Predators Induce Morphological Changes in Tadpoles of Hyla andersonii
نویسندگان
چکیده
منابع مشابه
The tadpoles of Hyla rufitela (Anura: Hylidae).
The validity of the published description of Hyla rufitela is questioned because the origin of the described tadpoles does not correspond to the distribution of this species. The present description, based on tadpoles that were hatched from two egg masses from the Caribbean lowland of Costa Rica, includes tadpoles raised to adult frogs to verify the species. The newly described tadpoles differ ...
متن کاملCorticosterone and Growth in Pacific Treefrog (Hyla regilla) Tadpoles
In all vertebrates, responses to environmental perturbation are regulated to at least some degree by glucocorticoid hormones (GCs). In amphibians, GCs, along with several other hormones, also play an important role in larval growth and development preceding metamorphosis. Given these two well-established functions, GCs might be expected to have a role in the well-documented effects that environ...
متن کاملIntroduced Mammalian Predators Induce Behavioural Changes in Parental Care in an Endemic New Zealand Bird
The introduction of predatory mammals to oceanic islands has led to the extinction of many endemic birds. Although introduced predators should favour changes that reduce predation risk in surviving bird species, the ability of island birds to respond to such novel changes remains unstudied. We tested whether novel predation risk imposed by introduced mammalian predators has altered the parental...
متن کاملNovel features of an inducible defense system in larval tree frogs (Hyla chrysoscelis).
Organisms in aquatic ecosystems must often tolerate variable environmental conditions, including an uncertain risk of predation. Individuals that can maintain plastic defenses against predation will increase their survival when predators are present, but will not incur the costs of these defenses when the risk of predation is low and the defense is not induced. Larvae of the pond-breeding anura...
متن کاملPredator-induced stress makes the pesticide carbaryl more deadly to gray treefrog tadpoles (Hyla versicolor).
Global declines in amphibians likely have multiple causes, including widespread pesticide use. Our knowledge of pesticide effects on amphibians is largely limited to short-term (4-d) toxicity tests conducted under highly artificial conditions to determine lethal concentrations (LC50). We found that if we used slightly longer exposure times (10-16 d), low concentrations of the pesticide carbaryl...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Copeia
سال: 2020
ISSN: 0045-8511
DOI: 10.1643/ce-19-241