Article
Marine & Freshwater Biology
Willem Kaijser, Daniel Hering, Armin W. Lorenz
Summary: This study reveals the hierarchy of variables determining riverine macrophyte distribution, with river hydromorphology playing a more important role than surface water chemistry. The results indicate that a broader range of stressors should be considered for the management and enhancement of macrophyte diversity.
Article
Plant Sciences
Eric M. Lund, Deanne C. Drake
Summary: The study examined the relationship between wet and dry mass for thirteen common submersed freshwater macrophytes during the peak growing season, finding a predictable linear relationship for all species. The species-specific dry:wet mass ratios provided supplemental data for some species and introduced novel information for others.
Article
Forestry
Justyna Szatniewska, Ina Zavadilova, Ondrej Nezval, Jan Krejza, Peter Petrik, Matjaz Cater, Marko Stojanovic
Summary: Recent changes in hydrological management and climate in Central Europe have caused severe degradation of floodplain forests. This study examines the sensitivity of trees to drought and found that different tree species have different responses to drought conditions. However, they are able to adapt to these conditions.
FOREST ECOLOGY AND MANAGEMENT
(2022)
Article
Biodiversity Conservation
Igor Zelnik, Mateja Germ, Urska Kuhar, Alenka Gaberscik
Summary: This study discussed macrophyte communities in wetlands along the Drava river in Slovenia, focusing on the presence of alien invasive species Elodea canadensis and E. nuttallii and their correlation with environmental parameters. The research found that the abundance of E. nuttallii was positively correlated with water temperature.
Review
Plant Sciences
Hisashi Kato-Noguchi
Summary: Imperata cylindrica, a plant native to Southeast Asia and East Africa, is known to have allelopathic effects. It can inhibit the germination and growth of other plant species, contributing to its invasiveness and the formation of large monospecific stands.
Article
Plant Sciences
Lisbeth D. R. Henriksen, Mette B. Larsen, Trine J. Johnsen, Soren E. Larsen, Tenna Riis, Annette Baattrup-Pedersen
Summary: The decline in biodiversity in freshwater ecosystems is a global concern. In Denmark, historical records show that several species within the plant genus Potamogeton, which were once widespread in Danish freshwater ecosystems, are now experiencing severe decline. This study examines root development in different Potamogeton species and finds that common species exhibit faster and more abundant root growth compared to declining species.
Article
Biodiversity Conservation
Yuyu Wang, Wenzhuo Tan, Bin Li, Li Wen, Guangchun Lei, April Blakeslee
Summary: This study in the Middle-lower Yangtze River Region in China found that human disturbance can lead to changes in isotopic niche space and overlap between introduced red swamp crayfish and native oriental river shrimp and freshwater snail, potentially increasing competition, especially in modified habitats. The exotic crayfish showed greater competitive superiority over the native species, with changes in niche width and overlap depending on habitat modification.
DIVERSITY AND DISTRIBUTIONS
(2021)
Article
Environmental Sciences
Adam J. Sepulveda, Christine E. Dumoulin, Denise L. Blanchette, John McPhedran, Colin Holme, Nathan Whalen, Margaret E. Hunter, Christopher M. Merkes, Catherine A. Richter, Matthew E. Neilson, Wesley M. Daniel, Devin N. Jones, David R. Smith
Summary: Environmental DNA (eDNA) sampling is useful for early detection of introduced species, but integrating eDNA results into rapid response programs is challenging. In this study, a structured decision making (SDM) framework was used to evaluate appropriate responses to hypothetical eDNA early detections of aquatic plants in Sebago Lake and mussels in Jordanelle Reservoir. The results showed that eDNA detections were not actionable in Sebago Lake due to spatial constraints and acceptable management activities, while in Jordanelle Reservoir, eDNA detections supported management actions to contain the invasion. The divergent outcomes highlight the usefulness of the SDM approach for eDNA monitoring programs.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Biodiversity Conservation
Andrew S. Brainard, Valerie A. Luzadis, Kimberly L. Schulz
Summary: The study found that propagule risk can explain spatial variability in macrophyte invasions, while area-specific biomass in invaded lakes can be correlated with watershed and in-lake water properties. In lakes with increased suitable habitat, invasive macrophytes may dominate aquatic plant assemblages.
BIOLOGICAL INVASIONS
(2021)
Article
Plant Sciences
Fernanda Moreira Florencio, Marcio Jose Silveira, Sidinei Magela Thomaz
Summary: The study showed that the maximum invasion depth of Hydrilla verticillata and Egeria najas increases with water transparency, but Hydrilla verticillata increases at a faster rate. The biomass of both species peaks at intermediate depths, with Hydrilla verticillata showing a preference for deeper regions.
ACTA BOTANICA BRASILICA
(2021)
Article
Biodiversity Conservation
Radoslav Smolak, Elizabeth J. Walsh
Summary: This study assessed the factors influencing rotifer species richness and composition in waterbodies across an altitudinal gradient in Kenya. The results showed that species richness was strongly influenced by environmental factors and macrophyte abundance.
Review
Marine & Freshwater Biology
Sidinei Magela Thomaz
Summary: The flood pulse plays a crucial role in influencing the success of non-native species in river floodplain ecosystems. It enhances invasion by connecting habitats, spreading propagules, and altering environmental filters. Additionally, the flood pulse is affected by river regulation and global changes, ultimately impacting invasion success.
Article
Environmental Sciences
Monique Nunes, Daniel A. Lemley, Janine B. Adams
Summary: Nutrient pollution is causing the spread of invasive aquatic plants in various water bodies. This study examined the response of aquatic macrophytes in two estuaries with different nutrient inputs. The study found that effluent discharge from wastewater treatment plants promoted the establishment of invasive alien aquatic plants in one estuary, while nutrient pulses associated with high rainfall changed the composition of macrophytes in the other estuary.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Ecology
Andrew R. Mahon, Erin K. Grey, Christopher L. Jerde
Summary: Environmental DNA (eDNA) metabarcoding is a promising tool for estimating biodiversity and detecting invasive species, especially in aquatic systems. However, the usefulness of eDNA metabarcoding may be limited by the availability of reference libraries containing target sequences. This study focuses on fish in the Laurentian Great Lakes region and provides a synthesis of known species and evaluates primer pairs commonly used in fish eDNA metabarcoding. The results can improve confidence in using eDNA metabarcoding for fisheries conservation and management in the region.
ECOLOGICAL APPLICATIONS
(2022)
Article
Environmental Sciences
Laszlo Demeter, Abel Peter Molnar, Akos Bede-Fazekas, Kinga Ollerer, Anna Varga, Klara Szabados, Marko Tucakov, Alen Kis, Marianna Biro, Jelena Marinkov, Zsolt Molnar
Summary: The study demonstrated that cattle grazing is effective in controlling invasive alien shrub species in floodplain ecosystems. Moderate or intensive grazing can enhance local biodiversity, reduce flood risk, and provide additional grazing areas for the community.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Ecology
Dieison Andre Moi, Diego Correa Alves, Pablo Augusto Poleto Antiqueira, Sidinei Magela Thomaz, Franco Teixeira de Mello, Claudia Costa Bonecker, Luzia Cleide Rodrigues, Raul Garcia-Rios, Roger Paulo Mormul
Summary: The study applied Bayesian latent variable regression and structural equation model to analyze the transition mechanisms between different vegetation states in a shallow lake and found the effects of nutrients and predators on these states.
Article
Biodiversity Conservation
Renata Ruaro, Eder Andre Gubiani, Sidinei Magela Thomaz, Roger Paulo Mormul
Summary: Multimetric indices are commonly used to evaluate ecosystem health, but many do not adequately account for the impact of nonnative species. A systematic review highlighted the lack of consideration for nonnative species in MMIs, suggesting a need for their inclusion in biomonitoring programs to improve assessment accuracy.
BIOLOGICAL INVASIONS
(2021)
Article
Limnology
Camila Gentilin-Avanci, Gisele D. Pinha, Danielle K. Petsch, Roger P. Mormul, Sidinei M. Thomaz
Summary: The study found that the invasive macrophyte Hydrilla verticillata did not affect the taxonomic and functional diversity of the native macrophyte Egeria najas, but had a negative impact on the functional richness and beta diversity of Chironomidae insects.
Article
Ecology
Tatiane Mantovano, Dayani Bailly, Jose Hilario Delconte Ferreira, Eliezer de Oliveira da Conceicao, Fernanda A. S. Cassemiro, Ramiro de Campos, Roger Paulo Mormul, Thiago Fernando Rangel, Fabio Amodeo Lansac-Toha
Summary: This study evaluated the effects of climate change on the invasive potential of D. lumholtzi and identified the environmental suitability of non-native river basins for invasion by this species globally. Predictions suggest that future climate change will expand the distribution of D. lumholtzi in North America and Europe, with many river basins becoming susceptible to invasion in Europe which are not vulnerable currently.
FRESHWATER BIOLOGY
(2021)
Article
Limnology
Roger P. Mormul, Dieison A. Moi, Sidnei Pressinatte-Junior, Gilmar Perbiche-Neves, Alice M. Takeda
Summary: Water-level oscillations play a significant role in shaping the community structure and diversity of chironomid larvae in tropical lakes. Environmental factors have a greater impact on chironomid composition during low-water-level periods compared to high-water-level periods. Extreme low- and high-water-level periods in floodplain systems may become more frequent and intense in the future, affecting the richness, density, and temporal beta-diversity of chironomids.
Article
Environmental Sciences
Jessica Ernandes-Silva, Dieison Andre Moi, Vanessa Ernandes de Amo, Marcio Jose Silveira, Barbara Furrigo Zanco, Roger Paulo Mormul
Summary: This study investigated the distribution of L. fortunei larval stages in floodplain environments and identified local abiotic filters that affect the density of each larval stage. The results showed that L. fortunei population pyramid is expanding in these environments, with the youngest larval stages accounting for the majority of the density. Abiotic factors such as turbidity, water level, and suspended inorganic matter directly decreased the density of the youngest larval stages, while temperature and pH directly increased the density of older larval stages. Water level indirectly affected the density of the youngest larval stages through its effects on turbidity and suspended inorganic matter.
Article
Plant Sciences
Rodrigo Pedro Leal, Arcio Jose Silveira, Danielle Katharine Petsch, Roger Paulo Mormul, Sidinei Magela Thomaz
Summary: Invasive species show greater resilience to drought but are more negatively affected by interspecific competition compared to native species. The high dominance of invasive species in aquatic ecosystems can be explained by their ability to recover from drought disturbances, while the presence of native species acts as a biotic resistance mechanism.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2022)
Article
Ecology
Dieison A. Moi, Gustavo Q. Romero, Erik Jeppesen, Pavel Kratina, Diego C. Alves, Pablo A. P. Antiqueira, Franco Teixeira de Mello, Bruno R. S. Figueiredo, Claudia C. Bonecker, Aliny P. F. Pires, Louizi S. M. Braghin, Roger P. Mormul
Summary: This study examines the effects of nutrient loading on shallow lakes, and how regime shifts from clear water to turbid or shaded states affect biodiversity and ecosystem functioning. The results show that functional diversity is the best predictor of ecosystem multifunctionality, and that regime shifts towards turbid or shaded states negatively impact taxonomic diversity and functional diversity of fish and zooplankton, leading to decreased multifunctionality.
JOURNAL OF ANIMAL ECOLOGY
(2022)
Article
Limnology
Raul Garcia-Rios, Dieison A. Moi, Adriano S. Melo, Roger P. Mormul
Summary: This study evaluated the influence of colonization limitation on the richness, density, and beta-diversity of insects with strong and/or weak aquatic and aerial dispersal abilities. The results showed that strong dispersers were not affected by colonization limitation, while weak dispersers experienced a significant decrease in richness and density. Additionally, weak dispersers exhibited increased beta diversity, while strong dispersers led to more homogeneous communities.
Article
Biodiversity Conservation
Roger Paulo Mormul, Denner Serafim Vieira, Dayani Bailly, Karina Fidanza, Valeria Flavia Batista da Silva, Weferson Junio da Graca, Vanessa Pontara, Marcelo Leandro Bueno, Sidinei Magela Thomaz, Renio Santos Mendes
Summary: This study estimates the rate of increase and doubling times of new records of 178 invasive alien species (IAS) using a global dataset. It finds that the number of IAS records has exponentially increased with a mean doubling time of around 14 years across the Earth. The records of IAS increased faster in non-native continents, suggesting an exponential expansion of their range size. Each continent has a taxonomic group with a particular increase in IAS records. The study highlights the need for more effective global efforts to control invasions.
BIOLOGICAL INVASIONS
(2022)
Article
Ecology
Dieison A. Moi, Fernando M. Lansac-Toha, Gustavo Q. Romero, Thadeu Sobral-Souza, Bradley J. Cardinale, Pavel Kratina, Daniel M. Perkins, Franco Teixeira de Mello, Erik Jeppesen, Jani Heino, Fabio A. Lansac-Toha, Luiz F. M. Velho, Roger P. Mormul
Summary: Many studies have shown that biodiversity plays a crucial role in maintaining the productivity and functionality of ecosystems. In this study, the researchers investigated the association between species richness, functional diversity, and ecosystem multifunctionality in 72 lakes across four wetlands in Brazil. They found that higher species richness and functional diversity were positively correlated with ecosystem multifunctionality. However, human activities negatively impacted the diversity of aquatic organisms, leading to a decrease in wetland multifunctionality.
NATURE ECOLOGY & EVOLUTION
(2022)
Article
Environmental Sciences
Fernando Miranda Lansac-Toha, Jani Heino, Luis Mauricio Bini, Oscar Pelaez, Matheus Tenorio Baumgartner, Barbara Angelio Quirino, Alfonso Pineda, Bianca Ramos Meira, Fernanda Moreira Florencio, Felipe Rafael Oliveira, Francieli Fatima Bomfim, Marcio Jose Silveira, Mario Sergio Dainez-Filho, Ramiro Campos, Rosa Maria Dias, Claudia Costa Bonecker, Janet Higuti, Roger Paulo Mormul, Evanilde Benedito, Carla Simone Pavanelli, Luzia Cleide Rodrigues, Susicley Jati, Koen Martens, Fabio Amodeo Lansac-Toha, Luiz Felipe Machado Velho
Summary: This study aimed to examine the variations in the cross-taxon congruence of taxonomic and functional beta diversity across space and time. The results partially supported the hypothesis that the strength of cross-taxon congruence is negatively related to between-group functional distance.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Plant Sciences
Fabielle M. Bando, Bruno R. S. Figueiredo, Dieison A. Moi, Sidinei M. Thomaz, Thaisa S. Michelan, Jorge Garcia-Giron, Jani Heino, Janne Alahuhta, Gustavo Q. Romero, Roger P. Mormul
Summary: A growing body of evidence indicates that biological invasions are causing changes in the composition of species in communities over space and time. Previous studies conducted at small scales and short durations may have underestimated the impact of exotic species on native communities.
JOURNAL OF ECOLOGY
(2023)
Article
Ecology
Dieison A. Moi, Margenny Barrios, Giancarlo Tesitore, Maite Burwood, Gustavo Q. Romero, Roger P. Mormul, Pavel Kratina, Leandro Juen, Thaisa S. Michelan, Luciano F. A. Montag, Gabriel M. Cruz, Jorge Garcia-Giron, Jani Heino, Robert M. Hughes, Bruno R. S. Figueiredo, Franco Teixeira de Mello
Summary: Human land-use change poses a significant threat to natural ecosystems globally. This study explores the effects of human land-use on plant and animal communities and their functions, such as biomass production. The findings reveal that intensive human land-uses lead to species loss, trait homogenization, and reduced animal biomass production in streams.
JOURNAL OF ANIMAL ECOLOGY
(2023)
Article
Agronomy
Henrique von Hertwig Bittencourt, Lisandro Tomas da Silva Bonome, Edison Ferreira dos Santos Junior, Alexandre Monkolski, Roger Paulo Mormul, Michelangelo Muzell Trezzi, Jakeline Galvao de Franca Monkolski
Summary: This study aimed to investigate the influence of E. plana rhizosphere soil on wheat germination and initial development. The results showed that the interaction between season and vertical and horizontal soil positions affected normal wheat seed germination and seedling development. The findings suggested that E. plana has seasonality and its influence can vary depending on the distance from the plant tiller base.
JOURNAL OF PLANT PROTECTION RESEARCH
(2022)