Ecological values of intermittent rivers for terrestrial vertebrate fauna

2021 ◽  
pp. 151308
Author(s):  
María Mar Sánchez-Montoya ◽  
Rosa Gómez ◽  
Jose F. Calvo ◽  
Tomáš Bartonička ◽  
Thibault Datry ◽  
...  
Keyword(s):  
Vertebrate Fauna ◽  
Terrestrial Vertebrate ◽  
Intermittent Rivers ◽  
Ecological Values

scholarly journals Olson's Extinction and the latitudinal biodiversity gradient of tetrapods in the Permian

2017 ◽  
Vol 284 (1852) ◽  
pp. 20170231 ◽  
Author(s):  
Neil Brocklehurst ◽  
Michael O. Day ◽  
Bruce S. Rubidge ◽  
Jörg Fröbisch
Keyword(s):  
North America ◽  
Mass Extinction ◽  
Fossil Record ◽  
Middle Permian ◽  
Lower Permian ◽  
Vertebrate Fauna ◽  
Terrestrial Vertebrate ◽  
Substantial Change

The terrestrial vertebrate fauna underwent a substantial change in composition between the lower and middle Permian. The lower Permian fauna was characterized by diverse and abundant amphibians and pelycosaurian-grade synapsids. During the middle Permian, a therapsid-dominated fauna, containing a diverse array of parareptiles and a considerably reduced richness of amphibians, replaced this. However, it is debated whether the transition is a genuine event, accompanied by a mass extinction, or whether it is merely an artefact of the shift in sampling from the palaeoequatorial latitudes to the palaeotemperate latitudes. Here we use an up-to-date biostratigraphy and incorporate recent discoveries to thoroughly review the Permian tetrapod fossil record. We suggest that the faunal transition represents a genuine event; the lower Permian temperate faunas are more similar to lower Permian equatorial faunas than middle Permian temperate faunas. The transition was not consistent across latitudes; the turnover occurred more rapidly in Russia, but was delayed in North America. The argument that the mass extinction is an artefact of a latitudinal biodiversity gradient and a shift in sampling localities is rejected: sampling correction demonstrates an inverse latitudinal biodiversity gradient was prevalent during the Permian, with peak diversity in the temperate latitudes.

The Terrestrial Vertebrate Fauna of the Dartmouth Dam Inundation Area

1976 ◽  
Vol 3 (2) ◽  
pp. 189 ◽  
Author(s):  
DJ Thomas ◽  
AM Gilmore
Keyword(s):  
Small Mammal ◽  
River Valley ◽  
Mammal Species ◽  
Vertebrate Fauna ◽  
Habitat Occupancy ◽  
Anuran Species ◽  
Terrestrial Vertebrate ◽  
Inundation Area ◽  
Small Mammal Species

A survey of the terrestrial vertebrate fauna of the Dartmouth Dam inundation area has shown the presence of 24 mammal, 100 bird, 24 reptile, and 10 anuran species. Some aspects of their ecology, including habitat occupancy, are discussed, and the trapping success for eight small mammal species in different habitats is compared. A zoogeographic analysis of the fauna demonstrates its heterogeneous and transitional nature, and it is probable that the unique community will be totally lost from the Mitta Mitta River Valley.

scholarly journals A new ornithischian dinosaur and the terrestrial vertebrate fauna from a bone bed in the Wealden of Ardingly, West Sussex

2017 ◽  
Vol 128 (3) ◽  
pp. 332-339 ◽  
Author(s):  
Susannah C.R. Maidment ◽  
Chloe Kirkpatrick ◽  
Brian Craik-Smith ◽  
Jane E. Blythe
Keyword(s):  
Vertebrate Fauna ◽  
Terrestrial Vertebrate

Signals of change in tropical savanna woodland vertebrate fauna 5 years after cessation of livestock grazing

2012 ◽  
Vol 39 (5) ◽  
pp. 386 ◽  
Author(s):  
A. S. Kutt ◽  
E. P. Vanderduys ◽  
J. J. Perry ◽  
G. C. Perkins ◽  
J. E. Kemp ◽  
...  
Keyword(s):  
Land Management ◽  
Habitat Type ◽  
Livestock Grazing ◽  
Interactive Effects ◽  
Individual Species ◽  
Management Activity ◽  
Vertebrate Fauna ◽  
Terrestrial Vertebrate ◽  
Eastern Australia ◽  
Species Richness And Abundance

Context There is growing evidence that vertebrates inhabiting the extensive savannas of northern Australia are undergoing a widespread decline as a result of the effects of anthropogenic land management such as the grazing of domestic stock. Despite the ubiquity of pastoral grazing in the Australian savannas, few studies have examined the changes in terrestrial vertebrate fauna following destocking. Aims The present study monitored the response of birds, mammals and reptiles to destocking of a newly acquired conservation reserve in north-eastern Australia. Methods The vertebrate fauna was sampled over a 5-year period. Standardised 1-ha survey was conducted twice a year in 2006, 2007 and 2010, at 40 sites representing six habitat types. Key results The fauna assemblage, the abundance and richness of major taxa, and the abundance of a suite of individual species were found to vary significantly with time since destocking. Although some of the observed trends were consistent with previously reported responses of vertebrates to grazing, in general species richness and abundance did not increase linearly over time since destocking, with an overall decline in the first year, and an increase in the subsequent survey. Mammals remained at very low abundance and displayed a trend contrary to that for birds and reptiles, and variation was often confounded by habitat type. Conclusions In general, where there has been a long history of pastoral land management, destocking alone may not induce short-term increases in the vertebrate fauna thought to be affected by grazing in Australian savannas. Implications Monitoring the outcomes of conservation management activity is a critical component of understanding the success, failures and adaptation needed to maximise the costs and benefits of conservation investment. The recovery of the vertebrate fauna thought to be of conservation concern in relatively intensively used, long-grazed landscapes may be lengthy and contingent on other factors, such as periods of favourable weather, or understanding the interactive effects of herbivore removal, fire pattern and feral predators. In such landscapes, it is possible that recovery of some elements of the vertebrate fauna may not occur without deliberate interventions, such as reintroductions or intense predator control.

scholarly journals VII. The distribution of vertebrate animals in India, Ceylon, and Burma

1901 ◽  
Vol 194 (194-206) ◽  
pp. 335-436 ◽  
Keyword(s):  
Geographical Distribution ◽  
British India ◽  
Vertebrate Fauna ◽  
Mountain Ranges ◽  
Indian Peninsula ◽  
Terrestrial Vertebrate ◽  
The North ◽  
Sketch Map

Thirty years ago I published a note on the geographical distribution of the Indian fauna, and proposed the division of the Indian Peninsula into certain provinces and sub-provinces distinguished by their zoological characters. Six years later, on the appearance of Wallace’s 'Geographical Distribution of Animals,’ I republished the scheme of geographical classification with a small sketch map. Both papers were merely statements of conclusions, without full details of the facts on which those conclusions were founded. The completion of the Vertebrata in the c Fauna of British India ’ affords an opportunity of reconsidering the whole question, and of reviewing generally the distribution of terrestrial vertebrate animals throughout the British possessions in India, Ceylon, and Burma. For the study of zoological distribution there are few, if any, regions on the earth’s surface that exceed British India and its dependencies in interest. The area is large, nearly 1,800,000 square miles, and although the vertebrate fauna is by no means thoroughly explored, it is well known throughout the greater part of the area, and fairly well throughout the whole ; better probably than in any other tropical and sub-tropical tract of approximately equal extent. The variety of elevation and of climate is remarkable ; the country is bounded on the north by the highest of known mountain ranges, and by the loftiest plateau on the earth’s surface, and it includes within its limits both the almost rainless area of the Sind Desert, and the locality in the Khási Hills distinguished by the heaviest rainfall known. Another element of interest is the fact that the Peninsula of India is a land of great geological antiquity, there being no evidence to show that it has ever been submerged, although the greater part of the Himalayas and Burma have at times been beneath the sea.

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