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Articles 36931 - 36960 of 42912
Full-Text Articles in Entire DC Network
Back Matter (Pdf), The Condor
Front Matter (Pdf), The Condor
Back Matter (Pdf), The Condor
Return Of Reddish Egrets As Breeding Birds In Tampa Bay, Florida, Richard T. Paul, Andrew J. Meyerriecks, Frank M. Dunstan
Return Of Reddish Egrets As Breeding Birds In Tampa Bay, Florida, Richard T. Paul, Andrew J. Meyerriecks, Frank M. Dunstan
Florida Field Naturalist
No abstract provided.
Lesser Scaup Mortality In Tampa Bay, Florida, 1974, Ralph W. Schreiber, Frank M. Dunstan, James J. Dinsmore
Lesser Scaup Mortality In Tampa Bay, Florida, 1974, Ralph W. Schreiber, Frank M. Dunstan, James J. Dinsmore
Florida Field Naturalist
No abstract provided.
Caspian Tern Nesting In Florida, 1973 And 1974, Florida Field Naturalist
Caspian Tern Nesting In Florida, 1973 And 1974, Florida Field Naturalist
Florida Field Naturalist
No abstract provided.
A Recent Mountain Plover Specimen From Florida, Florida Field Naturalist
A Recent Mountain Plover Specimen From Florida, Florida Field Naturalist
Florida Field Naturalist
No abstract provided.
First Nesting Of The House Sparrow At Dry Tortugas, Florida Field Naturalist
First Nesting Of The House Sparrow At Dry Tortugas, Florida Field Naturalist
Florida Field Naturalist
No abstract provided.
Food Of The White Ibis In Southern Florida, James A. Kushlan, Marilyn S. Kushlan
Food Of The White Ibis In Southern Florida, James A. Kushlan, Marilyn S. Kushlan
Florida Field Naturalist
No abstract provided.
A Note On The Feeding Habits Of Male Barbour's Map Turtles, Florida Field Naturalist
A Note On The Feeding Habits Of Male Barbour's Map Turtles, Florida Field Naturalist
Florida Field Naturalist
No abstract provided.
Royal Tern Nesting On West-Coast Peninsular Florida, Florida Field Naturalist
Royal Tern Nesting On West-Coast Peninsular Florida, Florida Field Naturalist
Florida Field Naturalist
No abstract provided.
Interaction Between Competition And Predation In Cave Stream Communities, David C. Culver
Interaction Between Competition And Predation In Cave Stream Communities, David C. Culver
International Journal of Speleology
Predation by salamander larvae (Gyrinophilus porphyriticus) reduces the density of one of its prey (the isopod Asellus recurvatus) but increases the density of the other (the amphipod Crangonyx antennatus in a Virginia cave stream. This happens because predation on the isopod reduces its competitive effect on the amphipod. Both prey populations tend to occur more frequently in refugia when predators are present. In another cave where there are no prey refugia, the predator reduces the density of both species. It appears that it is easier for a predator to invade a community than to reach a stable …
Social Interactions In Flocks Of Courting Wilson's Phalaropes (Phalaropus Tricolor), Marshall A. Howe
Social Interactions In Flocks Of Courting Wilson's Phalaropes (Phalaropus Tricolor), Marshall A. Howe
Condor
No abstract provided.
Back Matter (Pdf), The Condor
Range Extensions And New Records For Bird Species In Ecuador, Peru, And Bolivia, David L. Pearson
Range Extensions And New Records For Bird Species In Ecuador, Peru, And Bolivia, David L. Pearson
Condor
No abstract provided.
Intraspecific Agonistic Behavior Of Ospreys (Pandion Haliaetus), Gary J. Schroeder, Wayne E. Melquist
Intraspecific Agonistic Behavior Of Ospreys (Pandion Haliaetus), Gary J. Schroeder, Wayne E. Melquist
Condor
No abstract provided.
The Bulletin Board, The Condor
Contribution Á L'Étude Des Zonitidae (Gastropoda) Cavernicoles Et Endogés De Roumanie, Alexandrina Negrea
Contribution Á L'Étude Des Zonitidae (Gastropoda) Cavernicoles Et Endogés De Roumanie, Alexandrina Negrea
International Journal of Speleology
This paper is a contribution to the study of the species of cavernicolous and endogean Zonitidae from Romania. For each of the 24 species belonging to 6 genera we present the geographical distribution, their relation to the country’s territory and data concerning the morphological characteristics, the genital apparatus included. The paper ends with a short faunistic, zoogeographical and ecological analysis.
Versuche Zur Erfassung Der Vertikalen Verteilung Von Organismen Und Chemischen Substanzen Im Grundwasser Von Talauen Und Terrassen; Methoden Und Erste Befunde, Siegfried Husmann
Versuche Zur Erfassung Der Vertikalen Verteilung Von Organismen Und Chemischen Substanzen Im Grundwasser Von Talauen Und Terrassen; Methoden Und Erste Befunde, Siegfried Husmann
International Journal of Speleology
In the alluvial ground of the river Fulda valley and in the diluvial terrace of the river Weser assortments of tubes of various lengths were sunk into sandy and gravely underground to bring to light groundwater of different depths. The installation of these groundwater pump stations was effectuated by two different methods: 1. with the aid of an apparatus for bringing down bore-holes, 2. by ramming in the pump tubes with the aid of a pneumatic hammer. The first biological and chemical investigations in these subterranean water research stations indicated that the vertical distribution of groundwater organisms and chemical substances …
Stenasellus Kenyensis N.Sp., Crustacea Isopoda Asellota Des Eaux Souterraines Du Kénya, Guy Magniez
Stenasellus Kenyensis N.Sp., Crustacea Isopoda Asellota Des Eaux Souterraines Du Kénya, Guy Magniez
International Journal of Speleology
Description of the first cavernicolous Stenasellid discovered in Kenya. St. kenyensis n.sp. is related to Somalian and Eurasiatic species of the genus.
Un Parajapygidé Inédit Des Plages De La Côte Caraïbe De Cuba Récolté Par Mr. L. Botosaneanu Au Cours De La Seconde Expédition Biospéléologique Cubano-Roumaine À Cuba En 1973, J. Pages
International Journal of Speleology
P. (P.) botosaneanui n.sp. has been collected in the interstitial habitat of the Caribbean shores on the eastern coast of Cuba. This note is divided into 6 parts: 1) the description by L. Botusaneanu of the stations where this species has been collected and data on the possibility for the specimens of this taxa to swim and to creep between the grains of sand; 2) the description and the affinities of the n. sp., which is closely related to bonetianus Silv. from Mexico; 3) the study of the male genitalia made possible the definition of 4 instars (male 1 to …
Symposium On Life Histories Of Cave Beetles: An Introduction, Thomas L. Poulson
Symposium On Life Histories Of Cave Beetles: An Introduction, Thomas L. Poulson
International Journal of Speleology
Overview of the six papers presented at the Symposium on Life Histories of Cave Beetles held at the 1973 annual convention of the National Speleological Society at Bloomington in Indiana (USA).
The Life Cycle Of A Kentucky Cave Beetle, Ptomaphagus Hirtus, (Coleoptera; Leiodidae; Catopinae), Stewart B. Peck
The Life Cycle Of A Kentucky Cave Beetle, Ptomaphagus Hirtus, (Coleoptera; Leiodidae; Catopinae), Stewart B. Peck
International Journal of Speleology
Ptomaphagus hirtus has been successfully kept in laboratory culture at 12.5°C with food in surplus at all times. Eggs hatched in 18.5 days. Three larval instars were present, which had a total larval life span of 42 days. The pupal stage lasted 32 days. Adult males and adult females had average life spans of 2.2 years and 1.6 years respectively. Maximum adult longevity was 4.2 years. Females reached reproductive maturity a month after eclosion, young and old females produced one egg every 3.5 and 3.8 days respectively, and were reproductively active for as long as 2.5 years. Compared to European …
Studies On The Niche Separation In Two Carabid Cave Beetles, Tom Mckinney
Studies On The Niche Separation In Two Carabid Cave Beetles, Tom Mckinney
International Journal of Speleology
Population, habitat and behavioural studies carried out on Pseudanophthalmus menetriesi and P. pubescens in the south central Kentucky karst area are described and discussed. Differences which exist in the timing of population recruitment, habitat preference, habitat niche breadth and in the degree of agression are all important in lessening competition between these two species.
Seasonal Changes In A Population Of Pseudanopthalmus Tenuis (Coleoptera, Carabidae) In Murray Spring Cave, Indiana: A Preliminary Report, James H. Keith
Seasonal Changes In A Population Of Pseudanopthalmus Tenuis (Coleoptera, Carabidae) In Murray Spring Cave, Indiana: A Preliminary Report, James H. Keith
International Journal of Speleology
A study of a population of Pseudanophthalmus tenuis is being conducted in Murray Spring Cave, Orange County, Indiana as one facet of a larger research project encompassing the entire terrestrial community of that cave. Changes in behaviour and abundance determined by census and mark-recapture methods and physiological changes determined from field-collected beetles indicates that these animals exhibit a seasonal reproductive rhythm probably mediated or controlled by winter and spring flooding of the cave.
A Population Study Of The Cave Beetle Ptomaphagus Loedingi (Coleoptera; Leiodidae; Catopinae), Stewart B. Peck
A Population Study Of The Cave Beetle Ptomaphagus Loedingi (Coleoptera; Leiodidae; Catopinae), Stewart B. Peck
International Journal of Speleology
Baited pitfall traps were used in Barclay Cave, Alabama, in 1965 to study a blind Ptomaphagus beetle population. A 40m2 area in the cave yielded 95% of the 897 adult and larval beetles trapped in the cave at 9 stations. This represented a population density of about 13 beetles/m2. Tests of different baits showed decayed meat to be the most attractive. Adults were most abundant in mid-August when substrate conditions were moist, were reproductively active, and were not newly emerged from pupal cells. Larvae were most abundant in late August. The population was studied by mark-recapture methods …
The Ecology Of A Predaceous Troglobitic Beetle, Neaphaenops Tellkampfii (Coleoptera: Carabidae, Trechinae) I. Seasonality Of Food Input And Early Life History Stages, Thomas C. Kane, Russell M. Norton, Thomas L. Poulson
The Ecology Of A Predaceous Troglobitic Beetle, Neaphaenops Tellkampfii (Coleoptera: Carabidae, Trechinae) I. Seasonality Of Food Input And Early Life History Stages, Thomas C. Kane, Russell M. Norton, Thomas L. Poulson
International Journal of Speleology
The adaptations in the life history of the Carabid beetle Neaphaenops tellkampfii has been investigated in respect to seasonal food input. The following characters have been studied: copulations, egg production, larvae and pupae.
Observations Sur La Biologie De Stenasellus Virei (Crustacea Isopoda Asellota Des Caux Souterraines), Guy Magniez
Observations Sur La Biologie De Stenasellus Virei (Crustacea Isopoda Asellota Des Caux Souterraines), Guy Magniez
International Journal of Speleology
St. virei has been bred in the laboratory for many years (1960-1974). Most of the St.v.hussoni were captured in karstic waters, near the Moulis subterranean laboratory. Some St.v.virei from the Padirac sink-hole; St.v.buchneri from Cantabrian caves; St.v.boui and St.v.virei from phreatic waters; and St.buili and St.breuili have also been bred. Since Stenasellids are unable to swim, very low aquariums are used, with a bed of cave clay, some calcareous stones, dead wood and dead elm tree leaves. Little depth of water is necessary. Stenasellus was originally carnivorous, being able to capture and devour living prey, such as Chironomid larvae, but …
Chronologie Du Développement Et Évolution Du Stockage De Calcium Et Des Cellules À Urates Chez Niphargus Schellenbergi Karaman, François Graf, Philippe Michaut
Chronologie Du Développement Et Évolution Du Stockage De Calcium Et Des Cellules À Urates Chez Niphargus Schellenbergi Karaman, François Graf, Philippe Michaut
International Journal of Speleology
The intra-marsupial development of Niphargus schellenbergi is divided into three phases: within the chorion, embryonic intermoult and juvenile intermoult. The disappearance of the chorion divides the first phase from the second. A double exuviation exists between the last two. The chronology of the embryonic development and of the beginning of post-embryonic development is established. On hatching the juvenile N. schellenbergi has one pair of hepatopancreatic caeca. During the first post-embryonic intermoults the ventral hepatopancreatic caeca, posterior caeca and anterior caecum are formed. The relation between posterior caeca and the aorta is described. The study of calcium storage before moulting showed …
Distribution Of Indiana Cavernicolous Crayfishes And Their Ecto-Commensal Ostracods, H. H. Hobbs Iii
Distribution Of Indiana Cavernicolous Crayfishes And Their Ecto-Commensal Ostracods, H. H. Hobbs Iii
International Journal of Speleology
Six species and subspecies of crayfishes and four species of entocytherid ostracods are known to inhabit the subterranean streams of southern Indiana. Cambarus (E.) Iaevis (troglophile) appears to be the most widely distributed crayfish and occurs in both karst areas within the State. The troglobite, Orconectes inermis (2 subspecies), is restricted to the larger karst area in solution cavities of Mississippian carbonate rocks. The remaining crayfishes, Orconectes immunis, Orconectes propinquus and Orconectes sloanii, are not common inhabitants of cave waters and are probably trogloxenes. All of the crayfishes except O. sloanii were found to host at least one …