Zoology Commons^™

Testosterone, Progesterone, And Fsh Levels In Pimpla Turionellae L. (Hymenoptera: Ichneumonidae) And Its Host Galleria Mellonella L. (Lepidoptera: Pyralidae), Fevzi̇ Uçkan, Deni̇z Çevi̇rgen, Ayli̇n Er

Turkish Journal of Zoology

Various vertebrate-type steroid and gonadotropin hormones have been identified in invertebrates, including insects; however, studies in this area are not sufficient to presume a generalized role for these hormones. We identified testosterone, progesterone, and follicle-stimulating hormone (FSH) in the whole-body homogenates of Galleria mellonella L. (Lepidoptera: Pyralidae) and its parasitoid Pimpla turionellae L. (Hymenoptera: Ichneumonidae). Testosterone concentration significantly decreased from early instars to last instars and pupal stages of G. mellonella; however, no significant difference was observed in progesterone levels at different stages. FSH concentration reached the highest level at the pupal stage of G. mellonella. No significant difference was …

First Record Of Metatropis Rufescens (Hemiptera: Heteroptera: Berytidae) From Turkey, Petr Kment, Meral Fent

Turkish Journal of Zoology

The stilt bug Metatropis rufescens (Herrich-Schaeffer, 1835) (Hemiptera: Heteroptera: Berytidae) is reported as a new record for Turkey and also represents the first record of the tribe Metatropini Henry, 1997 for the Turkish fauna. The specimens of the species were collected from its host plant, Circaea lutetiana L. (Onagraceae), in the forest area of Rize Province. The biology and habitat characteristics of the species are briefly discussed.

Impacts Of Urbanisation On The Native Avifauna Of Perth, Western Australia, Robert Davis, C Gole, Jd Roberts

Research outputs 2012

Urban development either eliminates, or severely fragments, native vegetation, and therefore alters the distribution and abundance of species that depend on it for habitat. We assessed the impact of urban development on bird communities at 121 sites in and around Perth, Western Australia. Based on data from community surveys, at least 83 % of 65 landbirds were found to be dependent, in some way, on the presence of native vegetation. For three groups of species defined by specific patterns of habitat use (bushland birds), there were sufficient data to show that species occurrences declined as the landscape changed from variegated …

Chemical Defense In The Cave-Dwelling Millipede Brachydesmus Troglobius Daday, 1889 (Diplopoda, Polydesmidae), Slobodan E. Makarov, Ljubodrag V. Vujisić, Božidar P. M. Ćurčić, Bojan S. Ilić, Vele V. Tešević, Vlatka E. Vajs, Ivan M. Vučković, Bojan M. Mitić, Luka R. Lučić, Iris Ž. Đorđević

International Journal of Speleology

The troglomorphic millipede Brachydesmus troglobius Daday, 1889 (Polydesmida: Polydesmidae) secretes allomones from glands on both lateral surfaces of its body segments. The secretion was identified by gas chromatography-mass spectrometry (GC-MS) analysis with electron and chemical ionization, and was shown to be composed of a mixture of benzaldehyde, benzyl alcohol, benzoylnitrile, benzoic acid and mandelonitrile benzoate. Hydrogen cyanide was qualitatively identified by the picric acid test. This is the first identification of these compounds in a cave-dwelling polydesmid.

The World’S Deepest Subterranean Community - Krubera-Voronja Cave (Western Caucasus), Alberto Sendra, Ana Sofia P.S. Reboleira

International Journal of Speleology

Subsurface biota extends over a wide variety of habitats that can be spatially interconnected. The largest communities of this subsurface biota inhabit cavities and are well known mainly in caves where biologists are able to have access. Data about deep subterranean communities and arthropods living under one thousand meters was unknown.

An expedition to world’s deepest cave, Krubera-Voronja in Western Caucasus, revealed an interesting subterranean community, living below 2000 meters and represented by more than 12 species of arthropods, including several new species for science. This deep cave biota is composed of troglobionts and also epigean species, that can penetrate …

Impacts Of Urbanisation On The Native Avifauna Of Perth, Western Australia, Robert A. Davis, Cheryl Gole, J Dale Roberts

Research outputs 2013

Urban development either eliminates, or severely fragments, native vegetation, and therefore alters the distribution and abundance of species that depend on it for habitat. We assessed the impact of urban development on bird communities at 121 sites in and around Perth, Western Australia. Based on data from community surveys, at least 83 % of 65 landbirds were found to be dependent, in some way, on the presence of native vegetation. For three groups of species defined by specific patterns of habitat use (bushland birds), there were sufficient data to show that species occurrences declined as the landscape changed from variegated …

Externally-Expressed Fluorescence Across Sexes, Life Stages, And Species Of Spiders, Erin Brandt

Dissertations and Theses

Although all spiders possess fluorophores in their hemolymph, the expression of external fluorescence is much more restricted. The purpose of this study was to evaluate differences in externally-expressed fluorescence between sexes, life stages, and species of spiders. To approach this question, we developed novel instrumentation to capture fluorescence with photographs of our specimens. We paired these fluorescence measurements with spectrometer measurements to attempt to determine the role that fluorescence plays in the overall coloration in spiders. The study was divided into four sections. First, we examined how fluorescence varies in sexes and life stages in Misumena vatia, an ambush predator …

Post-Occupancy Evaluation At The Zoo: Behavioral And Hormonal Indicators Of Welfare In Orangutans (Pongo Pygmaeus Abelii), Leigha Tingey

Dissertations and Theses

An increased understanding of species-specific behavioral needs has lead zoos to focus on providing more naturalistic and stimulating environments. Scientific assessments of how changes in habitat affect animal behavior are necessary in improving overall animal welfare. This study examined the move of three orangutans housed at the Oregon Zoo into a new and innovative exhibit. Post-occupancy evaluation (POE), which offers systematic information regarding the success or failure of the built environment (Maple & Finlay, 1987), was utilized to effectively evaluate the results of the move. The collection of behavioral data and adrenal activity monitoring through collection of non-invasive saliva, urine …

Using Ecological Niche Modeling To Resolve Cryptic Taxa Within The Greenside Darter Species Complex, Jack Alphonse Kosmicki

Honors Program Theses

A major challenge for systematists is clearly identifying species early after a speciation event (Frost and Kluge, 1994; Wiens and Servedio, 2000; Coyne and Orr, 2004). Traditionally species delimitation is made based on morphological characteristics, behavioral differences, and/or genetic data. However, for cryptic species lineages, these approaches do not work as well because the lineages have subtle overlapping morphological and behavioral differences and lineage sorting may not be complete (Raxworthy et al., 2007). A far less common approach is to use ecological niche models (ENMs) to help identify new species. This approach holds strong potential for cryptic species in which …

Morphological Variation Among Populations Of Uca Rapax In The Gulf Of Mexico And Northern Caribbean, Amanda L. Brase

Honors Program Theses

This study explores the relationship between phenotypic variation in the carapace morphology and the geographic distribution of Uca rapax population in the Gulf of Mexico, Florida, and the Northern Caribbean Sea. Carapace or body shape in 37 populations is analyzed quantitatively and correlated with two habitat variables: salinity and location. Although there is morphological overlap among populations grouped by habitat, they are significantly different when sorted by geographic region. Populations from the northern and western Gulf of Mexico diverge from those in Florida, the Yucatan and the northern Caribbean implying restricted larval dispersal and/or differential habitat selection.