Results 21 to 30 of about 153 (97)

Pheromones can cull an invasive amphibian without releasing survivors from intraspecific competition

open access: yesEcosphere, Volume 10, Issue 12, December 2019., 2019
Abstract Attempts to cull an invasive species often create a paradoxical situation, whereby the consequent reduction in invader densities frees the survivors from intraspecific competition—and hence, increases the viability of those survivors. Our laboratory experiments with invasive cane toads (Rhinella marina) show that this backfire effect can occur
S. McCann, M. R. Crossland, R. Shine
wiley   +1 more source

Scavenging along an ecological interface: utilization of amphibian and reptile carcasses around isolated wetlands

open access: yesEcosphere, Volume 8, Issue 11, November 2017., 2017
Abstract Scavenging is an influential ecosystem process, providing many weak, but stabilizing food web links. Amphibians and reptiles (i.e., herpetofauna) utilize land/water interfaces and can have large biomasses concentrated here, making them important vectors of nutrients between aquatic and terrestrial systems and a valuable resource to scavengers.
Erin F. Abernethy   +3 more
wiley   +1 more source

Mosquito iDNA Reflects Fine Scale Composition of Tropical Fauna

open access: yesEnvironmental DNA, Volume 7, Issue 6, November–December 2025.
We used mosquito iDNA to investigate fine scale ecological patterns of birds and mammals in the tropical savanna woodlands of Kakadu National Park. Revealing that mammalian richness is influenced by site, while avian richness changes with season. While community composition is influenced by fire during the dry season and vegetation during the wet ...
Christine Chivas   +6 more
wiley   +1 more source

Carcasses of invasive species are predominantly utilized by invasive scavengers in an island ecosystem

open access: yesEcosphere, Volume 7, Issue 10, October 2016., 2016
Abstract Invasive species have significantly affected ecosystems, particularly islands, and species invasions continue with increasing globalization. Largely unstudied, the influence of invasive species on island ecosystem functions, especially scavenging and decomposition, could be substantive.
Erin F. Abernethy   +5 more
wiley   +1 more source

Assembly processes inferred from eDNA surveys of a pond metacommunity are consistent with known species ecologies

open access: yesEcography, Volume 2025, Issue 6, June 2025.
Technological advances are enabling ecologists to conduct large‐scale and structured community surveys. However, it is unclear how best to extract information from these novel community data. We metabarcoded 48 vertebrate species from their eDNA in 320 ponds across England and applied the ‘internal structure' approach, which uses joint species ...
Wang Cai   +9 more
wiley   +1 more source

Toxicity Effects of Toad (Rhinella jimi Stevaux, 2002) Venom in Chicken (Gallus gallus domesticus)

open access: yesThe Scientific World Journal, Volume 2014, Issue 1, 2014., 2014
This study aimed to evaluate the pathological changes that occur after administering different doses of R. jimi (Stevaux, 2002) parotoid glands secretion to Gallus gallus domesticus chicks. Twenty‐three animals were used in this study and were divided into 5 groups that received a toad venom dose of 0, 3.0 mg/kg, 6.0 mg/kg, 10.0 mg/kg, and 25.0 mg/kg ...
Ivana Cristina Nunes Gadelha   +5 more
wiley   +1 more source

Differences and Similarities among Parotoid Macrogland Secretions in South American Toads: A Preliminary Biochemical Delineation

open access: yesThe Scientific World Journal, Volume 2013, Issue 1, 2013., 2013
Amphibians are known by cutaneous glands, spread over the skin, containing toxins (proteins, peptides, biogenic amines, steroidal bufadienolides, and alkaloids) used as chemical defense against predators and microbial infection. Toads are characterized by the presence of parotoid macroglands.
Juliana Mozer Sciani   +6 more
wiley   +1 more source

Natural Products from Ethnodirected Studies: Revisiting the Ethnobiology of the Zombie Poison

open access: yesEvidence-Based Complementary and Alternative Medicine, Volume 2012, Issue 1, 2012., 2012
Wade Davis′s study of Haitian “zombification” in the 1980s was a landmark in ethnobiological research. His research was an attempt to trace the origins of reports of “undead” Haitians, focusing on the preparation of the zombification poison. Starting with this influential ethnopharmacological research, this study examines advances in the pharmacology ...
Ulysses Paulino Albuquerque   +13 more
wiley   +1 more source

Avaliações clínicas e laboratoriais da intoxicação experimental por veneno de sapo em cães

open access: yes, 2006
O presente trabalho teve por objetivo avaliar os aspectos clínico, laboratorial, eletrocardiográfico de cães intoxicados por veneno de sapo, além de verificar a resposta ao tratamento com propranolol.
Camplesi, Annelise Carla
core   +2 more sources

Bufo (Anaxyrus) williamsi Tracy 2017

open access: yes, 2017
Bufo (Anaxyrus) williamsi. sp. nov. DIXIE VALLEY TOAD (FIG. 2b, FIG.4) Holotype. CAS 259271 (CALIfORNIA AcADEMY Of ScIENcE HERPETOLOGY COLLEcTION), ADULT MALE (FIG.
Michelle R. Gordon   +2 more
core   +1 more source

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