Mortality of wild amphibians and reptiles admitted to a Wildlife Rehabilitation Center in Northern Portugal (2009 – 2017)

2021 ◽  
Vol 28 (2) ◽  
pp. 89-96
Author(s):  
Andreia Garcês ◽  
Felisbina Queiroga ◽  
Fernando Pacheco ◽  
Luis Sanches Fernandes ◽  
Vanessa Soeiro ◽  
...  

The data from 78 native species of reptiles and amphibians admitted to the Wildlife Rehabilitation Center of Parque Biológico de Gaia (Portugal) from 2009 to 2017 were revised to determine the main causes of morbidity and mortality. These data include four different orders: order Squamata (51.3%), order Testudinata (12.8%), order Anura (12.8%), and order Caudata (2.6%). 92.3% of the considered admittances were adults arriving during spring (41%) and autumn (29.5%). The main causes of admission to Rehabilitation Center were animals debilitated (12.8%) and injured (66.7%). Trauma was the major cause of mortality (78.2%). Unknown origin was the main cause of traumatic (71.8%) and non-traumatic (9.0%) death, followed by captivity related lesions (6.4%). These animals are excellent bioindicators of the health of the ecosystem and enable the identification of the main threats affecting them, especially those of anthropogenic origin. Studies of mortality on wild reptiles and amphibians are important to understand which the main threats and how human activity is affecting these populations.

2019 ◽  
Author(s):  
Grant Duffy ◽  
Jasmine R Lee

Warming across ice-covered regions will result in changes to both the physical and climatic environment, revealing new ice-free habitat and new climatically suitable habitats for non-native species establishment. Recent studies have independently quantified each of these aspects in Antarctica, where ice-free areas form crucial habitat for the majority of terrestrial biodiversity. Here we synthesise projections of Antarctic ice-free area expansion, recent spatial predictions of non-native species risk, and the frequency of human activities to quantify how these facets of anthropogenic change may interact now and in the future. Under a high-emissions future climate scenario, over a quarter of ice-free area and over 80 % of the ~14 thousand km2 of newly uncovered ice-free area could be vulnerable to invasion by one or more of the modelled non-native species by the end of the century. Ice-free areas identified as vulnerable to non-native species establishment were significantly closer to human activity than unsuitable areas were. Furthermore, almost half of the new vulnerable ice-free area is within 20 km of a site of current human activity. The Antarctic Peninsula, where human activity is heavily concentrated, will be at particular risk. The implications of this for conservation values of Antarctica and the management efforts required to mitigate against it are in need of urgent consideration.


2020 ◽  
Vol 56 (2) ◽  
pp. 288
Author(s):  
Michelli Lopes de Souza ◽  
Mateus Lotério Coelho ◽  
Angélica Oliveira da Silva ◽  
Lucas Bezerra da Silva Azuaga ◽  
Cláudia Regina Macedo Coutinho Netto ◽  
...  

Bird Study ◽  
2019 ◽  
Vol 66 (4) ◽  
pp. 484-493 ◽  
Author(s):  
Andreia Garcês ◽  
Isabel Pires ◽  
Fernando Pacheco ◽  
Luís Sanches Fernandes ◽  
Vanessa Soeiro ◽  
...  

2010 ◽  
Vol 44 (1) ◽  
pp. 30-39 ◽  
Author(s):  
Beneharo Rodríguez ◽  
Airam Rodríguez ◽  
Felipe Siverio ◽  
Manuel Siverio

2010 ◽  
Vol 3 (4) ◽  
pp. 515-520 ◽  
Author(s):  
Laura A. Meyerson ◽  
Adam M. Lambert ◽  
Kristin Saltonstall

AbstractThe common reed invasion in North America has spanned two centuries and is still ongoing. This expansion comprises two main forms: an introduced Eurasian lineage (identified here as “Introduced Phragmites”) and a Gulf Coast lineage of unknown origin (identified here as “Gulf Coast Phragmites”). Both lineages are spreading beyond their current ranges and are colonizing Southwestern and Gulf Coast ecosystems where they have not previously existed. As a result, the native North American lineage of common reed (hereafter “native Phragmites”) has declined in many places. The recent invasion of the U.S. Southwest by Introduced and Gulf Coast Phragmites lineages has made this the only region in the world colonized by all three lineages. Along the central Gulf Coast where Gulf Coast Phragmites remains the dominant form, Introduced Phragmites has also recently invaded the Mississippi River delta. The consequences of these new invasions are uncertain, but a rapid response is needed to protect native species and ecosystems and reduce future control costs.


2016 ◽  
Vol 52 (3) ◽  
pp. 647 ◽  
Author(s):  
Natalia Montesdeoca ◽  
Pascual Calabuig ◽  
Juan A. Corbera ◽  
Jorge Orós

2007 ◽  
Vol 28 (4) ◽  
pp. 475-484 ◽  
Author(s):  
Guillermo Velo-Antón ◽  
César Ayres ◽  
Adolfo Cordero Rivera ◽  
Raquel Godinho ◽  
Nuno Ferrand

Abstract The pet trade is an important business around the world and one of the factors that might menace some wild populations. If wild animals are collected to maintain them as pets, this activity can produce several problems: i) an increase of population vulnerability, especially in the case of rare species; ii) the release of exotic pets in natural habitats, with the risk of competition with native species and the spreading of parasites and diseases, and iii) the maintenance of animals of unknown origin in Recovery Centres or zoos, which if too numerous are sacrificed or re-located to their supposed original regions. In this paper, we used seven microsatellite loci to analyze genetic diversity and genetic structure of the European pond turtle (Emys obicularis) covering the species range in the Iberian Peninsula. A Bayesian test revealed a genotypic differentiation between the regions sampled where most individuals (90%) were assigned to their sampling location with a probability higher than 95%. The likelihood values for individuals from Recovery Centres to came from one of our populations was higher than 90% in 22 out of 36 individuals. This work is a first step to relocate animals of unknown origin taking into account genetic similarities and contribute to reinforcement programs of endangered species.


One Health ◽  
2021 ◽  
pp. 100298
Author(s):  
Carla Baros Jorquera ◽  
Andrea I. Moreno-Switt ◽  
Nicole Sallaberry-Pincheira ◽  
Jose M. Munita ◽  
Camila Flores Navarro ◽  
...  

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