Biological parameters used in setting captive‐breeding quotas for Indonesia's breeding facilities

Conservation Biology, Journal Year: 2017, Volume and Issue: 32(1), P. 18 - 25

Published: July 3, 2017

Abstract The commercial captive breeding of wildlife is often seen as a potential conservation tool to relieve pressure on wild populations, but laundering wild‐sourced specimens bred can seriously undermine efforts and provide false sense sustainability. Indonesia at the center such controversy; therefore, we examined Indonesia's captive‐breeding production plan (CBPP) for 2016. We compared biological parameters used in CBPP with literature suggested by experts each species identified shortcomings CBPP. Production quotas 99 out 129 were based inaccurate or unrealistic deviated more than 10% from what allow for. For 38 species, quota exceeded number animals that be (range 100–540%) calculated equations lower reproductive output 88 published did not appear account other factors (e.g., different survival rate juveniles adult animals) involved proposed large numbers specimens. recommend adjusted so realistic are applied allocated if their unlikely successful no stock available. current create loopholes mean mammals, reptiles, amphibians declared may have been sourced wild.

Language: Английский

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Wildlife farming: Balancing economic and conservation interests in the face of illegal wildlife trade

People and Nature, Journal Year: 2024, Volume and Issue: 6(2), P. 446 - 457

Published: Jan. 19, 2024

Abstract Demand for wildlife and their products continues to grow, often despite increasingly militarised regulation consumer awareness campaigns. We review the sustainability, legality feasibility of farming animals, as a potential conservation tool ensure development an equitable sustainable trade model. While there are some positive examples well‐managed in trade, we identify common themes misuse including intentional mislabelling wild‐caught specimens global use individuals supplement captive stocks. also highlight frequent failure incorporate biological data into management strategies, resulting widespread species with potentially unfavourable life history traits, which constrain economic sustainability programmes. develop structured decision framework aid examination when may most benefit or hinder conservation. Synthesis applications . Key opportunities include developing suitability assessments removing barriers legitimate participation among poor, rural communities. In absence strategies that address issues accessibility, will continue place significant strain on wild populations while failing provide value returns. Read free Plain Language Summary this article Journal blog.

Language: Английский

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Seasonal changes in plasma concentrations of the thyroid, glucocorticoid and reproductive hormones in the tegu lizard Salvator merianae

General and Comparative Endocrinology, Journal Year: 2018, Volume and Issue: 273, P. 134 - 143

Published: June 19, 2018

Language: Английский

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Hormonal correlates of the annual cycle of activity and body temperature in the South-American tegu lizard (Salvator merianae)

General and Comparative Endocrinology, Journal Year: 2019, Volume and Issue: 285, P. 113295 - 113295

Published: Sept. 30, 2019

Language: Английский

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Zootherapeutic uses of wildmeat and associated products in the semiarid region of Brazil: general aspects and challenges for conservation

Journal of Ethnobiology and Ethnomedicine, Journal Year: 2018, Volume and Issue: 14(1)

Published: Sept. 17, 2018

Hunting wildlife for medicinal purposes is a widespread practice throughout Brazil; however, studies about the animals used zootherapeutic practices have been performed almost exclusively with traders (herbalists) and end consumers, not hunters. This makes it difficult to completely understand market chain, trade strategies, drivers of this practice. The present study investigated species hunted or trapped traditional uses by collecting data use zootheurapeutic species.We collected through semi-structured questionnaires complemented free interviews informal conversations hunters in five municipalities semiarid region NE Brazil. We calculated Use-Value (UV) index determine relative importance each reported interviewees. Multiple Linear Regression model was assess influence socioeconomic factors (age, schooling, residence zone, species) on richness exploited hunters.Hunters significant (n = 39) intentionally opportunistically captured as remedies treatment 92 diseases conditions humans livestock. Respondents also strategies that were well-organized quickly directed selling wild byproducts via modern technology. found weak positive relationship only between hunters' age MLR model.The hunting are culturally disseminated activities among Our results demonstrate studying order understanding dynamics bushmeat exploitation develop more efficient conservation.

Language: Английский

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Lizards (Reptilia: Squamata) from the Caatinga, northeastern Brazil: Detailed and updated overview

Vertebrate Zoology, Journal Year: 2022, Volume and Issue: 72, P. 599 - 659

Published: Aug. 12, 2022

Abstract The Caatinga is the largest seasonal dry tropical forest in South America and it has been historically neglected terms of its biodiversity. Regarding lizards, different studies led to current knowledge diversity endemism Caatinga, but detailed syntheses are scarce literature. We present most up-to-date synthesis about lizards by providing a (i) list species; (ii) taxonomic richness patterns; (iii) gaps spatial biases; (iv) distribution maps all species that contain at least one occurrence record within limits. created database using occurrences based on scientific collections, field collection, produce maps, calculate Extent Occurrence provide environmental bioclimatic profile for each recorded. draw sampling gap maps. Our 20,538 records Caatinga. recorded 93 lizard (13 families), 52.7% which endemic. Forthy-four percent restricted distributions. identified 53% area (or 70% municipalities) no lizards. data presented an important step towards synthesizing detail accumulated crucial accurate strategies conservation planning. It directs actions advance our lizards: concentrate inventories sample void areas; continuous update database, generation autoecology species.

Language: Английский

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Pre- and Postcopulatory Traits ofSalvatorMale Lizards in Allopatry and Sympatry

Scientifica, Journal Year: 2016, Volume and Issue: 2016, P. 1 - 9

Published: Jan. 1, 2016

The reproductive traits of males are under influence sexual pressures before and after copulation. strength selection varies across populations because they undergo varying competition for mating opportunities. Besides intraspecific pressures, individuals seem to be subjected driven by interspecific interactions in sympatry. Lizards may vary their strategies through characters, body size, gonadal investment, sperm traits. We evaluated the traits, involved pre- postcopulatory competition, allopatric sympatric Salvator lizards. observed a spatial gradient male among populations, with following order: zone S. rufescens ; zone; merianae . Accordingly, variation secondary character, relative testis mass, length component was between allopatry sympatry each species, suggesting differences investment However, we found that these two species did not differ characters Interestingly, trade-off testes muscle varied differently from social context on would affect lizard differently.

Language: Английский

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Relationship between pre- and post-copulatory traits inSalvator rufescens(Squamata: Teiidae)

Biological Journal of the Linnean Society, Journal Year: 2016, Volume and Issue: 119(4), P. 932 - 942

Published: July 14, 2016

Understanding pre- and post-copulatory mechanisms of sexual selection can provide insights into the evolution male reproductive strategies. The phenotype-linked fertility hypothesis postulates that sperm quality secondary characteristics will positively co-vary, whereas competition predicts a negative association between those traits. Male traits often show variation throughout period, suggesting relationship may vary temporally. Here, we evaluated character its temporal in Salvator rufescens, south American lizard. We observed jaw muscle principal piece length period. Collectively, our results evidenced trade-off strong seasonal flexibility strategies this lizard species.

Language: Английский

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Factors driving sexual dimorphism and colour variability in the Achala Copper Lizard (Pristidactylus achalensis), an endemic species to the highland mountains in central Argentina

Canadian Journal of Zoology, Journal Year: 2020, Volume and Issue: 98(6), P. 377 - 389

Published: March 7, 2020

The intensity of mating competition varies according to the temporal and spatial distribution individuals. Measuring sexual dimorphism over time interpreting association between individuals is therefore important if we aim understand how traits are influenced. We examined sex differences in Achala Copper Lizard (Pristidactylus achalensis (Gallardo, 1964)), an endemic species from highest part mountains central Argentina. Over 4 years, explored sex-specific variation body size, head interlimb length, colouration. Furthermore, evaluated these varied temporally, also whether explained by traits. found that P. a with multiple characters, including Interestingly, some related mating, such as width, show variability both sexes, whereas other traits, colouration, seasonally only males. Our results underline intriguing possibility seasonal morphological changes more broadly influenced selection pressures mediated mate competition.

Language: Английский

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Testicular abnormalities in the invasive Argentine Black-and-White Tegu (Salvator merianae) in the Florida Everglades

Reptiles & Amphibians, Journal Year: 2023, Volume and Issue: 30(1), P. e19517 - e19517

Published: June 5, 2023

Language: Английский

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