelerating species introductions in an era of globalization, co-occurring alien species have become increasingly common. Understanding the combined ecological impacts of multiple invaders is not only crucial for wildlife managers attempting to ameliorate biodiversity loss but also provides key insights into invasion success and species coexistence mechanisms in natural ecosystems. Compared with much attentions given to single invader impacts, little is known about the impacts of multiple co-occurring invaders. 2.The American bullfrog (Lithobates catesbeianus = Rana catesbeiana) and the red swamp crayfish (Procambarus clarkii) are two aquatic invasive species in many different areas of the globe. They co-exist with native anurans in a variety of permanent lentic waters, which provide an ideal model system to explore the combined effects of multiple invaders from different trophic levels on native species. 3.Based on a global diet analysis covering 34 native and invasive bullfrog populations, and data from 10-year field surveys across 157 water bodies in the Zhoushan Archipelago, China, we observed a reduced impact of bullfrogs on native anurans at high crayfish densities when the two invaders co-occurred. 4.The global diet analysis showed that crayfish occurrence reduced the number of native anuran prey consumed by bullfrogs in both native and invasive populations. After accounting for pseudoreplication of different observations among water bodies, islands, and survey time, model averaging analyses based on generalized linear mixed models (GLMMs) showed a negative relationship between bullfrog density and native anuran densities for field observations of invasive bullfrogs alone and co-invaded observations with low crayfish density. However, this negative relationship disappeared when the two invaders co-occurred with high crayfish density. Structural equation modeling (SEM) analyses further validated that the impacts of bullfrogs on native frogs were mitigated by the negative interactions between crayfish and bullfrogs. 5.Our results provide novel evidence of a density-dependent antagonistic effect of two sympatric invaders from different trophic levels on native species. This study highlights the importance of considering complex interactions among co-invaders and native species when prioritizing conservation and management actions and will facilitate the development of a more precise framework to predict invasion impacts.
FIGURE 4 in Cambarus (Depressicambarus) clairitae, a new species of crayfish (Decapoda: Cambaridae) from Alabama with a review of the halli Group in the subgenus Depressicambarus
FIGURE 4. Color variations of Cambarus (Depressicambarus) clairitae n. sp.
FIGURE 7 in Cambarus (Depressicambarus) clairitae, a new species of crayfish (Decapoda: Cambaridae) from Alabama with a review of the halli Group in the subgenus Depressicambarus
FIGURE 7. Dorsal view of rostrum and acumen of: A. Cambarus clairitae, n. sp.; B. C. englishi.
FIGURE 2. Cambarus hatfieldi n in Cambarus (C.) hatfieldi, a new species of crayfish (Decapoda: Cambaridae) from the Tug Fork River Basin of Kentucky, Virginia and West Virginia, USA
FIGURE 2. Cambarus hatfieldi n. sp., holotype (USNM 1227861) in life.
FIGURE 13 in Two new crayfishes of the genus Cambarus (Decapoda: Cambaridae) from Northern Alabama and South Central Tennessee, U. S. A.
FIGURE 13. Cambarus (H.) diupalma form I male from type locality. Photo from Guenter Schuster.
FIGURE 11 in Two new crayfishes of the genus Cambarus (Decapoda: Cambaridae) from Northern Alabama and South Central Tennessee, U. S. A.
FIGURE 11. Collection sites for Cambarus (H.) andersoni and C. (H.) diupalma.
FIGURE 1 in Two new crayfishes of the genus Cambarus (Decapoda: Cambaridae) from Northern Alabama and South Central Tennessee, U. S. A.
FIGURE 1. Range of Cambarus (H.) longirostris Faxon, 1885
FIGURE 2 in Two new crayfishes of the genus Cambarus (Decapoda: Cambaridae) from Northern Alabama and South Central Tennessee, U. S. A.
FIGURE 2. Morphological measurements used in statistical analyses.
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