scholarly journals The role of abiotic and biotic factors in interspecific competition of Polish crayfish – comprehensive literature review

2020 ◽  
Vol 49 (4) ◽  
pp. 428-441
Author(s):  
Kamil Wiśniewski ◽  
Daniel Szarmach ◽  
Małgorzata Poznańska-Kakareko
Keyword(s):  
Invasive Species ◽  
Interspecific Competition ◽  
Native Species ◽  
Procambarus Clarkii ◽  
Abiotic Factors ◽  
Plant Cover ◽  
Biotic Factors ◽  
Biotic Factor ◽  
Factors Affecting ◽  
Crayfish Species

AbstractInvasive species are those that have been transferred by humans out of their natural range. Native crayfish species in Polish waters include: Astacus astacus and Pontastacus leptodactylus, whereas invasive species are: Pacifastacus leniusculus, Faxonius limosus, Procambarus clarkii and Procambarus virginalis. The objective of this study was to determine how abiotic and biotic environmental factors contribute to interspecific competition of Polish crayfish based on the available literature. Abiotic factors affecting the interspecific competition include tolerance to extreme pH values, calcium ion content, temperature, oxygenation, water salinity, preferred substrate and the type of water bodies. Biotic factors are, inter alia, pathogens, food base, plant cover and interactions in the prey–predator system, as well as interactions between crayfish species. The most important abiotic factors are water temperature and oxygenation, while the most important biotic factor is the crayfish plague – a deadly disease for native species. Each invasive species has a different set of traits and adaptations that enable a successful invasion. However, a successful invasion of a given species is not determined by one, but many adaptations that coexist.

ARBOREAL FLORA OF THE GODOY FOREST STATE PARK, LONDRINA, PR. BRAZIL

2000 ◽  
Vol 57 (1) ◽  
pp. 107-120 ◽  
Author(s):  
F. DAS CHAGAS E SILVA ◽  
L. H. SOARES-SILVA
Keyword(s):  
Native Species ◽  
Abiotic Factors ◽  
Advanced Stage ◽  
Biotic Factors ◽  
Climax Species ◽  
Secondary Species ◽  
Ecological Aspects ◽  
Ecological Parameters ◽  
Remnant Forest

The floristic and ecological aspects of the tree vegetation of a remnant forest in the Godoy Forest State Park were studied. Two hundred and six native species of the region occur in the park. Comments on ecological aspects, such as dispersion, structure of vegetation and succession of these species, are provided. An analysis of the ecological parameters indicated that the occurrence of late secondary and climax species (55.8%) was greater than that of pioneer (6.8%) and early secondary species (34.5%). This seems to indicate a predominant dependence of biotic factors on the abiotic factors and an advanced stage of succession.

scholarly journals Temperature increase impacts personality traits in aquatic non-native species: Implications for biological invasion under climate change

2015 ◽  
Vol 61 (6) ◽  
pp. 966-971 ◽  
Author(s):  
Dapeng Zhao ◽  
Peishan Feng
Keyword(s):  
Climate Change ◽  
Invasive Species ◽  
Personality Traits ◽  
Biological Invasion ◽  
Native Species ◽  
Elevated Temperatures ◽  
Procambarus Clarkii ◽  
Wide Distribution ◽  
Aquatic Animal ◽  
Ecological Compensation

Abstract Climate change, such as elevated temperatures, may facilitate biological invasion. Aquatic animal systems are more vulnerable to biological invasion when the temperature rises. Animal personality also plays an important role in the possibility of successful establishment of invasive species. However, it is still unclear how personality traits of invasive species will respond to global warming. This study focuses on juveniles of red swamp crawfish Procambarus clarkii, an invasive poikilothermic species with wide distribution throughout the world, and explores how slight temperature increases influence three personality traits (activity, boldness and aggressiveness) of P. clarkii. For each personality, individual variation is to be presented in condition of the same temperature. Individual personality values can significantly increase with the subtle rising of water temperature. Significant correlations among activity, boldness and aggressiveness are found at any temperature stage, and such relationships are maintained at a similar level in the face of different temperatures. It is most likely that significant expressions of personality traits may be an ecological compensation strategy to offset increased metabolic costs when faced with small temperature increases. Aggression syndromes are formed due to stable linkages between personality traits, in order to acquire allopatric resources efficiently and establish a new population in this species.

scholarly journals The current distribution of the freshwater crayfish (Decapoda: Astacidae, Cambaridae) in the Neman river basin in Belarus

2020 ◽  
Vol 65 (2) ◽  
pp. 182-190
Author(s):  
A. V. Alekhnovich ◽  
D. V. Molotkov ◽  
K. Śliwińska
Keyword(s):  
Invasive Species ◽  
Alien Species ◽  
River Basin ◽  
Current Distribution ◽  
Native Species ◽  
Local Community ◽  
Freshwater Crayfish ◽  
Gravel Pits ◽  
Native Crayfish ◽  
Crayfish Species

The trends in the distribution and occurrence of the freshwater crayfish in the water bodies of the Neman River basin are presents. It has been shown that both native species: the noble and the narrow-clawed crayfish are declined and/or are displaced with rapidly expanding its range the invasive spiny-cheek crayfish. In recent years the alien species was found in isolated gravel pits and lakes, where it could be transferred only by the human activity. These findings confirm the need of the education about the threats posed by the invasive species on the native biodiversity especially with the local community, which is an obligatory practice for protection the native species in the area expanded with non-native crayfish species. Further, to increase the likelihood of the local biodiversity conservation it is highly needed to undertake targeted actions aimed at resettling endangered populations into waterbodies unavailable for the invasive spiny-cheek crayfish expansion.

scholarly journals Land Conversion, Interspecific Competition, and Bioinvasion in a Tropical Ecosystem

2007 ◽  
Vol 39 (s1) ◽  
pp. 133-147 ◽  
Author(s):  
Edward B. Barbier
Keyword(s):  
Land Use ◽  
Invasive Species ◽  
Land Use Change ◽  
Interspecific Competition ◽  
Native Species ◽  
Ecological Model ◽  
Behavioral Model ◽  
Land Conversion ◽  
Tropical Ecosystem ◽  
Relative Prices

This paper investigates the relationships among land-use change, biological invasion, and interspecific competition in a tropical ecosystem by linking a behavioral model of land conversion by agriculture and an ecological model of interspecific competition between a native species and an exotic invader. The model is used to examine how relative farm prices and access to forest areas influence land clearing and thus the ability of the invasive species to eliminate the native species. Simulations show that only a 20% rise in relative prices and a 2.75% increase in forest access are necessary for this outcome to occur.

Factors Affecting the Distribution of Bot Flies (Diptera: Oestridae) on Islands in Lake Barkley Kentucky and Tennessee

1995 ◽  
Vol 30 (4) ◽  
pp. 513-518 ◽  
Author(s):  
Thomas M. Kollars
Keyword(s):  
Small Mammal ◽  
Island Biogeography ◽  
Abiotic Factors ◽  
Tree Cover ◽  
House Mice ◽  
Biotic Factors ◽  
Mammal Species ◽  
Factors Affecting ◽  
Significant Difference ◽  
Small Mammal Species

The present study analyzes the effect of six abiotic and eight biotic variables on the presence of Cuterebra on islands in Lake Barkley in Kentucky and Tennessee. Abiotic factors were: area, length, distance to mainland, distance to nearest island, elevation, and last inundation. Biotic factors were: tree species diversity (sd), shrub sd, vine sd, and herbaceous sd, percent herbaceous cover, percent tree cover, mammal species, and small mammal sd. A Cuterebra, presumably C. fontinella fontinella (Clark), infested white-footed mice on two islands and house mice on one island. Six other small mammal species were not infested. There was no significant difference between prevalence and sex of host. No correlation between the presence of Cuterebra and biotic or abiotic factors was found (P > 0.05). The presence of house mice did not determine the presence of Cuterebra on islands. Factors associated with island biogeography did not appear to play a role in determining the presence of Cuterebra. Only the presence of white-footed mice was related functionally to the presence of Cuterebra on islands (R2 = 0.85; P < 0.05). Although other small mammals may be found on islands, the occurrence and prevalence of C. fontinella on islands was primarily limited by the presence of white-footed mice regardless of other abiotic or biotic factors.

Abiotic and biotic factors associated with brook trout invasiveness into bull trout streams of the Canadian Rockies

2013 ◽  
Vol 70 (6) ◽  
pp. 905-914 ◽  
Author(s):  
Will G. Warnock ◽  
Joseph B. Rasmussen
Keyword(s):  
Brook Trout ◽  
Native Species ◽  
Abiotic Factors ◽  
Theoretic Approach ◽  
Bull Trout ◽  
Biotic Factors ◽  
Canadian Rockies ◽  
Negatively Associated ◽  
Trout Streams ◽  
Abiotic And Biotic Factors

An information-theoretic approach was used to determine the association between brook trout (Salvelinus fontinalis) invasiveness and a suite of abiotic and biotic factors, measured at 80 sites from 51 streams in the Canadian Rockies. The streams selected had confirmed brook trout invasions and were identified as current or historical nursery habitat for native bull trout (Salvelinus confluentus). The biomass at most sites was strongly or completely dominated (95%–100%) by one species or the other, and sites were classified as having high brook trout invasiveness (>60% of the biomass of the community relative to remnant bull trout) or low invasiveness (<40%). Among abiotic factors, high brook trout invasiveness was positively associated with stream temperature and undercut bank habitat, but negatively associated with large in-stream substrate (cobbles and boulders). Among biotic factors, brook trout invasiveness was negatively associated with co-occurring rainbow trout (Oncorhynchus mykiss) or brown trout (Salmo trutta), two other introduced species. Brook trout appear to dominate communities over native bull trout where thermal or habitat niche opportunities are provided for them, although other non-native species may restrict their invasion into bull trout streams.

The Combined Effects of Multiple Invasive Species on the Persistence of Experimental Populations of Imperiled Pahrump Poolfish

2021 ◽  
Author(s):  
Brandon L. Paulson ◽  
Craig A. Stockwell
Keyword(s):  
Invasive Species ◽  
Native Species ◽  
Procambarus Clarkii ◽  
Active Management ◽  
Adult Survival ◽  
Combined Effects ◽  
Experimental Mesocosms ◽  
Multiple Species ◽  
Southwest Usa ◽  
Native Crayfish

Abstract Many ecosystems have been invaded by more than one non-native species, but research evaluating the combined effects of multiple invasive species has been limited. In the southwest USA, many aquatic systems have been invaded by multiple species such as non-native crayfish and non-native fishes. We used experimental mesocosms to test individual and combined effects of invasive Red Swamp Crayfish, Procambarus clarkii , and Western Mosquitofish, Gambusia affinis , on endangered Pahrump Poolfish, Empetrichthys latos. We found that crayfish alone reduced adult poolfish survival, however crayfish did not limit production of poolfish juveniles. By contrast, mosquitofish had no effect on survival of poolfish adults, but significantly reduced recruitment of juveniles. When both crayfish and mosquitofish were present, both adult survival and juvenile production were significantly decreased. These findings were consistent with the recent decline of a wild poolfish population from over 10,000 fish to less than 1,000 poolfish following the establishment of crayfish and mosquitofish. This study demonstrates that conservation management of the Pahrump Poolfish must have active management and removal of invasive species, otherwise extirpation and eventually extinction will likely occur and provides an example for the compounding effects of multiple invasive species for other study systems.

scholarly journals Environmental abiotic and biotic factors affecting the distribution and abundance of Naegleria fowleri

2020 ◽  
Vol 97 (1) ◽  
Author(s):  
Leigha M Stahl ◽  
Julie B Olson
Keyword(s):  
Current Knowledge ◽  
Abiotic Factors ◽  
Dust Particles ◽  
Biotic Factors ◽  
Naegleria Fowleri ◽  
Free Living ◽  
Factors Affecting ◽  
Wide Ph Range ◽  
Abiotic And Biotic Factors ◽  
Nægleria Fowleri

ABSTRACT Naegleria fowleri is a free-living protozoan that resides in soil and freshwater. Human intranasal amoebae exposure through water or potentially dust particles can culminate in primary amoebic meningoencephalitis, which generally causes death. While many questions remain regarding pathogenesis, the microbial ecology of N. fowleri is even less understood. This review outlines current knowledge of the environmental abiotic and biotic factors that affect the distribution and abundance of N. fowleri. Although the impacts of some abiotic factors remain poorly investigated or inconclusive, N. fowleri appears to have a wide pH range, low salinity tolerance and thermophilic preference. From what is known about biotic factors, the amoebae preferentially feed upon bacteria and are preyed upon by other free-living amoebae. Additional laboratory and environmental studies are needed to fill in knowledge gaps, which are crucial for surveillance and management of N. fowleri in freshwaters. As surface water temperatures increase with climate change, it is likely that this amoeba will pose a greater threat to human health, suggesting that identifying its abiotic and biotic preferences is critical to mitigating this risk.

The effects of abiotic factors and intraspecific versus interspecific competition on the diel activity patterns of Atlantic salmon (Salmo salar) fry

2008 ◽  
Vol 65 (8) ◽  
pp. 1545-1553 ◽  
Author(s):  
Simon Blanchet ◽  
Géraldine Loot ◽  
Louis Bernatchez ◽  
Julian J. Dodson
Keyword(s):  
Rainbow Trout ◽  
Atlantic Salmon ◽  
Interspecific Competition ◽  
Salmo Salar ◽  
Native Species ◽  
Abiotic Factors ◽  
Diel Activity ◽  
Invertebrate Drift ◽  
Atlantic Salmon Salmo Salar ◽  
Daytime Activity

We conducted semi-natural experiments to measure the relative contribution of various environmental factors and intraspecific and interspecific competition with an exotic invader on the daytime and crepuscular activity levels of Atlantic salmon ( Salmo salar ) fry. We demonstrated that interspecific competition with the exotic rainbow trout ( Oncorhynchus mykiss ) significantly increases the daytime activity of Atlantic salmon. The effect of intraspecific competition on the daytime activity of salmon was half that of interspecific competition. This indicates that the effect of rainbow trout was a combination of increasing density and the identity of the competitor. We also demonstrated that the effect of rainbow trout was probably the result of territorial interference between species. Moreover, we showed that water temperature simultaneously played an important role in explaining daytime activity of Atlantic salmon. During twilight, we observed no effect of competition on salmon activity, but environmental cues other than temperature (e.g., invertebrate drift, cloud cover) became significant predictors of activity. Feeding and growth rates of Atlantic salmon were not affected by the different levels of competition. Nevertheless, the exotic species may have a major impact by exposing the native species to increased risks of daytime predation.

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