Results 71 to 80 of about 5,244 (196)
The Overlooked Threat of Global Warming on Elasmobranch Fertility
ABSTRACT Climate change is increasingly recognised as a critical threat to global biodiversity, yet its impacts on reproductive processes remain poorly understood in many marine taxa. Elasmobranchs (sharks, skates and rays) represent a particularly vulnerable group due to their peculiar life histories, low fecundity, and diverse reproductive modes.
Noémie Coulon +3 more
wiley +1 more source
Seed traits and germination in the Cactaceae family: A review across Americas
Background: Cactaceae is the fifth taxonomic group with the highest proportion of threatened species and among the angiosperms, the most vulnerable to human disturbance.
Duniel Barrios +3 more
doaj +1 more source
Ultrastructural evidence for completion of the entire miracidial maturation in intrauterine eggs of the digenean Brandesia turgida (Brandes, 1888) (Plagiorchiida: Pleurogenidae) [PDF]
Results of this TEM study provide ultrastructural evidence that miracidial morphogenesis is fully completed within the intrauterine eggs situated in the most posterior uterine regions of the pleurogenid trematode Brandesia turgida (Brandes, 1888).
Conn, David Bruce +4 more
core +2 more sources
ORCHIDEE‐MAN: Incorporating Mangrove Processes in the Global Vegetation Model of ORCHIDEE
Abstract The mangrove ecosystem is characterized by high carbon sequestration rates and plays a crucial role for the exchange of carbon between land and ocean. Understanding the carbon dynamics of mangroves under climate change and human disturbances is therefore essential for quantifying their contributions to global carbon cycle.
Zhe Zhao +13 more
wiley +1 more source
ABSTRACT Aim We investigated the biogeographic consequences of chromosomal speciation, or structural changes in chromosome arrangement that lead to reproductive isolation, an intriguing speciation mechanism with implications for the phylogenetic and geographic distribution of species and chromosomal diversity. Location. North and Central America. Taxa.
Isaac W. Krone, Erin P. Westeen
wiley +1 more source
Post-natal parental care in a Cretaceous diapsid from northeastern China [PDF]
Post-natal parental care seems to have evolved numerous times in vertebrates. Among extant amniotes, it is present in crocodilians, birds, and mammals. However, evidence of this behavior is extremely rare in the fossil record and is only reported for two
B.C.R. Bertram +44 more
core +1 more source
This study examines the embryonic development of Anguis colchica across three stages, highlighting key morphological and skeletal features. Ossification begins before stage 6, with cranial bones forming early, while frontal and parietal bones remain unfused at stage 7.
Elif Yıldırım Caynak +5 more
wiley +1 more source
Amphibians exhibit a large diversity in reproductive and developmental strategies, which in turn are linked to their body size, life history and habitat. Here, we explore why terrestrial egg laying frogs are on average smaller than aquatic egg laying ones and whether this pattern also exists in salamanders.
Benjamin Cejp, Eva Maria Griebeler
wiley +1 more source
During the studies on the invertebrate fauna of the subterranean part of the “Wieliczka” Salt Mine in Wieliczka, Poland, the presence of many specimens of the dipteran species Meoneura obscurella (Fallén 1823) was observed.
G. Kłys, B. Lis
doaj +1 more source

