Biodiversity Assessment of Urban Parks and Bela Forest, Gujranwala, Punjab, Pakistan

Ayesha Qaiser1, Hafiz Muhammad Tahir1*, Khalil Ali2, Abu Huraira2, Abid Hussainy2, Fatima Ijaz1, Ayesha Muzamil1, Ayesha Afzal1 and Rabia Fajar Ali1

1Department of Zoology, Government College University Lahore

2The Urban Unit (Urban Sector Planning & Management Services Unit), Planning & Development Board, Lahore, Punjab.

Abstract | The present study was conducted to assess the biodiversity of Gujranwala city, focusing on floral and faunal components found in urban parks and conservation area (Bela Forest). Field surveys were carried out for two weeks to record plant and animal species, supported by stakeholders’ consultations. A total of 61 plant and 35 bird species were recorded during the survey. SWOT analysis revealed that most parks lack basic amenities (toilets, drinking water, seating etc.) and security particularly during evening hours. Outskirts of the Gujranwala city have scarce green spaces. Illegal logging, waste dumping, encroachment, sewage disposal into canals and parks were also observed. Invasive tree species like Paper Mulberry, Eucalyptus, and Conocarpus are adversely affecting native biodiversity, groundwater levels, and human health. These findings suggest that urban biodiversity can be improved by plantation of more native trees along with policy making and raising awareness. Significantly higher values of Menhinick (≥1.5), Shannon-Weiner (≥3.5), and Evenness index (≥0.87), calculated for plant biodiversity, were recorded at Gulshan Iqbal Park, Jinnah Park, Sheranwala Bagh, and Milaad e Mustafa. The higher values of diversity indices indicate a healthier, more balanced, and ecologically stable park. The urban residents of Gujranwala have access to an estimated 0.1 hectares of green space for every 1,000 individuals, with only 9.1% of the city’s residents living within 400 meters of a park or green area, which is considerably lower than the international standards. The outcomes of the present study offer a baseline for subsequent research and urban biodiversity management initiatives.

Novelty Statement | This study presents the biodiversity assessment of urban parks and Bela forest ecosystems in Gujranwala, Pakistan. It provides baseline ecological data using standardized diversity indices to support urban conservation and sustainable green space planning.


Article History

Received: July 27, 2025

Revised: November 05, 2025

Accepted: November 26, 2025

Published: May 02, 2026

Authors’ Contributions

AQ, AA, AM, FI, RFA: Data curation; HMT: Conceptualization and supervision; KA: Investigation; A Huraira: Visualization; A Hussainy: Supervision. All authors have read and approved the final version of the manuscript.

Keywords

Urban biodiversity, Gujranwala, Bela Forest, Conservation, Conservation area

Copyright 2026 by the authors. Licensee ResearchersLinks Ltd, England, UK. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

Corresponding author: Hafiz Muhammad Tahir

[email protected]

To cite this article: Qaiser, A., Tahir, H.M., Ali, K., Huraira, A., Hussainy, A., Ijaz, F., Muzamil, A., Afzal, A. and Ali, R.F., 2026. Biodiversity assessment of urban parks and Bela forest, Gujranwala, Punjab, Pakistan. Punjab Univ. J. Zool., 41(1): 85-94. https://dx.doi.org/10.17582/journal.pujz/2026/41.1.85.94



Introduction

As urban areas expand and more individuals relocate to cities, it becomes crucial to safeguard the nature within these urban centers. With the rapid expansion of urban areas, the challenge of conserving biodiversity has gained global attention. Biodiversity refers to all living things, from genes to entire ecosystems (Purvis and Hector, 2000). Conservation of urban biodiversity is essential as it supports human health by supplying essential resources such as medicinal compounds, nutrient-rich food, and clean water. It further supports human by creating visually appealing rich natural environments and spaces that foster the physical activity and social interaction (Van Genuchten, 2023). It strengthens ecosystem resilience which enable the ecosystem to sustain and adapt to climate change and other environmental pressures, helps preserve native species within rapidly urbanizing landscapes (Elmqvist et al., 2015; Aronson et al., 2017; Kumar, 2024), This also maintain the ecosystem services, such as pollination, nutrient cycling, and climate regulation.

Currently biodiversity is facing numerous threats due to anthropogenic activities which lead to significant ecological imbalances. Key factors include habitat destruction, climate change, invasive species, and pollution. Habitat destruction is a leading cause of biodiversity loss (Singh, 2014). Fragmentation divides habitats into smaller, isolated patches which hinders species movement and reproduction (Sher, 2022). Global warming also alters ecosystems, affecting species distribution and survival (Pecl et al., 2024). These threats not only endanger species but also compromise ecosystem services which are essential for human wellbeing.

Aim of current study is to assess the diversity of trees and animals especially birds and mammals in urban settings and Bela Forest of Gujranwala. Biodiversity assessment of Gujranwala’s urban parks and Forest is crucial for evaluating ecological integrity, species composition, and habitat quality of these areas. It is also helpful in identify native and invasive species of plants and animals, anthropogenic impacts on fauna and flora and enhancing ecosystem services. The outcomes of the study not only provide a baseline for biodiversity management in Gujranwala but also reveal where the city stands in comparison to other urban centers of Punjab. Such assessments also provide baseline data crucial for long-term monitoring and policy-making.

Materials and Methods

Study area

Gujranwala city was selected to assess the diversity of trees and animals from urban settings and Bela Forest (Figure 1). Gujranwala is the seventh largest city of the Pakistan (Naz et al., 2013). As per census Pakistan Bureau of Statistics (2023), the total population of Gujranwala is 25 million. The city has many developed and undeveloped parks which provided us better opportunity to assess biodiversity in urban areas. Table 1 presents the comprehensive list of parks included in the biodiversity assessment. Figure 2 depicts the spatial distribution of habitat types and conservation areas within Gujranwala. The field survey was conducted from February to March 2025.

 

Table 1: List of parks of and Gujranwala city.

S. No.

Parks of Gujranwala

1

Al Fatah Park

2

Aroop Park

3

Ayesha Bibi Park

4

Chahar Bagh

5

Ghulam Hussain Park

6

Gulshan Iqbal Park

7

Jinnah Park

8

Kashmir Park

9

Liaqat Park

10

Madar e Milat Park

11

Milad e Mustafa Park

12

Sheranwala Bagh

 

Collection of secondary source data

Prior to the collection of primary data, a comprehensive secondary research phase was undertaken. This involved an in-depth review of both peer-reviewed and grey literature, including official reports, policy documents, and datasets related to urban biodiversity, green and blue infrastructure, and environmental stressors specific to Gujranwala. Additionally, a series of consultative meetings were conducted with key institutional stakeholders, including representatives from the Parks and Horticulture Authority (PHA), Punjab Wildlife Department, and Forest Department. These engagements were essential for integrating expert perspectives and institutional expertise on the composition, distribution, and threats to urban flora and fauna.

 

The faunal diversity

To record the diversity of birds in different parks Point Count Method was used (Rosenstock et al., 2002). This is a common bird monitoring technique where observers record bird species and their numbers at specific locations, or points. During this method randomly selected points at different locations (Gulshan Iqbal Park, Jinnah Park, Model Town Park, Sheranwala Bagh and Kashmir Park) were observed for a fixed time (30 minutes) while staying there to made observations and count all the birds detected by sight or sound within a predetermined radius (50 m). The process was replicated across multiple sites to gather comprehensive data on population sizes and species richness. The process was replicated across five sites mentioned as mentioned earlier.

The diversity of other animals, including reptiles and mammals was recorded in Bela Forest using Transect Method, which is a widely used technique to record the distribution and abundance of various animal species across a specific area (Hessenmöller et al., 2013). A 3 km linear transect was selected within the Bela Forest and biodiversity survey was conducted by recording organisms at standardized intervals along transect to record the species. The traces like footprints and hairs along with other clues, were also recorded to confirm the presence of specific animals.

The floral diversity

To record the plant diversity above listed parks were physically visited and number of plants of each species was recorded. Plant species were identified by examining phyllotaxy and floral morphology, using available literature and the electronic flora of Pakistan. However, photographs of unidentified plants were taken and plant parts were sampled and brought to the Government College University Lahore for identification consulting the plant biodiversity experts at the University. The plants were also categorized on basis of their ecological status as native, invasive and introduced species. The richness, diversity and evenness of plant species were calculated by using Menhinick Index, Shannon-Weiner Index and Evenness Index, respectively.

Diversity indices

Menhinick index: It is a measure of species richness. It gives the quantification of biodiversity within a community. It is straightforward and easy to compute. It is widely used in making ecological assessments (Ozkan et al., 2024). The formula used to compute it is:

Dmn = S / √N

Where; S: Total number of species in the sample, N: Total number of individuals in the sample.

Shannon-weiner index

For the quantification of biodiversity and genetic diversity, the Shannon-Weiner Index was used. By considering both the number of species and their relative abundances, it measures the diversity of a community. It ranges from 0 (no diversity) to higher values indicating greater diversity (Ramezani, 2012). The index is calculated using following formula:

H = -Σ (pi * ln (pi))

Where, pi is the proportion of individuals of species i and ln is the natural logarithm.

Evenness index

The distribution of species abundances within an ecological community is assessed by using evenness index (E5). It is also known as modified Hill’s ratio. A value closer to 1 indicates more even distribution, while a value closer to 0 indicates dominance of a single species or genotype (Grünwald et al., 2003). E5 is less sensitive to changes in the total number of species or genotypes in the sample that’s why it is used (Neher et al., 2004). The formula is as follows:

E5 = (1/(Σ p²))/ln(N) or E5= ((1/(Σ p²)) - 1)/ (ln(N)- 1)

Where: p: represents the relative abundance of the i-th genotype (or species) in the sample; N: is the total number of genotypes (or species) in the sample. ln: is the natural logarithm.

SWOT analysis

This analysis was used to identify strengths, weaknesses, opportunities, and threats related to biodiversity and conservation efforts in Gujranwala. For this analysis, data were systematically collected on public facilities available within the parks, identified deficiencies, daily visitor counts across different parks, and staff availability. This comprehensive data was collected for a thorough assessment of park infrastructure, usage patterns and management capacity to inform sustainable urban green space planning and addressing biodiversity challenges (Gürel and Tat, 2017).

Health and well-being assessment

Structured interviews were conducted with the visitors to gather insights on user perceptions regarding park conditions and overall well-being. Additionally, the availability and accessibility of green spaces in Gujranwala were assessed by analyzing the population residing within a 400-meter radius of parks or green areas. The collected data were subsequently compared against established international benchmarks for urban green space provision and accessibility.

Results

Faunal profile of Gujranwala

A total number of 35 bird species were recorded from the Parks of the Gujranwala urban area. Out of 35 birds, 30 were local or resident birds, while 5 were the migratory birds. This number also include the species which were not physically observed but reported by the local stakeholders. The common birds recorded during the survey include Shikra, White-throated kingfisher, Litter swift, Cattle egret, Red-vented bulbul, Purple sunbird, Black kite, House sparrow, House crow, Common myna, Bank myna, Little brown dove, Common babbler and Pied bush chat.

In the Bela Forest Jungle cat, Golden jackal, Squirrel, Wild boar, Stray dogs and Rats were recoded. Figure 3 is showing number of five most common birds observed at different parks in Gujranwala. Detail list of bird species with their common and scientific names along with IUCN status are enlisted in Table 2.

Floral profile of Gujranwala

A total of 61 tree species were recorded from the urban parks and Bela Forest. Out of 61 plant species recorded from Gujranwala only 3 were invasive species, 24 introduced and 34 native species. A detailed list of plant species is given in Table 3. Common plants include certain species of Ficus, Neem, Palm species, Peepal, Sukh chain, Amaltas, Ulta ashoq, Alstonia, Kachnar, Conocarpus, Mulberry, Eucalyptus, Banyan, Palms and Bottlebrush. Figure 4 is showing the number tree species recorded from different Parks. Gulshan Iqbal Park (34) shows highest number of tree species followed by Sheranwala Park (33), Milaad e Mustafa Park (33), Jinnah Park (29), Liaqat Park (20), Madar e Millat Park (18), Al-Fatah Park (14), Chahar Baagh (10), Ghulam Hussain Park (9), Kashmir Park (GT Road) (5), Ayesha Bibi Park (5) and Aroop Park (3).

 

 

Table 2: List of birds recoded from parks and conserved areas (Bela forest) of Gujranwala.

S. No.

Common name

Scientific name

IUCN status

1

House Sparrow

Passer domesticus

LC

2

Common Myna

Acridotheres tristis

LC

3

Rock Pigeon

Columba livia

LC

4

Red-vented Bulbul

Pycnonotus cafer

LC

5

Eurasian Collared Dove

Streptopelia decaocto

LC

6

Laughing Dove

Spilopelia senegalensis

LC

7

Indian Koel

Eudynamys scolopaceus

LC

8

House Crow

Corvus splendens

LC

9

Jungle Babbler

Argya striata

LC

10

Pied Myna

Gracupica contra

LC

11

Bank Myna

Acridotheres ginginianus

LC

12

White-throated Kingfisher

Halcyon smyrnensis

LC

13

Common Kingfisher

Alcedo atthis

LC

14

Little Egret

Egretta garzetta

LC

15

Cattle Egret

Bubulcus ibis

LC

16

Black Kite

Milvus migrans

LC

17

Shikra

Accipiter badius

LC

18

Green Bee-eater

Merops orientalis

LC

19

Asian Green Bee-eater

Merops leschenaultia

LC

20

Purple Sunbird

Cinnyris asiaticus

LC

21

Indian Robin

Copsychus fulicatus

LC

22

Oriental Magpie-Robin

Copsychus saularis

LC

23

Common Tailorbird

Orthotomus sutorius

LC

24

Ashy Prinia

Prinia socialis

LC

25

Rose-ringed Parakeet

Psittacula krameri

LC

26

Brown-headed Barbet

Psilopogon zeylanicus

LC

27

Common Hoopoe

Upupa epops

LC

28

Indian Roller

Coracias benghalensis

LC

29

Common Swallow

Hirundo rustica

LC

30

Common Rock Chat

Cercomela fusca

LC

31

Indian Ring Dove

Streptopelia decaocto

LC

32

Little Brown Dove

Streptopelia senegalensis

LC

33

Red Turtle Dove

Streptopelia tranquebarica

LC

34

Common Babbler

Turdoides caudatus

LC

35

Common Hoopoe

Upupa epops

LC

 

Diversity indices

Figure 5 is showing biodiversity indices of different parks of Gujranwala. Gulshan Iqbal Park, Jinnah Park, Sheranwala Bagh, and Milaad e Mustafa Park represent high values of biodiversity with elevated Menhinick (≥1.5) and Shannon-Weiner indices (≥3.5), indicating a rich and diverse species presence. Their Evenness values (≥0.87) reflect a more balanced distribution among species. In contrast, Al Fatah, Aroop, and Ayesha Bibi Parks show low diversity and evenness, with all indices indicating poor ecological richness and dominance of a few species. Kashmir Park and Chahar Baagh have moderate Menhinick index values but low evenness and Shannon-Weiner scores, suggesting that species are not evenly distributed.

 

Table 3: List of plant species recorded from different urban parks and protected area (Bela forest) of Gujranwala.

S. No

Common name

Scientific name

Ecological status

1

Aerocaria

Araucaria araucana

Introduced

2

Amaltas

Cassia fistula

Local

3

Amrood

Psidium guajava

Introduced

4

Anaar

Punica granatum

Local

5

Anjeer

Ficus carica

Introduced

6

Arjun

Terminalia arjuna

Local

7

Bakain (Darek)

Melia azedarach

Local

8

Beri (Indian jujube)

Ziziphus mauritiana

Local

9

Boardh

Ficus benghalensis

Local

10

Bottle Brush

Callistemon viminalis

Introduced

11

California fan palm

Washingtonia filifera

Introduced

12

Cedar

Cedrus deodara

Local

13

Chandani

Tabernaemontana divaricata

Local

14

Citrus (mosambi)

Citrus limetta

Introduced

15

Conocarpus

Conocarpus erectus

Invasive

16

Date palm

Phoenix dactylifera

Introduced

17

Devil Tree (Alstonia)

Alstonia scholaris

Introduced

18

Gab

Diospyros blancoi

Introduced

19

Gold mohar

Delonix regia

Introduced

20

Gul e cheen

Plumeria rubra

Introduced

21

Ipil ipil (Epple epple)

Leucaena leucocephala

Introduced/Invasive

22

Jacaranda

Jacaranda mimosifolia

Introduced

23

Jamun

Syzygium cumini

Local

24

Jhar Beri (Wild jujube)

Ziziphus nummularia

Local

25

Jia Patta (Patta jin)

Putranjiva roxburghii

Local

26

Kachnar

Bauhinia variegata

Local

27

Kanair

Nerium oleander

Local

28

Kari patta

Murraya koenigii

Local

29

Lagerstroemia

Lagerstroemia speciosa

Local

30

Lasoora

Cordia dichotoma

Local

31

Louqath

Eriobotrya japonica

Introduced

32

Mango

Mangifera indica

Local

33

Melaleuca

Melaleuca quinquenervia

Introduced/Invasive

34

Molsari

Mimusops elengi

Local

Table continued on next page...................

S. No

Common name

Scientific name

Ecological status

35

Nag phali

Heterophragma adenophyllum

Local

36

Neem

Azadirachta indica

Local

37

Oak

Quercus spp.

Local

38

Peepal

Ficus religiosa

Local

39

Pilkhan

Ficus virens

Local

40

Pine

Pinus wallichiana

Local

41

Pygmy date palm

Phoenix roebelenii

Introduced

42

Queen palm

Syagrus romanzoffiana

Introduced

43

Ras phali

Grewia asiatica

Local

44

Royal palm

Roystonea regia

Introduced

45

Rubber plant

Ficus elastica

Introduced

46

Safeda (River Red Gum)

Eucalyptus camaldulensis

Invasive

47

Safeda (Lemon-scented)

Eucalyptus citriodora

Invasive

48

Sausage tree (Kheera)

Kigelia africana

Introduced

49

Seedha Ashoq

Saraca asoca

Local

50

Sheesham

Dalbergia sissoo

Local

51

Shehtoot

Morus alba

Introduced

52

Shirin

Colchicum autumnale

Introduced

53

Silk floss

Ceiba speciosa

Introduced

54

Silver Oak

Grevillea robusta

Introduced

55

Silver Thatch Palm

Coccothrinax argentata

Introduced

56

Sohanjana

Moringa oleifera

Local

57

Sukh Chaen

Pongamia pinnata

Local

58

Sumbal

Bombax ceiba

Local

59

Terminalia

Terminalia mentalis

Introduced

60

Ulta ashoq

Polyalthia longifolia

Local

61

Weeping Fig

Ficus benjamina

Introduced

 

 

SWOT analysis of Gujranwala city

The SWOT analysis of Gujranwala city was conducted based on the field assessment and repeated consultation sessions with the community, institutions and stakeholders.

Strengths

Gujranwala city possess diverse ecosystems with multiple green spaces such as Jinnah Park, Gulshan-e-Iqbal Park, Sheranwala Bagh, Aroop Park, Liaqat Park, and Chahar Bagh and Nawaz Sharif Park. Jinnah Park is well-maintained with walking tracks, seating and play areas, Gulshan Iqbal Park attracts families and fitness enthusiasts while Sheranwala Bagh holds historical significance and hosts cultural events. These green areas not only serves as recreational hubs but also support migratory and native birds. Wildlife and PHA departments in collaboration of Yar Madadgar NGO are actively working to plant native trees in parks, installing birds houses and soil recharging system in different parks. A parrot house has also been established in Gulshan-e-Iqbal Park. Wildlife Department conducts raids against illegal bird hunting and trading in the area as result of which population of sparrows which was under threat is once again increasing rapidly. Bela Forest is contributing significantly to the conservation of habitat and environmental education. It also acts as a natural carbon sink with native trees (Sheesham, Kikar, Mulberry, Suck chain etc.) and wildlife and serves as recreational hub by providing people access with the nature. Initiatives like “Clean and Green Pakistan,” urban forestry, and plantation drives are actively working for the improvement of green infrastructure in city. In Gujranwala, the engagement of school and citizen plays an important role in environmental awareness.

Weakness

Basic amenities like public toilets, restrooms, prayer rooms, wifi facility, clean drinking water, waste bins and seating desks are not available in most of the parks including smaller parks (Al-Fatah, Ayesha Bibi Park). Central city areas have parks but outskirts have limited number of green spaces. Security issues (low staffing, poor lightening and drug use) were observed in Kashmir Park and Liaqat Park. Illegal logging, waste dumping, and encroachment was reported by the stakeholders. Pollution from industrial waste and sewage disposal into canals was also recorded, which is significantly affecting water quality and aquatic life. Invasive tree species like Paper Mulberry, Eucalyptus, and Conocarpus are posing negative impacts on native biodiversity, groundwater levels, and human health. Poor management was observed in Al-Fatah and Chahar Park. These parks have broken boundaries, lack security, and insufficient maintenance. No dedicated biodiversity research and monitoring system is available in the city.

Opportunities

To promote Eco-Tourism in Bela Forest bird-watching towers and educational signage should be installed. Water coolers and plastic waste management containers should be installed through cooperation of Nestlé, Coca-Cola, Sufi Ghee etc. Solar lights, rainwater harvesting, and digital apps for reporting park’s related issues should also be added. Expanding parks, green corridors, and mini forests can reconnect fragmented habitats. The involvement of community in awareness campaigns and conservation drives can enhance environmental stewardship. Butterfly gardens and bird sanctuaries can be established in major parks of Gujranwala like Jinnah Park, Gulshan-e-Iqbal Park, Sheranwala Bagh etc. to attract visitors. Adopt a park initiative for maintenance may be introduced especially in the parks located in housing societies. Cross-sector collaboration between public departments, private stakeholders, and academia can bring expertise and funding to biodiversity-focused projects.

Threats

In markets, there is illegal selling of bird’s species like house sparrows and falcons, despite bans. In Gatwala Forest, poachers target wintering ducks and cranes using illegal nets. Wildlife Department lacks patrol vehicles, while local police rarely assist. There is lack of public awareness, only few person know that harming birds can pose heavy fines under Punjab Wildlife Act. Emissions from vehicles, factories, and construction activities are degrading air and soil quality leading to biodiversity decline. Littering, vandalism, and illegal use of public green spaces such as Al-Fatah Park pose risks to wildlife and plant health. Shrinking of green spaces increase human-wildlife conflicts, such as stray dog attacks or loss of bird nesting sites due to pesticide use and pollution. Invasive trees like Eucalyptus, Conocarpus, and Paper Mulberry continue to compete with native flora. These invasive trees fail to support species like the Indian Robin and Red-vented Bulbul in urban environments.

Health and well-being assessment

The availability of green spaces is significantly below international standards in Gujranwala, with only 0.1 hectares of green space per 1,000 people. Moreover, only 19.1% of Gujranwala’s population resides within 400 meters of a park or green area. Figure 6 is showing population living near green spaces and open ground in Gujranwala.

Discussion

As urbanization accelerates across Pakistan, urban cities like Gujranwala face many challenges in preserving their biological diversity. Current study aimed to assess the biodiversity status of Gujranwala urban parks and Bela Forest. The findings of this study underscore the urgent need for biodiversity action plans for this rapidly developing city. Parks serve as the biodiversity hotspots and play crucial role in biodiversity conservation by providing habitats for various species and maintain ecological balance. They preserve native species of diverse plants and animals and are critical for maintaining species richness despite the urban matrix (Nielsen et al., 2014). When designing urban parks, it is important to think about the needs of different types of species, like birds, insects, and plants. Each group depends on different things to survive. For example, birds may need trees to build nests, while insects might need flowers or moist soil. By including a mix of plants, water, shade, and open areas, parks can support more kinds of wildlife. This helps in making better plans to protect many species in cities (Khurshida, 2022).

 

The Gujranwala city support diverse bird species, with 35 species recorded. The majority of birds are local or resident species, while a smaller portion comprises migratory birds. Common urban birds such as the House sparrow, Common myna, Red-vented bulbul, House crow, and Black bite were frequently recorded in the area. In terms of mammalian fauna, Gujranwala’s Bela Forest is home to species such as the Jungle cat, Golden jackal, Wild boar, and Squirrel, suggesting the presence of more natural and forested habitats in the area. Present research was carried out in the month of February-March, but if the observation period or duration would have been extended then there would have been chances of a high number of observed species. Also, migratory birds typically have a seasonal trend and recoded number of species may vary with time of survey. The study carried out by Altaf et al. (2012) reported 41 bird species in urban regions of Gujranwala but 35 bird species were seen in our study. This difference is possibly because of difference in timing of study conduction. Another study identified 24 bird species from different nesting sites such as electricity towers and transmission lines in Gujranwala with House crow and Black kite as the most common birds in Gujranwala (Noreen and Sultan, 2022).

A total of 61 tree species were recorded from Gujranwala urban parks. In Gujranwala, common plant species include Ficus, Neem, Palm species, Peepal, Sukh chain, Amaltas, Ulta ashoq, Alstonia, Kachnar, Conocarpus, Mulberry, Eucalyptus, Banyan, Palms and Bottlebrush. Gujranwala hosts a higher proportion of native species (34 out of 61). The number of introduced species is 24, indicating a higher dependency on native flora in its urban green areas. The number of invasive species is 3, suggesting ecological threat from these plants. Invasive plants significantly impact local plant life by outcompeting them for resources, altering habitats, and reducing biodiversity (Rai and Singh, 2020).

This city is comprised of parks with range of high, moderate, and low levels of tree biodiversity. It reflects variability in ecological status across different parks of the city. Top parks in the city (e.g., Jinnah, Gulshan Iqbal, Milaad e Mustafa) exhibit high species richness, diversity, and evenness, indicating healthier and more balanced ecosystems. Low-performing parks in the city (e.g., Al Fatah, Ayesha Bibi) show poor biodiversity scores, dominated by few species, suggesting a need for conservation or restoration efforts.

The outcome of SWOT analysis showed that the presence of well-maintained parks in Gujranwala (Jinnah Park, Gulshan-e-Iqbal Park, and Model Town Park) supports a wide range of floral and faunal diversity. They also attract more visitors and provide peaceful environment. They can be a great source of revenue generation. Protected areas also play a vital role in conserving biodiversity by protecting habitats that support threatened species, thereby helping to prevent biodiversity loss (Ozkan et al., 2024). Protected areas like Bela Forest (Gujranwala) are the source of biodiversity hub as they conserve many species like sparrows, jackal, cat, bull, dear, bat species and much more. These protected areas can be used as grounds for conserving many kinds of species including threatened and endangered. The absence of boundary walls, lack of security and facility of toilets is major problem among parks of Gujranwala (Al-Fatah and Chahar Park) which is needed to be addressed. Moreover, the lack of basic requirements such as clean drinking water and restrooms evident in Gulshan-e-Iqbal Park (Gujranwala) negatively affects visitor comfort and safety. People don’t like to visit such parks as they are not user-friendly. Such parks can be maintained and improved by implementing certain laws and regulations. The presence of invasive species in the parks such as Paper Mulberry, Eucalyptus, and Conocarpus is major threat to local species. Paper Mulberry spread rapidly in forest zones and significantly affect local ecosystems (Apetorgbor and Bosu, 2011). Eucalyptus spp. invasions threaten native biodiversity by disrupting ecosystem stability and integrity thus, it negatively impact native plant species (Badalamenti et al., 2018). Conocarpus outcompetes native plants for resources, disrupting local biodiversity and potentially leading to the extinction of endemic species and its presence can alter habitat structures, affecting the overall ecosystem functions and services that native species provide (Sesay et al., 2024).

Complete eradication of invasive flora is not possible but step-wise measures can be taken to encourage plantation of native species in parks and discourage invasive tree species in plantation derives. Habitat fragmentation is caused by the urban sprawl and leads to loss of many species. This issue can be solved by expanding parks and establishing connections between ecological corridors. Promoting ecotourism and raising awareness about species conservation not only support environmental protection but also contribute to revenue generation. Major threats to biodiversity include climate change, pollution, deforestation, and urbanization, all of which have negative effects on the environment. It is essential to implement effective solutions (stricter environmental regulations, sustainable land use, protected area expansion, emission reduction, green technologies, public awareness campaigns, reforestation, pollution control, eco-friendly urban planning etc.) to minimize these threats in order to ensure the conservation of local biodiversity.

Health and Well Being Assessment in Gujranwala is crucial due to fluctuating environmental conditions. Health of residents is adversely affected by various factors i.e., high pollution levels, rapid urbanization and loss of green spaces. During the survey in various parks, most of the visitors were of the view that green spaces have significant impact on their physical and mental health. They feel relaxed and fresh from their frustrated lives after visiting these parks.

As recommended by the World Health Organization (WHO) cover area for green spaces must be 9 square meters per person but in Gujranwala 0.1 hectares of green space per 1,000 people is available as calculated using City Biodiversity Index as compared to 0.9 hectares/1,000 persons which is an international standard. This shortfall highlights a critical gap in urban planning concerning environmental health and community wellbeing. Only 9.1% of Gujranwala’s population is residing within 400 meters of a park or green area underlines the urgent need for targeted interventions to enhance green infrastructure and ensure equitable access across the city.

Currently limited published data is available regarding the urban biodiversity assessment. In the absence of previous records focusing specifically urban biodiversity, the current study offers a foundation for future research and long-term monitoring of biodiversity in the rapidly urbanizing cities. This biodiversity assessment of Gujranwala city not only provides a baseline for understanding the current state of urban flora and fauna but also highlights urgent management needs. Strategic planning and its proper implementation are crucial for the preservation and enhancement of existing biodiversity. These goals can be achieved through the active involvement of the government, non-governmental organizations (NGOs), and the local community.

Declarations

Acknowledgement

This study was supported by the Urban Unit, Lahore under the Government of Punjab’s Planning and Development (P and D) Department, for GIS mapping and analysis.

Funding

This survey based study was funded by Urban Unit Planning and Development Department, Punjab, Pakistan.

IRB approval

The study was approved by departmental review board of Zoology Department, GC University Lahore.

Ethical statement

The study was conducted as per international standards. During the study no animal was harmed or killed.

Data availability statement

Data is available and can be provided on request.

Generative AI and AI-assisted technology statement

The authors declare that no generative AI and AI assisted technology was used in the creation of this manuscript.

Statement of conflict of interest

The authors have declared no conflict of interest.

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